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YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

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Series Variable Displacement Piston Pumps ................................ P15 Compact and Lightweight A compact design and an aluminum body ensures a high power to mass ratio. Low Noise Series Variable Displacement Piston Pumps ...................................... P27 A variety of control methods are supported Available in a wide range of displacements from 10 to 219 cm 3 /rev (.610 to 13.36 cu. in. /rev) Series Variable Displacement Piston Pumps .......................... P117 Variable displacement piston pumps offer high pressure, high performance in a simple and compact package. High volumetric efficiency High Pressure: 35 MPa (5080 PSI) These pumps maintain a high volumetric efficiency, even at a pressure of 35 MPa (5080 PSI). Available in a wide range of displacements Seven models are available in displacements ranging of 16.3 to 180.7 cm 3 /rev (.995 to 11.03 cu. in./rev). Yuken offers low noise/high efficiency, swash plate type variable displacement piston pumps. These pumps have been developed by Yuken's leading hydraulic engineers and provide a diverse lineup to meet a wide range of application requirements. Ten types of unique control methods are available which integrate amplifiers and sensors. These control types range from standard pressure compensator control to proportional solenoid pressure/flow control. A PISTON PUMPS 13
Transcript
Page 1: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

Series Variable Displacement Piston Pumps ................................ P15

Compact and LightweightA compact design and an aluminum body ensures a high power to mass ratio.

Low Noise

Series Variable Displacement Piston Pumps ...................................... P27

A variety of control methods are supported

Available in a wide range of displacements from 10 to 219 cm3/rev (.610 to 13.36 cu. in./rev)

Series Variable Displacement Piston Pumps .......................... P117

Variable displacement piston pumps offer high pressure, high performance in a simple and compact package.

High volumetric efficiency

High Pressure: 35 MPa (5080 PSI)

These pumps maintain a high volumetric efficiency, even at a pressure of 35 MPa (5080 PSI).

Available in a wide range of displacementsSeven models are available in displacements ranging of 16.3 to 180.7 cm3/rev (.995 to 11.03 cu. in./rev).

Yuken offers low noise/high efficiency, swash plate type variable displacement piston pumps. These pumps have been developed by Yuken's leading hydraulic engineers and provide a diverse lineup to meet a wide range of application requirements.

Ten types of unique control methods are available which integrate amplifiers and sensors. These control types range from standard pressure compensator control to proportional solenoid pressure/flow control.

APISTON PUMPS

13

Page 2: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"AR" Series Variable Displacement Piston Pumps

"A" Series Variable Displacement Piston Pumps

"A3H" Series Variable Displacement Piston Pumps

14

Page 3: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

GraphicSymbol

Page

MaximumOperatingPressure

MPa (PSI)

16 (2320)"AR" SeriesVariable DiplacementPiston Pumps

18M

O

" " Series Variable Displacement Piston Pumps

AR16Axial Port Type

AR16Side Port Type

"AR" series variable displacement pump has been developed which the aim of even further the quientness in operation, smaller in size and lighter in mass and based on Yuken technology and engineering which put on market the "A" series pump which has a reputation for its quiet operation and high efficiency.

Pump Type

1 2 5 10 20 50 100 200 300

Geometric Displacement

3 cm /rev

cu. in./rev.1 .2 .5 1 2 5 10 15

AR16

AR22

15

Page 4: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

Hydraulic Fluids

Hydraulic Fluids Control of ContaminationUse petroleum base oils such as anti-wear type hydraulic oils or R & O (Rust and Oxidation inhibitor) type hydraulic oils equivalent to ISO VG-32 or 46. The recommended viscosity range is from 20 to 400 mm2/s (98 to 1800 SSU) and temperature range is from 0 to 60 °C (32 to 140 °F), both of which have to be satisfied for the use of the above hydraulic oils.

Due caution must be paid to maintaining control over contamination of the operating oil which can otherwise lead to breakdowns and shorten the life of the unit.Please maintain the degree of contamination within NAS Grade 10.The suction port must be equipped with at least a 100 µm (150 mesh) reservoir type filter and the return line must have a line type filter of under 10 µm.

Instructions

Mounting Drain PipingWhen installing the pump the filling port should be positioned upwards.

Alignment of ShaftEmploy a flexible coupling whenever possible, and avoid any stress from bending or thrust.Maximum permissible misalignment is less than 0.1 mm (.004 inches) TIR and maximum permissible misangular is less than 0.2°.

Suction PressurePermissible suction pressure at inlet port of the pump is between -16.7 and +50 kPa (5 in.Hg Vacuum and 7 PSIG).For piping to the suction port, use the pipes of the same diametre as that of the specified pipe flange to be used.Make sure that the height of the pump suction port is within one metre (3.3 ft) from the oil level in the reservoir.

Hints on PipingWhen using steel pipes for the suction or discharge ports, excessive load from the piping to the pump generates excessive noise.Whenever there is fear of excessive load, please use rubber hoses.

Suction PipingIn case the pump is installed above the oil level, the suction piping and suction line filter should be located lower than the pump position to prevent air in the suction line.

Install drain piping according to the chart and ensure that pressure within the pump housing should be maintained at a normal pressure of less than 0.1 MPa (14.5 PSI) and surge pressure of less than 0.5 MPa (72.5 PSI).Length of piping should be less than 1 m (3.3 ft.), and the pipe end should be submerged in oil.In case AR16 and AR22 pump, a screw-in torque of fitting is 40 to 50 Nm (354 to 443 IN.1bs.). Do not apply bending and thrust torque to the fitting.

Bleeding AirIt may be necessary to bleed air from pump case and outlet line to remove causes of vibration. An air bleed valve (Model Number ST1004-*-10*, Page 820) is recommended for this purpose.

[Recommended Drain Piping Size]

ModelFitting Size

N.AmericanDesign Std.

Japnese Std. "JIS" &European Design Std.

SAE #83/8

Inside Dia.of Pipe

AR16, AR22[Inside Dia. 8.5 mm (.33 in.) or more]

10 mm(.39 in.)

"AR" Series Variable Displacement Piston Pumps16

Page 5: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

Model Numbers

1.5 (.092)

2.1 (.128)

AR16

AR22

Model NumbersAdjustment Volume

MPa (PSI)

2.9 (420)

5.4 (780)

AR16/AR22-FR01B

AR16/AR22-FR01C

Model

AR16 AR22

430 (26.2)

3 3 Volume cm (in. )

Adjustable volume with each full turn of the adjustment

screw 3 cm /rev (cu.in./rev)

Minimum adjustable flow 3 cm /rev (cu.in./rev)

6 (.366)

8.5 (.519)

[Volume of Pre-fill Oil Required]

Adjustment of Discharge Pressure

Volume adjusted by each full turn of the pressure adjustment screw

Adjustment of Delivery

The minimum adjustable flow and adjustable volume ofeach full turn of the delivery adjustment screw

StartingBefore first starting, fill pump case with clean operating oil via the filling port.In order to avoid air blockage when first starting, adjust the control valves so that the discharged oil from the pump is returned direct to the reservoir or the actuator moves in a free load.

Setting Discharge Pressure and DeliveryAt the time of shipment, the unit has been preset to maximum delivery and minimum discharge pressure.Adjust the preset delivery and pressure to meet your system requirements.

Turning the adjustment screw clockwise, increases pressure.

Turning the delivery adjustment screw clockwise, decreases delivery.

17

PISTON PUMPS

"AR

"S

erie

s

A

"AR" Series Variable Displacement Piston Pumps

Page 6: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

DIMENSIONS INMILLIMETRES (INCHES)

Model

AR16

A16

Approx. Mass (Flange Mtg.)

Ratio of Mass (AR16/A16)

9.8 kg (21.6 lbs.)

16.5 kg (36.4 lbs.)60 %

130(5.12)

188(7.40)

187(

7.36

)

190(

7.48

)

Smaller in Size and Lighter in Mass

FeaturesLow Noise

[Comparison of "AR16" with "A16"]

"AR" Series Variable Displacement Piston Pumps

OUT

IN

Spool

Control Piston

Pivot

Journal Bearing

Shaft

Yoke

Slipper Retainer

Piston Ass'ySpring

Cylinder Block

Port Plate

Flow Adj. Screw

Pressure Adj. Screw

Pressure Compensator Valve

Drain Port

A16,32 Design

263.5(10.37)Fully Extended

240(9.45)Fully Extended

AR16,20 Design

As indicated in the dimensional comparison presented below, the AR16 is smaller than the A16 (32 design). Also, the mass of AR16 is substantially lighter than the A16.

The noise level of AR16 has been reduced by 1-2 dB (A) at full flow and full cut-off compared with that of the excellent A16 quiet pump.

"AR" Series Variable Displacement Piston Pumps18

Page 7: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

19

PISTON PUMPS

"AR" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

"AR

"S

erie

s

A

21

Model NumbersGeometric

Displacement 3 cm /rev (cu.in./rev)

Operating Pressure MPa (PSI)

Shaft Speed Range r/min.

Approx. Mass

kg (lbs.)Rated Intermittent Max. Min.

AR16-FR01*-20/2080/20950

AR22-FR01*-20/2080/20950

15.8

22.2

( .964)

(1.355)16 (2320)

1800

1800

600

6009.8 (21.6)

AR16

Refer to

20F:Flange Mtg.

B: 1.2 - 7 170 - 1020

R:Clockwise (Normal)

*-F R 01 B -20

Mounting Design Std.Design NumberPres. Adj. Range

MPa (PSI)Direction of

RotationSeries Number Control Type

20

AR163 (15.8 cm /rev)

AR223 (22.2 cm /rev)

01:Pressure Compensator Type

C: 2.0 - 16 290 - 2320

None:Axial Port

S

PortPosition

S:Side Port

Viewed from Shaft End

Pump Model Numbers

Name of

PortJapanese Standard

"JIS"

European Design

Standard

N. American Design

Standard

Japanese Standard "JIS"

European Design Standard

N. American Design Standard

Socket WeldingThreaded Connection

Pipe Flange Kit Numbers

F5-06-A-1021 F5-06-A-10801 F5-06-A-10950 F5-06-B-1021 F5-06-B-10901Suction

Discharge

AR16-FR01AR22-FR01

M

O

Graphic Symbol

Discharge port is available only for the threaded connections.Detail of the pipe flange kits are shown on page 24.

Specifications

When setting the pressure, make sure the full cut-off pressure never exceeds the maximum intermittent pressure.

2. Design Standards:None......... Japanese Standard "JIS"80950

.............

...........European Design StandardN. American Design Standard

Pipe Flange KitsPipe flange kits are available. When ordering, specify the kit number from the table below.

Model Number Designation

1. Available to supply pump with anti-clockwise rotation.Consult Yuken for details.

"AR" Series Variable Displacement Piston Pumps – Single Pump,Pressure Compensator Type

Approx. Masskg (lbs.)Mtg. Bracket Kit Numbers

LP-1A-10

Pump Model Numbers

AR16/AR22-FR01 2.2 (4.9)

Mounting Bracket KitsMounting bracket available on separate order.Refer to page 24 for dimennsions of the Mtg. bracket.

Note: The mounting bracket kit consists of a mounting bracket, two hex. bolts and two plain washers.

Page 8: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"AR" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type20

Typical Pump Characteristics of Type "AR16" at Viscosity 20 mm2/s (100 SSU) [ISO VG32 Oils, 50°C (122°F)]E

ffic

ienc

y

100

80

60

kW8

6

420

HP1210

420

68

Inpu

t Pow

er

HP1210

420

68

Inpu

t Pow

er

%

Eff

icie

ncy

100

80

60

kW8

6

4

20

%N=1500 r/min N=1800 r/min

30

10

0

206

2

0

4

8

Out

put F

low

L/min U.S.GPM30

10

0

206

2

0

4

8

Out

put F

low

L/min U.S.GPM

0 4 8 12 16 MPa

0 500 1000 PSI200015002320Pressure

Input Power

Output Flow

Volumetric Efficiency

Overall Efficiency

Input Power

Overall Efficiency

Volumetric Efficiency

0 4 8 12 16 MPa

0 500 1000 PSI200015002320Pressure

kW

12

10

4

2

0

6

8

Inpu

t Pow

er

HP 10

4

2

0

6

8

0 5 10 15 25L/min

0 U.S.GPMOutput Flow

20 30

1 2 43 6 75 8

N=1500 r/min N=1800 r/min

0 5 10 15 25 L/min

0 U.S.GPM

20 30

kW

12

10

4

2

6

8

Inpu

t Pow

er

HP 10

4

2

0

6

8

0

P= (2030)14

P= (1740)12

P= (1450)10P= (1160)8P= (870)6

P= (580)4

P= (290)2P= (100)0.7

P=MPa(PSI)P=MPa(PSI)P= (2030)14

P= (1740)12

P= (1450)10P= (1160)8

P= (870)6

P= (580)4

P= (290)2P= (100)0.7

0 4 8 1612 MPa

0 500 1000 PSI200015002320Full Cut-off Pressure

Ful

l Cut

-off

Pow

er

kW2.0

1.5

0

1.0

HP1.5

0

0.5

1.0

0.51500 r/min

1800 r/min

1.5

0

0.5

1.0

2.0

100

0

120

80

60

40

20

0 4 8 1612 MPa

0 500 1000 PSI200015002320

Pressure

Output Flow

Full Cut-off

Full Flow

N=1800 r/min

N=1500 r/min

1500,1800 r/min

Full Cut-off

Full Flow

Full Cut-off

Full Flow

0 500 1000 PSI200015002320Pressure

0 4 8 1612 MPa

0 500 1000 PSI200015002320Pressure

0 4 8 1612 MPa

Dra

in

dB(A)80

50

60

70

40

Noi

se L

evel

dB(A)80

50

60

70

40

Noi

se L

evel

N=1500 r/min N=1800 r/min

L/min3 in. /min

Performance Characteristic Curve

Input Power

Full Cut-off Power

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover]

Drain

Output Flow

87654321

Page 9: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

21

PISTON PUMPS

"AR" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

"AR

"S

erie

s

ATypical Pump Characteristics of Type "AR22" at Viscosity 20 mm2/s (100 SSU) [ISO VG32 Oils, 50°C (122°F)]

N=1500 r/minVolumetric Efficiency

Overall Efficiency

Input Power

Output Flow

Volumetric Efficiency

Input Power

Overall Efficiency

N=1800 r/min

1500 r/min1800 r/m

in

Full Cut-off

Full Flow

1800 r/min

1500 r/min

1500,1800 r/min

Full Cut-off

Full Flow

Full Cut-off

Full Flow

Eff

icie

ncy

100

80

60kWHP

1210

42

68

Inpu

t Pow

er

%

0 84 12 16 MPa

0 500 1000 PSI200015002320Pressure

30

10

0

206

2

0

4

8

Out

put F

low

L/minU.S.GPM40 10 E

ffic

ienc

y

100

80

60kWHP1210

42

68

Inpu

t Pow

er

%

4

8

12

16

0

30

10

0

206

2

4

8

Out

put F

low

L/min U.S.GPM40

10

00 84 12 16 MPa

Pressure

0 500 1000 PSI200015002320

kW

12

10

4

2

0

6

8

Inpu

t Pow

er

HP

10

4

2

0

6

8

0 10 20 40 L/min

0 U.S.GPMOutput Flow

30 50

2 4 6 8 1210

N=1500 r/min

P= (2030)14

P= (1740)12

P= (1450)10

P= (1160)8

P= (870)6

P= (580)4

P= (290)2

P= (145)1

P=MPa(PSI)14 N=1800 r/min

P= (2030)14

P= (1740)12

P= (1450)10

P= (1160)8

P= (870)6

P= (580)4

P= (290)2

P= (145)1

P=MPa(PSI)kW

12

10

4

2

0

6

8

Inpu

t Pow

er

HP

10

4

2

0

6

8

0 10 20 40 L/min

0 U.S.GPMOutput Flow

30 50

2 4 6 8 1210

14

0 4 8 1612 MPa

0 500 1000 PSI200015002320Full Cut-off Pressure

Ful

l Cut

-off

Pow

er

kW2.0

1.5

0

1.0

HP1.5

0

0.5

1.0

0.5

1.5

0

0.5

1.0

2.0

100

0

120

80

60

40

20

0 4 8 1612 MPa

0 500 1000 PSI200015002320Pressure

Dra

in

L/min3 in. /min

N=1500 r/min N=1800 r/min

0 500 1000 PSI200015002320Pressure

0 4 8 1612 MPa

dB(A)80

50

60

70

40

Noi

se L

evel

0 500 1000 PSI200015002320Pressure

0 4 8 1612 MPa

dB(A)80

50

60

70

40

Noi

se L

evel

Output Flow

4

8

12

16

0

Performance Characteristic Curve

Input Power

Full Cut-off PowerDrain

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover]

Page 10: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"AR" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type22

Response Characteristics Change in Accordance with Circuits and Operating Conditions.

SOL

M

O

Hydraulic High Pressure Hose 3/4" 1 m (3.3 ft.)

Conditions

Test Circuit and Conditions

Circuit

Drive Speed : 1500 r/minHydraulic Fluid : ISO VG32 oilOil Temperature : 50 °C (122 °F)

2 Viscosity : 20 mm /s (100 SSU)

Full Cut-off Pressure P

MPa (PSI)Model 1

t t 1 2

Response Time ms

Overshoot Pressure

MPa (PSI)

AR16

AR2216 (2320)

60

70

65

70

7.3 (1060)

Ps

P 1

t 2 t 1

SOL

OFF ON OFF

2 MPa (290 PSI) 2 MPa (290 PSI)Time

Pressure

Result of Measurement

Full Cut-off Pressure P

MPa (PSI)Model 1

t1 t2

Response Time ms

Overshoot PressurePs

MPa (PSI)

5.6 ( 810)

1

2

Result of Measurement

Page 11: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

23

PISTON PUMPS

"AR" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

"AR

"S

erie

s

A

DIMENSIONS INMILLIMETRES (INCHES)

Axial Port Type

Side Port Type

AR16/AR22-FR01*-20

AR16/AR22-FR01*-2080

AR16/AR22-FR01*-20950

"C" Thd.

Rc 3/4

3/4 BSP.F

SAE #12

M10

3/8-16 UNC

"D" Thd.

Rc 3/8

3/8 BSP.F

SAE #8

"E" Thd.

Rc 1/4

1/4 BSP.Tr

SAE #4

"F" Thd.Model Numbers

AR16/AR22-FR01*S-20

AR16/AR22-FR01*S-2080

AR16/AR22-FR01*S-20950

"C" Thd.

Rc 3/4

3/4 BSP.F

SAE #12

M10

3/8-16 UNC

"D" Thd.

Rc 3/8

3/8 BSP.F

SAE #8

"E" Thd.Model Numbers

172(6.77)

50(1

.97)

10(.39)

195.5(7.70)Fully Extended

68(2.68) (.26)

19.0

5(.7

500)

Pressure Gauge Connection"F" Thd

19.0

2(.7

488)

Dia

.25

6.5

(.98)

(1.75)

44.5

21.2

4(.8

36)

21.0

8(.8

30)

77(3

.03)

47.6

(1.8

74)

82.5

5(3.

2500

)82

.50(

3.24

80)

Dia

.

Lock Nut 13(.51) Hex.

Drain Port "D" Thd.

Filling Port [22(.87) Hex. Head Plug Furnished]

147(5.79)

Flow Adj. Screw 13(.51) Hex.

DEC.

AR16-FR01*-20/2080/20950AR22-FR01*-20/2080/20950

AR16-FR01*S-20/2080/20950AR22-FR01*S-20/2080/20950

Install the pump so that the "Filling port" is at the top.

106(4.17)

12(.

47)

165.5(6.52)

Fully Extended

Fully Extended100.5(3.96)

4.79(.1886)4.76(.1874)

96(3

.78)

114

(4.4

9)76

(2.9

9)

130(5.12)

INC.

Pressure Adj. Screw 13(.51) Hex.

Lock Nut 13(.51) Hex.

95(3.74) Dia.32.5 32.5

120(4.72)

(1.28) (1.28)

47.6

(1.8

74)

"E" Thd. 17(.67) Deep

2 Places

Suction Port 19(.75) Dia.

Discharge Port "C" Thd.

Discharge Port Suction Port19 (.75) Dia.

"E" Thd. 17 (.67) Deep2Places

"C" Thd.

Drain Port"D" Thd.

For other dimensions, refer to "Axial Port Type".

158(6.22)

74(2.91)

74(2.91)

22.2(.874)

22.2

(.874)

31(1

.22)

Page 12: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"AR" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type24

DIMENSIONS INMILLIMETRES (INCHES)

17(.67)

50(1.969)

56.5(2.22)

95(3.74)

27.5(1.08)

95(3.74)

72.5(2.854)

72.5(2.854)

180(7.09)

80(3

.15)

15 (.59

)

145.

5(5

.73)

3(.1

2)

12(.47) Dia. Through 24(.94) Dia. Spotface 4 Places

Mtg. Bracket

Hex. Bolt (2 Pcs.)M10 25 Lg.

Plain Washer(2 Pcs.)

14 (.55

)

Mtg. Bracket Kit: LP-1A-10

Threaded Connection

Socket Welding

Pipe Flange Kit for Suction Port

Japanese Std. "JIS": F5-06-A-1021

European Design Std.:F5-06-A-10801

F5-06-B-1021/10901

N. American Design Std.:F5-06-A-10950

11(.43) Dia. Through2 Places

11(.43) Dia. Through17.5(.69) C' bore

2 Places

11(.43) Dia. Through2 Places

3/4 BSP. F Thd.

Rc 3/4 Thd.

O-RingSO-NB-G30

O-RingSO-NB-G30

O-RingSO-NB-G30

SAE #12

O-RingSO-NB-G30

Soc. Hd. Cap Screw (2 Pcs.)M10 45 Lg.

Soc. Hd. Cap Screw (2 Pcs.)M10 35 Lg.

Soc. Hd. Cap Screw (2 Pcs.)

Soc. Hd. Cap Screw (2 Pcs.)3/8-16UNC 1-1/2 Lg.

48(1.89)

22.2(.874)

30(1.18)

15(.59)

47.6

(1.8

74)

66(2

.60)

48(1.89)

22.2(.874)

31(1.22)

20(.79)

10.8(.43)

14.8(.58)

0.3 – 0.5(.01 – .02)

34(1.34)

19(.75)

11.5(.45)

15.6(.61)

0.2 – 0.5(.01 – .02)

47.6

(1.8

74)

70(2

.76)

48(1.89)

22.2(.874)

15(.59)

C

8(.31)

47.6

(1.8

74)

27.7

Dia

.(1

.09)

66(2

.60)

Approx. Mass ............... 0.5 kg (1.1 lbs.)

Approx. Mass ............... 0.5 kg (1.1 lbs.)

Approx. Mass ............... 0.3 kg (.66 lbs.)

×

F5-06-B-1021

F5-06-B-10901

Cmm (In.)

15 (.59)

16.75 (.66)

Japanese Std. "JIS"European Design Std.

N. American Design Std.

Soc. Hd. Cap Screw RemarksKit Numbers

M10 45Lg.

3/8-16 UNC 1-1/4 Lg.

Page 13: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

25

PISTON PUMPS

"AR" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

"AR

"S

erie

s

ASpare Parts List

ItemAR16-FR01 AR22-FR01

5

17

19

20

30

31

32

54

62

1

1

1

1

3

1

1

1

1

1302-PK312891-5

6305

HMK 1715 V2 Z30-1303-PK410300-8

TCN 254511

Name of PartsPart Numbers

Qty.

Gasket

Bearing

Bearing

Oil Seal

O-Ring

O-Ring

O-Ring

O-Ring

O-Ring

SO-NB-P9

SO-NA-P8

SO-NB-P14

SO-NA-A018

SO-NB-P10

70 1O-Ring SO-NB-A905

63

51 52 53 55 56 57 58 59 60 61

Z

Z

29 12 14 23 11 10 6 35 34 4 27 1 3 25

38

39

40

41

42

9 28 37 36 8 7 2 22 18

1621 26 33 241315

When ordering seals, please specify the seal kit number from the table below.

Section Z-Z

Design "20950" Only

AR16-FR01*-20/2080/20950AR22-FR01*-20/2080/20950

62

54

31 30 32

5 2019

17

71

Pump Model Numbers

AR16-FR01*-20/2080/20950

AR22-FR01*-20/2080/20950

Seal Kit Number

KS-AR16-01-20

List of Seals & Bearings

List of Seal Kits

70

Page 14: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"AR" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type26

A16/A22-F-R-01-*-K

AR16/AR22-FR01

Description A16-*-R-01-*-K-32*Model

AR16-FR01*-20* A22-*-R-01-*-K-32* AR22-FR01*-20*

Operating Pres. Intermittent

Rated

Geometric Displacement

Shaft Speed Range

Approx. Mass (Flange Mtg.)

3 /rev (.964 cu.in./rev) 3 22.2 cm /rev (1.355 cu.in./rev)

16 MPa (2320 PSI)

21 MPa (3050 PSI) 16 MPa (2320 PSI)

600 -1800 r/min

16.5 kg (36.4 lbs.) 9.8 kg (21.6 lbs.)

16 MPa (2320 PSI)

16 MPa (2320 PSI)

600 -1800 r/min

16.5 kg (36.4 lbs.) 9.8 kg (21.6 lbs.)

Model Numbers Interchangeability in Installation

"A" Series "AR" SeriesMtg. Flange &

Shaft End Suction Port Discharge Port Drain Port

Piping

A16-*-R-01-*-K-32*A22-*-R-01-*-K-32*

AR16-FR01*-20*AR22-FR01*-20*

Yes Yes No No

A16/A22-F-R-01-*-K-32

A16/A22-F-R-01-*-K-3280

A16/A22-F-R-01-*-K-32950

"C" Thd.

M10

3/8-16 UNC

"D" Thd.

Rc 3/8

3/8 BSP.F

SAE #8

"E" Thd.

Rc 1/4

1/4 BSP.Tr

SAE #4

"F" Thd.Model Numbers

AR16/22-FR01*-20

AR16/22-FR01*-2080

AR16/22-FR01*-20950

Rc 3/4

3/4 BSP.F

SAE #12

Rc 3/8

3/8 BSP.F

SAE #8

M10

3/8-16 UNC

Suction Port 19 Dia.

"E" Thd. 17 Deep 2 Places

Pressure Adj. ScrewFlow Adj. Screw

Filling PortDrain Port "D" Thd.

Discharge Port "C" Thd.

32.522.2

47.6

120

32.5 172147

10

50 φ 19.

05-0

.03

0

21.2

4-0

.16

0

-0.0

50

φ 82.

55 77 12

44.5

6.568

25

165.5Fully Extended

Fully Extended

4.76 0+0.03

96

31 7611

4

130

106

95

Pressure Gauge

Connection "F" Thd.

Specifications

Interchangeability in Installation

Comparison of dimensions between "A" series and "AR" series are shown below.

Note: Dimensions with star mark are identical to each other.

Interchangeability in Installation between "A" Series and "AR" Series

15.8 cm

65

22.2

47.6 18

7

109

62

59 6.5

44.5219

Fully Extended

26.5

25

12

172

96

φ 19.

05-0

.03

0

21.2

4-0

.16

0

-0.0

50

12

φ 82.

55

106

130

188

R12

18

φ95

4.76 0+0.03

Filling Port

Drain Port "D" Thd.Pressure Adj. ScrewFlow Adj. Screw

Suction Port 19 Dia.

"E" Thd. 17 Deep 8 Places

Discharge Port 19 Dia.

100.5195.5Fully Extended

Page 15: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

A37

01A61A

A1637A56

21 (3050)

16 (2320)

21 (3050)

28 (4060)

16 (2320)

28 (4060)

28 (4060)

M

O

MO

MO

MO

30

115

113

"A" Series Variable Displacement Piston Pumps

GraphicSymbols

Page

MaximumOperatingPressure

MPa (PSI)

Pump Type

Single Pumps

Double Pumps

Variable / FixedDouble Pumps

Geometric Displacement

A10

A16

A22

A37

A56

A70

A90

A145

A220

A16 A37 A56

A16 A37 A56 A145A70

A90

A220

PV2R1 PV2R2

A16 A37 A56 A145A70

A90

A220

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

The maximum operating pressure for each double pump depends on its combination of pumps. Contact us for details. Various control types are available such as pressure compensator type. Refer to page 31 and 32.

" " Series Variable Displacement Piston Pumps

1 2 5 10 20 50 100 200 3003 cm /rev

cu. in./rev.1 .2 .5 1 2 5 10 15

27

Page 16: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston Pumps28

Hydraulic Fluids

Hydraulic Fluids Control of ContaminationUse petroleum based oils such as anti-wear type hydraulic oils or R & O (Rust and Oxidation inhibitor) type hydraulic oils equivalent to ISO VG-32 or 46. The recommended viscosity range is from 20 to 400 mm2/s (98 to 1800 SSU) and temperature range is from 0 to 60°C (32 to 140°F), both of which have to be satisfied for the use of the above hydraulic oils.

Due caution must be paid to maintaining control over contamination of the operating oil which can otherwise lead to breakdowns and shorten the life of the unit.Please maintain the degree of contamination within NAS Grade 10.The suction port must be equipped with at least a 100 µm (150 mesh) reservoir type filter and the return line must have a line type filter of under 10 µm.

Instructions

Mounting Drain PipingWhen installing the pump the filling port should be positioned upwards.

Alignment of ShaftEmploy a flexible coupling whenever possible, and avoid any stress from bending or thrust.Maximum permissible misalignment is less than 0.1 mm (.004 inches) TIR and maximum permissible misangular is less than 0.2°.

Suction PressurePermissible suction pressure at inlet port of the pump is between -16.7 and +50 kPa (5 in.Hg Vacuum and 7 PSIG).For piping to the suction port, use the pipes of the same diametre as that of the specified pipe flange to be used. Make sure that the height of the pump suction port is within one metre (3.3 ft) from the oil level in the reservoir.

Hints on PipingWhen using steel pipes for the suction or discharge ports, excessive load from the piping to the pump generates excessive noise.Whenever there is fear of excessive load, please use rubber hoses.

Suction PipingIn case the pump is installed above the oil level, the suction piping and suction line filter should be located lower than the pump position to prevent air in the suction line.

Install drain piping according to the chart and ensure that pressure within the pump housing should be maintained at a normal pressure of less than 0.1 MPa (14.5 PSI) and surge pressure of less than 0.5 MPa (72.5 PSI).Length of piping should be less than 1 m (3.3 ft.), and the pipe end should be submerged in oil.

Bleeding AirIt may be necessary to bleed air from pump case and outlet line to remove causes of vibration. An air bleed valve (Model Number ST1004-*-10*, Page 820) is recommended for this purpose.

[Recommended Drain Piping Size]

ModelFitting Size

N.AmericanDesign Std.

Japnese Std. "JIS" &European Design Std.

SAE #63/8

Inside Dia.of Pipe

A10[Inside Dia. 8.5 mm (.33 in.) or more] 10 mm

(.39 in.)SAE #83/8A16, A22

[Inside Dia. 8.5 mm (.33 in.) or more]

SAE #101/2A37

[Inside Dia. 10 mm (.47 in.) or more] 12 mm(.47 in.)

SAE #123/4A56, A70A90, A145 [Inside Dia. 16 mm (.63 in.) or more]

19 mm(.75 in.)

When using steel pipes for the suction or discharge ports, excessive load from the piping to the pump generates excessive noise.Whenever there is fear of excessive load, please use rubber hoses.

Page 17: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

29

PISTON PUMPS

"A" Series Variable Displacement Piston Pumps

"A"

Ser

ies

AStartingBefore first staring, fill pump case with clean operating oil via the filling port.In order to avoid air blockage when first starting, adjust the control valves so that the discharged oil from the pump is returned direct to the reservoir or the actuator moves in a free load.

Setting Discharge Pressure and DeliveryAt the time of shipment, the unit has been preset to maximum delivery and minimum discharge pressure.Adjust the preset delivery and pressure to meet your system requirements.

Turning the adjustment screw clockwise, increases pressure.

Model NumbersAdjustment Volume

MPa (PSI)

2.9 (420)

5.4 (780)

3.5 (510)

6.5 (940)

7.9 (1150)

2.3 (330)

3.2 (460)

4.0 (580)

4.7 (680)

A10-FR01B

A10-FR01C/H

A16/A22/A37/A56-*-R-01-B

A16/A22/A37/A56-*-R-01-C

A16/A37/A56-*-R-01-H

A70/A90/A145-*-R01B

A70/A90/A145-*-R01C

A70/A90/A145-*-R01H

A70/A90/A145-*-R01K

Adjustment of Discharge Pressure

Volume adjusted by each full turn of the pressure adjustment screw

Model

A10

A16/A22

A37/A56

A70

A90

A145

370 (22.6)

600 (36.6)

1200 (73.2)

2100 (128)

2500 (153)

3300 (201)

3 Volume cm

[Volume of Pre-fill Oil Required]

Turning the flow adjustment screw clockwise, decreases delivery.

Model Numbers

1.1 (.067)

1.4 (.085)

2.0 (.122)

2.9 (.177)

3.9 (.238)

4.4 (.268)

4.8 (.293)

7.2 (.439)

A10

A16

A22

A37

A56

A70

A90

A145

Adjustable volume with each full turn of the adjustment

screw 3 cm /rev (cu.in./rev)

Minimum adjustment flow 3 cm /rev (cu.in./rev)

2.0 (.122)

4.0 (.244)

6.0 (.366)

10 (.610)

12 (.732)

30 (1.83)

56 (3.42)

83 (5.06)

Adjustment of Delivery

The minimum adjustable flow and adjustable volume ofeach full turn of the delivery adjustment screw

(cu.in.)

Page 18: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston Pumps30

"A" Series Variable Displacement Piston Pumps

OUT

IN

Control Piston

Drain Port

Pivot

Shaft

Yoke

Swash Plate

Slipper Retainer

Spring, Yoke ReturnPiston Ass'y

Cylinder Block

Port Plate

Flow Adj. Screw

Pressure Adj. Screw

Spool

0 4 8 12 16 MPa

0 500 1000 PSI20001500 2500

2021

3000

80

70

60

dB(A)

50

40

N=1500 r/min

Full Cut-off

Noi

se L

evel

Out

put F

low

Inpu

t Pow

er

Eff

icie

ncy

100

80

60

kWHP12

9

6

3

%

0

16

12

8

4

00 4 8 12 16 MPa

0 500 1000 PSI20001500 2500

Pressure

2021

3000

28

8

0

206

4

5

7

L /minU.S.GPM32

8

3

2

1

0

4

12

16

24

N=1800 r/min

Volumetric Efficiency

Overall Efficiency

Input Power

Output Flow

Pressure

High efficiency Low noise level

Features

Accomplishment of energy-saving Low heat generation

"A16" type performance characteristics

"A16" type noise level characteristics

Under the conditions of pressure 16 MPa (2320 PSI) and speed 1800 r/min, the volumetric efficiency is over 98% and the overall efficiency is over 90%.

In the "A16" pump, the noise level is as low as 57.3 dB(A) [at the full cut-off pressure 21 MPa (3050 PSI) with speed 1500 r/min one metre (3.3 ft.) horizontally away from pump head cover.]

Because the overall efficiency is high and the cut-off characteristics is sharp, thus the input power may be saved.

Because of small power loss, it is possible to reduce the rise in oil temperature. Accordingly, capacity of a reservoir can be reduced.

Page 19: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

31

PISTON PUMPS

"A" Series Variable Displacement Piston Pumps

"A"

Ser

ies

A

Control Type Graphic Symbols Performance Characteristics Explanation Page

Pressure Compensator

Type"01"

Solenoid-two Pressure Control

Type

"02"

Pressure Compensator

with Unloading

Type

"03"

Electro- Hydraulic

Load Sensing

Type

"04"

"04E"

Two-Pressure Two-Flow

Control Type by Solenoid

Valve

"06"

Electro- Hydraulic

Pressure & Flow

Control Type

"04EH"

Electro- Hydraulic

Pressure & Flow

Control Type

(OBE Type)

When the system pressure increases and comes close to the preset cut-off pressure, the pump flow decreasesautomatically while maintaining the set pressure as it is.

This type of control is ideal for an application where theoutput power of the actuator has to be controlled in twodifferent load pressures while keeping the actuator speed nearly constant.

It is suitable for a situation where a long unloading time is required and heat generation and noise have to be kept at their lowest levels.

This pump control is suitable for machining found onmachine tool, where machining starts after the changeover from rapid advance, to feed has been made.

The pump can be used in combination with the multistage pressure control valve.

Linearity of input characteristics is excellent and easy to set.Hysteresis is lower, repeatability and reproducibilityare fine.

33

55

63

64

74

86

PL PH

MO

MO

MO

MO

2i1i

PL

PH

MO

QH

QL

PL PH

SOL"OFF"

SOL"ON"

Pressure

Out

put F

low

Pressure

Out

put F

low

(SIn

put V

olta

geL

)

(S Input Voltage L)

Pressure

Out

put F

low

(SIn

put C

urre

nt i

L)

(S Input Current i L)1

2

SOL "OFF"

SOL "ON"

Out

put F

low

PL PH

SOL "OFF"

SOL "ON"

Pressure

Out

put F

low

Pressure

Out

put F

low

Pressure

Control Type

Two-Pressure Two-Flow

Control Type by System

Pres.

"05"PL

PH

MO

PL PH

QH

QL

Pressure

Out

put F

low

M

O

Proportional

Proportional

Proportional

This is an energy-saving type control which regulates the pump flow and load pressure to be at absolute minimum necessary level to operate the actuator. Pump flow rate and cut-off pressure are controlled proportional to the input current to the control device on the pump and the input current is regurated by the specific amplifier.

This type of control has the pressure sensor and tilt angle sensor in the pump. The pump is used with the external amplifier (amplifier is integrated into pump in case of "04EH").Flow and pressure can be controlled in proportion to input voltage by only one control valve.The features has been greatly improved by electrical feedback of swash plate tilt angle correspond to flow rate and load pressure to control valve.

This type of control is suitable for an application like "Presses" where the changeover from rapid advance to feed is required just when the pressing (pressurizing) starts.

Page 20: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston Pumps32

Control Type Graphic Symbols Performance Characteristics Explanation Page

96

Pilot Pressure Control Type

Pressure Compensator

"07"

Constant Power

Control Type "09"

The pump is used in combination with the pilot relief valve or multistage pressure control valve. By controlling the pilot pressure, the full cut-off pressure can be remote-controlled according to your requirements.

Pump input power can be controlled in accordance with the motor output.

When the discharge pressure rise, the output flow decreases corresponding to the preset input power.

Model Numbers

Geometric Displacement 3 cm /rev (cu.in./rev)

Control Type

01 02 03 04 04E 05 06 07 09

A10

A16

A22

A37

A56

A70

A90

A145

10.0 (.610)

15.8 (.964)

22.2 (1.355)

36.9 (2.25)

56.2 (3.43)

70.0 (4.27)

91.0 (5.55)

145 (8.85)

04EH

MO

MO

Pressure

Out

put F

low

Pressure

Out

put F

low

Output Flow

Input Power

Control Type

Mark " " in the table below refers to standard model.Availability of Control Type

105The pump can act for function of two pumps, low-pressure large-flow and high-pressure small-flow. Therefore, the motor capacity can be reduced.

Control type "05" and "06" are not shown in this catalogue. Contact us for the details.

Page 21: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

33

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

"A"

Ser

ies

A

M

O

"A" Series Variable Displacement Piston Pumps – Single Pump,Pressure Compensator Type

1.

2.

1.

*

12

1

*1

*

A16-*-R-01-*-*-K-32*A22-*-R-01-*-*-K-32*A37-*-R-01-*-*-K-32*A56-*-R-01-*-*-K-32*

A10-FR01B-12*A10-FR01C/H-12*

A70-*R01*S-60*A90-*R01*S-60*A145-*R01*S-60*

Geometric Displacement

3 cm /rev (cu. in. /rev)

Minimum Adj. Flow

3 cm /rev (cu. in. /rev) Rated Intermittent Max. Min.

Flange Mtg.

Foot Mtg.

Model Numbers

Operating Presure MPa (PSI)

Shaft Speed Range r/min

Approx. Mass kg (lbs.)

5.1 (11.2)

8.5 (18.7)

16.5 (36.4)

16.5 (36.4)

28.0 (61.7)

35.0 (77.2)

58.5 (129)

72.5 (160)

92.5 (204)

18.7 (41.2)

18.7 (41.2)

32.3 (71.2)

39.3 (86.7)

70.5 (155)

93 (205)

117.5 (259)

600

600

600

600

600

600

600

1800

1800

1800

1800

1800

1800

1800

600180021 (3050)

21 (3050)

16 (2320)

21 (3050)

21 (3050)

28 (4060)

28 (4060)

28 (4060)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

25 (3630)

25 (3630)

25 (3630)

2 (.122)

4 (.244)

6 (.366)

10 (.610)

12 (.732)

30 (1.83)

56 (3.42)

83 (5.06)

10.0 (.610)

15.8 (.964)

22.2 (1.355)

36.9 (2.25)

56.2 (3.43)

70.0 (4.27)

91.0 (5.55)

145 (8.85)

0

1/5 of One Cycle

20 MPa (2900 PSI) 27 MPa (3920PSI)

21 MPa (3050 PSI) 28 MPa (4060 PSI)

Max.

Pre

ssur

e

Out

put

Flo

w

(Max. 6s)

One Cycle Time

Specifications

Graphic Symbol

3.

1.

2.

3.

Applicable only for "A70/90/145"

The table above shows specifications for using petroleum based oils.Pumps (customized design) for special fluids are also available. Their operating pressure and maximum shaft speed however differ from the values in the table above depending on the fluid type.Range of operating temperature and viscosities may differ from those of petroleum based oils due to their characteristics.

The figures in brackets are for A22 type.

As the specific gravities of water-glycol fluids and phosphate ester type fluids are higher than one, an overhead reservoir is required when pumps are operated at 1500 r/min or more.

For the design numbers of pumps for European Design and North American Design Standards, please contact us.

Whenever setting pressure, make sure the full cut-off pressure never exceeds the maximum intermittent pressure.

Care should be taken in cases of used at a higher pressure than the rated pressure, because operating terms may be restricted. For example, if used as per maximum illustrated operating conditions, intermittent time at maximum flow is restricted to under 1/5 of one cycle time and under six seconds simultaneously. Conditions may vary according to the actual working pressure and delivery (inclination angle of the swash plate). Consult factory or Yuken sales representative for further information.

Specifications and Design numbers for Special Fluids

PhosphateEster Type

PolyolEster Type

Water-Glycols

PumpSeries

Operating PressureMPa (PSI)

AllowableMaximum

Shaft Speedr/min

Rated

Typeof

Fluids

TemperatureRange

°C (°F)

ViscosityRange

mm2/s (SSU)

Design Numbers forSpecial Fluid

(Occasion of JapaneseStd. “JIS”)

3230

6030

3206

6006

32450

6045020 - 200(98 - 927)

20 - 200(98 - 927)

0 - 50 (32 - 104)

0 - 60 (32 - 140)

0 - 60 (32 - 140)

14(2030)

21(3050)

14(2030)

21(3050)

16(2320)

21(3050)

Rated

1200

1200

1800

Max.

(1800)

(1800)

1800

Intermittent

16(2320)14(2030)

21(3050)

16(2320)14(2030)

21(3050)

16(2320)

21(3050)

A16 – A56

A70 – A145

A16 – A56

A70 – A145

A16 – A56

A70 – A145

3

1

1

2

2

Page 22: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type34

2.

1. 3.

1

1

3 4

2

2

Series Number

A163 (15.8 cm /rev)

A223 (22.2 cm /rev)

A373 (36.9 cm /rev)

A563 (56.2 cm /rev)

Mounting

F: Flange Mtg.

L: Foot Mtg.

Direction of Rotation

Viewed from Shaft End

R: Clockwise(Normal)

Pres. Adj. Range MPa (PSI)

Control Type

Port Position

Shaft Extension

Design Std.

Refer to

Design Number

32

32

32

32

K:Keyed Shaft

None:Axial Port

S:Side Port

01: Pressure Compensator Type

B: C: H:

1.2 - 7 (170 - 1020) 1.2 - 16 (170 - 2320) 1.2 - 21 (170 - 3050)

B: C:

1.2 - 7 (170 - 1020) 1.2 - 16 (170 - 2320)

B: C: H:

1.2 - 7 (170 - 1020) 1.2 - 16 (170 - 2320) 1.2 - 21 (170 - 3050)

*-32-K-S-B-01-R-FA16

Series Number

A103 (10.0 cm /rev)

A703 (70.0 cm /rev)

A903 (91.0 cm /rev)

A1453 (145 cm /rev)

Mounting

F: Flange Mtg.

L: Foot Mtg.

Direction of Rotation

Viewed from Shaft End

R: Clockwise(Normal)

Pres. Adj. Range MPa (PSI)

Control Type

Port Position

Design Std.

Refer to

Design Number

12

60

60

60

S: Side Port

01: Pressure Compensator Type

B: C: H:

1.2 - 7 (170 - 1020) 2.0 - 16 (290 - 2320) 2.0 - 21 (290 - 3050)

B: C: H: K:

1.2 - 7 (170 - 1020) 1.5 - 16 (220 - 2320) 1.8 - 21 (260 - 3050) 2.0 - 28 (290 - 4060)

*-60SB01R-FA70

F: Flange Mtg.

Mtg. Bracket Kit Numbers

Approx. Mass kg (lbs.)

LP-1A-10 2.2 (4.9)

Pump Model Numbers

Name of Port

Japanese Std. "JIS"

European Design Std.

N. American Design Std.

Japanese Std. "JIS"

European Design Std.

N. American Design Std.

European Design Std.

N. American Design Std.

Japanese Std. "JIS"

Threaded Connection Socket Welding Butt Welding

Pipe Flange Kit Numbers

Suction

Discharge

Suction

Discharge

Suction

Discharge

Suction

Discharge

F5-06-A-10

F5-06-A-10

F5-10-A-10

F5-10-A-10

F5-12-A-10

F5-08-A-10

F5-16-A-10

F5-10-A-10

F5-06-A-1080

F5-06-A-1080

F5-10-A-1080

F5-10-A-1080

F5-12-A-1080

F5-08-A-1080

F5-16-A-1080

F5-10-A-1080

F5-06-B-10

F5-06-B-10

F5-10-B-10

F5-10-B-10

F5-12-B-10

F5-08-B-10

F5-16-B-10

F5-10-B-10

F5-06-B-1090

F5-06-B-1090

F5-10-B-1090

F5-10-B-1090

F5-12-B-1090

F5-08-B-1090

F5-16-B-1090

F5-10-B-1090

F5-06-C-10

F5-06-C-10

F5-10-C-10

F5-10-C-10

F5-12-C-10

F5-08-C-10

F5-16-C-10

F5-10-C-10

F5-06-C-1090

F5-06-C-1090

F5-10-C-1090

F5-10-C-1090

F5-12-C-1090

F5-08-C-1090

F5-16-C-1090

F5-10-C-1090

A16-*-R-01 A22-*-R-01

A37-*-R-01 A56-*-R-01

A70-*R01

A90-*R01 A145-*R01

Design Standards: None 80 950

Japanese Standard "JIS" European Design Standard N. American Design Standard

........... ............... .............

Available to supply pump with anti-clockwise rotation. Consult Yuken for details.

Model Number Designation

Pipe Flange KitsPipe flange kits are available. When ordering, specify the kit number from the table below.

Details of the pipe flange kits are shown on page 824.

When A10 pump is used as the foot Mtg., order the Mtg. Bracket kit shown below separately. Refer to page 24 for dimensions of the Mtg. bracket.

4. The pressure adjustment range "B" is not available to the European Design Standard and the N. American Design Standard of "A10".

1

22 2

1. In case of using socket welding flanges, there is a case where the operating pressure should be set lower than the normal because of strength of the flanges. Therefore, please pay cautious attention to the operating pressure when the socket welding flanges are used.

2. As dimensions of the pipe flange mounting surface are conformed to SAE 4 Bolt Split Flange (Standard Pressure Series), pipe flanges conforming to the SAE Standards can be used.

Note: The mounting bracket kit consists of a mounting bracket, two hex. bolts and two plain washer.

Page 23: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

35

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

"A"

Ser

ies

AResponse Characteristics Change in Accordance with Circuits and Operating Conditions.

*

Model

A10

A16 A22

A37 A56

A90 A145

A70

Ruber Hose Size

3/4" 3500 mm (11.5 ft.)

3/4" 3000 mm (9.8 ft.) +

1-1/4" 2000 mm (6.6 ft.)

3/4" 2000 mm (6.6 ft.)

3/4" 700 mm (2.3 ft.)

1/2" 800 mm (2.6 ft.)

Full Cut-off Pressure

P MPa (PSI)

Model1

t 1

Response Time ms

Overshoot Pressure P

MPa (PSI)

A10

A16

A22

A37

A56

A70

A90

A145

t 2

S

21 (3050)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

25 (3630)

25 (3630)

25 (3630)

100

38*

30*

40*

38*

80

90

100

75

59*

72*

78*

88*

100

110

150

2.6 (380)

3.6 (520)

5.9 (860)

7.8 (1130)

7.6 (1100)

7.8 (1130)

7.9 (1150)

8.8 (1280)

M

SOL

M O

SOLOFF ON OFF

P S

t 1 t 2

P 2 P 2

P 12 MPa(290PSI) [3 MPa(440PSI)]

2 MPa(290PSI) [3 MPa(440PSI)]

Test Circuit and Conditions

Circuit ConditionsDrive Speed :Hydraulic Fluid :Oil Temperature :

Time

Pre

ssur

e

Result of Measurement

Applicable only for "A90/A145"

Response time except A10, A70, A90 and A145 is measured Yoke travel.

High Pressure Rubber Hose

1500 r/minISO VG32 oil

2 A10-A56: 50 °C (122 °F) [Viscosity 20 mm /s (100 SSU)]2 A70-A145: 40 °C (104 °F) [Viscosity 32 mm /s (150 SSU)]

Page 24: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type36

204 8 12 16

100

00

80

60

40 10

15

20

5

0 500 1000 1500 2000 2500 30003050

1

2

3

4

5

0

4

8

02

4

68

kWHP

Inpu

t Pow

er

Eff

icie

ncy

%

L /min

Out

put F

low

U.S.GPM

MPa21

PSIPressure

Input Power

Output Flow

Overall Efficiency

Volumetric Efficiency

0

MPa

PSIPressure

500 1000 1500 2000 2500 30003050

204 8 12 160 210

4

8

02

4

68

kWHP

Inpu

t Pow

er

100

80

60

40

Eff

icie

ncy

%N=1500 r/min N=1800 r/min

1

2

3

4

5

Out

put F

low

U.S.GPM

0

10

15

20

5

L /min

Input Power

Output Flow

Overall Efficiency

Volumetric Efficiency

0

1

2

3

4

5

6

7

8

0

2

4

6

8

10

Inpu

t Pow

er

kWHP N=1500 r/min

P= (2900)20P= (2610)18P= (2320)16P= (2030)14P= (1740)12P= (1450)10P= (1160)8P= (870)6P= (580)4P= (290)2

P=MPa (PSI)

0 5 10 15 20 L /min

U.S.GPM0 1 2 3 4 5Output Flow

0 5 10 15 20 L /min

U.S.GPM0 1 2 3 4 5Output Flow

0

1

2

3

4

5

6

7

8

0

10In

put P

ower

kWHP

2

4

6

8

N=1800 r/min

1800 r/min

1500 r/min

A10-FR01H

A10-FR01C

A10-FR01B

0 4 8 12 16

PSIFull Cut-off Pressure

20 MPa

0 500 1000 1500 2000 2500 30003050

00

.2

Ful

l Cut

-off

Pow

er

kWHP

0.2

0.4

0.6

0.8

1.0

.4

.6

.8

1.0

1.2

1.4

1500,1800 r/min

1500 r/min

A10-FR01H

A10-FR01C

A10-FR01B

0 4 8 12 16

PSIPressure

20 MPa

0 500 1000 1500 2000 2500 30003050

00

20

Dra

in

L /min3 in ./min

0.5

1.0

1.5

40

60

80

0 4 8 12 16

PSIPressure

20 MPa

30003050

5000 1000 2000 2500

Full Cut-off

Full Flow

40

Noi

se L

evel

dB (A)

50

60

70N=1500 r/min

0 4 8 12 16

PSIPressure

20 MPa

0 30003050

500 1000 1500 2000 2500

Full Flow

Full Cut-off

40

Noi

se L

evel

dB (A)

50

60

70N=1800 r/min

21 21

21 21

Performance Characteristic Curve

Input Power

Full Cut-off Power Drain

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover]

P=MPa (PSI)

P= (2900)20P= (2610)18P= (2320)16P= (2030)14P= (1740)12P= (1450)10P= (1160)8P= (870)6P= (580)4P= (290)2

1800 r/min

1500

Typical Performance Characteristics of Type "A10" at Viscosity 20 mm2/s (100 SSU) [ISO VG32 Oils, 50°C (122°F)]

Full Cut-off

Full Flow

Page 25: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

37

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

"A"

Ser

ies

A

0 4 8 12 16 2021

MPa

0 500 1000 1500 2000 2500 3050 PSIPressure

Input Power

Output Flow

Volumetric Efficiency

Overall Efficiency

0

3

6

9

0

4

8

12kWHP

Inpu

t Pow

er

Eff

icie

ncy

60

80

100% N=1500 r/min

Out

put F

low

00123

456

7

4

8

12

16

20

24

U.S.GPML /min

N=1800 r/min

0 4 8 12 16 2021

MPa

0 500 1000 1500 2000 2500 3050 PSIPressure

Out

put F

low

04

8

12

16

20

24

U.S.GPML /min

28

32

0

1

2

3

4

5

67

8

Eff

icie

ncy

60

80

100%

Input Power

Output Flow

Overall Efficiency

Volumetric Efficiency

Inpu

t Pow

er

0

3

6

9

12

0

4

8

12

HP16

kW

P=MPa(PSI)P=P=P=P=P=P=P=P=P=P=P=

201816141210

8642

0.7

(2900)(2610)(2320)(2030)(1740)(1450)(1160)(870)(580)(290)(100)

16kWHP12

10

8

6

4

2

0

12

8

4

0

Inpu

t Pow

er

0 5 10 15 20 25 30

U.S.GPM

L /min

0 1 2 3 4 5 6 7 8Output Flow

16kWHP12

10

8

6

4

2

0

12

8

4

0

Inpu

t Pow

er

0

U.S.GPM

L /min

0

5 10 15 20 25 30

1 2 3 4 5 6 7 8

N=1500 r/min N=1800 r/minP=MPa(PSI)P=P=P=P=P=P=P=P=P=P=P=

201816141210

8642

0.7

(2900)(2610)(2320)(2030)(1740)(1450)(1160)

(870)(580)(290)(100)

Output Flow

A16-*-R-01-H

1800 r/min

A16-*-R-01-CN=1500 r/min

A16-*-R-01-B

0 4 8 12 16 2021

Full Cut-off Pressure0 500 1000 1500 2000 2500 3050

MPa

PSI

2.0kWHP1.5

Full

Cut

-off

Pow

er

1.0

0.5

0

1.5

1.0

.5

0

1800 r/min

Full Cut-offFull Flow A16-*-R-01-H

A16-*-R-01-C

A16-*-R-01-B1500,1800 r/min

N=1500 r/min

021

Pressure0

MPa

PSI

4 8 12 16 20

500 1000 1500 2000 2500 3050

3

Dra

in

2

1

0

L /min

150

100

50

0

3 in. /min

Full Flow

Full Cut-off

021

0

MPa

PSI

4 8 12 16 20

500 1000 1500 2000 2500 3050Pressure

Noi

se L

evel

80

70

60

50

40

dB(A) N=1500 r/min

021

0

MPa

PSI

4 8 12 16 20

500 1000 1500 2000 2500 3050Pressure

Noi

se L

evel

80

70

60

50

40

dB(A) N=1800 r/min

Full Flow

Full Cut-off

Performance Characteristic Curve

Input Power

Full Cut-off Power Drain

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover]

Typical Performance Characteristics of Type "A16" at Viscosity 20 mm2/s (100 SSU) [ISO VG32 Oils, 50°C (122°F)]

Example: At a pressure of under 10 MPa (1450 PSI), a flow 20 L/min (5.3 U.S.GPM), and rotation 1500 r/min, the axial input becomes about 3.7 kW (5 HP) as shown the dotted line in the graph.

Page 26: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type38

0 4 8 12 16 MPa

0 2000 2320 PSIPressure

Eff

icie

ncy % N=1500 r/min

Out

put F

low

0

40

U.S.GPM

L /min

N=1500 r/min

Pressure

N=1500 r/min

Input Power

Output Flow

Overall Efficiency

Volumetric Efficiency

Inpu

t Pow

er

0

HP kW60

80

100

0

4

8

12

16

2468

1012

500 1000 1500

30

20

10

0

2

4

6

8

10

12

Input Power

Overall Efficiency

Output Flow

Volumetric EfficiencyN=1800 r/min

Eff

icie

ncy %

Inpu

t Pow

er

0

HP kW60

80

100

0

4

8

12

16

2468

1012

0 4 8 12 16 MPa

0 2000 2320 PSI500 1000 1500

Out

put F

low

0

40

U.S.GPM

L /min

30

20

10

0

2

4

6

8

10

12

0 10 20 30

U.S.GPM

L /min

0 12Output Flow

2 4 6 8 10 13

14 kWHP

10

8

6

4

2

0

10

6

2

0

Inpu

t Pow

er

40 50

12

8

4

Pressure

14HP

10

6

2

0

Inpu

t Pow

er

12

8

4

kW10

8

6

4

2

0

N=1800 r/min

0 10 20 30 L /min40 50

U.S.GPM0 12Output Flow

2 4 6 8 10 13

P=MPa(PSI)

P=

P=

P=

P=

P=

P=

P=

P=

A22-*-R-01-C

1800 r/min

N=1500 r/min

A22-*-R-01-B

2.0kWHP1.5

Full

Cut

-off

Pow

er

1.0

0.5

0

1.5

1.0

.5

00 4 8 12 MPa16

Full Cut-off Pressure0 500 1000 1500 2000 PSI

2320

1800 r/min

Full Cut-off

A22-*-R-01-C

A22-*-R-01-B

Full Flow

N=1500 r/min

1500,1800 r/min

0 500 1000 1500 2000 PSI2320

0 4 8 12 MPa16

3

Dra

in

2

1

0

L /min

150

100

50

0

3 in. /min

Full Flow

Full Cut-off

Noi

se L

evel

80

70

60

50

dB(A)

MPa12 14106 820

0 500 1000 1500 2030Pressure

PSI

Full Cut-off

0 500 1000 1500 2030Pressure

PSI

Full Flow

Noi

se L

evel

80

70

60

50

dB(A)

0 MPa

N=1800 r/min

4 8 12 141062

Performance Characteristic Curve

Full Cut-off Power Drain

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover]

Typical Performance Characteristics of Type "A22" at Viscosity 20 mm2/s (100 SSU) [ISO VG32 Oils, 50°C (122°F)]

Input PowerExample: At a pressure of under 10 MPa (1450 PSI), a flow 30 L/min (7.9 U.S.GPM), and rotation 1500 r/min, the axial input becomes

about 5.4 kW (7.2 HP) as shown the dotted line in the graph.

P=

P=

P=

P=

P=

P=

P=

P=

14

12

10

8

6

4

2

1

(2030)

(1740)

(1450)

(1160)

(870)

(580)

(290)

(145)

P=MPa(PSI)

4

1 (145)

2 (290)

6

4

(870)

(580)

8 (1160)

10 (1450)

12 (1740)

14 (2030)

Page 27: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

39

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

"A"

Ser

ies

A

3

Dra

in

2

1

0

L /min

150

120

30

0

3 in. /min

N=1500 r/min

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Eff

icie

ncy

60

80

100%

Inpu

t Pow

er

0

10

20

30

0

10

20

40HP kW

30

0 4 8 12 16 2021

MPa

0 500 1000 1500 2000 2500 3050 PSIPressure

0

20

L /min

40

60

Out

put F

low

U.S.GPM

0

4

8

12

16

N=1500 r/min

Volumetric Efficiency

Overall Efficiency

Output Flow

Input Power

N=1800 r/min

Eff

icie

ncy

60

80

100%

Inpu

t Pow

er

0

10

20

30

0

10

20

40HP kW

30

0 4 8 12 16 2021

MPa

0 500 1000 1500 2000 2500 3050 PSIPressure

Out

put F

low

0

4

8

12

16

20U.S.GPM

0

20

L /min

40

60

80

N=1500 r/minP=MPa(PSI)P=P=P=P=P=P=P=P=P=P=P=

201816141210

86421

(2900)(2610)(2320)(2030)(1740)(1450)(1160)

(870)(580)(290)(150)

35 kWHP

25

20

15

10

5

0

25

15

5

0

Inpu

t Pow

er

10

20

30

0 L /min10 30 40 50 60 7020

U.S.GPM0 182 6 8 10 12 14 16Output Flow

4

N=1800 r/minP=MPa(PSI)P=P=P=P=P=P=P=P=P=P=P=

201816141210

86421

(2900)(2610)(2320)(2030)(1740)(1450)(1160)

(870)(580)(290)(150)

35 kWHP

25

20

15

10

5

0

25

15

5

0

Inpu

t Pow

er

10

20

30

0 L /min10 30 40 50 60 7020

U.S.GPM0 182 6 8 10 12 14 16Output Flow

4

A37-*-R-01-H4

kWHP3

Full

Cut

-off

Pow

er

2

1

0

3

2

1

0

A37-*-R-01-C

A37-*-R-01-B

N=1500 r/min

N=1800 r/min

0 4 8 12 16 2021

Full Cut-off Pressure0 3050

MPa

PSI500 1000 1500 2000 2500

0 4 8 12 16 2021

0 3050

MPa

PSI500 1000 1500 2000 2500

A37-*-R-01-C

A37-*-R-01-B

Full Flow

Full Cut-offN=1800 r/min

N=1500 r/minA37-*-R-01-H

1500,1800 r/min

60

90

180

021

0

MPa

PSI

4 8 12 16 20

3050Pressure

500 1000 1500 2000 2500

Full Flow

Full Cut-offNoi

se L

evel

80

70

60

50

40

dB(A)

Full Flow

Full Cut-off

N=1800 r/min

Pressure

Noi

se L

evel

80

70

60

50

40

dB(A)

021

0

MPa

PSI

4 8 12 16 20

3050Pressure

500 1000 1500 2000 2500

Performance Characteristic Curve

Input Power

Full Cut-off Power Drain

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover]

Example: At a pressure of under 16 MPa (2320 PSI), a flow 45 L/min (11.9 U.S.GPM), and rotation 1500 r/min, the axial input becomes about 12.6 kW (16.9 HP) as shown the dotted line in the graph.

Typical Performance Characteristics of Type "A37" at Viscosity 20 mm2/s (100 SSU) [ISO VG32 Oils, 50°C (122°F)]

Page 28: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type40

Performance Characteristic Curve

Example: At a pressure of under 16 MPa (2320 PSI), a flow 70 L/min (18.5 U.S.GPM), and rotation 1500 r/min, the axial input becomes about 20.8 kW (27.9 HP) as shown the dotted line in the graph.

Typical Performance Characteristics of Type "A56" at Viscosity 20 mm2/s (100 SSU) [ISO VG32 Oils, 50°C (122°F)]

N=1500 r/min

Full Cut-off Pressure

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Eff

icie

ncy

%

Inpu

t Pow

er

0

HPkW

60

80

100

0

20

40

20

40

60

0 4 8 12 16 2021

MPa

0 500 1000 1500 2000 2500 3050 PSIPressure

020

L /min

40

60

Out

put F

low

U.S.GPM

0

80

100

5

10

15

20

25

N=1800 r/minVolumetric Efficiency

Overall Efficiency

Output Flow

Input Power

Eff

icie

ncy

%

Inpu

t Pow

er

0

HPkW

60

80

100

0

20

40

20

40

60

020

L /min

40

60

Out

put F

low

U.S.GPM

0

80

100

5

10

15

20

25

12030

0 4 8 12 16 2021

MPa

0 3050 PSIPressure

500 1000 1500 2000 2500

Inpu

t Pow

er

HPkW

05

10

15

20

25

30

35

40

0

40

50

30

20

10

N=1500 r/min

0 20 40 60 L /min80 120

U.S.GPMOutput Flow

100

0 305 10 15 20 25

P=MPa(PSI)

P=P=

P=

P=

P=

P=

P=

P=

P=

P=

2018

16

14

12

10

8

6

4

2

(2900)(2610)

(2320)

(2030)

(1740)

(1450)

(1160)

(870)

(580)

(290)

N=1800 r/min

P=MPa(PSI)

P=P=P=P=P=P=P=P=P=P=

201816141210

8642

(2900)(2610)(2320)(2030)(1740)(1450)(1160)

(870)(580)(290)

Inpu

t Pow

erHP

kW

05

10

15

20

25

30

35

40

0

50

10

20

30

40

0 20 40 60 L /min80 120

U.S.GPMOutput Flow

100

0 305 10 15 20 25

N=1500 r/min

N=1800 r/min

4

5

3

2

1

kWHP 4

Full

Cut

-off

Pow

er 3

2

1

00

0 4 8 12 MPa16

0 500 1000 1500 2000 PSI

2021

2500 3050

4

Dra

in 2

1

0

L /min

200

100

50

0

3 in. /min

150

3

0 4 8 12 MPa16

0 500 1000 1500 2000 PSI

2021

2500 3050

Full Flow

Full Cut-off

1500,1800 r/min

N=1800 r/min

N=1500 r/min

A56-*-R-01-C

A56-*-R-01-H

A56-*-R-01-B

Pressure

0 4 8 12 MPa16

0 500 1000 1500 2000 PSI

2021

2500 3050

Pressure

Full Flow

Full Cut-off

N=1500 r/min

Noi

se L

evel

80

70

60

50

dB(A) N=1800 r/min

Full Flow

Full Cut-off

0 4 8 12 MPa16

0 500 1000 1500 2000 PSI

2021

2500 3050

Pressure

Noi

se L

evel

80

70

60

50

dB(A)

Input Power

Full Cut-off Power Drain

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover]

Page 29: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

41

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

"A"

Ser

ies

A

Dra

in

N=1500 r/min

N=1500 r/min

60

80

100%

Inpu

t Pow

er

0

20

40

60

0

20

40

80HP kW

60

Volumetric Efficiency

Overall Efficiency

Output Flow

Input Power

L /min120

100

80

30U.S.GPM

Out

put F

low

25

20

0 MPa5 10 15 20 25

0 1000 2000 30003500 PSIPressure 3630

0 MPa5 10 15 20 25

0 1000 2000 30003500 PSIPressure 3630

L /min

120

100

140

30

U.S.GPM

Out

put F

low

25

35

Inpu

t Pow

er

0

20

40

60

0

20

40

80HP kW

60

60

80

100% N=1800 r/min

Volumetric Efficiency

Overall Efficiency

Output Flow

Input Power

kWHP60

50

40

30

0

Inpu

t Pow

er

20

10

80

0

60

40

20

0 L /min20 60 80 100 120 14040

U.S.GPM0 35Output Flow

20 3010

N=1500 r/min kWHP60

50

40

30

0

Inpu

t Pow

er

20

10

80

0

60

40

20

N=1800 r/min

0 L /min20 60 80 100 120 14040

U.S.GPM0 35Output Flow

20 3010

1800 r/min

1500 r/min

Full

Cut

-off

Pow

er

0

HP kW

2

4

6

8

10

0

1

2

3

4

5

6

7

0 5 10 15 20 25

03630

MPa

PSI1000 2000 3500

Full Cut-off Pressure

1500,1800 r/min

Full Cut-off

Full Flow1500,1800 r/min

0

100

200

300

0

1

2

3

4

5

6

7L /min3 in. /min

400

0 5 10 15 20 25

03630

MPa

PSI1000 2000 3500

Pressure30003000

Full Flow

Full Cut-offNoi

se L

evel

80

70

60

50

dB(A)

0 5 10 15 20 25

03630

MPa

PSI1000 2000 35003000Pressure

Full Flow

Full Cut-off

N=1800 r/min

Noi

se L

evel

80

70

60

50

dB(A)

0 5 10 15 20 25

03630

MPa

PSI1000 2000 35003000Pressure

Eff

icie

ncy

Eff

icie

ncy

P=MPa(PSI)

P=P=P=P=P=P=P=P=P=P=

201816141210

8642

(2900)(2610)(2320)(2030)(1740)(1450)(1160)(870)(580)(290)

P= 22(3190)P= 24(3480)

P=MPa(PSI)

P=P=P=P=P=P=P=P=P=P=

201816141210

8642

(2900)(2610)(2320)(2030)(1740)(1450)(1160)

(870)(580)(290)

P= 22(3190)P= 24(3480)

Performance Characteristics Curve

Input Power

Full Cut-off Power Drain

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover]

Example: At a pressure of under 20 MPa (2900 PSI), a flow 70 L/min (18.5 U.S.GPM), and rotation 1500 r/min, the axial input becomes about 26 kW (35 HP) as shown the dotted line in the graph.

Typical Performance Characteristics of Type "A70" at Viscosity 32 mm2/s (150 SSU) [ISO VG32 Oils, 40°C (104°F)]

Page 30: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type42

N=1500 r/min

Eff

icie

ncy

N=1800 r/min

N=1500 r/min

%

60

80

100

Volumetric Efficiency

Overall Efficiency

Output Flow

L /min

Out

put F

low

U.S.GPM

34

36140

38

130

120Input Power

Inpu

t Pow

er

HP kW

0

20

40

60

0

40

80

0 MPa5 10 15 20 25

0 3500 PSIPressure 3630

1000 2000 3000

L /min

Out

put F

low

U.S.GPM

40

4216044

150

140

170

N=1800 r/min

Volumetric Efficiency

Overall Efficiency

0 MPa5 10 15 20 25

0 3500 PSIPressure 3630

1000 2000 3000

Eff

icie

ncy

%

60

80

100

Inpu

t Pow

er

HPkW

0

20

40

60

0

40

80

80100

Output Flow

Input Power

0 L /min20 60 80 100 120 14040

U.S.GPM0 35Output Flow

20 30105 15 25

N=1500 r/min

Inpu

t Pow

er

HP

kW

0

10

20

30

70

0

80

20

40

60

60

50

40

0 L /min20 60 80 100 120 14040

U.S.GPM0 35Output Flow

20 30105 15 25

160

40 45

Inpu

t Pow

erHP

kW

0

10

20

30

70

0

80

20

40

60

60

50

40

100

Full

Cut

-off

Pow

er

0

HP kW

2

4

6

8

9

0

1

2

3

4

5

6

7

1800 r/min

1500 r/min

0 5 10 15 20 25 MPa

Full Cut-off Pressure0 3500 PSI

36301000 2000 3000

1800 r/min

1500 r/min 1800 r/min

1500 r/min

Dra

in

0

100

200

300

0

2

4

6

L /min3 in. /min

400

8500

0 5 10 15 20 25 MPa

Pressure0 3500 PSI

36301000 2000 3000

Full Flow

Full Cut-offNoi

se L

evel

80

70

60

50

dB(A)

0 5 10 15 20 25 MPa

Pressure

0 3500 PSI3630

1000 2000 3000

0 5 10 15 20 25 MPa

Pressure

0 3500 PSI3630

1000 2000 3000

N=1800 r/min

Noi

se L

evel

80

70

60

50

dB(A)

Full Flow

Full Cut-off

Full Cut-off

Full Flow

P=MPa(PSI)

P=P=P=P=P=P=P=P=P=P=

201816141210

8642

(2900)(2610)(2320)(2030)(1740)(1450)(1160)(870)(580)(290)

P= 22 (3190)P= 24 (3480)P= 25 (3630)

P=MPa(PSI)

P=P=P=P=P=P=P=P=P=P=

201816141210

8642

(2900)(2610)(2320)(2030)(1740)(1450)(1160)(870)(580)(290)

P= 22 (3190)P= 24 (3480)P= 25 (3630)

Performance Characteristics Curve

Input Power

Full Cut-off Power Drain

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover]

Example: At a pressure of under 18 MPa (2610 PSI), a flow 110 L/min (29.1 U.S.GPM), and rotation 1500 r/min, the axial input becomes about 34 kW (46 HP) as shown the dotted line in the graph.

Typical Performance Characteristics of Type "A90" at Viscosity 32 mm2/s (150 SSU) [ISO VG32 Oils, 40°C (104°F)]

Page 31: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

43

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

"A"

Ser

ies

A

N=1500 r/min

0 MPa5 10 15 20 25

0 3500 PSIPressure 3630

1000 2000 3000

Volumetric Efficiency

L /min

210

200

220

56

U.S.GPM

Out

put F

low

54

58

Inpu

t Pow

er

0

40

80

120

0

40

80

160HP kW

120

60

80

100%

Output Flow

Overall Efficiency

Input Power

N=1800 r/min

Inpu

t Pow

er

0

40

80

120

0

40

80

160HP kW

120

60

80

100%

L /min

260

250

270

68

U.S.GPM

Out

put F

low

66

70

240

0 MPa5 10 15 20 25

0 3500 PSIPressure 3630

1000 2000 3000

Volumetric Efficiency

Overall Efficiency

Output Flow

Input Power

N=1500 r/minkW

HP140

Inpu

t Pow

er

120

100

80

60

40

200

160

140

120

100

80

60

40

20

00 L /min

U.S.GPMOutput Flow

40 80 120 160 200 240

0 10 20 30 40 50 60

P=MPa(PSI)

P=P=P=P=P=P=P=P=P=P=

2018161412108642

(2900)(2610)(2320)(2030)(1740)(1450)(1160)(870)(580)(290)

P=22(3190)P=24(3480)P=26(3770)P=28(4060)

P= 1 (145)

P=MPa(PSI)

P=P=P=P=P=P=P=P=P=P=

2018161412108642

(2900)(2610)(2320)(2030)(1740)(1450)(1160)(870)(580)(290)

P=22(3190)P=24(3480)P=26(3770)P=28(4060)

P= 1 (145)

N=1800 r/min

0 L /min

U.S.GPMOutput Flow

40 80 120 160 200 240

0 10 20 30 40 50 60

280

70

kWHP140

Inpu

t Pow

er

120

100

80

60

40

200

160

140

120

100

80

60

40

20

0

180

1800 r/min

1500 r/min

0 MPa5 10 15 20 25

0 3500 PSIFull Cut-off Pressure 3630

1000 2000 3000

Full

Cut

-off

Pow

er

0

HP

kW

5

10

15

0

2.5

5.0

7.5

10.0

12.5

1800 r/min

1500 r/min

Full Cut-off

Full Flow

0 MPa5 10 15 20 25

0 3500 PSIPressure 3630

1000 2000 3000

Dra

in

0

200

0

2.5

7.5

10.0L /min3 in. /min

600

400

5.0

Noi

se L

evel

90

70

60

dB(A)

80

N=1500 r/min

0 MPa5 10 15 20 25

0 3500 PSIPressure 3630

1000 2000 3000

Full Flow

Full Cut-off

0 MPa5 10 15 20 25

0 3500 PSIPressure 3630

1000 2000 3000

N=1800 r/min

Noi

se L

evel

90

70

60

dB(A)

80Full Flow

Full Cut-off

Eff

icie

ncy

Eff

icie

ncy

Performance Characteristics Curve

Input Power

Full Cut-off Power Drain

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover]

Example: At a pressure of under 20 MPa (2900 PSI), a flow 180 L/min (47.6 U.S.GPM), and rotation 1500 r/min, the axial input becomes about 64 kW (86 HP) as shown the dotted line in the graph.

Typical Performance Characteristics of Type "A145" at Viscosity 32 mm2/s (150 SSU) [ISO VG32 Oils, 40°C (104°F)]

1500,1800 r/min

Page 32: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type44

DIMENSIONS INMILLIMETRES (INCHES)

1.

2.

3.

2 3 2 3

3

1

Model NumbersA E

1/2 BSP. FA10-FR01C/H-1280

Dimensions mm(Inches) Thread Size

159(6.25)

SAE #8

F

3/8 BSP. F

SAE #6A10-FR01C/H-12950157

(6.18)

B

72(2.83)

71(2.80)

C

64(2.52)

62(2.44)

D

27(1.06)

22(.87)

Model Numbers

Tightening Torque Nm(IN. lbs.)

Suction Port & Discharge Port

Drain Port

A10-FR01B/C/H-12

A10-FR01C/H-12950

A10-FR01C/H-1280

65-75 (575-664)

47-51 (363-451)

56-62 (496-549)

40-50 (354-443)

40-50 (354-443)

33-36 (292-319)

Pressure Adj. Screw 13(.51) Hex.

INC.

Flow Adj. Screw 13(.51) Hex.

DEC.

Suction Port RC 1/2 Thd.

Fully Extended

102(4.02) 34(1.34) Dia. Spotface2 Places

Discharge Port RC 1/2 Thd.

85(3

.35)

64.5(2.54)

64.5(2.54)

167

(6.5

7) 103

(4.0

6)41

(1.6

1)

Fully Extended186(7.32)

44.5(1.75)

6.5(.26)90.5(3.56)

(2.07)52.5 25(.98)

10.5(.41)

131(5.16)156

(6.14)159.5(6.28)

65(2

.56)

19.0

5(.7

500)

19.0

2(.7

488)

Dia

.

21.2

4(.8

36)

21.0

8(.8

30)

82.5

5(3.

2500

)82

.50(

3.24

80)D

ia.

31(1

.22)

12 (.47

)

106(4.17)130

(5.12)93(3.66) Dia.

4.79(.1886) 4.76(.1874)

64.5(2.54)

64.5(2.54)

131(5.16)156

(6.14)

Drain Port RC 3/8 Thd.

Filling Port [22(.87) Hex. Head. Plug Furnished]

Pressure Adjustment Range "B"

Pressure Adjustment Range "C" & "H"

Flange Mtg.

For other dimensions, refer to above Pressure Adj. Range "C" & "H".

For other dimensions, refer to Japanese Standard "JIS".

Japanese Standard "JIS": A10-FR01-C/H-12

European Design Standard: A10-FR01-C/H-1280

Japanese Standard "JIS": A10-FR01-B-12

N. American Design Standard: A10-FR01-C/H-12950

C C

B B

A

159.5(6.28)

Install the pump so that the "Filling Port" is at the top.

Use either port of two suction and discharge ports at your option.Keep the remaining ports plugged.As the tightening torques of suction, discharge and drain portfittings, conform to the below.

2 3Suction Port "E" Thd.

2 3Discharge Port

1Filling Port

"E" Thd.

Draim Port "F" Thd.Plug

"D" Hex.

25(.98)

25(.98)

25(.98)

25(.98)

Page 33: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

45

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

"A"

Ser

ies

A

DIMENSIONS INMILLIMETRES (INCHES)

Axial Port Type

Side Port Type

Model Numbers "C" Thd. "D" Thd.

Rc 3/8

3/8 BSP.F

SAE #8

M 10

3/8-16 UNC

A16/A22-F-R-01-*-K-32

A16/A22-F-R-01-*-K-3280

A16/A22-F-R-01-*-K-3290

74(2.91)

74(2.91)

Surface of Suction Port Surface of Discharge Port

22.2(.874)

150.5(5.93)

188(7.40)

Fully Extended219(8.62)

44.5(1.75)

109(

4.29

)78

(3.0

7)

47.6

(1.8

74)

Discharge Port 19 (.75) Dia.Rear Side Suction Port 19 (.75) Dia."D" Thd. 17 (.67) Deep

4 Places (Both Sides)

95(3.74)

27.5(1.08)

50(1.969)

56.5(2.22)

180(7.09)

72.5(2.854)

72.5(2.854)

95(3.74)

80(3

.15)

15 (.59

)

14 (.55

)

12(.47) Dia. Through 24(.94) Dia. Spotface 4 Places

4.79(.1886) 4.76(.1874)

R12 (R .47)

18 (.71

)

12 (.47

)

95(3.74) Dia.106

(4.17)130

(5.12)188

(7.40)

96(3

.78)

Dia

.

19.0

5(.7

500)

19.0

2(.7

488)

Dia

.

21.2

4(.8

36)

21.0

8(.8

30)

12(.47)

172(6.77)

62(2

.44)10

9(4

.29)

187

(7.3

6)

Fully Extended219(8.62)

Discharge Port 19 (.75) Dia.

44.5(1.75)

59(2.32)

6.5(.26)

26.5(1.04)

25(.98)

Filling Port [22(.87) Hex. Head Plug Furnished]

Drain Port "C" Thd.

Lock Nut 17(.67) Hex.

Pressure Adj. Screw 17(.67) Hex.

Flow Adj. Screw 17(.67) Hex.

DEC.

16(.63)

16(.63)

47.6

(1.8

74)

65(2.56)

Suction Port 19(.75) Dia.

"D" Thd. 17(.67) Deep 8 Places

INC.

82.5

5(3.

2500

)82

.50(

3.24

80)

3(.1

2)

Flange Mtg.: A16-F-R-01-*-S-K-32/3280/32950A22-F-R-01-*-S-K-32/3280/32950

Foot Mtg.: A16-L-R-01-*-K-32/3280/32950A22-L-R-01-*-K-32/3280/32950

Flange Mtg.: A16-F-R-01-*-K-32/3280/32950A22-F-R-01-*-K-32/3280/32950

For other dimensions, refer to "Flange Mtg.".

Install the pump so that the "Filling Port" is at the top.

22.2(.874)

For other dimensions, refer to "Axial Port Type".Foot Mtg. Type; Mounting bracket is common to that of "Axial Port Type".

Page 34: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type46

DIMENSIONS INMILLIMETRES (INCHES)Side Port Type

Axial Port Type

Model Numbers "C" Thd. "D" Thd.

Rc 1/2

1/2 BSP.F

SAE #10

M 10

7/16-14 UNC

A37-F-R-01-*-K-32

A37-F-R-01-*-K-3280

A37-F-R-01-*-K-32950

Emm (IN.)

19 (.75)

20 (.79)

39(1.54)

120(4.72)

60(2.362)

230(9.06)

95(3.740)

102

(4.0

2)

15 (.59

)

14 (.55

)

14(.55) Dia. Through 28(1.10) Dia. Spotface 4 Places

3(.1

2)

95(3.740)

74(2.91)

115(4.53)

Discharge Port 32 (1.26) Dia.

Flow Adj. Screw17(.67) Hex.

DEC.

13(.51)

19(.75)

58.7

(2.3

11)

30.2(1.189)

72(2.83)

Suction Port 32(1.26) Dia.

"D" Thd. "E" Deep8 Places

Pressure Adj. Screw 17(.67) Hex.

INC.

202

(7.9

5)11

2(4

.41)

68(2

.68)

Fully Extended247(9.72)

59(2.32)Lock Nut 17(.67) Hex.

30(1.18)

77(3.03)

9.5(.37)

32(1.26)

195(7.68)

12(.47)

22.2

3(.8

752)

22.2

0(.8

740)

Dia

.

25.0

1(.9

85)

24.8

5(.9

78)

101.

60(4

.000

0)D

ia.

101.

55(3

.998

0)

6.38(.2512) 6.35(.2500)

R14 (R .55)

25 (.98

)

14 (.55

)

120(4.72) Dia.146

(5.75)174

(6.85)202

(7.95)

105

(4.1

3)

86(3.39)

Surface of Suction Port

Surface of Discharge Port

86(3.39)

59(2.32)

Fully Extended247(9.72)

Discharge Port 32 (1.26) Dia.Rear Side Suction Port 32 (1.26) Dia.

"D" Thd. "E" Deep 4 Places (Both Sides)

30.2(1.189)

112(

4.41

)

202(

7.95

)

58.7

(2.3

11)

178.5(7.03)

202(7.95)

Filling Port [22(.87) Hex. Head Plug Furnished]

Drain Port "C" Thd.

For other dimensions, refer to "Axial Port Type".Foot Mtg. Type; Mounting bracket is common to that of "Axial Port Type".

For other dimensions, refer to "Flange Mtg.".

Install the pump so that the "Filling Port" is at the top.

Foot Mtg.: A37-L-R-01-*-K-32/3280/32950

Flange Mtg.: A37-F-R-01-*-S-K-32/3280/32950

Flange Mtg.: A37-F-R-01-*-K-32/3280/32950

Page 35: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

47

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

"A"

Ser

ies

A

DIMENSIONS INMILLIMETRES (INCHES)

Axial Port Type

Side Port Type

1.

2.

1

2

Model Numbers "C" Thd. "D" Thd.

Rc 3/4

3/4 BSP.F

SAE #12

M 10

7/16-14 UNC

A56-F-R-01-*-K-32

A56-F-R-01-*-K-3280

A56-F-R-01-*-K-32950

Emm (IN.)

19 (.75)

20 (.79)

62(2.44)

Fully Extended

Discharge Port 32 (1.26) Dia.Rear Side Suction Port 35 (1.38) Dia."D" Thd. "E" Deep

4 Places (Both Sides)

30.2(1.189)

138

(5.4

3)

236

(9.2

9)

58.7

(2.3

11)

191(7.52)

232(9.13)

100(3.94)

Surface of Suction Port Surface of Discharge Port

259.5(10.22)

100(3.94)

42(1.65)

120(4.72)

60(2.362)

230(9.06)

95(3.740)

102

(4.0

2)

15 (.59

)

14 (.55

)14(.55) Dia. Through 28(1.10) Dia. Spotface 4 Places

3(.1

2)

95(3.740)

115(4.53)

77(3.03)

101.

60(4

.000

0)D

ia.

Filling Port [22(.87) Hex. Head Plug Furnished]

Drain Port "C" Thd. (Both Sides)

101.

55(3

.998

0)

35.3

2(1.

391)

35.1

4(1.

383)

31.7

5(1.

2500

)31

.70(

1.24

80)D

ia.

207(8.15)

12(.47)

40(1.57)

50.5(1.99)

43.5(1.71)

62(2.44)Fully Extended

259.5(10.22)

77(3

.03)

Lock Nut 17(.67) Hex.

90(3

.54)13

8(5

.43)

236

(9.2

9)

Flange Mtg.: A56-F-R-01-*-S-K-32/3280/32950

Foot Mtg.: A56-L-R-01-*-K-32/3280/32950

Flange Mtg.: A56-F-R-01-*-K-32/3280/32950

For other dimensions, refer to "Flange Mtg.".

For other dimensions, refer to "Axial Port Type".Foot Mtg. Type; Mounting bracket is common to that of "Axial Port Type".

Install the pump so that the "Filling Port" is at the top.Use either port of the two drain ports at your option. Keep the remaining port plugged.

13(.51)

19(.75)

(2.99)76

58.7

(2.3

11)

Discharge Port 32 (1.26) Dia.

Suction Port 35(1.38) Dia.

"D" Thd. "E" Deep 8 Places

7.97(.3138) 7.94(.3126)

R14 (R.55)

25 (.98

)14 (.55

)

120(4.72) Dia.146

(5.75)174

(6.85)232

(9.13)

41(1.61)

49(1.93)

Surface of Drain Port

30.2(1.189)

9.5(.37)

Flow Adj. Screw17(.67) Hex.

DEC. Pressure Adj. Screw 17(.67) Hex.

INC.

Page 36: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type48

DIMENSIONS INMILLIMETRES (INCHES)

1.

2.

3.

1

2

3

Model Numbers "C" Thd. "D" Thd.

Rc 3/4

3/4 BSP.F

SAE #12

M 12

1/2-13 UNC

A70-FR01*S-60

A70-FR01*S-6080

A70-FR01*S-60950

19 (.75)

21 (.83)

"E" Thd.

M 10

3/8-16 UNC

Fmm (IN.)

125(4.921)

195(7.68)

37(1.46)

77(3.03)

127

(5.0

0)D

ia.

130

(5.1

2)

(6.73)130

3(.1

2)

(5.118)

171

130(5.118)

320(12.60)

22(.87) Dia. Through 43(1.69) Dia. Spotface 4 Places

42.5(1.67)

Y X

Pressure Adj. Screw 17(.67) Hex.

Flow Adj. Screw 17(.67) Hex.

DEC.INC.

Suction Port 38(1.50) Dia.

"D" Thd. "F" Deep 4 Places

Case Drain Port 5(.20) Hex. Soc.

Filling Port [22(.87) Hex. Head Plug Furnished]

Eye Bolt M10

69.9

(2.7

52)

246.5(9.70)

35.7(1.406)

Drain Port "C" Thd. (Both Sides)

Discharge Port 26(1.02) Dia.

"E" Thd. 17(.67) Deep4 Places

18(.71)

26.2(1.031)

246.5(9.70)

Fully Extended

310.5(12.22)

62(2.44)

65(2.56)

19.5(.77)

9.5(.37)

40(1.57)

31.7

5(1.

2500

)31

.70(

1.24

80)D

ia.

35.3

2(1.

391)

35.1

4(1.

383)

127.

00(5

.000

0)D

ia.

126.

95(4

.998

0)

90(3

.54)

18(.

71)

14(.

55)

114.4(4.504)

134(5.28)181

(7.126)211

(8.31)

114.

4(4

.504

)18

0(7

.09)

182

(7.1

7)11

8(4

.65)

14(.

55)

7.94(.3126)7.97(.3138)73

(2.87) (2.87)

95(3.74)

95(3.74)

Surface of Discharge Port

Surface of Drain Port Surface of Drain Port

Surface of Suction Port

35(1.38) Dia. Spotface

(From Rear) 2 Places

27(1.06) Dia. Spotface (From Rear)

4 Places

52.4

(2.0

63)

73

Flange Mtg.: A70-FR01*S-60/6080/60950

Foot Mtg.: A70-LR01*S-60/6080/60950

View Arrow Y

View Arrow X

For other dimensions, refer to "Flange Mtg.".

Use either port of the two drain ports at your option. Keep the remaining port plugged.

Install the pump so that the "Filling Port" is at the top.

Case drain port is available for use when draining hydraulic fluid from pump casing.

26(1

.02)

24 (.94

)

16(.63)

Page 37: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

49

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

"A"

Ser

ies

A

DIMENSIONS INMILLIMETRES (INCHES)

2

3

1

Model Numbers "C" Thd. "D" Thd.

Rc 3/4

3/4 BSP.F

SAE #12

M 12

1/2-13 UNC

A90-FR01*S-60

A90-FR01*S-6080

A90-FR01*S-60950

19 (.75)

21 (.83)

"E" Thd.

M 10

7/16-14 UNC

Fmm (IN.)

Fully Extended329(12.95)

119.5(4.70)

13(.51)

63(2.48)

30.2(1.189)

270(10.63)

22 (.87)23

(.91)

38.1

0(1.

5000

)38

.05(

1.49

80)D

ia.

42.3

6(1.

668)

42.1

8(1.

661)

152.

40(6

.000

0)D

ia.

152.

35(5

.998

0)

113

(4.4

5)58.7

(2.3

11)

105(4.13)

105(4.13)

(2.68)68

(2.68)68

9.53(.3752)

161.

6(6

.362

) 190.

5(7

.50)

127

(5.0

0)

R22 (R.87)161.6

(6.362)

Surface of Discharge Port

Surface of Drain Port Surface of Drain Port

Surface of Suction Port

21.5(.85) Dia. Through 39(1.54) Dia. Spotface

(From Rear) 4 Places

Case Drain Port 5(.2) Hex. Soc.

Discharge Port 32(1.26) Dia.

"E" Thd. "F" Deep 4 Places

Drain Port "C" Thd. (Both Sides)

Pressure Adj. Screw 17(.67) Hex.Flow Adj. Screw

17(.67) Hex.

DEC.INC. Suction Port

48(1.89) Dia.

"D" Thd. "F" Deep 4 Places

Filling Port [27(1.06) Hex. Head Plug Furnished]

Eye Bolt M10

77.8

(3.0

63)

270(10.63)

42.9(1.689)

125(4.921)

200(7.87)

70(2.76)

110(4.33)

140

(5.5

1)

(8.46)

3(.1

2)

215

157.5(6.201)

375(14.76)

24(.

94)

25(.

98)

22(.87) Dia. Through 43(1.69) Dia. Spotface 4 Places

157.5(6.201)

23(.91)

95(3.74)

9.56(.3764)

Flange Mtg.: A90-FR01*S-60/6080/60950

Foot Mtg.: A90-LR01*S-60/6080/60950

View Arrow Y

View Arrow X

For other dimensions, refer to "Flange Mtg.".

Y X

1.

2.

3.

Use either port of the two drain ports at your option. Keep the remaining port plugged.

Install the pump so that the "Filling Port" is at the top.

Case drain port is available for use when draining hydraulic fluid from pump casing.

Page 38: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type50

DIMENSIONS INMILLIMETRES (INCHES)

1.

2.

3.

2

3

1

Model Numbers "C" Thd. "D" Thd.

Rc 3/4

3/4 BSP.F

SAE #12

M 12

1/2-13 UNC

A145-FR01*S-60

A145-FR01*S-6080

A145-FR01*S-60950

19 (.75)

21 (.83)

"E" Thd.

M 10

7/16-14 UNC

F

19 (.75)

20 (.79)

H

Dimensions mm (IN.)

114.3(4.500)

185(7.28)

80(3.15)

119(4.69)

187.

3(7

.37)

(11.02)187.3

3(.1

2)

(7.374)

280

438(17.24)

29(1

.14)

30(1

.18)

187.3(7.374)

22(.87) Dia. Through 43(1.69) Dia. Spotface 4 Places

Pressure Adj. Screw 17(.67) Hex.

INC.Suction Port 48(1.89) Dia.

"D" Thd. "F" Deep 4 Places

Filling Port [27(1.06) Hex. Head Plug Furnished]

Eye Bolt M10

42.9(1.689)

299.5(11.79)

77.8

(3.0

63)

26(1.02)

30.2(1.189)

299.5(11.79)

24(.94)

Case Drain Port 5(.2) Hex. Soc.

Discharge Port 32(1.26) Dia.

"E" Thd. "H" Deep 4 Places

58.7

(2.3

11)

357.5(14.07)

112(4.41)

89(3.50)

23(.91)13

(.51)70

(2.76)

Drain Port "C" Thd. (Both Sides)

Flow Adj. Screw 17(.67) Hex.

110

(4.3

3)

44.4

5(1.

7500

)44

.40(

1.74

80)D

ia.

49.3

9(1.

944)

49.2

1(1.

937)

152.

40(6

.000

0)D

ia.

152.

35(5

.998

0) R22 (R .87)

21.5(.85) Dia. Through 39(1.54) Dia. Spotface

(From Rear) 4 Places

228.6(9.000)

273(10.75)

228.

6(9

.000

)14

1(5

.55)

198.

5(7

.81)11.14

11.11.4386 .4374

72(2.83)

72(2.83)

112(4.41)

112(4.41)

143(5.63)

Surface of Discharge Port Surface of Suction Port

Surface of Drain PortSurface of Drain Port

INC.

Flange Mtg.: A145-FR01*S-60/6080/60950

Foot Mtg.: A145-LR01*S-60/6080/60950

Install the pump so that the "Filling Port" is at the top.

Use either port of the two drain ports at your option. Keep the remaining port plugged.

Case drain port is available for use when draining hydraulic fluid from pump casing.

For other dimensions, refer to "Flange Mtg.".

View Arrow X

X

Page 39: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

51

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

"A"

Ser

ies

ASpare Parts List

Name of PartsItem

Qty.

Part Numbers

2

6

7

16

20

23

33

37

54

62

64

Oil Seal

O-Ring

Bearing

O-Ring

O-Ring

O-Ring

Bearing

O-Ring

O-Ring

O-Ring

O-Ring

Pres. Adj. Range Remarks

B C & H

TCN24408Y

SO-NA-G50

6204

SO-NB-P14

SO-NB-G120

SO-NB-P6

HMK1215

SO-NB-P12

SO-NA-A018

SO-NB-P10

SO-NB-P9

1

1

1

1

1

2

1

6

1

1

1

1

1

1

1

2

1

5

1

1

1

71 Bonded Seal KP-C-04 2

73 O-Ring AS568-908 (NBR, Hs90) 2

Only for "1280" Design, Not included in Seal Kit

Only for "12950" Design, Not included in Seal Kit

Pump Model Numbers Seal Kit Numbers

A10-FR01B-12

A10-FR01C-12/1280/12950

A10-FR01H-12/1280/12950

KS-A10-01B-12

KS-A10-01H-12

List of Seals & Bearings

List of Seal Kits

When ordering seals, please specify the seal kit number from the table below.

A10-FR01-B-12A10-FR01C/H-12/1280/12950

Section X-X

38 35 36 39 25 22 21 15 18 19 40 28 27 14 29 12 11 1

10

8

3

4

9

5

34 42 24 17 32 30 31 26 1337

51 52 53 55 56 59 57 58 63 60 61

41

Design "1280" Only Design "12950" Only

372364

70 72

23 20 16

7

6

2

33

54 62 71 73

Page 40: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type52

Spare Parts List

Name of PartsItem Qty.Part Numbers

A16-*-R-01 A22-*-R-01 A37-*-R-01 A56-*-R-01

1

1

1

1

2

1

1

1

1

1

1

27

28

29

30

35

36

37

38

39

60

61

Bearing

Bearing

Oil Seal

Gasket

O-Ring

O-Ring

O-Ring

O-Ring

Seal Washer

O-Ring

O-Ring

6305

HMK 1715 Z30-1303-PK410300-8

TCN 254511

1303-PK211969-1

SO-NA-G25

SO-NB-P12

6307

HMK 2025V2

TCN 355511

1316-PK211970-9

SO-NA-G30

NUP 207E

HMK 2530V2

TCN 355511

1307-PK211971-7

SO-NA-P36

SO-NB-P10A

SO-NB-P9

SO-NA-A017

W8

SO-NB-P14

SO-NA-G55 SO-NA-G75

Pump Model Numbers Seal Kit Numbers

A16-*-R-01-*-K-*-32*

A22-*-R-01-*-K-*-32*

A37-*-R-01-*-K-*-32*

A56-*-R-01-*-K-*-32*

KS-A37-01-32

KS-A56-01-32

KS-A16-01-32

XX

25 40 9 2 44 3 25 11 52 31 4 22 1 32

58

57

51

5

55

54

49

532110817203319750

4356

When ordering seals, please specify the seal kit number from the table below.

List of Seal Kits

List of Seals and Bearings

Section X-X

A16/A22/A37/A56-*-R-01-*-*-K-32/3280/32950

35 6027

61

29

3028

45

38

46

47

23 43 37 14 18 15 13 24 12 34 39 16 41 36 6 42

Page 41: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

53

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

"A"

Ser

ies

ASpare Parts List

Name of PartsItem Qty.A70-*R01*S

5

22

38

39

40

42

43

44

67

68

70

Gasket

Back Up Ring

Bearing

Needle Bearing

Oil Seal

O-Ring

O-Ring

O-Ring

O-Ring

Seal Washer

O-Ring

1314E-PK211972-5

1310E-PK412440-0

NUP 208EX50

HMK 3030V2

TCN 355511

SO-FA-G85

SO-NA-P18

SO-NB-P9

SO-NB-P14

SO-NB-P15

W10

1

1

1

1

1

1

1

3

1

1

1

A90-*R01*S

Part Numbers

1310E-PK211973-3

1310E-PK412440-0

NUP 210E

HMK 3530BV2

TCN 456812

SO-FA-G95

SO-NA-P18

SO-NB-P9

SO-NB-P18

SO-NB-P5

Pump Model Numbers Seal Kit Numbers

A70-*R01*S-60*

A90-*R01*S-60*

KS-A70-01-60

KS-A90-01-60

X

A

X

25 2 61 33 31 13 28 16 15 14 17 29 65 30

66

52

48

6

62

60

9

51

413365632123755262755

25 26 27 28 29 30 31 32 33

23 58 11 7 8

24 19 21 20 18 10 54 50 69

59

Q

P

Z

Z

63

53

46

35

45

64

34

54

47

When ordering the seals, please specify the seal kit number from the table left.

List of Seal Kits

A70/A90-*R01*S-60/6080/60950

Section X-X Section X-X (Only for "A70")

Detail "A" Section Z-Z

List of Seals and Bearings

39 5

38

40

42

67

44

43 44 68

22 44 70

Page 42: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type54

Spare Parts List

Name of PartsItem Qty.Part Numbers

6

15

39

40

41

43

44

45

46

47

48

49

50

73

Gasket

Back Up Ring

Bearing

Needle Bearing

Oil Seal

O-Ring

O-Ring

O-Ring

O-Ring

O-Ring

O-Ring

Back Up Ring

Back Up Ring

O-Ring

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1312-PK211974-1

1310E-PK412440-0

NUP 2211ET2

TCN 507212

S-31.5 (NBR, Hs70)

SO-FA-G105

SO-NA-P18

SO-NB-P9

SO-NA-A017

SO-NA-A016

For SO-NB-A017

For SO-NB-A016

SO-NB-P18

76 O-Ring 1SO-NB-P5

X X

A

26 27 28 29 30 31 32 33 34

2 2634 11 1 32 38 10 13 12 16 71 31 72

28

57

64

4

68

54

9

55937603163378146562

30

74

29

27

35

70

67

59

25

653652516958

53

63

24 62 56 19 17 66 23

57

20

59221821

A145-*R01*S-60/6080/60950

List of Seals and Bearings

When ordering seals, please specify the kit number "KS-A145-01-60".

Section X-X Detail "A"

6

39

41

44

7346

40

4615

50 48

49474345

8Q-NK38 55 30

76

Page 43: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

55

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Solenoid Two Pressure Control Type

"A"

Ser

ies

A"A" Series Variable Displacement Piston Pumps – Single Pump, Solenoid Two Pressure Control Type

2.1.

2 1 Flange Mtg.

Foot Mtg.

Approx. Mass kg (lbs.)

24.5 (54.0)

24.5 (54.0)

36 (79.4)

43 (94.8)

63.5 (140)

80.5 (178)

97.5 (215)

Shaft Speed Range r/min

Max. Min.

600

600

600

600

600

600

600

1800

1800

1800

1800

1800

1800

1800

26.7 (58.9)

26.7 (58.9)

40.3 (88.9)

47.3 (104)

75.5 (166)

101 (223)

122.5 (270)

Minimum Adj. Pres. MPa (PSI)

1.2 (170)

1.2 (170)

1.2 (170)

1.2 (170)

2 (290)

2 (290)

2 (290)

Rated Intermittent

Operating Pressure MPa (PSI)

21 (3050)

16 (2320)

21 (3050)

21 (3050)

25 (3630)

25 (3630)

25 (3630)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

25 (3630)

25 (3630)

25 (3630)

A16-*-R-02-*-K*-32*

Geometric Displacement

3 cm /rev (cu. in. /rev)

Minimum Adj. Flow

3 cm /rev (cu. in. /rev)

Model Numbers

4 (.244)

6 (.366)

10 (.61)

12 (.73)

30 (1.83)

56 (3.42)

83 (5.06)

15.8 (.964)

22.2 (1.355)

36.9 (2.25)

56.2 (3.43)

70.0 (4.27)

91.0 (5.55)

145 (8.85)

A22-*-R-02-*-K*-32*A37-*-R-02-*-K*-32*A56-*-R-02-*-K*-32*A70-*R02S*-60*A90-*R02S*-60*A145-*R02S*-60*

SOL "OFF"

SOL "ON"

PL PH

PL PH

MO

Pressure

Out

put F

low

Whenever setting pressure, make sure the full cut-off pressure never exceeds the maximum intermittent pressure.

Graphic Symbol Performance Characteristics

Specifications

Solenoid operated directional valves used on these pumps are YUKEN DSG-01 series (standard type). For detail specifications of solenoid operated directional valves, refer to page 345.

Solenoid Ratings

When operating the pump exceeding the rated pressure, operating conditions are restricted. Refer to page 33 for the details.

Page 44: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Solenoid Two Pressure Control Type56

2.1.

1

1

2

2

Series Number

MountingDirection of

RotationControl

TypePort

PositionShaft

ExtensionDesign

Std.Design Number

*-32-K-S-02-R-FA16Coil Type of

Solenoid Valve

-A100

A16 3 (15.8 cm /rev)

A22 3 (22.2 cm /rev)

A37 3 (36.9 cm /rev)

A56 3 (56.2 cm /rev)

F:Flange Mtg.

L:Foot Mtg.

Viewed from Shaft End

R:Clockwise(Normal)

32

32

32

32

K:Keyed Shaft

None:Axial Port

S:Side Port

02:Solenoid Two Prsuure Control Type

ACA100, A120A200, A240

DCD12, D24D48R(AC DC Rectified)R100, R200

Refer to

MountingDirection of

RotationControl

Type

02R-F

F:Flange Mtg.

L:Foot Mtg.

Viewed from Shaft End

R:Clockwise(Normal)

60

60

60

S:Side Port

02:Solenoid Two Prsuure Control Type

ACA100, A120A200, A240

DCD12, D24D48R(AC DC Rectified)R100, R200

Port Position

SCoil Type of

Solenoid Valve

A100Design

Std.Design Number

*-60

Refer to

Series Number

A70

A70

A90 3 (91.0 cm /rev)

A145 3 (145 cm /rev)

Model Number Designation

Design Standards: None 80 950

Japanese Standard "JIS" European Design Standard N. American Design Standard

........... ...............

............

Available to supply pump with anti-clockwise rotation. Consult Yuken for details.

Performance CharacteristicsFor performance characteristics, refer to models of pressure compensator type on page 37 to 43.

Pipe Flange KitsFor pipe flange, refer to form of pressure compensator type on page 34.

3 (70.0 cm /rev)

Page 45: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

57

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Solenoid Two Pressure Control Type

"A"

Ser

ies

AAxial Port Type

1.

2.

1

2 3

2

Model Numbers

193 (7.60)

204 (8.03)

207 (8.15)

A16/A22-F-R-02-K-A*-3280

A16/A22-F-R-02-K-D*-3280

A16/A22-F-R-02-K-R*-3280

mm (IN.)

a b d

181 (7.13)

192 (7.56)

185.2 (7.29)

39 (1.54)

39 (1.54)

53 (2.09)

Model Numbers "C" Thd. "D" Thd. "E" Thd. "F" Thd.

Rc 1/4

1/4 BSP. Tr

SAE #4

Rc 3/8

3/8 BSP.F

SAE #8

G 1/2

1/2 NPT 3/8-16 UNC

M10A16/A22-F-R-02-K-*-32

A16/A22-F-R-02-K-*-3280

A16/A22-F-R-02-K-*-32950

Electrical Conduit Connection "D" Thd. (Both Ends)

Pilot Port "PP2" "E" Thd.

74.5(2.93)

4.79(.1886) 4.76(.1874)

51.5(2.03)

3(.12)

176

(6.9

3)19

4.5

(7.6

6)

12 (.47

)

18(.

71)

106(4.17)130

(5.12)188

(7.40)

Filling Port [22(.87) Hex. Head Plug Furnished]Drain Port "C" Thd.

96(3

.78)

25(.98)

26.5(1.04)

59(2.32)

6.5(.26)

112(4.41)

136(5.35)

141.5(5.57)

95(3.74)

44.5(1.75)

Fully Extended256.5(10.10)

Lock Nut 14(.55) Hex.

Lock Nut 17(.67) Hex.

"PP1""PP2"

272.

5(1

0.73

)14

5(5

.71)

117

(4.6

1)62

(2.4

4)

12(.47)

172(6.77) 19

.05(

.750

0)19

.02(

.748

8)D

ia.

21.2

4(.8

36)

21.0

8(.8

30)

82.5

5(3.

2500

) Dia

.82

.50(

3.24

80) 95(3.74) Dia.

R12(R.47)

Pilot Port "PP1" "E" Thd.

Pressure Adj. Screw (PL) 14(.55) Hex.

INC.Works at Solenoid De-energised

Pressure Adj. Screw (PH) 14(.55) Hex.

INC.Works at Solenoid Energised

Flow Adj. Screw 5(.20) Hex. Soc.

Suction Port 19(.75) Dia.

Discharge Port 19(.75) Dia.

"F" Thd. 17(.67) Deep 8 Places

16(.63)

23(.91)

161

(6.3

4)

47.6

(1.8

74)

65(2.56)

22.2(.874)

132.5(5.22)

d 51.5(2.03)

77.6(3.06)

ab

X

DEC.

3(.12)Cable Departure Cable Applicable: Outside Dia. ...... 8-10mm(.31-.39 in.)Conductor Area ...... Not Exceeding 2 1.5mm (.0023 Sq. IN.)

Flange Mtg.: A16-F-R-02-K-*-32/32950

For other dimensions, refer to 32/32950 design.

A22-F-R-02-K-*-32/32950

A16-F-R-02-K-*-3280A22-F-R-02-K-*-3280

View Arrow X

Install the pump so that the "Filling Port" is at the top.

The pilot port provided is for connecting a control valve, if multistage pressure control is required.

3. The pilot port "PP2" is not provided for N.American Design Standard.

DIMENSIONS IN MILLIMETRES (INCHES)

Side Port TypePort mounting dimensions are the same as those of pressure compensator model.Refer to page 45 for port mounting dimensions.

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 45 for the dimensions of mounting bracket.

Page 46: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Solenoid Two Pressure Control Type58

DIMENSIONS IN MILLIMETRES (INCHES)

Side Port Type

1

2 3

Model Numbers "C" Thd. "D" Thd. "E" Thd. "F" Thd.

Rc 1/4

1/4 BSP. Tr

SAE #4

Rc 1/2

1/2 BSP.F

SAE #10

G 1/2

1/2 NPT 7/16-14 UNC

M10A37-F-R-02-S-K-*-32

A37-F-R-02-S-K-*-3280

A37-F-R-02-S-K-*-32950

"H" mm (IN.)

20 (.79)

19 (.75)

30(1.18)

77(3.03)

9.5(.37)

135(5.31)

159(6.26)

164.5(6.48)

95(3.74)

59(2.32)

Fully Extended279.5(11.00)

Lock Nut 14(.55) Hex.

32(1.26)

178.5(7.03)

30.2(1.189)

12(.47)

Filling Port [22(.87) Hex. Head Plug Furnished]

Drain Port "C" Thd.

58.7

(2.3

11)

105

(4.1

3)

22.2

3(.8

752)

22.2

0(.8

740)

Dia

.

25.0

1(.9

85)

24.8

5(.9

78)

101.

60(4

.000

0)D

ia.

101.

55(3

.998

0)

68(2

.68)12

1(4

.76)

149

(5.8

7)

288.

5(1

1.36

)

"F" Thd. "H" Deep 4 Places

Front Side : Discharge Port 32(1.26) Dia. Rear Side : Suction Port 32(1.26) Dia.

X

71.5(2.81)

48.5(1.91)

6(.24)

6.38(.2512)6.35(.2500)

180

(7.0

9)19

8.5

(7.8

1)

14 (.55

)

25 (.98

)

120(4.72) Dia.

R14(R.55)

146(5.75)174

(6.85)202

(7.95)

Electrical Conduit Connection "D" Thd. (Both Ends)

Pilot Port "PP2" "E" Thd.

Lock Nut 17(.67) Hex.

Flange Mtg. : A37-F-R-02-S-K-*-32/32950

"PP1""PP2"

2

Model Numbers

197 (7.76)

208 (8.19)

211 (8.31)

A37-F-R-02-S-K-A*-3280

A37-F-R-02-S-K-D*-3280

A37-F-R-02-S-K-R*-3280

mm (IN.)

a b d

185 (7.28)

196 (7.72)

189.2 (7.45)

39 (1.54)

39 (1.54)

53 (2.09)

6(.24)

13(.51)

26(1.02)

86(3.39)

86(3.39)

165

(6.5

0)

Surface of Suction Port

Surface of Discharge Port

Pilot Port "PP1" "E" Thd.

Pressure Adj. Screw (PL) 14(.55) Hex.

INC.Works at Solenoid De-energised

Pressure Adj. Screw (PH)

14(.55) Hex.

INC.

Works at Solenoid Energised

Flow Adj. Screw 5(.20) Hex. Soc.

DEC.

Cable Departure Cable Applicable: Outside Dia. ...... 8-10mm(.31-.39 IN.)Conductor Area ...... Not Exceeding 2 1.5mm (.0023 Sq. IN.)155.5(6.12)

d 48.5(1.91)

74.6(2.94)

ab

For other dimensions, refer to 32/32950 design.

A37-F-R-02-S-K-*-3280

View Arrow X

1.

2.

Install the pump so that the "Filling Port" is at the top.

The pilot port provided is for connecting a control valve, if multistage pressure control is required.

3. The pilot port "PP2" is not provided for N.American Design Standard.

Foot Mounting TypeAxial Port TypePort mounting dimensions are the same as those of pressure compensator model.Refer to page 46 for port mounting dimensions.

Mounting bracket is common to that of pressure compensator model. Refer to page 46 for the dimensions of mounting bracket.

Page 47: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

59

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Solenoid Two Pressure Control Type

"A"

Ser

ies

A

DIMENSIONS IN MILLIMETRES (INCHES)

1.

3.

Install the pump so that the "Filling Port" is at the top.

The pilot port provided is for connecting a control valve, if multistage pressure control is required.

2. Use either port of two drain ports at your option.Keep the remaining port plugged.

4. The pilot port "PP2" is not provided for N.American Design Standard.

5. Dimensions show surface of drain port.

Foot Mounting TypeAxial Port TypePort mounting dimensions are the same as those of pressure compensator model.Refer to page 47 for port mounting dimensions.

Mounting bracket is common to that of pressure compensator model. Refer to page 47 for the dimensions of mounting bracket.

Model Numbers

222 (8.74)

233 (9.17)

236 (9.29)

A56-F-R-02-S-K-A*-3280

A56-F-R-02-S-K-D*-3280

A56-F-R-02-S-K-R*-3280

mm (IN.)

a b d

210 (8.27)

221 (8.70)

214.2 (8.43)

39 (1.54)

39 (1.54)

53 (2.09)

Cable Departure Cable Applicable: Outside Dia. ...... 8-10mm(.31-.39 IN.)Conductor Area ...... Not Exceeding 2 1.5mm (.0023 Sq. IN.)

168(6.61)

d48.5

(1.91)

74.6(2.94)

ab

A56-F-R-02-S-K-*-3280

For other dimensions, refer to 32/32950 design.

Side Port Type

1

2

3

5 5

3 4

"PP1"

"PP2"

Pressure Adj. Screw (PL) 14(.55) Hex.

INC.Works at Solenoid De-energised

Pilot Port "PP1" "E" Thd.

13(.51)

26(1.02)

6(.24)

190

(7.4

8)

100 100

Surface of Discharge Port

Surface of Suction Port

Pressure Adj. Screw (PH)

14(.55) Hex.INC.

Works at Solenoid Energised

Flow Adj. Screw 5(.20) Hex. Soc.

DEC.

71.5(2.81)48.5

(1.91)6

(.24)

Pilot Port "PP2" "E" Thd.

49(1.93)

25 (.98

)

223.

5(8

.80)

146(5.75)

174(6.85)

232(9.13)

14 (.55

)

41(1.61)

Electrical Conduit Connection "D" Thd. (Both Ends)

120(4.72) Dia.

R14(R.55)

40(1.57)

31.7

5(1.

2500

) Dia

.

35.3

2(1.

391)

35.1

4(1.

383)

101.

60(4

.000

0)D

ia.

101.

55(3

.998

0)

31.7

0(1.

2480

)30.2

(1.189)12

(.47)207

(8.15)

146

(5.7

5)

321.

5(1

2.66

)

"F" Thd. "H" Deep 4 Places

Front Side : Discharge Port 32(1.26) Dia. Rear Side : Suction Port 35(1.38) Dia.

X 174

(6.8

5)

90(3

.54)

77(3

.03)

58.7

(2.3

11)

43.5(1.71)

50.5(1.99) 9.5(.37)

147.5(5.81)

62(2.44)

171.5(6.75)

95(3.74)

177(6.97)

Fully Extended292(11.50)

Lock Nut 14(.55) Hex.

Lock Nut 17(.67) Hex.

Filling Port [22(.87) Hex. Head Plug Furnished]

Drain Port "C" Thd. (Both Sides)

7.94(.3126)7.97(.3138) 20

5(8

.07)

(3.94) (3.94)

Flange Mtg.: A56-F-R-02-S-K-*-32/32950

View Arrow X

Model Numbers "C" Thd. "D" Thd. "E" Thd. "F" Thd.

Rc 1/4

1/4 BSP. Tr

SAE #4

Rc 3/4

3/4 BSP.F

SAE #12

G 1/2

1/2 NPT 7/16-14 UNC

M10A56-F-R-02-S-K-*-32

A56-F-R-02-S-K-*-3280

A56-F-R-02-S-K-*-32950

"H" mm (IN.)

20 (.79)

19 (.75)

Page 48: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Solenoid Two Pressure Control Type60

3 4

5

1

2

3

Model Numbers

235 (9.25)

246 (9.69)

249 (9.80)

A70-FR02SA*-6080

A70-FR02SD*-6080

A70-FR02SR*-6080

mm (IN.)

a b d

223 (8.78)

234 (9.21)

227.2 (8.94)

39 (1.54)

39 (1.54)

53 (2.09)

Model Numbers

A70-FR02S*-60

A70-FR02S*-6080

A70-FR02S*-60950

"C" Thd. "D" Thd. "E" Thd. "F" Thd. "H" Thd. "J" mm (IN.)

Rc 1/4

1/4 BSP. Tr

SAE #4

Rc 3/4

3/4 BSP.F

SAE #12

G 1/2

1/2 NPT 7/16-14 UNC

M10

1/2-13 UNC

M12

21 (.83)

19 (.75)

Cable Departure Cable Applicable: Outside Dia. ...... 8-10mm(.31-.39 IN.)Conductor Area ...... Not Exceeding 2 1.5mm (.0023 Sq. IN.)

230(9.06)

d 64.5(2.54)

90.6(3.57)

ab

239(9.41)233.5(9.19)

Fully Extended354.5(13.96)

95(3.74)

209.5(8.25)

65(2.56)

(1.57)

62(2.44)

40

(.77)19.5

(.63)16

(.71)18

(1.031)26.2

(9.70)246.5

31.7

5(1.

2500

)31

.70(

1.24

80)D

ia.

35.3

2(1.

391)

35.1

4(1.

383)

127.

00(5

.000

0)D

ia.

126.

95(4

.998

0)

52.4

(2.0

63) 90

(3.5

4)

Drain Port "C" Thd. (Both Sides)

Discharge Port 26(1.02) Dia.

"F" Thd. 17(.67) Deep

4 Places

95(3.74)

95(3.74)

73(2.87)

73(2.87)

10(.39)

202.

5(7

.97)

186.

5(7

.34)

18(.

71)

14(.

55)

114.4(4.504)

134(5.28)181

(7.126)211

(8.31)

114.

4(4

.504

)18

0(7

.09)

217.

5(8

.56)

118

(4.6

5)23

6(9

.29)7.97(.3138)

7.94(.3126)

Surface of Discharge Port

Surface of Drain Port Surface of Drain Port

Surface of Suction Port

27(1.06) Dia. Spotface (From Rear)4 Places

35(1.38) Dia. Spotface(From Rear)

2 Places

Pilot Port "PP2""E" Thd.

Electrical Conduit Connection"D" Thd. (Both Ends)

(3.44)87.5

(.39)10

Pressure Adj. Screw (PL) 14(.55) Hex.

Flow Adj. Screw 17(.67) Hex.

DEC.

INC.Works at Solenoid De-energised

Pressure Adj. Screw (PH) 14(.55) Hex.

INC.

Works at Solenoid Energised

Suction Port 38(1.50) Dia.

Filling Port [22(.87) Hex. Head Plug Furnished]

Eye Bolt M10

"H" Thd. "J" Deep 4 PlacesCase Drain Port

5(.20) Hex. Soc.

(1.406)35.7

(9.70)246.5

69.9

(2.7

52)

Pilot port "PP1" "E" Thd.

Flange Mtg. : A70-FR02S*-60/60950

A70-FR02S*-6080

For other dimensions, refer to 60/60950 design.

View Arrow Y

View Arrow X

DIMENSIONS IN MILLIMETRES (INCHES)

1.

3.

Install the pump so that the "Filling Port" is at the top.

The pilot port provided is for connecting a control valve, if multistage pressure control is required.

2. Use either port of two drain ports at your option.Keep the remaining port plugged.

4. The pilot port "PP2" is not provided for N.American Design Standard.

5. Case drain port is available for use when draining hydraulic fluid from pump casing.

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 48 for the dimensions of mounting bracket.

YX

9.5(.37)

(2.54)64.5

Page 49: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

61

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Solenoid Two Pressure Control Type

"A"

Ser

ies

A

2

1

3

5

3 4

Model Numbers

A90-FR02S*-60

A90-FR02S*-6080

A90-FR02S*-60950

"D" Thd. "E" Thd. "F" Thd. "H" Thd. "J" mm (IN.)

Rc 1/4

1/4 BSP. Tr

SAE #4

Rc 3/4

3/4 BSP.F

SAE #12

G 1/2

1/2 NPT 7/16-14 UNC

M10

1/2-13 UNC

M12

20 (.79)

19 (.75)

"K" mm (IN.)

21 (.83)

19 (.75)

"C" Thd.

Model Numbers

244 (9.61)

255 (10.04)

258 (10.16)

A90-02FRSA*-6080

A90-02FRSD*-6080

A90-02FRSR*-6080

mm (IN.)

a b d

232 (9.13)

243 (9.57)

236.2 (9.30)

39 (1.54)

39 (1.54)

53 (2.09)

Cable Departure Cable Applicable: Outside Dia. 8-10mm(.31-.39 IN.)Conductor Area Not Exceeding 2 1.5mm (.0023 Sq. IN.)

255(10.04)

d 52(2.05)

54.1(2.13)

a

119.5(4.70)

23(.91)

95(3.74)

263.5(10.37)

13(.51)

63(2.48)

38.1

0(1.

5000

)38

.05(

1.49

80)D

ia.

42.3

6(1.

668)

42.1

8(1.

661)

152.

40(6

.000

0)D

ia.

152.

35(5

.998

0)

113

(4.4

5)

58.7

(2.3

11)

22(.87)23

(.91)

30.2(1.189)

270(10.63)

Discharge Port 32(1.26) Dia.

"F" Thd. "J" Deep 4 Places

Drain Port "C" Thd. (Both Sides)

Case drain Port 5(.20) Hex. Soc.

Surface of Discharge Port

Surface of Drain Port

Surface of Drain Port

Surface of Suction Port

Pilot Port "PP2""E" Thd.

105(4.13)

9.56(.3764) 9.53(.3752)

105(4.13)

68(2.68)

68(2.68)

2.5

(.1)

161.

6(6

.362

)22

6(8

.90)

245.

5(9

.67)

127

(5.0

0)

161.6(6.362)

196

(7.7

2)

212

(8.3

5)

21.5 (.85) Dia. Through 39(1.54) Dia. Spotface

(From Rear) 4 Places

R22(R.87)

258(10.16)

Fully Extended379(14.92)

95(3.74)

77.8

(3.0

63) 88

(3.4

6) 168

(6.6

1)19

6(7

.72)

270(10.63)

42.9(1.689)

Filling Port [27(1.06) Hex. Head Plug Furnished]

Eye Bolt M10

Electrical Conduit Connection "D" Thd. (Both Ends)

"H" Thd. "K" Deep 4 Places

Suction Port 48(1.89) Dia.

Pilot Port "PP1""E" Thd.

Pressure Adj. Screw (PL) 14(.55) Hex.

INC.Works at Solenoid De-energised

Flow Adj. Screw 17(.67) Hex.

DEC.

Pressure Adj. Screw (PH) 14(.55) Hex.

INC.Works at Solenoid Energised

22.5(.89)

2.5(.10)

Flange Mtg.:

For other dimensions, refer to 60/60950 design.

A90-FR02S*-6080

View Arrow X

View Arrow Y

A90-FR02S*-60/60950

DIMENSIONS IN MILLIMETRES (INCHES)

1.

3.

Install the pump so that the "Filling Port" is at the top.

The pilot port provided is for connecting a control valve, if multistage pressure control is required.

2. Use either port of two drain ports at your option.Keep the remaining port plugged.

4. The pilot port "PP2" is not provided for N.American Design Standard.

5. Case drain port is available for use when draining hydraulic fluid from pump casing.

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 49 for the dimensions of mounting bracket.

YX

52

(2.05)

b

Page 50: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Solenoid Two Pressure Control Type62

1

2

5

3 4

3

Model Numbers

246 (9.69)

257 (10.12)

260 (10.24)

A145-FR02SA*-6080

A145-FR02SD*-6080

A145-FR02SR*-6080

mm (IN.)

a b d

234 (9.21)

245 (9.65)

238.2 (9.38)

39 (1.54)

39 (1.54)

53 (2.09)

Model Numbers

A145-FR02S*-60

A145-FR02S*-6080

A145-FR02S*-60950

"D" Thd. "E" Thd. "F" Thd. "H" Thd. "J" mm (IN.)

Rc 1/4

1/4 BSP. Tr

SAE #4

Rc 3/4

3/4 BSP.F

SAE #12

G 1/2

1/2 NPT 7/16-14 UNC

M10

1/2-13 UNC

M12

20 (.79)

19 (.75)

"K" mm (IN.)

21 (.83)

19 (.75)

"C" Thd.

Cable Departure Cable Applicable: Outside Dia. 8-10mm(.31-.39 IN.)Conductor Area Not Exceeding 2 1.5mm (.0023 Sq. IN.)

275.5(10.85)

d 66.5(2.62)

89.5(3.52)

ab

58.7

(2.3

11)

Discharge Port 32(1.26) Dia.

"F" Thd. "J" Deep 4 Places

Case Drain Port 5(.20) Hex. Soc.

24(.94)26

(1.02)

30.2(1.189)

299.5(11.79)

285(11.22)

112(4.41)

70(2.76)

Drain Port "C" Thd. (Both Sides)

255.5(10.06)

Fully Extended400.5(15.77)

110

(4.3

3)

44.4

5(1.

7500

)44

.40(

1.74

80)D

ia.

49.3

9(1.

944)

49.2

1(1.

937)

152.

40(6

.000

0)D

ia.

152.

35(5

.998

0)

228.

6(9

.000

)19

8(7

.80)

247.

5(9

.74)

141

(5.5

5)

214

(8.4

3)

228.6(9.000)

273(10.75)

R22(R .87)21.5(.85) Dia. Through 39(1.54) Dia. Spotface

(From Rear) 4 Places

Surface of Discharge Port

Surface of Drain Port

Surface of Drain Port

Surface of Suction Port

Pilot Port "PP2""E" Thd.

112(4.41)

11.14(.4386) 11.11(.4374)

72(2.83)

12(.47)

112(4.41)

72(2.83)

Pressure Adj. Screw (PL) 14(.55) Hex.

INC.Works at Solenoid De-energised

Flow Adj. Screw 17(.67) Hex.

DEC.

Pilot Port "PP1""E" Thd.

Pressure Adj. Screw (PH) 14(.55) Hex.

INC.Works at Solenoid Energised

66.5(2.62)

12(.47)

229

(9.0

2)

279(10.98)

95(3.74)

Filling Port [27(1.06) Hex. Head Plug Furnished]

Eye Bolt M10

"H" Thd. "K" Deep 4 Places

Suction Port 48(1.89) Dia.

77.8

(3.0

63)

42.9(1.689)

299.5(11.79)

(3.50)89

Electrical Conduit Connection "D" Thd. (Both Ends)

Flange Mtg. : A145-FR02S*-60/60950

A145-FR02S*-6080

For other dimensions, refer to 60/60950 design.

View Arrow XView Arrow Y

DIMENSIONS IN MILLIMETRES (INCHES)

1.

3.

Install the pump so that the "Filling Port" is at the top.

The pilot port provided is for connecting a control valve, if multistage pressure control is required.

2. Use either port of two drain ports at your option.Keep the remaining port plugged.

4. The pilot port "PP2" is not provided for N.American Design Standard.

5. Case drain port is available for use when draining hydraulic fluid from pump casing.

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 50 for the dimensions of mounting bracket.

Y

X

23(.91)

13(.51)

Page 51: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

63

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator with Unloading Type

"A"

Ser

ies

A"A" Series Variable Displacement Piston Pumps – Single Pump, Pressure Compensator with Unloading Type

Shaft Speed Range r/min

Max. Min.

Unloading PressureMPa (PSI)

Rated Intermittent

Operating PressureMPa (PSI)

Geometric Displacement

3 cm /rev (cu. in. /rev)

Minimum Adj. Flow

3 cm /rev (cu. in. /rev)

Model Numbers

600

600

600

600

600

600

600

1800

1800

1800

1800

1800

1800

1800

1.2 (170)

1.2 (170)

1.2 (170)

1.2 (170)

1.2 (170)

1.2 (170)

1.2 (170)

A16-*-R-03-*-K-*-32*A22-*-R-03-*-K-*-32*A37-*-R-03-*-K-*-32*

21 (3050)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

25 (3630)

25 (3630)

25 (3630)

25 (3630)

25 (3630)

25 (3630)

21 (3050)

21 (3050)

4 (.244)

6 (.366)

10 (.61)

12 (.73)

30 (1.83)

56 (3.42)

83 (5.06)145 (8.85)

91.0 (5.55)

70.0 (4.27)

56.2 (3.43)

36.9 (2.25)

22.2 (1.355)

15.8 (.964)

A70-*R03S*-60*

A56-*-R-03-*-K-*-32*

A90-*R03S*-60*A145-*R03S*-60*

SOL "OFF"

SOL "ON"

Pressure

Out

put F

low

MO

Graphic Symbol Performance Characteristics

Specifications

2.1.

1

1

2

2

Series Number

MountingDirection of

RotationControl

TypePort

PositionShaft

ExtensionDesign

Std.Design Number

*-32-K-S-03-R-FA16Coil Type of

Solenoid Valve

-A100

A163 (15.8 cm /rev)

A223 (22.2 cm /rev)

A373 (36.9 cm /rev)

A563 (56.2 cm /rev)

F:Flange Mtg.

L:Foot Mtg.

Viewed from Shaft End

R:Clockwise(Normal)

32

32

32

32

K:Keyed Shaft

None:Axial Port

S:Side Port

03:PressureCompensatorwithUnloading Type

ACA100,A120A200,A240

DCD12,D24D48R(AC DC Rectified)R100,R200

Refer to

MountingDirection of

RotationControl

Type

03R-F

F:Flange Mtg.

L:Foot Mtg.

Viewed from Shaft End

R:Clockwise(Normal)

60

60

60

S:Side Port

03:PressureCompensatorwithUnloading Type

ACA100,A120A200,A240

DCD12,D24D48R(AC DC Rectified)R100,R200

Port Position

SCoil Type of

Solenoid Valve

A100Design

Std.Design Number

*-60

Refer to

Series Number

A70

A70

A903 (91.0 cm /rev)

A1453 (145 cm /rev)

Model Number Designation

Design Standards: None 80 950

Japanese Standard "JIS" European Design Standard N. American Design Standard

........... ...............

............

Available to supply pump with anti-clockwise rotation. Consult Yuken for details.

Consult Yuken when detailed material such as dimensions figures is required.

3 (70.0 cm /rev)

Page 52: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Proportional Electro-Hydraulic Load Sensing Type64

2.1.

2

1

2

1

Series Number MountingDirection of

RotationControl Type Port Position Design Std.

Design Number

*-60S04R-FA70

A70 3 (70.0 cm /rev)

A90 3 (91.0 cm /rev)

A145 3 (145 cm /rev)

F:Flange Mtg.

L:Foot Mtg.

Viewed from Shaft End

R:Clockwise

60

60

60

S:Side Port

04:Proportional Electro-Hydraulic Load SensingType

Refer to

CPressure Adj. Range

MPa (PSI)

C: 1.5 - 16 (220 - 2320)H: 1.5 - 21 (220 - 3050)

Series Number MountingDirection of

RotationControl Type

Shaft Extension

Design Std.Design Number

*-32-K-04-R-FA56

A22 3 (22.2 cm /rev)

A37 3 (36.9 cm /rev)

F:Flange Mtg.

L:Foot Mtg.

Viewed from Shaft End

R:Clockwise

32

32

32

32

K:Keyed Shaft

04:Proportional Electro-Hydraulic Load SensingType

Refer to

-CPressure Adj. Range

MPa (PSI)

B: C: H:

1.5 - 6.9 (220 - 1000) 1.5 - 15.7 (220 - 2280) 1.5 - 20.6 (220 - 2990)

A56 3 (56.2 cm /rev)

B: C:

1.5 - 6.9 (220 - 1000) 1.5 - 15.7 (220 - 2280)

B: C: H:

2 - 6.9 (290 - 1000) 2 - 15.7 (290 - 2280) 2 - 20.6 (290 - 2990)

A16 3 (15.8 cm /rev)

Model Number Designation

Design Standards: None 80

Japanese Standard "JIS" European Design Standard

........... ...............

Available to supply pump with anti-clockwise rotation. Consult Yuken for details.

Consult Yuken when “N. American Design Standard” is required.

"A" Series Variable Displacement Piston Pumps – Single Pump, Proportional Electro-Hydraulic Load Sensing Type

Performance Characteristics

Pressure

Out

put F

low

Input Current i (Small Large)

1

Inpu

t C

urre

nt i

(Sm

all

L

arge

)2

Graphic Symbols

MO

1

2

MO

1

2

A70/A90/A145

A16/A22/A37/A56

Page 53: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

65

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Proportional Electro-Hydraulic Load Sensing Type

"A"

Ser

ies

A

2

1.

2.

2

Pump Model Numbers

Name of Port

Suction

Discharge

Suction

Discharge

Suction

Discharge

Suction

Discharge

A16-*-R-04 A22-*-R-04

A70-*R04

Japanese Standard

"JIS"

European Design

Standard

Threaded Connection

Pipe Flange Kit Numbers

F5-06-A-10

F5-10-A-10

F5-06-A-10

F5-12-A-10

F5-10-A-10

F5-16-A-10

F5-10-A-10

F5-06-A-1080

F5-10-A-1080

F5-06-A-1080

F5-12-A-1080

F5-10-A-1080

F5-16-A-1080

F5-10-A-1080

A37-*-R-04 A56-*-R-04

A90-*R04 A145-*R04

MO

i1

i2

"PP"

Surge Cut-off Valve (SF1105-A-10)

Discharge port for pump model "A16" and "A22" is available only the threaded connections.

Detail of the pipe flange kits are shown on page 824.

Pipe Flange Kits

Bleeding Air

Pipe flange kits are available. When ordering, specify the kit number from the table below.

Instructions

Manual Adjustment Screws

Position of Cable DeparturePosition of cable departure can be changed. For details, refer to EDG-01 valve on page 672.

Connection of Surge Cut-off Valve to "A" Series Pump (For A16 to A56 Type)

2

Japanese Standard"JIS" &

European Design Standard

F5-06-B-10

F5-10-B-10

F5-06-B-10

F5-12-B-10

F5-10-B-10

F5-16-B-10

F5-10-B-10

1Socket Welding

2

Butt Welding

F5-06-C-10

F5-10-C-10

F5-06-C-10

F5-12-C-10

F5-10-C-10

F5-16-C-10

F5-10-C-10

Japanese Standard"JIS" &

European Design Standard

In case of using socket welding flanges, there is a case where the operating pressure should be set lower than the normal because of strength of the flanges. Therefore, please pay cautious attension to the operating pressure when the socket welding flanges are used.

In order to get steadily controlled pressure and flow, bleed air by loosening the air vent screw and fill solenoid armature with operating oil.

Manual adjustment screws may be used for initial running adjustment or in case of electrical failures in order to adjust pressure and flow temporarily. In case of normal use, put the manual adjustment screws back in their preset positions.

If using surge cut-off valve (SF1105-A-10), connect between pilot port "PP" of this pump and port "PP" of surge cut-off valve as pilot piping (refer to drawing below).Inside diameter of pipe should be more than 8 mm(.32 in.).Consult Yuken of detail of surge cut-off valve.

Page 54: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Proportional Electro-Hydraulic Load Sensing Type66

2

1

5

5

5

3

4

4

1.

2.

3.

4.

5.

Descriptions Model No.

1 - 28.4 (.26 - 7.5)

A16 A22 A37 A56 A70 A90 A145

15.8 (.964)

Max.

Min.

3 cm /rev (cu. in./rev)

Rated

Intermittent

Geometric Displacement

Operating Pressure MPa (PSI)

Shaft Speed Range r/min

Flow Control

Pres. Control

Applicable Amplifier Model

Approx. Mass kg

(lbs.)

Flange Mtg.

Foot Mtg.

Step Response

ms

L/min (U.S. GPM)

Flow Adj. Range

Min Pres. Required for Flow Adj.

MPa (PSI)

MPa (PSI)

Differential Pres. (Discharge Pres. -Load Pres.)

Step Response (0 Max. Flow) ms

Hysteresis

mARated Current

Coil Resistance [20°C (68°F)]

Hysteresis

mARated Current

Coil Resistance [20°C (68°F)] Ω

Pres. Adj. Range MPa (PSI)

t 1

t 2

16 (2320)

22.2 (1.355)

16 (2320)

36.9 (2.25)

16 (2320)

56.2 (3.43)

16 (2320)

70.0 (4.27)

21 (3050)

91.0 (5.55)

145 (8.85)

1800

600

1800

600

1800

600

1800

600

1800

600

1800

600

1800

600

21 (3050)

21 (3050)

21 (3050)

21 (3050)

21 (3050)

21 (3050)

21 (3050)

16 (2320)

21 (3050)

3% or less

10

Refer to Model Number Designation

2% or less

10

(Pres. Adj. Range) B: 770, C:880, H:790

C: 860 H: 765

C: 873 H: 765

C: 875 H: 755

AME-D2-1010-*-10

80

140

80

90

50

80

55

80

150

80

150

120

160

180

900 700 740 790 820 920 920

70 80 120 125 100 120 210

0.37 (55)

32 (70.6)

34.2 (75.4)

32 (70.6)

34.2 (75.4)

38 (83.8)

43.2 (95.3)

72.5 (160)

84.5 (186)

88.5 (195)

109 (240)

109.5 (241)

134.5 (297)

1 - 40 (.26 - 10.6)

1.5 (220)

1 - 66 (.26 - 17.4)

1 - 101 (.26 - 26.7)

1 - 126 (.26 - 33.3)

1 - 163 (.26 - 43.1)

2 - 261 (.53 - 69.0)

1.5 (220)

1.5 (220)

2.0 (290)

1.0 (145)

1.0 (145)

1.0 (145)

Model Loading Volumet 1 t 2

Pres. Step Response

High Pressure Hose 3/8" 2 m (6.6 ft)

High Pressure Hose 3/4" 2 m (6.6 ft)

High Pressure Hose 1-1/4" 2 m (6.6 ft)

1.5 16 MPa (220 2320 PSI)

16 1.5 MPa (2320 220 PSI)A16, A22

A37, A56

A70, A90 A145

2.0 16 MPa (290 2320 PSI)

3.0 16 MPa (435 2320 PSI)

16 2.0 MPa (2320 290 PSI)

16 3.0 MPa (2320 435 PSI)

0.22 (30)

45 (99.2)

49.3 (109)

Whenever setting pressure, make sure the full cut-off pressure neverexceeds the maximum intermittent pressure.

When operating the pump exceeding the rated pressure, operating conditions are restricted. Refer to page 33 for the details.

For detail specifications of power amplifiers, refer to page 780.

The figure mentioned in the above table are those obtained using Yuken's amplifier.

Step response depends on circuit and operating conditions. Data shown in the table above is an example based on the condition right.

Specifications

Page 55: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

67

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Proportional Electro-Hydraulic Load Sensing Type

"A"

Ser

ies

A

"H"

"C"

"B"

MPa21

PSI

20

16

12

8

4

0

3000

2500

2000

1500

1000

500

0

Ful

l Cut

-off

Pre

ssur

e

Input Current

0 200 400 600 800 900

mA

"H"

"C"

Input Current

0 200 400 600 800

mA

1000

MPaPSI

20

16

12

8

4

0

Ful

l Cut

-off

Pre

ssur

e

3000

2500

2000

1500

1000

500

0

3500 24

N=1800 r/min

Input Current

0 200 400 600 800 1000

mA

Out

put F

low

L /min32U.S.GPM

24

16

8

0

8

6

4

2

0

N=1800 r/min

Input Current

0 200 400 600 800

mA

Out

put F

low

L /min

40

U.S.GPM11

30

20

10

0

10

8

6

4

2

0

N=1800 r/min

Input Current

0 200 400 600 800

mA

Out

put F

low

L /min70

U.S.GPM18

60

50

40

30

20

10

0

16

14

12

10

8

6

4

2

0

N=1800 r/min

Input Current

0 200 400 600 800

mA

900

Out

put F

low

L /min110

U.S.GPM30

100

80

60

40

200

25

20

15

10

5

0

Input Current

0 200 400 600 800

mA

1000

N=1800 r/min

Out

put F

low

L /min140

U.S.GPM

0

120

80

40

0

10

20

3035

Input Current

0 200 400 600 800

mA

1000

Out

put F

low

L /min200

U.S.GPM

160

120

80

40

0

50

40

30

20

10

0

Input Current

0 200 400 600 800

mA

1000

N=1800 r/min

N=1800 r/min

Out

put F

low

L /min280

U.S.GPM75

240

200

160

120

80

40

0

70

60

50

40

30

20

10

0

Full Cut-off Pres. vs. Input CurrentA16/A22/A37/A56 A70/A90/A145

Note: Pressure adjustment range "H" is not available for A22.

Output Flow vs. Input CurrentA16

A22

A37

A56

A70

A90A145

Typical Performance Characteristics at Viscosity 20 mm2/s (100 SSU) [ISO VG32 Oils, 50°C (122°F)]

Page 56: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Proportional Electro-Hydraulic Load Sensing Type68

DIMENSIONS INMILLIMETRES (INCHES)

1

1. 2.

3.

3

2

Model Numbers "C" Thd. "D" Thd.

Rc 3/8

3/8 BSP.F

A16/A22-F-R-04-*-K-32

A16/A22-F-R-04-*-K-3280

"E" Thd. "F" Thd.

Rc 1/4

1/4 BSP.Tr

G 3/8

3/8 BSP.F

Rc 1/4

1/4 BSP.F

14(.55)

(.10)2.5

(.04)1

G 3/8 Thd.

28(1

.10)

Dia

.

18.6

(.73

) D

ia.1

94(3.70)

M10 Thd. 17(.67) Deep 4 Places

Suction Port 19(.75) Dia.

See 190.5(7.50)

32.5(1.28)

85(3.35)

56(2.20)

22.2(.874)Discharge Port

"E" Thd.

Air Vent 3(.12) Hex. 3 Places.

Manual Pressure Adj. Screw 3(.12) Hex. Soc.

INC.

(2.2

6)57

.5 (4.0

6)10

3

(1.8

9)48

(1.8

74)

47.6

70(2.76)

152.2(5.99) Cable Departure

(For Flow Control)

Pilot Port "PP" "D" Thd.

Safety Valve Pressure Adj. Screw 17(.67) Hex.

INC.

Tank Port "F" Thd.

95(3.74) Dia.

106(4.17)130

(5.12)

188(7.40)

R12 (R.47)

(.71

)18

(2.49)63.2

4.79(.1886) 4.76(.1874)

(4.00)101.5

Air Vent 3 (.12) Hex. Soc.

Manual Pressure Adj. Screw 3 (.12) Hex. Soc.

(1.61)41

(.47

)12

INC.

Flange Mtg. : A16-F-R-04-*-K-32/3280A22-F-R-04-*-K-32/3280

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 45 for the dimensions of mounting bracket.

Detail of Discharge Port[For Japanese Standard]

Cable Applicable: Outside Dia......8-10 mm (.31-.39 IN.)

2 Conductor Area......Not Exceeding 1.5 mm (.0023 Sq. IN.)Do not touch the screw because it is adjusted at the time of shipment.

View Arrow X

2

12(.47)

Surface of Discharge Port

Surface of Suction Port

172(6.77)

262(10.31)

187(7.36)

X

Pressure Gauge Connection for Pump Discharge Pressure "D" Thd

(2.2

6)57

.5(6

.00)

152.

5(6

.99)

177.

5(1

0.06

)25

5.5

19.0

5(.7

500)

Dia

.

21.2

4(.8

36)

21.0

8(.8

30)

82.5

5(3.

2500

) Dia

.82

.50(

3.24

80)

19.0

2(.7

488)

(3.7

8)96

Filling Port [22(.87) Hex. Head Plug Furnished]

Drain Port "C" Thd.

Cable Departure (For Pres. Control)

25(.98)

26.5(1.04)

59(2.32)

167.5(6.59)

213(8.39)

6.5(.26)

229(9.02)

44.5(1.75)

Page 57: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

69

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Proportional Electro-Hydraulic Load Sensing Type

"A"

Ser

ies

A

DIMENSIONS INMILLIMETRES (INCHES)

1

1

Model Numbers "C" Thd. "D" Thd.

Rc 1/2

1/2 BSP.F

A37-F-R-04-*-K-32

A37-F-R-04-*-K-3280

Rc 1/4

1/4 BSP.Tr

14(.55) Dia. Through 28(1.10) Dia. Spotface 4 Places

14 (.55

)15 (.59

)10

2(4

.02)

120(4.72)

(3.740)95

(3.740)95

(9.06)230

3(.1

2)

60(2.362) (2.91)

74

(4.53)115

(1.54)39

115.5(4.55)

Cable Departure (For Flow Control)

100.5(3.96)27

(1.06)Pilot Port "PP""D" Thd.

58.7(3

.35)

85

(3.27)83

(1.42)42(1.65)

30.2(1.189)

22.2(.874)

36

M10 Thd. 19(.75) Deep 4 Places

Discharge Port 20(.79) Dia.

M10 Thd. 19(.75) Deep 4 Places

Suction Port 32(1.26) Dia.

(1.8

74)

47.6

12(.47)

Surface of Discharge Port

Surface of Suction Port

195(7.68)

282(11.10)

228(8.98)

(.28

)7

(5.8

0)14

7.2

(7.3

0)18

5.5

(10.

85)

275.

5

22.2

3(.8

752)

Dia

.

25.0

1(.9

85)

24.8

5(.9

78)

101.

60(4

.000

0)D

ia.

101.

55(3

.998

0)

22.2

0(.8

740)

(4.1

3)10

5

32(1.26)

30(1.18)

77(3.03)

110.5(4.35)

296.5(11.67)

308.5(12.15)

59(2.32)

(.37)9.5

Filling Port [22(.87) Hex. Head Plug Furnished]

Drain Port "C" Thd.

Cable Departure (For Pres. Control)

Air Vent 3(.12) Hex. Soc.3 Places

Manual Pressure Adj. Screw 3(.12) Hex. Soc.

INC.

Manual Flow Adj. Screw 3(.12) Hex. Soc.

INC.

Air Vent 3(.12) Hex. Soc.3 Places.

Pressure Gauge Connection for Pump Discharge Pressure "D" Thd

120(4.72) Dia. R14 (R .55)

146(5.75)

(.98

)25

(3.04)77.3 Safety Valve

Pressure Adj. Screw 3(.12) Hex. Soc.

INC.

6.38(.2512) 6.35(.2500)

(5.2

0)13

2

(.55

)14

174(6.85)202

(7.95)

X

(2.3

11)

View Arrow X

Foot Mtg. : A37-L-R-04-*-K-32/3280

Flange Mtg. : A37-F-R-04-*-K-32/3280

For other dimensions, refer to "Flange Mtg.".

1. Cable Applicable: Outside Dia......8-10 mm (.31-.39 IN.)

2 Conductor Area......Not Exceeding 1.5 mm (.0023 Sq. IN.)

Page 58: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Proportional Electro-Hydraulic Load Sensing Type70

DIMENSIONS INMILLIMETRES (INCHES)

1

2

1

14(.55) Dia. Through 28(1.10) Dia. Spotface 4 Places

60(2.362)(3.03)

77

(4.53)115

(1.65)42

120(4.72)

(3.740)95

(3.740)95

(9.06)230

14 (.55

)15 (.59

)10

2(4

.02)

(3.35)85

(1.50)38 44

(1.73)

30.2(1.189)

22.2(.874)

58.7

(1.8

74)

47.6(3

.70)

94

27(1.06)

100(3.94)

116(4.57)

Pilot Port "PP" "D" Thd.

M10 Thd. 19(.75) Deep 4 Places

Discharge Port 20(.79) Dia.

Cable Departure (For Flow Control)

12(.47)

Surface of Discharge Port

Surface of Suction Port

207(8.15)

240(9.45)294

(11.57)

40(1.57)

(1.71)43.5(1.99)50.5

(4.82)122.5

(12.15)308.5

(12.62)320.5

62(2.44)

Filling Port [22(.87) Hex. Head Plug Furnished]

Drain Port (Both Sides) "C" Thd.

Cable Departure (For Pres. Control)

Air Vent 3(.12) Hex. Soc.

3 Places

Manual Pressure Adj. Screw 3(.12) Hex. Soc.

INC.

Pressure Gauge Connection for Pump Discharge Pressure

"D" Thd

31.7

5(1.

2500

) Dia

.

35.3

2(1.

931)

35.1

4(1.

383)

101.

60(4

.000

0)D

ia.

101.

55(3

.998

0)

31.7

0(1.

2480

)

(.28

)7(5

.80)

147.

2(7

.30)

185.

5(1

1.16

)28

3.5

(3.5

4)90

(3.06)77.8

(1.61)41

(1.93)49

Surface of Drain Port

Safety Valve Pressure Adj. Screw 3(.12) Hex. Soc.

INC.

7.97(.3138) 7.94(.3126)

(.98

)25(.55

)14

R14 (R.55)120(4.72) Dia.

146(5.75)174

(6.85)232

(9.13)

Manual Flow Adj. Screw 3(.12) Hex. Soc.

INC.

Air Vent 3(.12) Hex. Soc.3 Places.

X

3(.1

2)

M10 Thd. 19(.75) Deep 4 Places

Suction Port 35(1.38) Dia.

(2.3

11)

(.37)9.5

Flange Mtg. : A56-F-R-04-*-K-32/3280

1.

2.

Cable Applicable: Outside Dia......8-10 mm (.31-.39 IN.)

2 Conductor Area......Not Exceeding 1.5 mm (.0023 Sq. IN.)

Use either port of two drain ports at your option. Keep the remaining port plugged.

View Arrow X

Foot Mtg. : A56-L-R-04-*-K-32/3280

For other dimensions, refer to "Flange Mtg.".

Model Numbers "C" Thd. "D" Thd.

Rc 3/4

3/4 BSP.F

A56-F-R-04-*-K-32

A56-F-R-04-*-K-3280

Rc 1/4

1/4 BSP.Tr

Page 59: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

71

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Proportional Electro-Hydraulic Load Sensing Type

"A"

Ser

ies

A

DIMENSIONS INMILLIMETRES (INCHES)

1.

2.

3.

3

1

2

3

Model Numbers "C" Thd. "D" Thd.

Rc 1/4

1/4 BSP. Tr

Rc 3/4

3/4 BSP.F

A70-FR04*S-60

A70-FR04*S-6080

"E" Thd.

Rc 3/8

3/8 BSP. F

344.5 (13.56)

227.5 (8.96)

196.5 (7.74)191.5 (7.54)

Air Vent 3 (.12) Hex. Soc. 3 Places

Manual Pressure Adj. Screw 3 (.12) Hex. Soc.

INC.

62 (2.44)

19.5 (.77)

137 (5.39)

65 (2.56)

9.5 (.37)

40 (1.57)

Manual Flow Adj. Screw 3 (.12) Hex. Soc.

INC.

Air Vent 3 (.12) Hex. Soc.

3 Places

Cable Departure (For Flow Control)

Tank Port "E" Thd.

Cable Departure (For Pres. Control)

Drain Port (Both Sides) "C" Thd.

31.7

5 (1

.250

0)

31.7

0 (1

.248

0)D

ia.

35.3

2 (1

.391

) 35

.14

(1.3

83)

90

(3.5

4)

30.2

(1

.189

)

83

(3.2

7)

Primary Pressure Gauge Connection for Pump Discharge Pressure

"D" Thd.

M10 Thd. 17(.67) Deep 4 Places

16(.63)

58.7 (2.311)

18(.71)

215 (8.46)

276 (10.87)Discharge Port

25 (.98) Dia.

137(

5.39

)

120(

4.72

)

50

(1.9

7)

14(.

55)

14(.

55)

7.97 (.3138) 7.94 (.3126)

18(.

71)

114.

4(4

.504

)18

0(7.

09)

118

(4.6

5)19

6.5

(7.7

4)

73 (2.87)

73 (2.87)

104.3 (4.11)

140 (5.51)

95 (3.74)

169 (6.65)

196.5 (7.74)

114.4(4.504)

134 (5.28)181

(7.126)211

(8.31)

35 (1.38) Dia. Spotface (From Rear) 2 Places

27 (1.06) Dia. Spotface (From Rear) 4 Places

Surface of Drain Port

Surface of Suction Port

Safety Valve Pressure Adj. Screw 3 (.12) Hex. Soc.

INC.

69.9

(2

.752

)

35.7 (1.406)

246.5 (9.70)

Eye Bolt M10

Filling Port [22 (.87) Hex. Head plug Furnished]

Suction Port 38 (1.50) Dia.

M12 Thd. 19(.75) Deep4 Places

Case Drain Port 5 (.20) Hex. Soc.

Pilot Port "D" Thd.

Secondary Pressure Gauge Connection for Pump Discharge Pressure

"D" Thd.

Use either port of two drain ports at your option. Keep the remaining port plugged.

Case drain port is available for use when draining hydraulic fluid from pump casing.

Flange Mtg. : A70-FR04*S-60/6080

View Arrow X

X

Cable Applicable: Outside Dia......8-10 mm (.31-.39 IN.)

2 Conductor Area......Not Exceeding 1.5 mm (.0023 Sq. IN.)

Dia

.12

7.00

(5.

0000

) 12

6.95

(4.

9980

)

125(4.921)

195(7.68)

37(1.46)

77(3.03)

127

(5.0

0)D

ia.

130

(5.1

2)

(6.73)130

3(.1

2)

(5.118)

171

130(5.118)

320(12.60)

22(.87) Dia. Through 43(1.69) Dia. Spotface 4 Places

42.5(1.67)

Foot Mtg.: A70-LR04*S-60/6080

For other dimensions, refer to "Flange Mtg.".

26(1

.02)

24 (.94

)

Page 60: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Proportional Electro-Hydraulic Load Sensing Type72

DIMENSIONS INMILLIMETRES (INCHES)

1.

2.

3.

3

1

2

3

Model Numbers "C" Thd. "D" Thd.

Rc 1/4

1/4 BSP. Tr

Rc 3/4

3/4 BSP.F

A90-FR04*S-60

A90-FR04*S-6080

"E" Thd.

Rc 3/8

3/8 BSP. F

370.5 (14.59)

251 (9.88)

220 (8.66)215

(8.46)160.5 (6.32)

119.5 (4.70)

95 (3.74)

23(.91)

13(.51)

63(2.48)

23 (.91)

238.5 (9.39)

299.5 (11.79)

58.7(2.311)

38.1

0(1.

5000

) Dia

.

42.3

6(1.

668)

42.1

8(1.

661)

152.

40(6

.000

0)D

ia.

152.

35(5

.998

0)

38.0

5(1.

4980

)

(4.4

5)11

3

(3.2

7)83

Air Vent 3 (.12) Hex. Soc. 3 Places

Manual Pressure Adj. Screw 3 (.12) Hex. Soc.

INC.

Manual Flow Adj. Screw 3 (.12) Hex. Soc.

INC.

Air Vent 3 (.12) Hex. Soc. 3 Places

Cable Departure (For Flow Control)

Tank Port "E" Thd.

Cable Departure (For Pres. Control)

Drain Port (Both Sides) "C" Thd.

Primary Pressure Gauge Connection for Pump Discharge Pres.

"D" Thd.M10 Thd. 17(.67) Deep

4 PlacesDischarge Port 25 (.98) Dia.

Case Drain Port 5 (.20) Hex. Soc.

206.5 (8.13)

150 (5.91)

68(2.68)

68(2.68)

105 (4.13)

179 (7.05)

104.3(4.11)

Surface of Drain Port

Safety Valve Pressure Adj. Screw 3(.12) Hex. Soc.

INC.

Surface of Suction Port

(5.3

9)13

7

(4.7

2)12

0

50(1

.97)

161.6 (6.362)

(5.0

0)12

7(8

.11)

206

(6.3

62)

161.

6

9.56 (.3764) 9.53 (.3752)

R22 (R .87)

21.5(.85) Dia. Through 39(1.54) Dia. Spotface

(From Rear) 4 Places

Pilot Port "D" Thd.

Secondary Pressure Gauge Connection for Pump

Discharge Pressure "D" Thd.

X

View Arrow X

Flange Mtg. : A90-FR04*S-60/6080

Cable Applicable: Outside Dia......8-10 mm (.31-.39 IN.)

2 Conductor Area......Not Exceeding 1.5 mm (.0023 Sq. IN.)

Use either port of two drain ports at your option. Keep the remaining port plugged.

Case drain port is available for use when draining hydraulic fluid from pump casing.

Filling Port [27(1.06) Hex. Head Plug Furnished]

Eye Bolt M10

M12 Thd. 19(.75) Deep4 Places

Suction Port 48(1.89) Dia.

42.9 (1.689)

270 (10.63)

(3.0

63)

77.8

30.2

(1.1

89)

22 (.87)

125(4.921)

200(7.87)

70(2.76)

110(4.33)

140

(5.5

1)

(8.46)

3(.1

2)

215

157.5(6.201)

375(14.76)

24(.

94)

25(.

98)

22(.87) Dia. Through 43(1.69) Dia. Spotface 4 Places

157.5(6.201)

Foot Mtg.: A90-LR04*S-60/6080

For other dimensions, refer to "Flange Mtg.".

Page 61: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

73

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Proportional Electro-Hydraulic Load Sensing Type

"A"

Ser

ies

A

DIMENSIONS INMILLIMETRES (INCHES)

1.

2.

3. Cable Applicable: Outside Dia......8-10 mm (.31-.39 IN.)

2 Conductor Area......Not Exceeding 1.5 mm (.0023 Sq. IN.)

3

1

2

3

Model Numbers "C" Thd. "D" Thd.

Rc 1/4

1/4 BSP. Tr

Rc 3/4

3/4 BSP.F

A145-FR04*S-60

A145-FR04*S-6080

"E" Thd.

Rc 3/8

3/8 BSP. F

Filling Port [27(1.06) Hex. Head Plug Furnished]

Eye Bolt M10

M12 Thd. 19(.75) Deep4 Places

Suction Port 48(1.89) Dia.

42.9 (1.689)

299.5 (11.79)

(3.0

63)

77.8

R22 (R.87)

273(10.75)

228.6(9.000)

(5.3

9)13

7

(4.7

2)12

0

50(1

.97)

21.5(.85) Dia. Through 39(1.54) Dia. Spotface

(From Rear) 4 Places

Pilot Port "D" Thd.

Secondary Pressure Gauge Connection for Pump Discharge Pressure

"D" Thd.

Manual Flow Adj. Screw 3 (.12) Hex. Soc.

INC.

Air Vent 3 (.12) Hex. Soc.

3 Places

Surface of Drain Port

Safety Valve Pressure Adj. Screw 3(.12) Hex. Soc.

INC.

Surface of Suction Port

(5.5

5)14

1(8

.19)

208

(9.0

00)

228.

6

11.14 (.4386) 11.11 (.4374)

72(2.83)85.3

(3.36)

72(2.83)

160(6.30)

112(4.41)

189(7.44)

216.5(8.52)

58.7(2.311)

264(10.39)332

(13.07)

26(1.02)

24(.94)

(1.1

89)

30.2

(3.2

7)83

70(2.76)

89(3.50)

168(6.61)

225(8.86)

249.5(9.82)

280.5(11.04)

400(15.75)

112(4.41)

13(.51)

23(.91)

Drain Port (Both Sides) "C" Thd.

Cable Departure (For Pres. Control)

Manual Pressure Adj. Screw 3 (.12) Hex. Soc.

INC.

Air Vent 3 (.12) Hex. Soc.

3 Places

Cable Departure (For Flow Control)

Tank Port "E" Thd.

Discharge Port 25 (.98) Dia.

Case Drain Port 5 (.20) Hex. Soc.

M10 Thd. 17(.67) Deep4 Places

Primary Pressure Gauge Connection for Pump Discharge Pres.

"D" Thd.

X

44.4

5(1.

7500

) Dia

.

49.3

9(1.

944)

49.2

1(1.

937)

152.

40(6

.000

0)D

ia.

152.

35(5

.998

0)

44.4

0(1.

7480

)

(4.3

3)11

0

Use either port of the two drain ports at your option. Keep the remaining port plugged.

Case drain ports are available for use when draining hydraulic fluidfrom pump casing.

Flange Mtg. : A145-FR04*S-60/6080

View Arrow X

114.3(4.500)

185(7.28)

80(3.15)

119(4.69)

187.

3(7

.37)

(11.02)187.3

3(.1

2)

(7.374)

280

438(17.24)

29(1

.14)

30(1

.18)

187.3(7.374)

22(.87) Dia. Through 43(1.69) Dia. Spotface 4 Places

Foot Mtg.: A145-LR04*S-60/6080

For other dimensions, refer to "Flange Mtg.".

Page 62: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Electro-Hydraulic Proportional Pressure & Flow Control Type74

1.

4.

2.

3.

2 3

2

1.

2.

Series Number

A70

A163 (15.8 cm /rev)

A223 (22.2 cm /rev)

A373 (36.9 cm /rev)

A563 (56.2 cm /rev)

A703 (70.0 cm /rev)

A903 (91.0 cm /rev)

A1453 (145.0 cm /rev)

MountingDirection of

RotationDesign

Std.Design Number

*-F

42

42

42

42

60

60

60

Compensation Number

06

11

01

02

60

60

60

Type of Outboard Pump

Control Pressure at Input Signal is 5 V

R 04E 16 M A -60 -60Control

Type

Unit of Control Pressure

Tilt Angle Sensor Bias Piston

Control Piston

Control Valve

Pressure Sensor

Proportional Solenoid

Amplifier

Input Signal for Pressure Control

Input Signal for Flow Control

Safety valve

Pressure

(S Input Voltage L)

Out

put F

low

(S

Inp

ut V

olta

ge

L)

Available to supply pump with anti-clockwise rotation. Consult Yuken for details.

Design Standards: None 80

Japanese Standard "JIS" European Design Standard

........... ...............

Amplifier Compensation Number may differ according to the main machine conditions. Consult Yuken for detail.

Model Number Designation

Performance Characteristics

Unloading pressure when input signal is 0 V.

Safety valve setting pressure

Graphic Symbols

A70/A90/A145A16/A22/A37/A56

1

"A" Series Variable Displacement Piston Pumps – Single Pump, Electro-Hydraulic Proportional pressure & Flow Control Type

These pumps, except A16 and A22 types, can be connected to outboard pumps.- A37/A56 type (outboard pump connection symbol: None): spigot diameter: 82.55 mm (3.250 in.) (A16, A22, and PV2R1).- A70/A90/A145 type (outboard pump connection symbol: "A"): spigot diameter:82.55 mm (3.250 in.) (A16, A22, and PV2R1).- A70/A90/A145 type (outboard pump connection symbol: "B"): spigot diameter:101.6 mm (4.000 in.)(A37 and PV2R2).

Consult Yuken when “N. American Design Standard” is required.

1

4Refer to

F:Flange Mtg.

L:Foot Mtg.

Viewed from Shaft End

R:Clockwise (Normal)

04E:Proportional Pressure & Flow ControlType

A:B:

NoneM: MPa

P: PSI

Use the same measure

as shown on the right, of the control pressure

6.9 MPa specify within the range of maximum operating pressure

2

2

2

Page 63: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

75

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Electro-Hydraulic Proportional Pressure & Flow Control Type

"A"

Ser

ies

A

1.

2.

3.

4.

2

1

3

4

Descriptions Model Numbers A16 A22 A37 A56 A70 A90 A145

3 cm /rev (cu. in./rev)

Geometric Displacement

Rated

Intermittent

Operating Pressure MPa (PSI)

r/minShaft Speed Range

Approx. Mass kg (lbs.)

Flange Mtg.

Foot Mtg.

Flow Control

Pressure Control

Flow

Pressure

Coil Resistance

Input Impedance

Supply Electric Power

Power Input (Max.)

Output Signal

Alarm Signal Output (Open Collector)

Ambient Temperature

[@ 20°C (68 °F)]

W

°C (°F)

Hysteresis

Repeatability

Input Signal

Min. Adjustment Pressure

MPa (PSI)

Min. Pres. Required for Flow Adj.

MPa (PSI)

Max. Flow L/min (U.S. GPM)

Hysteresis

Repeatability

Input Signal

15.8 (.964)

22.2 (1.355)

36.9 (2.25)

56.2 (3.43)

70.0 (4.27)

91.0 (5.55)

145.0 (8.85)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

25 (3630)

25 (3630)

25 (3630)

21 (3050)

21 (3050)

21 (3050)

16 (2320)

28 (4060)

28 (4060)

28 (4060)

600 - 1800

28.4 (7.5)

40.0 (10.6)

66.4 (17.5)

101.0 (26.7)

126.0 (33.3)

163.0 (43.1)

261.0 (69.0)

2.0 (290)

1 % or less

1 % or less

1 % or less

1 % or less

0.7 (100)

Max. Flow / 5 V DC

10

Specified Control Pressure / 5 V DC

Flow Control : 10 kΩ Pressure Control : 10 kΩ

24 V DC (21 - 28 V Included Ripple)

30

5 V DC/Max. Flow

5 V DC/Specified Control Pressure

Voltage : Max. 30 V DC Current : Max. 40 mA

0 - 50 (32 - 122) (With Circulated Air)

20.5 (45.2)

22.7 (50.1)

32.0 (70.6)

36.3 (80.0)

39.0 (86.0)

43.3 (95.5)

64.0 (141)

76.0 (168)

76.5 (169)

97.0 (214)

96.4 (213)

121.4 (268)

20.5 (45.2)

22.7 (50.1)

Whenever setting pressure, make sure the full cut-off pressure never exceeds the maximum intermittent pressure.

When operating the pump exceeding the rated pressure, operating conditions are restricted. Refer to page 33 for the details.

Maximum flow differs to shaft speed. The value listed above indicates shaft speed of 1800 r/min. For other shaft speed calculate by the ratio of shaft speed.

Specifications

Pipe Flange Kits

For Pipe flange, refer to form of pressure compensator type on page 34.

InstructionsInput SignalThe pump is on unload condition when the pump is operated without input signal voltage.

Electric SourceAlways turn off electric source whenever the connector for swash plate tilt angle sensor is removed.

Compensation of Pump Maximum Regulated Flow at Frequency

Painting on Amp. Box and SolenoiodTo maintain suitable radiation effect, the amp. Box and the solenoid of the control valve should not be painted.

To secure the required minimum pressure, special sequence valves are available, to be directly installed at the discharge port of the pump. Consult Yuken for details.

If the same maximum flow is required at 50 Hz or 60 Hz, connect short plug in the amplifier to 60 Hz at the place where supplied frequency is 60 Hz. At this condition, maximum flow comes to the same value at 50 Hz.If short plug is used at 60 Hz without making the change, maximum flow increased in proportion to frequency.

Page 64: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Electro-Hydraulic Proportional Pressure & Flow Control Type76

Outboard PumpsA37 to A145 type pumps, except A16 and A22, can be used as double pumps, by connecting an outboard pump on the cover side. See the table below for details.

AttachmentAmplifier

Outboard Pump Connection Symbol

Spigot Diameterfor Connecting

an Outboard Pumpmm (in.)

82.55(2.500)

101.6(4.000)

Connectable Pump

A16, A22, PV2R1

A37, PV2R2

None

"A"

"B"

A37/A56

A70/A90/A145

Connectable Outboard Pump

Outboard Pump Connection Symbol

Part Number ofCoupling Ass'y

098-PK412588-6

098-PK412623-1

Dimensionsmm (in.)

"D1" "D2"

19.5(.77)

26(1.02)

27(1.06)

36(1.42)

Serration Size

None

"A"

"B"

A37/A56

A70/A90/A145

Connectable pumps shafts are involute-serrated design, not the standard parallel key slot design. For details, including pump dimensions and model numbers, consult Yuken.

Please use assembly part number when ordering coupling assemblies for shaft connections to outboard pumps.

Coupling

"D1"

Dia

.

40 mm (1.57 in.)

"D2"

Dia

.

Involute-serration

18.75 24 0.75

25 24 1

PumpModel

No.

900(7963) and less

1742(15413) and less

2408(21305) and less

4348(38470) and less

4739(41930) and less

"B""None"/"A"Outboard pump connection symbol

519(4592) and less 935(8272) and less

977(8644) and less

951(8414) and less

A37

A56

A70

A90

A145

The maximum torque of outboard pumps is limited by shaft and coupling assembly strength. When determining the outboard pump type, the value of the displacement times the pressure for a particular pump should not exceed the value shown in the table below.

Selecting an Outboard Pump Type

Nominal Dia. No. of Teeth

Mojule

Inboard Pump andOutboard Pump

(q1 P1) (q2 P2)

Outboard Pumpq2 P2

q1, q2 : Displacement cm3/rev (cu.in./rev)P1, P2 : Pressure MPa (PSI)

Pump Model Numbers

SK1106- -16-06-10

SK1106- -16-06-1001

SK1106- -16-06-1002

SK1106- -22-11-10

SK1106- -22-11-1001

SK1106- -37-60-10

SK1106- -37-60-1001

SK1106- -37-60-1002

SK1106- -56-60-10

SK1106- -56-60-1001

SK1106- -56-60-1002

SK1106- -70-60-10

SK1106- -70-60-1001

SK1106- -70-60-1002

SK1106- -70-60-1003

SK1106- -91-60-10

SK1106- -91-60-1001

SK1106- -91-60-1002

SK1106- -91-60-1003

SK1106- -145-60-10

SK1106- -145-60-1001

SK1106- -145-60-1002

SK1106- -145-60-1003

– 14.7( – 2132)

14.7 – 19.6(2132 – 2842)

19.6 – 21.0(2842 – 3045)

– 14.7( – 2132)

14.7 – 16.0(2132 – 2320)

– 14.7( – 2132)

14.7 – 19.6(2132 – 2842)

19.6 – 21.0(2842 – 3045)

– 14.7( – 2132)

14.7 – 19.6(2132 – 2842)

19.6 – 21.0(2842 – 3045)

– 14.7( – 2132)

14.7 – 19.6(2132 – 2842)

19.6 – 22.6(2842 – 3277)

22.6 – (3277 – )

– 14.7( – 2132)

14.7 – 19.6(2132 – 2842)

19.6 – 22.6(2842 – 3277)

22.6 – (3277 – )

– 14.7( – 2132)

14.7 – 19.6(2132 – 2842)

19.6 – 22.6(2842 – 3277)

22.6 – (3277 – )

Amplifier Model NumbersControl Pressure

MPa (PSI)

A16-*R04E -06-42

A22-*R04E -11-42

A37-*R04E -60-42

A56-*R04E -60-42

A70-*R04E *-60-60

A90-*R04E *-60-60

A145-*R04E *-60-60

Note 1. The symbol " ", shown with pump and amplifier model numbers, is the control pressure at input signal of 5 V.

2. Cable for pump-amplifier connection is not included. See Page 85 for details on ordering cables.

For selection of the appropriate pump, both values, 1 and 2 , should be satisfied.

Page 65: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

77

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Electro-Hydraulic Proportional Pressure & Flow Control Type

"A"

Ser

ies

A

0 1 2 3Input Signal V DC

54

0 1 2 3Input Signal V DC

54

0 1 2 3Input Signal V DC

54

0 1 2 3Input Signal V DC

54

0 1 2 3Input Signal V DC

54

0 1 2 3Input Signal V DC

54

0 1 2 3Input Signal V DC

54

U.S.GPM8

2

0

Out

put F

low

6

4

L /min

8

0

16

24

32

U.S.GPM12

2

0

Out

put F

low

10

6

8

4

L /min

10

0

20

30

45

40

L /min

20

0

40

60

80U.S.GPM20

0

Out

put F

low

12

8

4

16

PSI4000

0

Ful

l Cut

-off

Pre

ssur

e 3000

2000

1000

0

5

10

15

20

25

28MPa

0 1 2 3Input Signal V DC

54

U.S.GPM

0

Out

put F

low

50

20

10

30

40

60

L /min

40

0

200

280

80

120

160

240

U.S.GPM

0

Out

put F

low

10

20

30

40

45L /min

25

0

125

50

75

100

175

150

U.S.GPM

0

Out

put F

low

10

20

30

40L /min

25

0

125

50

75

100

150

L /min

20

0

100

40

60

80

120U.S.GPM

0

Out

put F

low

10

15

25

30

5

20

1800 r/min

1500 r/min

1800 r/min

1500 r/min

1800 r/min

1500 r/min

1800 r/min

1500 r/min

1800 r/min

1500 r/min

1800 r/min

1500 r/min

1800 r/min

1500 r/min

A*-*R04E27.5M

A*-*R04E24.5M

A*-*R04E20.6M

A*-*R04E15.7M

A*-*R04E6.9M

Output Flow vs. Input Signal

Full Cut-off Pres. vs. Input Signal

A16

A22

A37

A56

A70

A90

A145Note: Pump characteristics at 1800 r/min is the same as those at 1500 r/min where frequency is compensated. (Refer to page 75.)

Refer to page 37 to 43 for performance characteristics of pressure compensator type excluding characteristics appeared on this catalogue.

Page 66: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Electro-Hydraulic Proportional Pressure & Flow Control Type78

DIMENSIONS INMILLIMETRES (INCHES)

1.

2.

3.

3

1

4.

3

3

4

2

Model Numbers "C" Thd.

Rc 3/8

3/8 BSP.F

A16/A22-FR04E*-*-42

A16/A22-FR04E*-*-4280

Y

Pres. Sensor Connector

47.6

(1.8

74)

Suction Port 19(.75) Dia.

22.2(.874)

65(2.56)

22.2(.874)

47.6

(1.8

74)

Cable Departure

Air Vent 3(.12) Hex. Soc.

3Places

205.5(8.09)

147.5(5.81)

26.5(1.04)

(2.32)59

Discharge Port 19 (.75) Dia.

M10 Thd. 17(.67) Deep8 Places

25(.98)

Filling Port [22(.87) Hex. Head Plug Furnished]

Drain Port "C" Thd.

44.5(1.75)

(6.77)172

(.47)12

19.0

5(.7

500)

Dia

.

21.2

4(.8

36)

21.0

8(.8

30)

82.5

5(3.

2500

) Dia

.82

.50(

3.24

80)

19.0

2(.7

488)

96(3

.78)

Tilt Angle Sensor Connector

6.5(.26)

Cable Applicable: Outside Dia. ...... 8-10mm(.31-.39 IN.)Conductor Area ...... Not Exceeding 2 1.5mm (.0023 Sq. IN.)

Flange Mtg. : A16-FR04E*-06-42/4280

Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 45 for the dimensions of mounting bracket.

Install the pump so that the "Filling Port" is at the top.

Do not touch the screw because it is adjusted at the time of shipment.

For cable connection with amplifiers, see page 85.

A22-FR04E*-11-42/4280

View Arrow X

View Arrow Y

X

18(.

71)

12(.

47)

R12 (R.47)

(4.17)106

(5.12)130

78(3

.07)

162

(6.3

8)

151.5(5.96)

142(5.59)

95(3.74) Dia.

4.79(.1886) 4.76(.1874)

232.5(9.15)

Page 67: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

79

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Electro-Hydraulic Proportional Pressure & Flow Control Type

"A"

Ser

ies

A

DIMENSIONS INMILLIMETRES (INCHES)

1.

2.

3.

1

3

3 3

2

Model Numbers "C" Thd.

Rc 1/2

1/2 BSP.F

A37-FR04E*-01-42

A37-FR04E*-01-4280

178.5 (7.03)

30.2 (1.189)

Plain Washer

End CoverSeal Cover

Hex. Hd. Screw

Suction Port 32(1.26) Dia.

M10 Thd. 19(.75) Deep4 Places

Tilt Angle Sensor Connector Pres. Sensor Connector

Cable Departure Cable Applicable: Outside Dia. ...... 8-10mm(.31-.39 IN.)Conductor Area ...... Not Exceeding 2 1.5mm (.0023 Sq. IN.)

Air Vent 3 (.12) Hex. Soc.

3 Places

Filling Port [22(.87) Hex. Head Plug Furnished]

Drain Port "C" Thd.

Discharge Port 32 (1.26) Dia.

M10 Thd. 19(.75) Deep4 Places

30.2(1.189)

12(.47)

178.5(7.03)

252.5(9.94)

31.7

5(1.

2500

) Dia

.

35.3

2(1.

391)

35.1

4(1.

383)

101.

60(4

.000

0)D

ia.

101.

55(3

.998

0)

31.7

0(1.

2480

)

105

(4.1

3)

274.5(10.81)

251.5(9.90)

224.5(8.84)

166.5(6.56)

77(3.03)

62(2.44)

30(1.18)

9.5(.37)

40(1.57)

151.5(5.96)

146.5(5.77)

86(3.39)

86(3.39)

Surface of Suction Port

Surface of Discharge Port

166

(6.5

4)90

(3.5

4)

120(4.72) Dia.

R14 (R.55)25

(.98

)

14(.

55)

7.97(.3138) 7.94(.3126)

146(5.75)

174(6.85)

X

58.7

(2.3

11)

58.7

(2.3

11)

Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 46 for the dimensions of mounting bracket.

Install the pump so that the "Filling Port" is at the top.

Do not touch the screw because it is adjusted at the time of shipment.

For cable connection with amplifiers, see page 85.

Flange Mtg. : A37-FR04E*-01-42/4280

View Arrow X

Page 68: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Electro-Hydraulic Proportional Pressure & Flow Control Type80

DIMENSIONS INMILLIMETRES (INCHES)

1.

3.

4.

2.

44

3

1

2

4

Model Numbers "C" Thd.

Rc 3/4

3/4 BSP.F

A56-FR04E*-02-42

A56-FR04E*-02-4280

191 (7.52)

30.2 (1.189)

Suction Port 35(1.38) Dia.

58.7

(2.3

11)

Tilt Angle Sensor ConnectorPres. Sensor Connector

Cable Departure Cable Applicable: Outside Dia. ...... 8-10mm(.31-.39 IN.)Conductor Area ...... Not Exceeding 2 1.5mm (.0023 Sq. IN.)

Air Vent 3 (.12) Hex. Soc.

3 Places

Discharge Port 32 (1.26) Dia.

M10 Thd. 19(.75) Deep

4 Places

Filling Port [22(.87) Hex. Head Plug Furnished]

Drain Port "C" Thd. (Both Sides)

287(11.30)

264(10.39)

237(9.33)

179(7.05)

62(2.44)

9.5(.37)

50.5(1.99)

40

(1.57)

58.7

(2.3

11)

31.7

5(1.

2500

) Dia

.

35.3

2(1.

391)

35.1

4(1.

383)

101.

60(4

.000

0)D

ia.

101.

55(3

.998

0)

31.7

0(1.

2480

)

90(3

.54)

30.2(1.189)

12(.47)

191(7.52)

265(10.43)

25(.

98)

14(.

55)

98(3

.86)

R14 (R.55)

146(5.75)

174(6.85)

191

(7.5

2)

Surface of Suction Port

Surface of Discharge Port

Surface of Drain PortSurface of Drain Port 41(1.61)

49(1.93)

100(3.94)

100(3.94)

160.5(6.32)

151.5(5.96)

X

7.97(.3128) 7.94(.3126)

120(4.72) Dia.

Flange Mtg. : A56-FR04E*-02-42/4280

Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 47 for the dimensions of mounting bracket.

Install the pump so that the "Filling Port" is at the top.

Do not touch the screw because it is adjusted at the time of shipment.

For cable connection with amplifiers, see page 85.

Use either port of two drain ports at your option.Keep the remaining port plugged.

View Arrow X

M10 Thd. 19(.75) Deep4 Places

Plain Washer

End CoverSeal Cover

Hex. Hd. Screw

43.5(1.71)

Page 69: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

81

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Electro-Hydraulic Proportional Pressure & Flow Control Type

"A"

Ser

ies

A

DIMENSIONS INMILLIMETRES (INCHES)

1.

3.

4.

2.

5.

1

4

4

4

2

3 3

5

Model Numbers "C" Thd.

Rc 3/4

3/4 BSP.F

A70-FR04E**-60-60

A70-FR04E**-60-6080

35(1.38) Dia. Spotface (From Rear)

2 Places

Y

Filling Port [22(.87) Hex. Head Plug Furnished]

Eye Bolt M10

Tilt Angle Sensor Connector

Pres. Sensor Connector

M12 Thd. 19(.75) Deep4 Places

Suction Port 38(1.50) Dia.

69.9

(2.7

52)

Case Drain Port 5 (.20) Hex. Soc.

246.5 (9.70)

35.7 (1.406)

Cable Departure Cable Applicable: Outside Dia. ...... 8-10mm(.31-.39 IN.)Conductor Area ......Not Exceeding 2 1.5mm (.0023 Sq. IN.)

Air Vent 3 (.12) Hex. Soc.

3 Places

Discharge Port 26 (1.02) Dia.

M10 Thd. 17(.67) Deep

4 Places

62(2.44)

(2.56)65

Drain Port "C" Thd. (Both Sides)

333.5(13.13)

307(12.09)

249(9.80)

19.5(.77)

9.5(.37)

40(1.57)31

.75(

1.25

00) D

ia.

35.3

2(1.

391)

35.1

4(1.

383)

127.

00(.

5000

0)D

ia.

126.

95(4

.998

0)

31.7

0(1.

2480

)

26.2(1.031)

16(.63)

246.5(9.70)

305.5(12.03)

18(.71)

90(3

.54)

18(.

71)

180

(7.0

9)11

8(4

.65)

207.

5(8

.17)

7.97(.3138) 7.94(.3126)

(2.87)73

(2.87)73

(3.74)95

(3.74)95

(4.59)116.5

(6.10)155

Surface of Suction PortSurface of Discharge Port

Surface of Drain PortSurface of Drain Port

X

181(7.126)

211(8.31)

52.4

(2.0

63)

Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 48 for the dimensions of mounting bracket.

Flange Mtg. : A70-FR04E**-60-60/6080

Install the pump so that the "Filling Port" is at the top.

Do not touch the screw because it is adjusted at the time of shipment.

For cable connection with amplifiers, see page 85.

Use either port of two drain ports at your option. Keep the remaining port plugged.

If you do not use the special sequence valve, plug the port (FP-SC-1/32).

View Arrow X

View Arrow Y

Plain Washer

End CoverSeal Cover

Hex. Hd. Screw

Page 70: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Electro-Hydraulic Proportional Pressure & Flow Control Type82

DIMENSIONS INMILLIMETRES (INCHES)

1.

3.

4.

2.

5.

4

4

4

2

1

5

3

Model Numbers "C" Thd.

Rc 3/4

3/4 BSP.F

A90-FR04E**-60-60

A90-FR04E**-60-6080

Eye Bolt M10

Tilt Angle Sensor Connector

Pres. Sensor Connector

Suction Port 48(1.89) Dia.

77.8

(3.0

63)

270 (10.63)

42.9 (1.689)

(4.63)117.5

(6.10)155

Surface of Suction PortSurface of Discharge Port

Surface of Drain PortSurface of Drain Port(4.13)105

(4.13)105

(2.68)68

(2.68)68

(6.362)161.6

R22 (R.87)

9.56(.3764) 9.53(.3752)

161.

6(6

.362

)12

7(5

.00)

217

(8.5

4)

21.5(.85) Dia. Through 39(1.54) Dia. Spotface

(From Rear) 4 Places

Cable Departure Cable Applicable: Outside Dia. ...... 8-10mm(.31-.39 IN.)Conductor Area ......Not Exceeding 2 1.5mm (.0023 Sq. IN.)

Drain Port "C" Thd. (Both Sides)

347(13.66)

320(12.60)

262(10.31)

95(3.74)

119.5(4.70)

13(.51)

63(2.48)

Filling Port [27(1.06) Hex. Head Plug Furnished]

Air Vent 3 (.12) Hex. Soc.

3 Places

Discharge Port 32 (1.26) Dia.

M10 Thd. 19(.75) Deep4 Places

58.7

(2

.311

)

Case Drain Port 5 (.20) Hex. Soc.

270(10.63)

22(.87)

23(.91)

30.2(1.189)

324(12.76)

38.1

0(1.

5000

) Dia

.

42.3

6(1.

668)

42.1

8(1.

661)

152.

40(6

.000

0)D

ia.

152.

35(5

.998

0)

38.0

5(1.

4980

)

(4.4

5)11

3 X

Flange Mtg. : A90-FR04E**-60-60/6080

Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 49 for the dimensions of mounting bracket.

View Arrow X

Install the pump so that the "Filling Port" is at the top.

Do not touch the screw because it is adjusted at the time of shipment.

For cable connection with amplifiers, see page 85.

Use either port of two drain ports at your option. Keep the remaining ports plugged.

If you do not use the special sequence valve, plug the port (FP-SC-1/32).

M12 Thd. 19(.75) Deep4 Places

Plain Washer

End CoverSeal Cover

Hex. Hd. Screw

23(.91)

Page 71: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

83

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Electro-Hydraulic Proportional Pressure & Flow Control Type

"A"

Ser

ies

A

DIMENSIONS INMILLIMETRES (INCHES)

1.

3.

4.

2.

5.

4

4

4

2

3

5

Model Numbers "C" Thd.

Rc 3/4

3/4 BSP.F

A145-FR04E**-60-60

A145-FR04E**-60-6080

Eye Bolt M10

Tilt Angle Sensor Connector

Pres. Sensor Connector

Suction Port 48(1.89) Dia.

77.8

(3.0

63)

299.5 (11.79)

42.9 (1.689)

Surface of Suction PortSurface of Discharge Port

Surface of Drain PortSurface of Drain Port(2.83)

72(2.83)72

(4.41)112

(4.41)112(6.67)169.5

11.14(.4386) 11.11(.4374)

(9.000)228.6 R22

(R.87)

21.5(.85) Dia. Through 39(1.54) Dia. Spotface

(From Rear)4 Places

(10.75)273

141

(5.5

5)21

9(8

.62)

228.

6(9

.000

)

Cable Departure Cable Applicable: Outside Dia. ...... 8-10mm(.31-.39 IN.)Conductor Area ...... Not Exceeding 2 1.5mm (.0023 Sq. IN.)

Drain Port "C" Thd. (Both Sides)

Discharge Port 32 (1.26) Dia.

M10 Thd. 19(.75) Deep

4 Places

58.7

(2

.311

)

24(.94)

30.2(1.189)

26(1.02)

299.5(11.79)357.5

(14.07)

A145-FR04E*A ; 379.5(14.94)A145-FR04E*B ; 383(15.08)

44.4

5(1.

7500

) Dia

.

49.3

9(1.

944)

49.2

1(1.

937)

152.

40(6

.000

0)D

ia.

152.

35(5

.998

0)

44.4

0(1.

7480

)

(4.3

3)11

0

70(2.76)

13(.51)

89(3.50)

23(.91)

273.5(10.77)

112(4.41)

331.5(13.05)

358.5(14.11)

X

Case Drain Port5 (.20) Hex. Soc.

Air Vent 3 (.12) Hex. Soc.

3 Places

Flange Mtg. : A145-FR04E**-60-60/6080

Install the pump so that the "Filling Port" is at the top.

Do not touch the screw because it is adjusted at the time of shipment.

For cable connection with amplifiers, see page 85.

Use either port of two drain ports at your option. Keep the remaining port plugged.

If you do not use the special sequence valve, plug the port (FP-SC-1/32).

View Arrow X

1Filling Port [27(1.06) Hex. Head Plug Furnished]

M12 Thd. 19(.75) Deep4 Places

Plain Washer

End CoverSeal Cover

Hex. Hd. Screw

Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 50 for the dimensions of mounting bracket.

(2.32)59

Page 72: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Electro-Hydraulic Proportional Pressure & Flow Control Type84

Amplifiers for Electro-Hydraulic Proportional Pressure & Flow Control Type Pumps (SK1106- -*-*-10**)

DescriptionModel No.

Applicable Coil Resistance

Input Impedance

Power Supply

Power Input (Max.)

Input Signal

Output Signal for Sensor Monitor

Ambient Temperature

Approx. Mass

10 Ω [at 20 °C (68 °F)]

10 kΩ (PIN, QIN)

24 V DC (21 - 28 V Included Ripple)

30 W

Max. Flow/5V (QIN), Specified Pres./5V (PIN)

5V/Max. Flow (SMQ), 5V/Specified Pres. (SMP)

0 - 50 °C (32 - 122 °F)

450 g (1.0 lbs.)

Connector

CN1 Solenoid

CN2 Power Supply

CN3 Pres. Sensor

CN4 Tilt Angle Sensor

CN5 Input/ Output Signal

1

2

1

2

3

1

2

3

4

1

2

3

4

5

1

2

3

4

5

6

Name of Signal

Power Supply for Sensor

Power Supply for Sensor

Output to pilot valve solenoid

Output Signal - Sensor Monitor Q(SMQ)

Output Signal - Sensor Monitor P (SMP)

Input Signal - Pres.

Input Signal - Common

Input Signal - Flow

(Pin)

(COM)

(Qin)

+8 [V]

0 [V]

0 [V]

+24 [V]

0 [V]

+5 [V]

0 [V]

0 [V]

0 [V]

0 [V]

Input Signal - Sensor

Input Signal - Sensor

(0V )

(24V)

N-SK 1106-10 ****-07

12

34

56

12

34

51

23

41

23

12

/ SOLENOID

/ POWER SUPPLY

FUSE (5A)

/ PRESSURE SENSOR

/ TILT ANGLE SENSOR

/ I/O SIGNAL

POWER

CN1

CN2

CN4

CN5

04E PUMP

CONTROLLER

CN3

MODELSK1106- - - -10

AMP. MFG NO.

PUMP MFG NO.

YUKEN KOGYO CO. LTD.

MADE IN JAPAN

FU

SE

92(3.62)

100(3.94)

48(1

.89)

5(.

20)

140

(5.5

1)

165

(6.5

0)

15

CN1Solenoid

CN2Power Supply

CN3Pres. Sensor

CN4Tilt Angle Sensor

CN5Input/Output Signal

Fuse

50/60 Hz Short Plug (Including in the Amplifier)

Specifications

DIMENSIONS IN MILLIMETRES (INCHES)

SK1106- -*-* **-10

Detail of Connector

Page 73: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

85

PISTON PUMPS

"A" Series Variable Displacement Piston PumpsSingle Pump, Electro-Hydraulic Proportional Pressure & Flow Control Type

"A"

Ser

ies

A

1.

2.

1

2

For Solenoid

For Power Supply

For Pressure Sensor

For Tilt Angle Sensor

For Signal

Name of Cable Ass'y

2000 (6.6) 5000 (16.4) 10000 (32.8)

Approx. Length of Cable mm(ft.)

Cable Ass'y Model Numbers

SK1112-S-2-10

SK1112-V-2-10

SK1112-P-2-10

SK1112-Q-2-10

SK1112-C-2-10

SK1112-S-5-10

SK1112-V-5-10

SK1112-P-5-10

SK1112-Q-5-10

SK1112-C-5-10

SK1112-S-10-10

SK1112-V-10-10

SK1112-P-10-10

SK1112-Q-10-10

SK1112-C-10-10

Cable Ass'y

: For Solenoid : For Power Supply

: For Pressure Sensor

: For Tilt Angle Sensor

: For Signal

Amplifier Model : SK1106-*-*-*-11**

06P 05P 04P 03P 02P

"A" Series Piston Pump

Proportional Pilot Valve

Pressure Sensor

Tilt Angle Sensor

Colour of Lead WireRed......Power Supply, +24V DC White...Power Supply, 0V Shield...Ground

Colour of Lead WireRed........Input Signal, Flow Black.....Input Signal, Common White....Input Signal, Pressure Yellow...Sensor Monitor, Pressure Green.....Sensor Monitor, Flow

PO

WE

R

Solenoid

CN

1

CN

2

Pow

er S

upply

Pres.

Sensor

CN

3

CN

4

Tilt A

ngle S

ensor

CN

5S

ignal

FU

SE

(5A

)

1 2 3 4 5 6 1 2 3 4 5 1 2 3 4 1 2 3 1 2

Cable Connection Between Pump and Amplifier

Cable assemblies are available. When ordering, specify the cable ass'y model numbers from the table below.

For the details of amplifier, see the previous page.

1

2

3

4

5

4 3

5

2

1

12345

The cable connections between the proportional pilot valve and the sensor of the pump and the attached amplifier (SK1106) are shown below.The cable assemblies are not included in the pump assembly. Purchase separately with model number described in the below table if required.

Page 74: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, "OBE" Type Electro-Hydraulic Proportional Pressure & Flow Control Type86

1.

2.

3.

2

Series Number

A16

A163 (15.8 cm /rev)

A223 (22.2 cm /rev)

A373 (36.9 cm /rev)

A563 (56.2 cm /rev)

A703 (70.0 cm /rev)

A903 (91.0 cm /rev)

A1453 (145.0 cm /rev)

MountingDirection of

RotationPort Position

Design Std.

Design Number

*-F

42

42

42

42

60

60

60

Compensation Number

06

11

01

02

60

60

60

Control Pressure at Input Signal is 5 V

R 04EH 70 S -06 -42Control

Type

Available to supply pump with anti-clockwise rotation. Consult Yuken for details.

Model Number Designation

Amplifier Compensation Number may differ according to the main machine conditions. Consult Yuken for detail.

Design Standards: None......Japanese Standard "JIS"950.........N.American Design Standard

1

3Refer to

F:Flange Mtg.

L:Foot Mtg.

Viewed from Shaft End

R:Clockwise (Normal)

04EH:

Proportional "OBE" Type

Pressure & Flow ControlType

None:Axial Port

S:Side Port

R: RightL: Left

Specify Control Pressurebetween 6.9 MPa andMaximum OperatingPressure(Refer to above Table)

AmplifierDirection

R

S:Side Port

Viewd fromShaft End

2

1.

2.

Pressure

(S Input Voltage L)

Out

put F

low

(S

Inp

ut V

olta

ge

L)

Performance Characteristics

Unloading pressure when input signal is 0 V.

Safety valve setting pressure

1

"A" Series Variable Displacement Piston Pumps – Single Pump, "OBE" Type Electro-Hydraulic Proportional Pressure & Flow Control Type

Tilt Angle Sensor Bias Piston

Control Piston

Control Valve

Pressure Sensor

Proportional Solenoid

Amplifier

Input Signal for Flow Control

Input Signal for Pressure Control

Safety valve

Graphic Symbols

A70/A90/A145A16/A22/A37/A56

kgf/cm2 MPa PSI

Control Pressure atInput Signal is 5 V

ControlPressure

Symbol (EX.)

6.9

10.3

13.7

17.2

20.6

7

21

16

70

105

140

175

210

71.4

214.2

163.2

7M

21M

16M

70

105

140

175

210

1000

1500

2000

2500

3000

1015

3045

2320

Example of Specified Control Pressure

Page 75: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

87

PISTON PUMPS

"A"

Ser

ies

A

"A" Series Variable Displacement Piston PumpsSingle Pump, "OBE" Type Electro-Hydraulic Proportional Pressure & Flow Control Type

1.

2.

3.

2

1

3

Descriptions Model Numbers A16 A22 A37 A56 A70 A90 A145

3 cm /rev (cu. in./rev)

Geometric Displacement

Rated

Intermittent

Operating PressureMPa (PSI)

r/minShaft Speed Range

Mass kg

(lbs.)

Flange Mtg.

Foot Mtg.

Flow Control

Pressure Control

Flow

Pressure

Coil Resistance

Input Impedance

Supply Electric Power

Power Input (Max.)

Output Signal

Alarm Signal Output (Open Collector)

Ambient Temperature

Ω [@ 20°C (68 °F)]

W

°C (°F)

Hysteresis

Repeatability

Input Signal

Min. Adjustment Pressure

MPa (PSI)

Min. Pres. Required for Flow Adj.

MPa (PSI)

Max. Flow L/min (U.S. GPM)

Hysteresis

Repeatability

Input Signal

15.8 (.964)

22.2 (1.355)

36.9 (2.25)

56.2 (3.43)

70.0 (4.27)

91.0 (5.55)

145.0 (8.85)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

25 (3625)

25 (3625)

25 (3625)

21 (3050)

21 (3050)

21 (3050)

16 (2320)

28 (4060)

28 (4060)

28 (4060)

600 - 1800

28.4 (7.5)

40.0 (10.6)

66.4 (17.5)

101.2 (26.7)

126.0 (33.3)

163.0 (43.1)

261.0 (69.0)

2.0 (290)

1 % or less

1 % or less

1 % or less

1 % or less

0.7 (100)

Max. Flow / 5 V DC

10

Specified Control Pressure / 5 V DC

Flow Control : 10kΩ Pres. Control : 10kΩ24 V DC (21 - 28 V Included Ripple)

30

5 V DC / Max. Flow

5 V DC / Specified Control Pressure

Voltage : Max. 30 V DC Current : Max. 40 mA

0 - 50 (32 - 122) (With Circulated Air)

20.7 (45.6)

22.9(50.5)

32.2(71)

36.5(80.5)

39.2(86.4)

43.5(95.9)

64(141)

76(168)

76.5 (169)

97(214)

98 (216)

123(271)

20.7 (45.6)

22.9(50.5)

Whenever setting pressure, make sure the full cut-off pressure never exceeds the maximum intermittent pressure.

When operating the pump exceeding the rated pressure, operating conditions are restricted. Refer to page 33 for the details.

Maximum flow differs to shaft speed. The value listed above indicates shaft speed of 1800 r/min. For other shaft speed calculate by the ratio of shaft speed.

Specifications

Pipe Flange KitsFor Pipe flange, refer to form of pressure compensator type on page 34.

InstructionsInput SignalThe pump is on unload condition when the pump is operated without input signal voltage.

Electric SourceAlways turn off electric source whenever the connector for swash plate tilt angle sensor is removed.

Compensation of Pump Maximum Regulated Flow at Frequency

Painting on Amp. Box and SolenoiodTo maintain suitable radiation effect, the amp. box and the solenoid of the control valve should not be painted.

If the same maximum flow is required at 50 Hz or 60 Hz, connect short plug in the amplifier to 60 Hz at the place where supplied frequency is 60 Hz. At this condition, maximum flow comes to the same value at 50 Hz.If short plug is used at 60 Hz without making the change, maximum flow increased in proportion to frequency.

Page 76: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, "OBE" Type Electro-Hydraulic Proportional Pressure & Flow Control Type88

Output Flow vs. Input Signal

Full Cut-off Pres. vs. Input Signal

A16

A22

A37

A56

A70

A90

A145

Note: Pump characteristics at 1800 r/min is the same as those at 1500 r/min where frequency is compensated. (Refer to page 87.)

Refer to page 37 to 43 for performance characteristics of pressure compensator type excluding characteristics appeared on this catalogue.

0 1 2 3Input Signal V DC Input Signal V DC

54

0 1 2 3 54

0 1 2 3 54

0 1 32 54

0 1 2 3 54

0 1 2 3 54

0 1 2 3 54

U.S.GPM8

2

0

Out

put F

low 6

4

L /min U.S.GPM L/min

Input Signal V DC Input Signal V DC

U.S.GPM L/min U.S.GPM L/min

Input Signal V DC Input Signal V DC

U.S.GPML/min

PSI MPa

U.S.GPM L/min

Input Signal V DC

0 1 32 54Input Signal V DC

0 1 32 54Input Signal V DC

U.S.GPML/min

8

0

16

24

32

12

2

0

Out

put F

low

10

6

8

410

0

20

30

4540

20

0

40

60

8020

0

Out

put F

low

12

8

4

16

4000

0

Ful

l Cut

-off

Pre

ssur

e

3000

2000

1000

kgf/cm2(PSI)280 (4000)

0

Ful

l Cut

-off

Pre

ssur

e

210 (3000)

140 (2000)

70 (1000)

0

5

10

15

20

2528

0

Out

put F

low 50

20

10

30

40

60

70

400

200

280

80

120

160

240

0

Out

put F

low

10

20

30

40

45

25

0

125

50

75

100

175

150

0O

utpu

t Flo

w

10

20

30

40

250

125

50

75

100

150

20

0

100

40

60

80

120

0

Out

put F

low

10

15

25

30

5

20

1800 r/min

1500 r/min

1800 r/min

1500 r/min

1800 r/min

1500 r/min

1800 r/min

1500 r/min

1800 r/min

1500 r/min

1800 r/min

1500 r/min

1800 r/min

1500 r/min

A*-*R04EH27.5M

A*-*R04EH24.5M

A*-*R04EH15.7M

A*-*R04EH6.9M

A*-*R04EH20.6M

A*-*R04EH280

A*-*R04EH210

A*-*R04EH140

A*-*R04EH70

Page 77: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

89

PISTON PUMPS

"A"

Ser

ies

A

"A" Series Variable Displacement Piston PumpsSingle Pump, "OBE" Type Electro-Hydraulic Proportional Pressure & Flow Control Type

DIMENSIONS INMILLIMETRES (INCHES)

Axial Port Type

Model Numbers "C" Thd. "D" Thd.

Rc 3/8

SAE #8 3/8-16 UNC

M10A16/A22-FR04EH*-*-42

A16/A22-FR04EH*-*-42950

Flange Mtg.: A16-FR04EH*-*-42/42950A22-FR04EH*-*-42/42950

(5.67)

(5.93)144

150.5

47.6

(1.8

74)

(5.67)144

(3.70)94

(2.56)65

(.874)22.2

Discharge Port19(.75) Dia.

Suction Port 19(.75) Dia.

"D" Thd. 17(.67) Deep8 Places

2See

96(3

.78)13

8.5

(5.4

5)

173.

5(6

.83)

251.

5(9

.90)

(.47)12

(6.77)172

21.2

4(.8

36)

21.0

8(.8

30)

19.0

5(.7

500)

Dia

.19

.02(

.748

8)

82.5

5(3.

2500

) D

ia.

82.5

0(3.

2480

)

(2.32)59

(8.70)221

(9.41)239

(1.75)44.5

(.98)25

(.26)6.5

(4.17)106

(5.12)130

11 (.43

)

18 (.71

)

4.79(.1886) 4.76(.1874)

R12(R.47)

Filling Port

Drain Port "C" Thd.Electrical Conduit Connection

G 1/2 Thd.

Air Vent 3(.12) Hex. Soc.

22(.87) Hex. Head Plug Furnished][

1

View Arrow X

1.

2.

3.

Install the pump so that the "Filling Port" is at the top.

Do not touch the screw because it is adjusted at the time of shipment.

For detail of amplifier, refer to page 95.

Side Port TypePort mounting dimensions are the same as those of pressure compensator model. Refer to page 45 for port mounting dimensions.

Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 45 for the dimensions of mounting bracket.

X

95(3.74) Dia.

(.98)25

Page 78: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, "OBE" Type Electro-Hydraulic Proportional Pressure & Flow Control Type90

DIMENSIONS INMILLIMETRES (INCHES)

Axial Port Type

Model Numbers "C" Thd. "D" Thd.

Rc 1/2

SAE #10 7/16-14 UNC

M10

"E"mm (IN.)

20 (.79)

19 (.75)A37-FR04EH*-*-42

A37-FR04EH*-*-42950

Flange Mtg.: A37-FR04EH*-*-42/42950

1.

2.

3.

Install the pump so that the "Filling Port" is at the top.

Do not touch the screw because it is adjusted at the time of shipment.

For detail of amplifier, refer to page 95.

Side Port TypePort mounting dimensions are the same as those of pressure compensator model. Refer to page 46 for port mounting dimensions.

Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 46 for the dimensions of mounting bracket.

View Arrow X

(5.75)

(6.00)146

152.5

58.7

(2.3

11)

(5.85)148.5

(3.98)101

(2.83)72

(1.189)30.2

(3.03)77

(9.59)243.5

(10.30)261.5

(2.32)59

(1.18)30

105

(4.1

3)142.

5(5

.61)

177.

5(6

.99)

267.

5(1

0.53

)

(.47)12

(7.68)195

25.0

1(.9

85)

24.8

5(.9

78)

22.2

3(.8

752)

Dia

.22

.20(

.874

0)

101.

60(4

.000

0) D

ia.

101.

55(3

.998

0)

(6.58)174

(5.75)146

14 (.55

)

25 (.98

)

6.38(.2512) 6.35(.2500)

X

32(1.26)

Discharge Port32(1.26) Dia.

2See

Suction Port 32(1.26) Dia.

"D" Thd. "E" Deep8 Places

Electrical Conduit ConnectionG 1/2 Thd.

Air Vent 3(.12) Hex. Soc.

Filling Port 22(.87) Hex. Head Plug Furnished][

1

Drain Port "C" Thd.

R14(R.55)120(4.72) Dia.

(.37)9.5

Page 79: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

91

PISTON PUMPS

"A"

Ser

ies

A

"A" Series Variable Displacement Piston PumpsSingle Pump, "OBE" Type Electro-Hydraulic Proportional Pressure & Flow Control Type

DIMENSIONS INMILLIMETRES (INCHES)

Axial Port Type

Model Numbers "C" Thd. "D" Thd.

Rc 3/4

SAE #12 7/16-14 UNC

M10

"E"mm (IN.)

20 (.79)

19 (.75)A56-FR04EH*-*-42

A56-FR04EH*-*-4290

Flange Mtg.: A56-FR04EH*-*-42/4290

1.2.

3.

Install the pump so that the "Filling Port" is at the top.Use either port of two drain ports at your option. Keep the remaining port plugged.

Do not touch the screw because it is adjusted at the time of shipment.4. For detail of amplifier, refer to page 95.

Side Port TypePort mounting dimensions are the same as those of pressure compensator model. Refer to page 47 for port mounting dimensions.

Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 47 for the dimensions of mounting bracket.

(5.75)

(6.00)146

152.5

58.7

(2.3

11)

(6.42)163

(4.57)116

(2.99)76

(1.189)30.2

(1.99)50.5

(10.08)256

(10.79)274

(2.44)62

(.37)9.5

90(3

.54)16

7.5

(6.5

9)

202.

5(7

.97)

300.

5(1

1.83

)

(.47)12

(8.15)207

35.5

2(1.

391)

35.1

4(1.

383)

31.7

5(1.

2500

) D

ia.

31.7

0(1.

2480

)

101.

60(4

.000

0) D

ia.

101.

55(3

.998

0)

40(1.57)

(6.85)174

(5.75)146

(1.61)41

(1.93)49

14 (.55

)

25 (.98

)

7.97(.3138) 7.94(.3126)

X

(1.71)43.5

View Arrow X

Discharge Port32(1.26) Dia.

3See

Suction Port 35(1.38) Dia.

"D" Thd. "E" Deep8 Places

Electrical Conduit ConnectionG 1/2 Thd.

Air Vent 3(.12) Hex. Soc.

Filling Port 22(.87) Hex. Head Plug Furnished][

1

2Drain Port "C" Thd. (Both Sides)

R14(R.55)

120(4.72) Dia.

Surface of Drain Port

Page 80: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, "OBE" Type Electro-Hydraulic Proportional Pressure & Flow Control Type92

DIMENSIONS INMILLIMETRES (INCHES)

Model Numbers "C" Thd. "E" Thd.

Rc 3/4

SAE #12 3/8-16 UNC

M10

"D" Thd.

1/2-13 UNC

M12

Dimensions mm (IN.)

F

21 (.83)

19 (.75)A70-FR04EH**S-*-60

A70-FR04EH**S-*-60950

Flange Mtg. Amplifier Direction "L" : A70-FR04EH*L_S-*-60/60950

1.

2.

3.

Install the pump so that the "Filling Port" is at the top.

Use either port of two drain ports at your option. Keep the remaining port plugged.

Do not touch the screw because it is adjusted at the time of shipment.4. For detail of amplifier, refer to page 95.5. If you use the special sequence valve, remove the plug.

Amplifier Direction "R" :A70-FR04EH*R_S-*-60/60950

Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 48 for the dimensions of mounting bracket.

5Plug2(.079) Hex. Soc.

4 Places

Discharge Port 26(1.02) Dia.

Electrical Conduit ConnectionG 1/2 Thd.

Air Vent 3(.12) Hex. Soc.

(2.87)73

(2.87)73

118

(4.6

5)21

3.5

(8.4

1)

179.

5(7

.07)

18 (.71

)

14 (.55

)(8.31)211

(7.126)181

(5.28)134

(4.504)114.4

X

(2.56)65

(12.36)314

(2.44)62

(.77)19.5

90(3

.54)

52.4

(2.0

63)

(.71)18

(12.07)306.5

(9.70)246.5

35.3

2(1.

391)

35.1

4(1.

383)

31.7

5(1.

2500

) D

ia.

31.7

0(1.

2480

)

127.

00(5

.000

0) D

ia.

126.

95(4

.998

0)

40(1.57)

(.37)9.5

(.63)16

(1.031)26.2

180

(7.0

9)

114.

4(4

.504

)

(4.23)107.5

(6.10)155

(3.52)89.5

(3.74)95

(3.74)95

7.97(.3138) 7.94(.3126)

Surface of Discharge Port

Surface of Drain Port

Surface of Suction Port

Surface of Drain Port

"E" Thd. 17(.67) Deep (From Rear)2 Places

35(1.38) Dia. Spotface

(From Rear)4 Places

27(1.06) Dia. Spotface

4 Places"D" Thd. "F" Deep

38(1.50) Dia.Suction Port

Drain Port"C" Thd. (Both Sides)

2

3

Surface of Electrical Conduit Connection

(9.70)246.5

(1.046)35.7

(4.63)117.5

69.9

(2.7

52)

View Arrow X

5(.20) Hex. Soc.Case Drain Port

[22(.87) Hex. Head Plug Furnished]Filling Port 1

(M10)Eye Bolt

Page 81: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

93

PISTON PUMPS

"A"

Ser

ies

A

"A" Series Variable Displacement Piston PumpsSingle Pump, "OBE" Type Electro-Hydraulic Proportional Pressure & Flow Control Type

DIMENSIONS INMILLIMETRES (INCHES)

Model Numbers "C" Thd. "E" Thd.

Rc 3/4

SAE #12 7/16-14 UNC

M10

"D" Thd.

1/2-13 UNC

M12

Dimensions mm (IN.)

F

21 (.83)

19 (.75)A90-FR04EH**S-*-60

A90-FR04EH**S-*-60950

Flange Mtg. Amplifier Direction "L" : A90-FR04EH*L_S-*-60/60950

1.

2.

3.

Install the pump so that the "Filling Port" is at the top.

Use either port of two drain ports at your option. Keep the remaining port plugged.

Do not touch the screw because it is adjusted at the time of shipment.4. For detail of amplifier, refer to page 95.5. If you use the special sequence valve, remove the plug.

Amplifier Direction "R" :A90-FR04EH*R_S-*-60/60950

Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 49 for the dimensions of mounting bracket.

58.7

(2.3

11) 11

3(4

.45)

42.3

6(1.

668)

42.1

8(1.

661)

38.1

0(1.

5000

) D

ia.

38.0

5(1.

4980

)

152.

40(6

.000

0) D

ia.

152.

35(5

.998

0)

(.51)13

(4.70)119.5(4.87)123.7

(3.74)95

(.91)23

63(2.48)

(.91)23

(12.76)324(10.63)

270

(.87)22

(1.189)30.2

127

(5.0

0)22

3(8

.78)

X

189

(7.4

4)

161.

6(6

.362

)

9.56(.3764) 9.53(.3752)

Surface ofElectrical Conduit Connection

(10.63)270

(1.689)42.9

77.8

(3.0

63)

View Arrow X

68

(4.21)107

(6.10)155

(3.52)89.5

(2.68)Surface ofDrain Port

Surface ofDrain Port

Air Vent 3(.12) Hex. Soc.

68(2.68)

(4.13)105

(4.13)105 Surface of

Suction PortSurface ofDischarge Port

(6.362)161.6

Drain Port"C" Thd. (Both Sides)

2

5Plug

Discharge Port 32(1.26) Dia.

(From Rear)4 Places

21.5(.85) Dia. Through39(1.54) Dia. Spotface

Electrical Conduit ConnectionG 1/2 Thd.

(R.87)R22

[27(1.06) Hex. Head Plug Furnished]Filling Port 1

(M10)Eye Bolt

4 Places"D" Thd. "F" Deep

48(1.89) Dia.Suction Port

3

4 Places"E" Thd. "F" Deep

2(.079) Hex. Soc.

Page 82: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, "OBE" Type Electro-Hydraulic Proportional Pressure & Flow Control Type94

DIMENSIONS INMILLIMETRES (INCHES)

Model Numbers "C" Thd. "E" Thd.

Rc 3/4

SAE #12 7/16-14 UNC

M10

"D" Thd.

1/2-13 UNC

M12

Dimensions mm (IN.)

F

21 (.83)

19 (.75)

H

20 (.79)

19 (.75)A145-FR04EH**S-*-60

A145-FR04EH**S-*-60950

Flange Mtg. Amplifier Direction "L" : A145-FR04EH*L_S-*-60/60950

1.

2.

3.

Install the pump so that the "Filling Port" is at the top.

Use either port of two drain ports at your option. Keep the remaining port plugged.

Do not touch the screw because it is adjusted at the time of shipment.4. For detail of amplifier, refer to page 95.5. If you use the special sequence valve, remove the plug.

Amplifier Direction "R" :A145-FR04EH*R_S-*-60/60950

Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 50 for the dimensions of mounting bracket.

58.7

(2.3

11) 11

0(4

.33)

49.3

9(1.

944)

49.2

1(1.

937)

44.4

5(1.

7500

) D

ia.

44.4

0(1.

7480

)

152.

40(6

.000

0) D

ia.

152.

35(5

.998

0)

(.51)13

(3.50)89

(5.89)149.5

(4.41)112

(.91)23

70(2.76)

(1.02)26

(14.07)357.5

(11.79)299.5

(.94)24

(1.189)30.2

141

(5.5

5)22

5(8

.86)

X

191

(7.5

2)

228.

6(9

.000

)

11.14(.4386) 11.11(.4374)

Surface ofElectrical Conduit Connection

(11.79)299.5

(1.689)42.9

77.8

(3.0

63)

View Arrow X

72

(4.23)107.5

(7.03)178.5

(3.52)89.5

(2.83)Surface ofDrain Port

Surface ofDrain Port

Air Vent 3(.12) Hex. Soc.

72(2.83)

(4.41)112

(4.41)112Surface of

Discharge Port

(9.000)228.6

(10.75)273

Surface ofSuction Port

Drain Port"C" Thd. (Both Sides)

2

5Plug

Discharge Port 32(1.26) Dia.

2(.079) Hex. Soc.

(From Rear)4 Places

21.5(.85) Dia. Through39(1.54) Dia. Spotface

Electrical Conduit ConnectionG 1/2 Thd.

(R.87)R22

[27(1.06) Hex. Head Plug Furnished]Filling Port 1

(M10)Eye Bolt

4 Places"D" Thd. "F" Deep

48(1.89) Dia.Suction Port

3

4 Places"E" Thd. "H" Deep

5(.20) Hex. Soc.Case Drain Port

Page 83: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

95

PISTON PUMPS

"A"

Ser

ies

A

"A" Series Variable Displacement Piston PumpsSingle Pump, "OBE" Type Electro-Hydraulic Proportional Pressure & Flow Control Type

Detail of Amplifier

Terminal Name

Input Signal, Pressure (+)

Input Signal (COM)

Input Signal, Flow (+)

Sensor Monitor Output, Pressure

Sensor Monitor Output, Tilt Angle

Power Supply

Alarm Output

Alarm Output (COM)

Output Current Check (to COM)

P IN

C

Q IN

SMP

SMQ

0 V

24 V

ALM S

ALM C

CH

Connecting Terminal

Circuit Schematic

Note 1. For "SENSOR MONITOR" terminal, external instruments should have input impedance of more than 10 kΩ.

2. For "CH" terminal, external instruments should have input impedance of more than 10 kΩ.

3. Volume adjustment of "DITHER", "GAIN", "CMG", "FMG" and "LQC" is made at the time of shipment.Adjustment at the customer is not required.

4. Use shielded cable for "Input" connection.The ground of the shielded cable must be connected to input signal side.

LED for Power Supply

50/60 Hz Short Plug

Connector for Tilt Angle Sensor

SPARE

CMGP GAIN

ALM

24 V

0 V

CALM

SSMQ SMP Q IN C P IN C H

FMG LQC DITHER

Compensation CartridgeFU

SE

FUSE

50H

z

60H

z

P IN

C

A

A

D CMG

FMG

LQC

ALARM

SENSOR

PRESS.

P GAIN

OSC

DITHER

24 V 0 V Q SENSORMONITOR

P SENSORMONITOR

ALARMSIG COM

SENSOR

POSITION

CH

Q IN

Page 84: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Pilot Pressure Control Type Pressure Compensator96

"A" Series Variable Displacement Piston Pumps – Single Pump, Pilot Pressure Control Type Pressure Compensator

2.

1.

2 1 Flange Mtg.

Foot Mtg.

Approx. Mass kg (lbs.)

8.5(18.7)

21(46.3)

21(46.3)

29(63.9)

36(79.4)

60.3(133)

77.5(171)

94(207)

Shaft Speed Range r/min

Max. Min.

600

600

600

600

600

600

600

600

1800

1800

1800

1800

1800

1800

1800

1800

10.7(23.6)

23.2(51.2)

23.2(51.2)

33.3(73.4)

40.3(88.9)

72.3(159)

98(216)

119(262)

Minimum Adj. Pres. MPa (PSI)

2.0(290)

1.2(175)

1.2(175)

1.2(175)

1.2(175)

2(290)

2(290)

2(290)

Rated Intermittent

Operating PressureMPa (PSI)

21(3050)

21(3050)

16(2320)

21(3050)

21(3050)

25(3630)

25(3630)

25(3630)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

25 (3630)

25 (3630)

25(3630)

A16-*-R-07-*-K-32*

Geometric Displacement

3 cm /rev (cu. in. /rev)

Minimum Adj. Flow

3 cm /rev (cu. in. /rev)

Model Numbers

2(.122)

4(.244)

6(.366)

10(.610)

12(.732)

30(1.83)

56(3.42)

83(5.06)

10.0(.610)

15.8 (.964)

22.2(1.355)

36.9(2.25)

56.2(3.43)

70.0(4.27)

91.0(5.55)

145(8.85)

A70-*R07S-60*

A10-FR07-12*

A22-*-R-07-*-K-32*

A37-*-R-07-*-K-32*

A56-*-R-07-*-K-32*

A90-*R07S-60*

A145-*R07S-60*

MO

Pressure

Out

put F

low

Whenever setting pressure, make sure the full cut-off pressure never exceeds the maximum intermittent pressure.

When operating the pump exceeding the rated pressure, operating conditions are restricted. Refer to page 33 for the details.

Graphic Symbol Performance Characteristics

Specifications

Page 85: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

97

PISTON PUMPS

"A"

Ser

ies

A

"A" Series Variable Displacement Piston PumpsSingle Pump, Pilot Pressure Control Type Pressure Compensator

1

1

2

3.1.

2.

3

3

Series Number MountingDirection of

RotationControl

TypePort

PositionShaft

ExtensionDesign Std.

Design Number

*-32-K-S-07-R-FA16

A163 (15.8 cm /rev)

A223 (22.2 cm /rev)

A373 (36.9 cm /rev)

A563 (56.2 cm /rev)

F:Flange Mtg.

L:Foot Mtg.

Viewed from Shaft End

R:Clockwise(Normal)

32

32

32

32

K:Keyed Shaft

None:Axial Port

S:Side Port

07:Pilot Pressure Control Type Pressure Compensator

Refer to

MountingDirection of

RotationControl Type

07R-F

F:Flange Mtg.

L:Foot Mtg.

Viewed from Shaft End

R:Clockwise(Normal)

S:Side Port

07:Pilot Pressure Control Type Pressure Compensator

Port Position

S

Design Std.Design Number

*-60

Refer to

Series Number

A70

A103 (10.0 cm /rev)

A703 (70.0 cm /rev)

A903 (91.0 cm /rev)

A1453 (145 cm /rev)

12

60

60

60

F:Flange Mtg.

Mtg. Bracket Kit Numbers

Approx. Mass kg (lbs.)

LP-1A-10 2.2 (4.9)

Model Number Designation

Performance CharacteristicsFor performance characteristics, refer to models of pressure compensator type on page 36 to 43.

Pipe Flange KitFor pipe flange, refer to form of pressure compensator type on page 34.

Design Standards: None 80 950

Japanese Standard "JIS" European Design Standard N. American Design Standard

........... ............... ............

Available to supply pump with anti-clockwise rotation. Consult Yuken for details.

When A10 pump is used as the foot Mtg., order the Mtg. Bracket kitshown below separately. Refer to page 24 for dimensions of the Mtg.bracket.

Note: The mounting bracket kit consists of a mounting bracket, 2 hex. boltsand 2 plain washer.

Page 86: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Pilot Pressure Control Type Pressure Compensator98

DIMENSIONS INMILLIMETRES (INCHES)

Model NumbersA

159(6.26)

157(6.18)

B

72(2.83)

71(2.80)

C

64(2.52)

62(2.44)

D

22(.87)

27(1.06)

Thread SizeDimensions mm (IN.)

E

SAE #8

1/2 BSP. F

F

SAE #6

3/8 BSP. F

h

SAE #4

1/4 BSP. TrA10-FR07-1280

A10-FR07-12950

Model NumbersTightening Torque Nm (IN. lbs.)

Suction Port &Discharge Port

47-51 (416-451)

Drain Port

40-50 (354-443)A70-FR07-12950

65-75 (575-664) 40-50 (354-443)A70-FR07-12

56-62 (496-549) 33-36 (292-319)A70-FR07-1280

Flange Mtg.

Japanese Standard "JIS" : A10-FR07-12

1.

2.

3.

Install the pump so that the "Filling Port" is at the top.

Use either port of two suction and discharge ports at your option. Keep the remaining portsplugged.

As the tightening torques of suction, discharge and drain port fittings, conform to the below.

European Design Standard : A10-FR07-1280N. American Design Standard : A10-FR07-12950

1

3

171

(6.7

3)10

7(4

.21) 41

(.41)10.5

(6.14)156

(6.28)159.5

19.0

5(.7

5000

) Dia

.

21.2

4(.8

36)

21.0

8(.8

30)

82.5

5(3.

2500

) Dia

.82

.50(

3.24

80)

19.0

2(.7

4880

)

65(2

.56)

(.98)25

6.5(.26)

44.5(1.75)

52.5(2.07)

90.5(3.56)

170(6.69)

Fully Extended180(7.09)

Filling Port [22(.87) Hex. Head Plug Furnished]

Drain Port RC 3/8 Thd.

(5.16)131

(1.6

1)

4.79(.1886) 4.76(.1874)

93 (3.66)Dia.

11 (.43

)

(4.17)106

(5.12)130

2 3

2 3

Flow Adj. Screw 13(.51) Hex.

DEC.

Safety Valve Pressure Adj. Screw 3(.12) Hex. Soc.

INC.

Suction Port RC 1/2 Thd.

Discharge Port RC 1/2 Thd.

Pilot Port "PP"RC 1/4 Thd.

Fully Extended96.5(3.80)

33(1.30)

92(3

.62)

(.98)

25

(.98)

25

(2.54) (2.54)64.5 64.5

For other dimensions, refer to Japanese Standard "JIS".

2 3Suction Port

C CB B

A159.5(6.28)

1

"E" Thd.Discharge Port

"E" Thd.

Pilot Port "PP""H" Thd.

Plug"D" Hex.

Filling Port

Drain Port "F" Thd.

2 3

Page 87: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

99

PISTON PUMPS

"A"

Ser

ies

A

"A" Series Variable Displacement Piston PumpsSingle Pump, Pilot Pressure Control Type Pressure Compensator

DIMENSIONS INMILLIMETRES (INCHES)

Axial Port Type

Axial Port TypePort mounting dimensions are the same as those of pressure compensator model. Refer to page 45 for port mounting dimensions.

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 45 for the dimensions of mounting bracket.

1.

2.

2

2

1

Model Numbers

A16/A22-F-R-07-K-32

A16/A22-F-R-07-K-3280

A16/A22-F-R-07-K-32950

"C" Thd. "D" Thd. "E" Thd. "F" Thd.

Rc 1/4

1/4 BSP. Tr

SAE #4 3/8-16 UNC

M10Rc 3/8

3/8 BSP. F

SAE #6

Rc 3/8

3/8 BSP. F

SAE #8

202(7.95)

Fully Extended227(8.94)

187(7.36)

44.5(1.75)

59(2.32)

6.5(.26)

(1.04)26.5

25(.98)

12(.47)

172(6.77)

62(2

.44)

187

(7.3

6)

X

82.5

(3.2

5)

109

(4.2

9)

96(3

.78)

19.0

5(.7

5000

) Dia

.

21.2

4(.8

36)

21.0

8(.8

30)

82.5

5(3.

2500

) Dia

.82

.50(

3.24

80)

19.0

2(.7

4880

)

Pilot Port "PP""D" Thd.

Filling Port [22(.87) Hex. Head Plug Furnished]

Drain Port "C" Thd.

106(4.17)130

(5.12)188

(7.40)12 (.47

)

18 (.71

)

R12 (R.47)95(3.74) Dia.

4.79(.1886) 4.76(.1874)

43.5(1.71)

18(.71)(.63)

16

47.6

(1.8

74) 65

(2.5

6)

22.2(.874)

65(2.56)

Pilot Port "PP""E" Thd.

Flow Adj. Screw 5(.20) Hex. Soc.

DEC.

Safety Valve Pressure Adj. Screw 17(.67) Hex. Soc.

INC.

"F" Thd. 17(.67) Deep 8 Places

Suction Port 19(.75) Dia.

Discharge Port 19(.75) Dia.

Flange Mtg. : A16-F-R-07-K-32/3280/32950A22-F-R-07-K-32/3280/32950

Install the pump so that the "Filling Port" is at the top.

Use either port of two pilot ports at your option. Keep the remaining port plugged.

View Arrow X

Page 88: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Pilot Pressure Control Type Pressure Compensator100

DIMENSIONS INMILLIMETRES (INCHES)

Side Port Type

Axial Port TypePort mounting dimensions are the same as those of pressure compensator model. Refer to page 46 for port mounting dimensions.

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 46 for the dimensions of mounting bracket.

1.

2.

12

2Pilot Port "PP"

"E" Thd.

Flow Adj. Screw 5(.20) Hex. Soc

DEC.

Safety Valve Pressure Adj.Screw 17(.67) Hex. Soc

INC.

Surface of Discharge PortSurface of Suction Port

71(2

.80)

86(3.39)

86(3.39)

13(.51)

21(.83)

46.5(1.83)

202(7.95)

174(6.85)

146(5.75)

105

(4.1

3)

32(1.26)

30(1.18)

77(3.03)

9.5(.37)

210(8.27)

59(2.32)

225(8.86)

250(9.84)

58.7

(2.3

11)68

(2.6

8)

88.5

(3.4

8)

112

(4.4

1)

202

(7.9

5)X

178.5(7.03)

30.2(1.189)

12(.47)

"F" Thd. "H" Deep 4 Places (Both Sides)

Pilot Port "PP""D" Thd.

Filling Port [22(.87) Hex. Head Plug Furnished]

Drain Port "C" Thd.

Suction Port 32(1.26) Dia.

Discharge Port 32(1.26) Dia.(Rear Side)

R14 (R.55)

120(4.72) Dia.

25 (.98

)

14 (.55

)

6.38(.2512) 6.35(.2500)

22.2

3(.8

7520

) Dia

.

25.0

1(.9

85)

24.8

5(.9

78)

101.

60(4

.000

0)D

ia.

101.

55(3

.998

0)

22.2

0(.8

7400

)

Fully Extended

Flange Mtg. : A37-F-R-07-S-K-32/3280/32950

Install the pump so that the "Filling Port" is at the top.

Use either port of two pilot ports at your option. Keep the remaining port plugged.

View Arrow X

Model Numbers

A37-F-R-07-S-K-32

A37-F-R-07-S-K-3280

A37-F-R-07-S-K-32950

"C" Thd. "D" Thd. "E" Thd. "F" Thd.

Rc 1/4

1/4 BSP. Tr

SAE #4 7/16-14 UNC

M10Rc 3/8

3/8 BSP.F

SAE #6

Rc 1/2

1/2 BSP.F

SAE #10

"H" mm (IN.)

20 (.79)

19 (.75)

Page 89: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

101

PISTON PUMPS

"A"

Ser

ies

A

"A" Series Variable Displacement Piston PumpsSingle Pump, Pilot Pressure Control Type Pressure Compensator

DIMENSIONS INMILLIMETRES (INCHES)

Side Port Type

Axial Port TypePort mounting dimensions are the same as those of pressure compensator model. Refer to page 47 for port mounting dimensions.

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 47 for the dimensions of mounting bracket.

2

2

1

2

1.

2.

31.7

5(1.

2500

) Dia

.

35.3

2(1.

391)

35.1

4(1.

383)

101.

60(4

.000

0)D

ia.

101.

55(3

.998

0)

31.7

0(1.

2480

)

191(7.52)

30.2(1.189)

12(.47)

"F" Thd. "H" Deep 4 Places (Both Sides)

Suction Port 35(1.38) Dia.

Discharge Port 30(1.18) Dia.(Rear Side)

58.7

77(3

.03)

90(3

.54)13

8(5

.43)

236

(9.2

9)X 97.5

(3.8

4)

Filling Port [22(.87) Hex. Head Plug Furnished]

Drain Port "C" Thd.(Both Sides)

50.5(1.99)

9.5(.37)

40(1.57)

(1.71)

222.5(8.76)

62(2.44)

237.5(9.35)

Fully Extended262.5(10.33)

Pilot Port "PP""D" Thd.

(2.3

11)

43.5

Pilot Port "PP""E" Thd.

Flow Adj. Screw 5(.20) Hex. Soc.

DEC.

Safety Valve Pressure Adj. Screw 5(.20) Hex. Soc.

INC.

Surface of Discharge PortSurface of Suction Port

80(3

.15)

100(3.94)

13(.51)

21(.83)

46.5(1.83)

100(3.94)

232(9.13)

174(6.85)

146(5.75)

R14 (R.55)

25 (.98

)

14 (.55

)

7.97(.3138) 7.94(.3126)

120(4.72) Dia.

41(1.61)

49(1.93)

Surface of Drain Port

Flange Mtg. : A56-F-R-07-S-K-32/3280/32950

Install the pump so that the "Filling Port" is at the top.

Use either port of two pilot and drain ports at your option. Keep the remaining ports plugged.

View Arrow X

Model Numbers

A56-F-R-07-S-K-32

A56-F-R-07-S-K-3280

A56-F-R-07-S-K-32950

"C" Thd. "D" Thd. "E" Thd. "F" Thd.

Rc 1/4

1/4 BSP. Tr

SAE #4 7/16-14 UNC

M10Rc 3/8

3/8 BSP.F

SAE #6

Rc 3/4

3/4 BSP.F

SAE #12

"H" mm (IN.)

20 (.79)

19 (.75)

Page 90: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Pilot Pressure Control Type Pressure Compensator102

DIMENSIONS INMILLIMETRES (INCHES)

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 48 for the dimensions of mounting bracket.

2

52.4

26.2(1.031)

"E" Thd. 17(.67) Deep

4 Places

Discharge Port 26(1.02) Dia.

246.5(9.70)

18(.71)

16(.63)

19.5(.77)

31.7

5(1.

2500

) Dia

.

35.3

2(1.

391)

35.1

4(1.

383)

127.

00(5

.000

0)D

ia.

126.

95(4

.998

0)

31.7

0(1.

2480

)

90(3

.54)

Fully Extended351.5(13.84)

65(2.56)

62(2.44)

9.5(.37)

40(1.57)

Drain Port "C" Thd.(Both Sides) Surface of Discharge Port

Surface of Drain Port Surface of Drain Port

Surface of Suction Port95(3.74)

73(2.87)

73(2.87)

95(3.74)

13(.51)

182

(7.1

7)11

8(4

.65)

180

(7.0

9)

114.

4(4

.504

)

180.

5(7

.11)

18 (.71

)14

(.55

)

27(1.06) Dia. Spotface 4 Places

(From Rear)

35(1.38) Dia. Spotface (From Rear)

2 Places

114.4(4.504)

134(5.28)181

(7.126)211

(8.31)

7.97(.3138)7.94(.3126)

(2.0

63)

Flange Mtg. : A70-FR07S-60/6080/60950

1.

2.

3.

2

1

3

2

Pilot Port "PP1""F" Thd.

Safety Valve Pres. Adj. Screw 14(.55) Hex.

INC.

Flow Adj. Screw 17(.67) Hex.

DEC.

22(.87)

244(9.61)

Pilot Port "PP2""F" Thd.

35.7(1.406)

246.5(9.70)

"D" Thd. "H" Deep

Suction Port 38(1.50) Dia.

69.9

(2.7

52)

165.

5(6

.52)

Filling Port [22(.87) Hex. Head Plug Furnished]

Eye Bolt M10

Case Drain Port 5(.20) Hex. Soc.

316.5(14.46)

Surface of Pilot Port "PP1"

Install the pump so that the "Filling Port" is at the top.

Use either port of two pilot and drain ports at your option. Keep the remaining ports plugged.

Case drain port is available for use when draining hydraulic fluid from pump casing.

View Arrow X

View Arrow Y

Model Numbers

A70-FR07S-60

A70-FR07S-6080

A70-FR07S-60950

"C" Thd. "D" Thd. "F" Thd."E" Thd.

Rc 1/4

1/4 BSP. Tr

SAE #43/8-16 UNC

M10M12

1/2-13 UNC

Rc 3/4

3/4 BSP.F

SAE #12

"H" mm (IN.)

21 (.83)

19 (.75)

X

Y

Page 91: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

103

PISTON PUMPS

"A"

Ser

ies

A

"A" Series Variable Displacement Piston PumpsSingle Pump, Pilot Pressure Control Type Pressure Compensator

DIMENSIONS INMILLIMETRES (INCHES)

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 49 for the dimensions of mounting bracket.

1.

2.

3.

2

3

2

Model Numbers "C" Thd. "D" Thd. "E" Thd. "F" Thd.

Rc 1/4

1/4 BSP. Tr

SAE #4

Rc 3/4

3/4 BSP.F

SAE #12 7/16-14 UNC

M12A90-FR07S-60

A90-FR07S-6080

A90-FR07S-60950

H mm (IN.)

21 (.83)

19 (.75)M10

1/2-13 UNC

Pilot Port "PP1""F" Thd.

9.5(.37)

17.5(.69)

63(2.48)

13(.51)

23(.91)

95(3.74)

119.5(4.70)

Drain Port "C" Thd.(Both Sides)

30.2(1.189)

"E" Thd. "H" Deep 4 Places

Discharge Port 32(1.26) Dia.

270(10.63)

Case Drain Port 5(.20) Hex. Soc.

22(.87)23

(.91)

38.1

0(1.

5000

) Dia

.

152.

40(6

.000

0)D

ia.

152.

35(5

.998

0)

38.0

5(1.

4980

)

113

(4.4

5)

58.7

(2.3

11)

42.3

6(1.

668)

42.1

8(1.

661)

Install the pump so that the "Filling Port" is at the top.

Use either port of two pilot and drain ports at your option.Keep the remaining ports plugged.

Case drain port is available for use when draining hydraulic fluid from pump casing.

Flange Mtg. : A90-FR07S-60/6080/60950

View Arrow X

9.56(.3764)9.53(.3752)

161.6(6.362)

21.5(.85) Dia. Through 39(1.54) Dia. Spotface

(From Rear) 4Places

R22(R.87)

127

(5.0

0)19

0(7

.48)

190.

5(7

.50)

68

(2.68)

68

(2.68)

105(4.13)

105(4.13)

161.

6(6

.362

)

Surface of Discharge Port

Surface of Drain Port Surface of Drain Port

Surface of Suction Port

1

2

270(10.63)

42.9(1.689)

"D" Thd. "H" Deep 4 Places

Suction Port 48(1.89) Dia.

Filling Port [27(1.06) Hex. Head Plug Furnished]

Eye Bolt M10

Safety Valve Pres. Adj. Screw 14(.55) Hex.

INC.

Flow Adj. Screw 17(.67) Hex.

DEC.

Pilot Port "PP2""F" Thd.

Fully Extended376(14.80)

341(13.43)

268.5(10.57)

77.8

(3.0

63) 88

(3.4

6) 170

(6.6

9)

Surface of Pilot Port "PP1"

View Arrow Y

X

Y

Page 92: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Pilot Pressure Control Type Pressure Compensator104

DIMENSIONS INMILLIMETRES (INCHES)

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 50 for the dimensions of mounting bracket.

1.

2.

3.

2

2

1

Model Numbers "C" Thd. "D" Thd. "E" Thd. "F" Thd.

Rc 1/4

1/4 BSP. Tr

SAE #4

Rc 3/4

3/4 BSP.F

SAE #12 7/16-14 UNC

M12A145-FR07S-60

A145-FR07S-6080

A145-FR07S-60950

H mm (IN.)

21 (.83)

19 (.75)M10

1/2-13 UNC 20 (.79)

19 (.75)

J mm (IN.)

24(.94)

177

(6.9

7)19

2(7

.56)

Pilot Port "PP1""F" Thd.

Safety Valve Pres. Adj. Screw 14(.55) Hex. INC.Flow Adj. Screw 17(.67) Hex.

DEC.Filling Port [27(1.06) Hex. Head Plug Furnished]

Eye Bolt M10

Pilot Port "PP2""F" Thd.

290(11.42)

Suction Port 48(1.89) Dia.

"D" Thd. "H" Deep 4 Places

299.5(11.79)

42.9(1.689)

273(10.75)

21.5(.85) Dia. Through 39(1.54) Dia. Spotface

(From Rear) 4Places

R22(R.87)

141

(5.5

5)

228.6(9.000)

228.

6(9

.000

)19

8.5

(7.8

1)

15(.59)

(2.83)(2.83)7272

(4.41)112

(4.41)112

Surface of Discharge Port

Surface of Drain Port Surface of Drain Port

Surface of Suction Port

77.8

(3.0

63)

362.5(14.27)

Surface of Pilot Port "PP1"

11.14(.4386) 11.11(.4374)

Install the pump so that the "Filling Port" is at the top.

Use either port of two pilot and drain ports at your option.Keep the remaining ports plugged.

Case drain port is available for use when draining hydraulic fluid from pump casing.

Flange Mtg. : A145-FR07S-60/6080/60950

View Arrow X

View Arrow Y

2

3Case Drain Port 5(.20) Hex. Soc.

30.2(1.189)

"E" Thd. "J" Deep 4 Places

299.5(11.79)

24(.94)26

(1.02)

Discharge Port 32(1.26) Dia.

58.7

(2.3

11)

44.4

5(1.

7500

) Dia

.

49.3

9(1.

944)

49.2

1(1.

937)

152.

40(6

.000

0)D

ia.

152.

35(5

.998

0)

44.4

0(1.

7480

)

110

(4.3

3)

(2.76)70

Drain Port "C" Thd.(Both Sides)

(.51)13

(.91)23

(4.41)112Fully Extended

400.5(15.77)

(3.50)89

X

Y

Page 93: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

105

PISTON PUMPS

"A"

Ser

ies

A

"A" Series Variable Displacement Piston PumpsSingle Pump, Constant Power Control Type

A37/A56 A70/A145

Graphic Symbols

MO

A16

MO

MO

Pressure

Input Power

Output Flow

Out

put F

low

Inpu

t Pow

er

"A" Series Variable Displacement Piston Pumps – Single Pump, Constant Power Control Type

1.2.

2

1

1

1

A16-*-R-09-*-*-K-32*

Geometric Displacement

3 cm /rev (cu. in. /rev)

Minimum Adj. Flow

3 cm /rev (cu. in. /rev) Max. Max. Min.

Flange Mtg.

Foot Mtg.

Model Numbers

Operating Pres.MPa (PSI)

Shaft Speed Range r/min

Approx. Mass kg (lbs.)

29.0 (63.9) 31.2 (68.8) 600 1800 21 (3050)

21 (3050)

21 (3050)

25 (3630)

25 (3630)

15.8 (.964)

A37-*-R-09-*-*-K-32* 37.0 (81.6) 41.3 (91.1) 600 1800 36.9 (2.25)

A56-*-R-09-*-*-K-32* 44.0 (97.0) 48.3 (107) 600 1800 56.2 (3.43)

A70-*R09*S-60* 72.8 (161) 84.8 (187) 600 1800 30 (.295) 70.0 (4.27)

A145-*R09*S-60* 110 (243) 135 (298) 600 1800 83 (5.06) 145 (8.85)

Specifications

Maximum Operating Pressure of A16/A37/A56 varies according to Input Power Setting. See Model Number Designation for details.Minimum Adjustment Flow of A70/A145 is absolutely minimum flow that can be adjusted with Flow Adjustment Screw.

A90 type pump (91 cm3/rev) is available. Ask Yuken for Details.

Performance Characteristics

Page 94: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Constant Power Control Type106

1.2.

2Series Number

A16

A163 (15.8 cm /rev)

A373 (36.9 cm /rev)

A563 (56.2 cm /rev)

Mounting Direction ofRotation

DesignStd.

DesignNumber

ShaftExtension

*-FSpecify Control Pres.Input Power Setting

-R -09 -A -16M -32Control Type

Available to supply pump with anti-clockwise rotation. Consult Yuken for details.

Model Number Designation

Specify control pressure of A16/A37/A56 with lower than Maximum Operating Pressure depending on Input Power Setting.

1.

3.2. Discharge port for pump model "A16" is available only the threaded connections.

32

32

32

3Refer to

F: FlangeMtg.

L: FootMtg.

-K

K: KeyedShaft

1R: Clockwise (Normal)

09: ConstantPowerControlType

A : 3.7 kW E : 2.2 kW (5 HP) (3 HP)B : 5.5 kW F : 1.5 kW (7.5 HP) (2 HP)

7M : 7 MPa(1020 PSI)

10.5M : 10.5 MPa(1520 PSI)

14M : 14 MPa(2030 PSI)

16M : 16 MPa(2320 PSI)

17.5M : 17.5 MPa(2540 PSI)

21M : 21 MPa(3050 PSI)

Viewed fromShaft End

A : 3.7 kW C : 7.5 kW (5 HP) (10 HP)B : 5.5 kW D : 11 kW (7.5 HP) (15 HP)

A : 3.7 kW E : 15 kW (5 HP) (20 HP)B : 5.5 kW F : 18.5 kW (7.5 HP) (25 HP)C : 7.5 kW G : 22 kW (10 HP) (30 HP)D : 11 kW (15 HP)

A16/A37/A56

Series Number

A70

A703 (70 cm /rev)

A1453 (145 cm /rev)

Mounting Direction ofRotation

DesignStd.

DesignNumber

*-FDirection of PortInput Power Setting

R 09 A S -60Control Type

60

603

Refer to

F: FlangeMtg.

L: FootMtg.

1R: Clockwise (Normal)

09: ConstantPowerControlType

A : 15 kW E : 22 kW (20 HP) (30 HP)B : 18.5 kW F : 30 kW (25 HP) (40 HP)

S: Side Port

Viewed fromShaft End A : 15 kW E : 37 kW

(20 HP) (50 HP)B : 18.5 kW F : 45 kW (20 HP) (60 HP)C : 22 kW G : 55 kW (30 HP) (75 HP)D : 30 kW H : 75 kW (40 HP) (100 HP)

A70/A145

Model

PerformanceCharacteristics

A37

A56

A16 10.5 (1520)

1.5 kW (2 HP)

16 (2320)

2.2 kW (3 HP)

16 (2320)

10.5 (1520)

21 (3050)

3.7 kW (5 HP)

21 (3050)

14 (2030)

21 (3050)

5.5 kW (7.5 HP)

21 (3050)

17.5 (2540)

7.5 kW (10 HP)

Maximum Operating PressureMPa (PSI)

21 (3050)

21 (3050)

11 kW (15 HP)

21 (3050)

15 kW (20 HP)

21 (3050)

18.5 kW (25 HP)

21 (3050)

22 kW(30 HP)

Suction

Pump ModelNumbers

Name of PortJapaneseStd. "JIS"

JapaneseStd. "JIS" &

EuropeanDesign Std.

JapaneseStd. "JIS" &

EuropeanDesign Std.

EuropeanDesign Std.

N. AmeraicanDesign

Standard

N. AmeraicanDesign

Standard

N. AmeraicanDesign

Standard

F5-06-C-1090

Threaded Connection Socket Welding Butt Welding

Pipe Flange Kit Numbers

A16-*-R-09F5-06-B-10F5-06-A-10 F5-06-B-1090 F5-06-C-10F5-06-A-1080

Discharge

Suction F5-10-C-1090A37-*-R-09 F5-10-B-10F5-10-A-10 F5-10-B-1090 F5-10-C-10F5-10-A-1080

Discharge F5-06-C-1090A56-*-R-09 F5-06-B-10F5-06-A-10 F5-06-B-1090 F5-06-C-10F5-06-A-1080

Suction F5-12-C-1090A70-*-R-09

F5-12-B-10F5-12-A-10 F5-12-B-1090 F5-12-C-10F5-12-A-1080

Discharge F5-08-C-1090F5-08-B-10F5-08-A-10 F5-08-B-1090 F5-08-C-10F5-08-A-1080

Suction F5-16-C-1090A145-*-R-09

F5-16-B-10F5-16-A-10 F5-16-B-1090 F5-16-C-10F5-16-A-1080

Discharge F5-10-C-1090F5-10-B-10F5-10-A-10 F5-10-B-1090 F5-10-C-10F5-10-A-1080

Pipe Flange KitsPipe flange kits are available. When ordering, specify the kit number from the table below.

2

3 3 3

22 2 2 2 2

In case of using socket welding flanges, there is a case where the operating pressure should be set lower than the normal because of strength of hat flanges. Therefore, please pay cautious attention to the operating pressure when the socket welding flanges are used.

As dimensions of the pipe flange mounting surface are conformed to SAE 4 Bolt Split Flange (Standard Pressure Series), pipe flanges conforming to the SAE Standards can be used.

Detail of the pipe flange kits are shown on page 824.

3. Design Standards: None 80

Japanese Standard "JIS" European Design Standard

........... ...............

950 N. American Design Standard............

1

Page 95: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

107

PISTON PUMPS

"A"

Ser

ies

A

"A" Series Variable Displacement Piston PumpsSingle Pump, Constant Power Control Type

Typical Performance Characteristics at 1500 r/min

A70

A145

0 10 20 30

0

5

10

15

20

25

30

35

40

30 kW

22 kW

18.5 kW

15 kW

Output Flow

30 kW

22 kW

18.5 kW

15 kW

0 10 20 300

10

20

30

40

50

60

70

75

55 kW

45 kW

37 kW

30 kW

22 kW

37 kW

30 kW

22 kW

45 kW

55 kWInput PowerOutput Flow

50

100

200

150

50

40

30

20

10

0 0

40

50

30

20

10

0O

utpu

t Flo

w

Inpu

t Pow

er

L/min kW HP

Pressure0 1000 2000 3000 4000

MPa

PSI

100

300

200

70

60

50

40

30

20

10

0 0

40

50

30

20

10

90

100

80

70

60

0

Out

put F

low

Inpu

t Pow

er

U.S.GPM

L/min kW HP

Pressure0 1000 2000 3000 4000

MPa

PSI

A16

A37

A56

0 3.5 7 10.5 14 17.5 21

10

20

308

6

4

2

0

1

00

2

3

4

5

6 8

6

4

2

0

Pressure

Out

put F

low

Inpu

t Pow

er

5.5 kW

3.7 kW

2.2 kW

Output Flow

1.5 kW

10

20

30

40

50

60

2

0 0

4

6

8

10

12 11 kW

7.5 kW

5.5 kW

3.7 kW

Input Power

0 3.5 7 10.5 14 17.5 21

0

00

10

20

24

20

40

60

80

100

1205.5 kW 7.5 kW11 kW 15 kW 18.5 kW22 kW

3.7 kW

Output Flow

3.5 7 10.5 14 17.5 21

(500) (1000) (1500) (2000) (2500) (3000)MPa(PSI)

Input Power

L/min

kW HP

12

15

9

6

3

0

16

10

8

4

0

Pressure

Out

put F

low

Inpu

t Pow

er

(500) (1000) (1500) (2000) (2500) (3000)MPa(PSI)

L/min HPkW

HPkW

20

25

30

15

10

5

0

32

24

16

8

0

Pressure

Out

put F

low

Inpu

t Pow

er

(500) (1000) (1500) (2000) (2500) (3000)MPa(PSI)

L/min

Output Flow

Input Power

U.S.GPM

U.S.GPM

U.S.GPM

U.S.GPM

Input Power

Page 96: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Constant Power Control Type108

DIMENSIONS INMILLIMETRES (INCHES)

Flange Mtg. : A16-F-R-09-*-K-32/3280/32950

1

1. 2.3.

Model Numbers "C" Thd.

Rc 3/8

3/8 BSP.F

SAE #8

A16-F-R-09-*-K-32

A16-F-R-09-*-K-3280

A16-F-R-09-*-K-32950

"E" Thd.

M10

3/8-16 UNC

"D" Thd.

G 1/2

1/2 BSP.F

SAE #8

Detail of Discharge Port[For Japanese Standard]

Install the pump so that the "Filling Port" is at the top.Do not touch the screw because it is adjusted at the time of shipment.

View Arrow X

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 45 for the dimensions of mounting bracket.

X

18 (.71

)

130(5.12)106

(4.17)

Fully Extended245

(9.65)63.5

(2.50)

47.6

(1.8

74)

94 87

5632.5

Surface of Suction Port

257(10.12)

(9.02)

(1.75)

(6.77)

44.5

229

172

78(3

.07)

Fully

Ext

ende

d11

1(4

.37)

252(9.92)

12(.47)

96(3

.78)

19.0

5(.7

500)

Dia

.19

.02(

.748

8)21

.24(

.836

)21

.08(

.830

)82

.55(

3.25

00) D

ia.

82.5

0(3.

2480

)

25(.98)

12 (.47

)

4.79(.1886)4.76(.1874)

17(.67)

2.5(.098)

0.5(.020)

34(1

.34)

Dia

.

22.6

(.89

) D

ia.

22.2(.874)

(1.28) (2.20)

(3.70) (3.43)

(.26)6.5

15°

Pressure Adj. Screw

Input Power Setteing Screw

Discharge Port"D" Thd.

Suction Port19(.75) Dia.

"E" Thd. 19(.75) Deep4 Places

Filling Port 2

3

3

[22(.87) Hex. Head Plug Furnished]

Drain Port"C" Thd.

R12(R.47)

95(3.74) Dia.

G1/2 Thd.

(1.04)26.5

Page 97: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

109

PISTON PUMPS

"A"

Ser

ies

A

"A" Series Variable Displacement Piston PumpsSingle Pump, Constant Power Control Type

DIMENSIONS INMILLIMETRES (INCHES)

Model Numbers "C" Thd. "D" Thd. "E" Thd. "F" Thd.

Rc 1/2

1/2 BSP.F

SAE #10 3/8-16 UNC

M10A37-F-R-09-*-K-32

A37-F-R-09-*-K-3280

A37-F-R-09-*-K-32950

"H" mm (IN.)

20 (.79)

19 (.75)Rc 1/4

1/4 BSP.Tr

SAE #4 7/16-14 UNC

M10

14(.55) Dia. Through 28(1.10) Dia. Spotface 4 Places

14 (.55

)15 (.59

)10

2(4

.02)

120(4.72)

(3.740)95

(3.740)95

(9.06)230

3(.1

2)

60(2.362) (2.91)

74

(4.53)115

(1.54)39

X

View Arrow X

Foot Mtg. : A37-L-R-09-*-K-32/3280/32950

Flange Mtg. : A37-F-R-09-*-K-32/3280/32950

For other dimensions, refer to "Flange Mtg.".

1.2.

Install the pump so that the "Filling Port" is at the top.Do not touch the screw because it is adjusted at the time of shipment.

Fully Extended141

(5.55)

30.2 22.2(1.189) (.874)

36 42(1.42) (1.65)

58.7

(2.3

11)

47.6

(1.8

74)

Fully

Ext

ende

d15

5(6

.10)

90(3

.54)

7(.

28)

59(2.32)

30

282

228

(11.10)

(8.98)

195(7.68)

12(.47)

32(1.18) (1.26)

9.5(.37)

105

(4.1

3)

22.2

3(.8

752)

Dia

.22

.20(

.874

0)25

.01(

.985

)24

.85(

.978

)10

1.60

(4.0

000)

Dia

.10

1.55

(3.9

980)

174

146

(6.85)

(5.75)

101 101(3.98) (3.98)

25 (.98

)

14 (.55

)

6.38(.2512)6.35(.2500)

Pressure Adj. Screw 2

2

1

Input Power Setting Screw

Discharge Port20(.79) Dia.

Suction Port30(1.18) Dia.

"E" Thd. "H" Deep4 Places

"F" Thd. 19(.75) Deep4 Places

Filing Port[22(.87) Hex. Head Plug Furnished]

Drain Port "C" Thd.

Pressure Gauge Connectionfor Pump Discharge Pressure

"D" Thd.

Surface of Suction Port

120(4.72) Dia.

R14(R.55)

Page 98: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Constant Power Control Type110

DIMENSIONS INMILLIMETRES (INCHES)

Model Numbers "C" Thd. "D" Thd. "E" Thd. "F" Thd.

Rc 3/4

3/4 BSP.F

SAE #12 3/8-16 UNC

M10A56-F-R-09-*-K-32

A56-F-R-09-*-K-3280

A56-F-R-09-*-K-32950

"H" mm (IN.)

20 (.79)

19 (.75)Rc 1/4

1/4 BSP.Tr

SAE #4 7/16-14 UNC

M10

14(.55) Dia. Through 28(1.10) Dia. Spotface 4 Places

60(2.362)(3.03)

77

(4.53)115

(1.65)42

120(4.72)

(3.740)95

(3.740)95

(9.06)230

14 (.55

)15 (.59

)10

2(4

.02)

3(.1

2)

Flange Mtg. : A56-F-R-09-*-K-32/3280/32950

2. Use either port of two Keep the remaining port plugged.

View Arrow X

Foot Mtg. : A56-L-R-09-*-K-32/3280/32950

For other dimensions, refer to "Flange Mtg.".

1.

3.

Install the pump so that the "Filling Port" is at the top.

Do not touch the screw because it is adjusted at the time of shipment.

drain ports at your option.

62

9.5

50.5(2.44)(1.99)

(.37)

294

240

207

12

(11.57)

(9.45)

(8.15)

(.47)

40(1.57)

9816

1

90 7

(3.8

6)(6

.34)

(3.5

4)

(.28

)

31.7

5(1.

2500

) Dia

.31

.70(

1.24

80)

35.3

2(1.

391)

35.1

4(1.

383)

101.

60(4

.000

0) D

ia.

101.

55(3

.998

0)

41 49(1.61) (1.93)

174

146

(6.85)232

(9.13)

(5.75)

25

14

(.98

)

(.55

)

7.97(.3138)7.94(.3126)

4438

141Fully Extended

30.2 22.2

(1.73)(1.50)

(5.55)

(1.189) (.874)

47.6

58.7

(2.3

11)

X

Filling Port[22(.87) Hex. Head Plug Furnished]

Drain Port 2

3

1

"C" Thd. (Both Sides)

Surface of Suction Port

Pressure Gauge Connectionfor Pump Discharge Pressure

"D" Thd.

R14(R.55)

Surface of Drain Port

Surface of Drain Port

Pressure Adj. Screw

Discharge Port20(.79) Dia.

"F" Thd. "H" Deep4 Places

120(4.72) Dia.

43.5(1.71)

3Input Power Setting Screw

Suction Port35(1.38) Dia.

"E" Thd. "H" Deep4 Places

(1.8

74)

Page 99: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

111

PISTON PUMPS

"A"

Ser

ies

A

"A" Series Variable Displacement Piston PumpsSingle Pump, Constant Power Control Type

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 48 for the dimensions of mounting bracket.

DIMENSIONS INMILLIMETRES (INCHES)

Flange Mtg. : A70-FR09*S-60/6080/60950

Model Numbers "C" Thd. "D" Thd. "E" Thd.

Rc 3/4

3/4 BSP.F

SAE #12 1/2-13 UNC

A70-FR09*S-60

A70-FR09*S-6080

A70-FR09*S-60950

F mm (IN.)

21 (.83)

19 (.75)M12

3/8-16 UNC

M10

View Arrow Y

View Arrow X

212.5(8.37)

26.2

(1.0

31)

Fully Extended351.5 62

(13.84) (2.44)

40(1.57)

90(3

.54)

18

65(2.56)

52.4(.71)(2.063)

31.7

5(1.

2500

) D

ia.

31.7

0(1.

2480

) 35

.32(

1.39

1)35

.14(

1.38

3)

127.

00(5

.000

0) D

ia.

126.

95(4

.998

0)

188

180.

5(7

.11)

182

95

7373(7.40) (3.74)

(2.87)(2.87)

118

114.4

134

181

211

(4.504)

(5.28)

(7.126)

(8.31)

(7.1

7)(4

.65)

7.97(.3138)7.94(.3126)

69.9

(2.7

52)

35.7

246.5(1.406)

(9.70)

19.5(.77)9.5

(.37)

18 (.71

)14 (.55

)

180

114.

4

(7.0

9)

(4.5

04)

Y

X

"E" Thd. 17(.67) Deep4 Places

3

2

Discharge Port18(.71) Dia.

Input Power Setting Screw "A"3

1

Input Power Setting Screw "B"

27(1.06) Dia. Spotface(From Rear) 4 places

35(1.38) Dia. Spotface(From Rear) 2 places

Surface of Suction Port

Surface of Drain PortSurface of Drain Port

Eye BoltM10

Suction Port38(1.50) Dia.

"D" Thd. "F" Deep4 Places

Filling Port[22(.87) Hex. Head Plug Furnished]

Flow Adj. Screw17(.67) Hex.

Safety Valve PressureAdj. Screw

14(.55) Hex. INC.

DEC.

Drain Port"C" Thd. (Both Sides)

4Case Drain Port5(.20) Hex. Soc.

2. Use either port of two drain ports at your option.Keep the remaining port plugged.

1.

3.

Install the pump so that the "Filling Port" is at the top.

Do not touch the screw because it is adjusted at the time of shipment.4. Case drain port is available for use when draining hydraulic fluid from pump casing.

Page 100: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsSingle Pump, Constant Power Control Type112

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 50 for the dimensions of mounting bracket.

DIMENSIONS INMILLIMETRES (INCHES)

Flange Mtg. : A145-FR09*S-60/6080/60950

YUKEN

Model Numbers "C" Thd. "D" Thd.

Rc 3/4

3/4 BSP.F

SAE #12

A145-FR09*S-60

A145-FR09*S-6080

A145-FR09*S-60950

F mm (IN.)

21 (.83)

19 (.75)

20 (.79)

19 (.75)

H mm (IN.)

1/2-13 UNC

M12

"E" Thd.

7/16-14 UNC

M10

2. Use either port of two drain ports at your option.Keep the remaining port plugged.

1.

3.

Install the pump so that the "Filling Port" is at the top.

Do not touch the screw because it is adjusted at the time of shipment.4. Case drain port is available for use when draining hydraulic fluid from

pump casing.

Drain Port"C" Thd. (Both Sides)

2

58.7

30.2

(1.1

89)

299.5

24(2.311)

(11.79)

(.94)

70

110

(4.3

3)

57(2

.24)

Fully Extended397

89

112

44.4

5(1.

7500

) D

ia.

44.4

0(1.

7480

)49

.39(

1.99

4)49

.21(

1.93

7)15

2.40

(6.0

000)

Dia

.15

2.35

(5.9

980)

23

(2.76)

(15.63)

(3.50)

(4.41)

(.91)

214

Fully

Ext

ende

d24

6(9

.69)

273

228.6

(10.75)

(9.000)

141

198.

5

112(8.43) (4.41)

Surface of Drain Port Surface of Drain Port

Surface of Discharge Port Surface of Suction Port

228.

6

(5.5

5)(7

.81)

(9.0

00)

299.5

42.9

(11.79)

(1.689)

77.8

(3.0

63)

72 72(2.83)(2.83)

X

Input Power Setting Screw "A"

Input Power Setting Screw "B" 3

3

4

1

Case Drain Port5(.20) Hex. Soc.

"E" Thd. "H" Deep4 Places

R22(R.87)

Flow Adj. Screw17(.67) Hex.

"D" Thd. "F" Deep4 Places

Suction Port48(1.89) Dia.

Filling Port[27(1.06) Hex. Head Plug Furnished]

Eye BoltM10 Pressure Adj. Screw

17(.67) Hex.

INC.

DEC.

11.14(.4386)11.11(.4374)

21.5(.85) Dia. Through39(1.54) Dia. Spotface

(From Rear)4 Places

View Arrow X

Discharge Port32(1.26) Dia.

13(.51)

Page 101: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

113

PISTON PUMPS

"A"

Ser

ies

A

"A" Series Variable Displacement Piston PumpsDouble Pumps, Pressure Compensator Type

"A" Series Variable Displacement Piston Pumps – Double Pumps, Pressure Compensator Type

Outboard Pump

Inboard Pump

Model Numbers

Geometric Displacement

3 cm /rev (cu.in./rev)

Min. Adj. Flow

3 cm /rev (cu.in./rev)

Operating Pressure MPa (PSI)

Shaft Speed Range r/min

Approx. Mass kg (lbs.)

Max.

1800

1800

1800

1800

1800

1800

1800

1800

1800

1800

1800

1800

1800

1800

1800

1800

1800

1800

Min.Foot Mtg.

Flange Mtg.

600

600

600

600

600

600

600

600

600

600

600

600

600

600

600

600

600

600

IntermittentRated

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

A1616-*R01*01**K-32*

A22145-*R01*01**-60*

16 (2320)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

16 (2320)

25 (3630)

16 (2320)

25 (3630)

16 (2320)

25 (3630)

16 (2320)

25 (3630)

16 (2320)

25 (3630)

16 (2320)

25 (3630)

16 (2320)

25 (3630)

16 (2320)

25 (3630)

16 (2320)

25 (3630)

16 (2320)

25 (3630)

16 (2320)

25 (3630)

A1622-*R01*01**K-32*

A2222-*R01*01**K-32*

A1637-*R01*01**K-32*

A2237-*R01*01**K-32*

A1656-*R01*01**K-32*

A2256-*R01*01**K-32*

A1670-*R01*01**-60*

A2270-*R01*01**-60*

A3770-*R01*01**-60*

A1690-*R01*01**-60*

A2290-*R01*01**-60*

A3790-*R01*01**-60*

A5690-*R01*01**-60*

A16145-*R01*01**-60*

A37145-*R01*01**-60*

A56145-*R01*01**-60*

35.5 (98.3)

35.5 (98.3)

50 (110)

50 (110)

54.5 (120)

54.5 (120)

77.5 (171)

77.5 (171)

86.5 (191)

88 (194)

88 (194)

100.5 (222)

109 (240)

109 (240)

121.5 (268)

128.5 (283)

107.5 (237)

35.5 (98.3)

37.7 (83.1)

37.7 (83.1)

37.7 (83.1)

54.3 (120)

54.3 (120)

58.8 (130)

58.8 (130)

89.5 (197)

89.5 (197)

98.5 (217)

108.5 (239)

108.5 (239)

121 (267)

128 (282)

134 (295)

134 (295)

146.5 (323)

153.5 (338)

21 (3050)

21 (3050)

21 (3050)

16 (2320)

16 (2320)

16 (2320)

21 (3050)

21 (3050)

16 (2320)

21 (3050)

21 (3050)

21 (3050)

16 (2320)

21 (3050)

21 (3050)

28 (4060)

16 (2320)

28 (4060)

21 (3050)

28 (4060)

21 (3050)

28 (4060)

16 (2320)

28 (4060)

21 (3050)

28 (4060)

21 (3050)

28 (4060)

21 (3050)

28 (4060)

16 (2320)

28 (4060)

21 (3050)

28 (4060)

21 (3050)

28 (4060)

4 (.244)

4 (.244)

4 (.244)

6 (.366)

6 (.366)

6 (.366)

4 (.244)

10 (.610)

6 (.366)

10 (.610)

4 (.244)

12 (.732)

6 (.366)

12 (.732)

4 (.244)

30 (1.831)

6 (.366)

30 (1.831)

10 (.610)

30 (1.831)

4 (.244)

56 (3.42)

6 (.366)

56 (3.42)

10 (.610)

56 (3.42)

12 (.732)

56 (3.42)

4 (.244)

83 (5.06)

6 (.366)

83 (5.06)

10 (.610)

83 (5.06)

12 (.732)

83 (5.06)

15.8 (.964)

15.8 (.964)

15.8 (.964)

22.2 (1.355)

22.2 (1.355)

22.2 (1.355)

15.8 (.964)

36.9 (2.25)

22.2 (1.355)

36.9 (2.25)

15.8 (.964)

56.2 (3.43)

22.2 (1.355)

56.2 (3.43)

15.8 (.964)

70.0 (4.27)

22.2 (1.355)

70.0 (4.27)

36.9 (2.25)

70.0 (4.27)

15.8 (.964)

91.0 (5.55)

22.2 (1.355)

91.0 (5.55)

36.9 (2.25)

91.0 (5.55)

56.2 (3.43)

91.0 (5.55)

15.8 (.964)

145 (8.85)

22.2 (1.355)

145 (8.85)

36.9 (2.25)

145 (8.85)

56.2 (3.43)

145 (8.85)

Specifications

Graphic Symbol

Consult Yuken when detailed material such as dimensions figures is required.

M

O

M

O

Page 102: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Variable Displacement Piston PumpsDouble Pumps, Pressure Compensator Type114

2

1

2.1.

A1616 (15.8/15.8

3 cm /rev)

Refer to

B: C: H:

1.2- 7 (170-1020) 1.2-16 (170-2320) 1.2-21 (170-3050)

B: C: H:

1.2- 7 (170-1020) 1.2-16 (170-2320) 1.2-21 (170-3050)

F:Flange Mtg.

Viewed from Shaft End

01:Pressure Compen-sator Type

01:Pressure Compen-sator Type

S:Side Port

None:Axial Port

K:Keyed Shaft

32

32

32

32

32

32

32

60

60

60

60

60

60

60

60

60

60

60

None:Keyed Shaft

A1622 (15.8/22.2

3 cm /rev)

A1637 (15.8/36.9

3 cm /rev)

A1656 (15.8/56.2

3 cm /rev)

A2256 (22.2/56.2

3 cm /rev)

A1670 (15.8/70.0

3 cm /rev)

A2270 (22.2/70.0

3 cm /rev)

A3770 (36.9/70.0

3 cm /rev)

A1690 (15.8/91.0

3 cm /rev)

A2290 (22.2/91.0

3 cm /rev)

A3790 (36.9/91.0

3 cm /rev)

A5690 (56.2/91.0

3 cm /rev)

A16145 (15.8/145

3 cm /rev)

A22145 (22.2/145

3 cm /rev)

A37145 (36.9/145

3 cm /rev)

A2237 (22.2/36.9

3 cm /rev)

A56145 (56.2/145

3 cm /rev)

A2222 (22.2/22.2

3 cm /rev)

L:Foot Mtg.

R:Clockwise (Normal)

B: C:

1.2- 7 (170-1020) 1.2-16 (170-2320)

B: C: H:

1.2- 7 (170-1020) 1.2-16 (170-2320) 1.2-21 (170-3050)

B: C:

1.2- 7 (170-1020) 1.2-16 (170-2320)

B: C: H:

1.2- 7 (170-1020) 1.2-16 (170-2320) 1.2-21 (170-3050)

B: C:

1.2- 7 (170-1020) 1.2-16 (170-2320)

B: C: H:

1.2- 7 (170-1020) 1.2-16 (170-2320) 1.2-21 (170-3050)

B: C:

1.2- 7 (170-1020) 1.2-16 (170-2320)

B: C: H:

1.2- 7 (170-1020) 1.2-16 (170-2320) 1.2-21 (170-3050)

B: C:

1.2- 7 (170-1020) 1.2-16 (170-2320)

B: C:

1.2- 7 (170-1020) 1.2-16 (170-2320)

B: C: H:

1.2- 7 (170-1020) 1.2-16 (170-2320) 1.2-21 (170-3050)

B: C: H:

1.2- 7 (170-1020) 1.2-16 (170-2320) 1.2-21 (170-3050)

B: C:

1.2- 7 (170-1020) 1.2-16 (170-2320)

B: C: H:

1.2- 7 (170-1020) 1.2-16 (170-2320) 1.2-21 (170-3050)

B: C: H: K:

1.2- 7 (170-1020) 1.5-16 (220-2320) 1.8-21 (260-3050) 2.0-28 (290-4060)

A1637 -F R01 C C01

S K -32

Series Number

MountingDirection

of Rotation

Port Position of Outboard

Pump

Shaft Extension

Design Std.

Design Number

Pres. Adj. Range MPa(PSI)

Pres. Adj. Range MPa(PSI)

Control Type

Control Type

Outboard Pump Inboard Pump (Driven End)*

Model Number Designation

Design Standards: None 80 950

Japanese Standard "JIS" European Design Standard N. American Design Standard

........... ............... .............

Available to supply pump with anti-clockwise rotation. Consult Yuken for details.

Page 103: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

115

PISTON PUMPS

"A"

Ser

ies

A

"A" Series Piston PumpsVariable / Fixed Double Pumps

"A" Series Piston Pumps – Variable / Fixed Double Pumps

2.

1.

2

1

32

32

32

32

60

60

60

60

60

60

Refer to

A16R1 -F R01 B A

K -32

Series Number

MountingDirection

of Rotation

Shaft Extension

Design Std.

Design Number

Pres. Adj. Range MPa(PSI)

Control Type

Outboard PumpInboard Pump (Driven End)*

Nominal Displacement

3 cm /rev

Suction Port

Position

Discharge Port

Position

A-23

A16R1

A22R1

A37R1

A56R1

A90R1

A70R1

A70R2

A145R1

A145R2

A90R2

B: C: H:

1.2 - 7 (170 - 1020) 1.2 - 16 (170 - 2320) 1.2 - 21 (170 - 3050)

B: C:

1.2 - 7 (170 - 1020) 1.2 - 16 (170 - 2320)

B: C: H: K:

1.2 - 7 (170 - 1020) 1.5 - 16 (220 - 2320) 1.8 - 21 (260 - 3050) 2.0 - 28 (290 - 4060)

B: C: H:

1.2 - 7 (170 - 1020) 1.2 - 16 (170 - 2320) 1.2 - 21 (170 - 3050)

B: C: H: K:

1.2 - 7 (170 - 1020) 1.5 - 16 (220 - 2320) 1.8 - 21 (260 - 3050) 2.0 - 28 (290 - 4060)

F:Flange Mtg.

K:Keyed Shaft

None:Keyed Shaft

L:Foot Mtg.

Viewed from Shaft End

01:Pressure Compensator Type

R:Clockwise (Normal)

Viewed from Shaft End

A: UpA: Up

6, 10, 14, 19, 25,

8 12 17 23 31

41,53,65

47 59

M

O

Design Standards: None 80 950

Japanese Standard "JIS" European Design Standard N. American Design Standard

........... ...............

.............

Available to supply pump with anti-clockwise rotation. Consult Yuken for details.

Model Number Designation

Graphic Symbol

Consult Yuken when detailed material such as dimensions figures is required.

Page 104: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A" Series Piston PumpsVariable / Fixed Double Pumps116

Outboard Pump

Inboard Pump

Model Numbers

Geometric Displacement

3 cm /rev (cu.in./rev)

Operating Pressure MPa (PSI)

Shaft Speed Range r/min

Approx. Mass kg (lbs.)

Max.

1800

1800

1800

1800

1800

1800

1800

1800

1800

1800

Min.Foot Mtg.

Flange Mtg.

750

750

750

750

750

750

750

600

600

600

IntermittentRated

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

Outboard Pump

Inboard Pump

A16R1-*R01*-*AAK-32*

A22R1-*R01*-*AAK-32*

A37R1-*R01*-*AAK-32*

A56R1-*R01*-*AAK-32*

A70R1-*R01*-*AA-60*

A90R1-*R01*-*AA-60*

A145R1-*R01*-*AA-60*

A70R2-*R01*-*AA-60*

A90R2-*R01*-*AA-60*

A145R2-*R01*-*AA-60*

28.8 (63.5)

31.0 (68.4)

39 (86.0)

43.3 (95.5)

47 (104)

51.3 (113)

66 (146)

78 (172)

82 (181)

105 (232)

102 (225)

129 (284)

72.5 (160)

84.5 (186)

91.5 (202)

112 (247)

112 (247)

137 (302)

15.8 (.964)

Refer to the following table

Refer to the following table

Refer to the following table

16 (2320) 21 (3050)

16 (2320)22.2 (1.355)

16 (2320)36.9 (2.25)

16 (2320)56.2 (3.43)

25 (3630)70.0 (4.27)

25 (3630)91.0 (5.55)

145 (8.85)

145 (8.85)

70.0 (4.27)

91.0 (5.55)

25 (3630)

25 (3630)

25 (3630)

25 (3630)

21 (3050)

16 (2320)

21 (3050)

28 (4060)

28 (4060)

28 (4060)

28 (4060)

28 (4060)

28 (4060)

Refer to the following table

Refer to the following table

Refer to the following table

Refer to the following table

Refer to the following table

Refer to the following table

Refer to the following table

28.8 (63.5)

31.0 (68.4)

Specifications

Geometric Displacement

3 cm /rev (cu.in./rev)

Model Numbers

Max Pres. MPa (PSI)

Anti-Wear Type

R & O Type

A*R1-*R01*-6

A*R1-*R01*-8

A*R1-*R01*-10

5.8 (.354)

8.0 (.488)

9.4 (.574)

12.2 (.744)

13.7 (.836)

16.6 (1.013)

18.6 (1.135)

22.7 (1.385)

25.3 (1.544)

31.0 (1.892)

26.6 (1.623)

33.3 (2.03)

41.3 (2.52)

47.2 (2.88)

52.5 (3.20)

58.2 (3.55)

64.7 (3.95)

21 (3050)

21 (3050)

17.5 (2540)

15 (2180)

12 (1740)

21 (3050)

20 (2900)

18 (2610)

14 (2030)

16 (2320)

14 (2030)

16 (2320)

15 (2180)

12 (1740)

A*R1-*R01*-12

A*R1-*R01*-14

A*R1-*R01*-17

A*R1-*R01*-19

A*R1-*R01*-23

A*R1-*R01*-25

A*R1-*R01*-31

A*R2-*R01*-33

A*R2-*R01*-41

A*R2-*R01*-47

A*R2-*R01*-53

A*R2-*R01** * *

-59

A R2- R01 -65

A*R2-*R01*-26

Geometric Displacement and Max. Pressure ofOutboard Pump

Page 105: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

120

GraphicSymbol

Page

MaximumOperatingPressure

MPa (PSI)

Pump Type

Single Pump

1 2 5 10 20 50 100 200 300

Geometric Displacement

3 cm /rev

cu. in./rev.1 .2 .5 1 2 5 10 15

35(5080)M

O

"A3H" Series Variable Displacement Piston Pumps

A3H16

A3H37

A3H56

A3H71

A3H100

A3H145

A3H180

Three control types are available such as pressure compensator type. Refer to page 121.

Load Sensing TypeConstant Power (Torque)Control Type

Pressure Compensator Type

" " Series Variable Displacement Piston Pumps

117

Page 106: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston Pumps118

Hydraulic Fluids

Hydraulic Fluids Control of ContaminationUse petroleum base oils such as anti-wear type hydraulic oils or R & O (Rust and Oxidation inhibitor) type hydraulic oils equivalent to ISO VG-32 or 46.The recommended viscosity range is from 20 to 400 mm2/s (98 to 1800 SSU) and temperature range is from 0 to 60°C (32 to 140°F), both of which have to be satisfied for the use of the above hydraulic oils.

Due caution must be paid to maintaining control over contamination of the operating oil which can otherwise lead to breakdowns and shorten the life of the unit. Please main-tain the degree of contamination within NAS Grade 10.The suction port must be equipped with at least a 100 µm (150 mesh) reservoir type filter and the return line must have a line filter of under 10 µm.

Instructions

Mounting Drain PipingWhen installing the pump the filling port should be positioned upwards.

Alignment of ShaftEmploy a flexible coupling whenever possible, and avoid any stress from bending or thrust.Maximum permissible misalignment is less than 0.1 mm (.0039 inches) TIR and maximum permissible misangular is less than 0.2°.

Suction PressurePermissible suction pressure at suction port of the pump is between -16.7 and +50 kPa (5 in.Hg Vacuum and 7 PSIG). In case of the speed is over 1800 r/min, adjust the pressure 0 to +50 kPa (0 to 7 PSIG).For piping to the suction port, use the pipes of the same diametre as that of the specified pipe flange to be used.Make sure that the height of the pump suction port is whithin one metre (3.3ft.) from the oil level in the reservoir.

Hints on PipingWhen using steel pipes for the suction or discharge ports, excessive load from the piping to the pump generates excessive noise.Whenever there is fear of excessive load, please use rubber hoses.

Suction PipingIn case the pump is installed above the oil level, the suction piping and suction line filter should be located lower than the pump position to prevent air in the suction line.

Install drain piping according to the chart and ensure that pressure within the pump housing should be maintained at a normal pressure of less than 0.1 MPa (15 PSI) and surge pressure of less than 0.5 MPa (70 PSI).Length of piping should be less than 1 m (3.3 ft.), and the pipe end should be submerged in oil.

[Recommended Drain Piping Size]

Model Volume cm3(in.3)

[Volume of Pre-fill Oil Required]

Safety ValveWhen delivery line is blocked suddenly, surge pressure is occurred so a safety valve should be set in the circuit to eliminate any damage on equipment and piping.

Bleeding AirIt may be necessary to bleed air from pump case and outlet line to remove causes of vibration.

StartingBefore first staring, fill pump case with clean operating oil via the fill port.In order to avoid air blockage when first starting, adjust the control valves so that the discharged oil from the pump is returned direct to the tank or the actuator moves in a free load.

A3H16 400 (24.4)

A3H37 700 (42.7)

A3H56 900 (54.9)

A3H71 1300 (79.3)

A3H100 1700 (104)

A3H145 2400 (146)

A3H180 3200 (195)

ModelFitting Size

N.AmericanDesign Std.

Japnese Std. "JIS" &European Design Std.

SAE #101/2

Inside Dia.of Pipe

A3H16A3H37 [Inside Dia. 12 mm (.47 in.) or more]

12 mm(.47 in.)or more

SAE #123/4A3H56|

A3H180 [Inside Dia. 16 mm (.63 in.) or more]

19 mm(.75 in.)or more

Page 107: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

119

PISTON PUMPS

"A3H" Series Variable Displacement Piston Pumps

"A3H

"S

erie

s

ASetting Discharge Pressure and DeliveryAt the time of shipment, the unit has been preset to maximum delivery and minimum discharge pressure.Adjust the preset delivery and pressure to meet your system requirements.

Turning the adjustment screw clockwise, increases pressure.

Model NumbersAdjustment Volume

MPa (PSI)

5.5 (780)

6.3 (915)

5.7 (830)

A3H16/A3H37/A3H56-01

A3H71/A3H100/A3H145-01

A3H180-01

Adjustment of Discharge Pressure

Volume adjusted by each full turn of the pressureadjustment screw

Turning the flow adjustment screw clockwise, decreases delivery.

Model Numbers

1.4 (.085)

3.3 (.201)

4.2 (.256)

4.9 (.299)

6.2 (.378)

9.4 (.574)

10.3 (.629)

A3H16

A3H37

A3H56

A3H71

A3H100

A3H145

A3H180

Adjustable volumrewith each full turn of the adjustment

screw 3 cm /rev (cu.in./rev)

Minimum adjustment flow3 cm /rev (cu.in./rev)

8 (.488)

16 (.976)

35 (2.14)

45 (2.75)

63 (3.84)

95 (5.80)

125 (7.63)

Adjustment of Delivery

The minimum adjustable flow and adjustable volume ofeach full turn of the delivery adjustment screw

Flow Adjustment Screw Protrusion Length "L" vs. Geometric Displacement (reference)

LCover

Flow Adj. Screw

Lock Nut

Retainer

5

0

20

40

60

80

100

120

140

160

180

12cu.in./rev

mm

Inches

cm3/rev

.8

200

10 15 20

A3H16

A3H37

A3H56

A3H71

A3H100

A3H145

A3H180

10

8

6

4

2

0

.6.4.2

Geo

met

ric

Dis

plac

emen

t

Adjustment Screw Protrusion Length "L"

Page 108: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston Pumps120

60

40

20

0

N=1800 r/min

0

40

20

Pressure MPa

0

100

80

60

5 10 15 20 25 30 35

Inpu

t Pow

er

kW

Out

put F

low

L/

min

Eff

icie

ncy

%

Volumetric Efficiency

Overall Efficiency

Output Flow

Input Power

DR

P

S

0M

P

PP

DRS

0M

0M

P

S DR

LPP

M0

"14"Load Sensing Type

erusserP

Out

put F

low

"09"Constant Power Control Type

erusserP

Out

put F

low

"01"Pressure Compensator Type

erusserP

Out

put F

low

Volumetric efficiency is over 95% and overall efficiency is more than 90% at 1800 r/min.

High performance at maximum pressure35MPa

A3H series are compact in size because output / mass ratio is large.

Compact size

FeaturesControl Type

Flow Adj. Screw

Spool Pressure Compensator Valve

Pressure Adj. Screw

Control PistonDrain Port

Pivot

Shaft

Cradle

Slipper Retainer

Spring Spring Piston Ass'y

Cylinder Block

Port Plate

OUT

IN

"A3H" Series Variable Displacement Piston Pumps

"A3H37" type performance charateristics

Page 109: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

121

PISTON PUMPS

"A3H" Series Variable Displacement Piston Pumps

"A3H

"S

erie

s

A

Control Type Graphic Symbols Performance Characteristics Explanation Page

"01" 122

Pressure

Out

put F

low

Constant Power(Torque) Control

Type

Load SensingType

PressureCompensator

Type

"09" 141

Pressure

Out

put F

low

"14" 150

Pressure

Out

put F

low

Control Type

Availability of Control TypeMark " " in the table below refers to standard model.

Geometric DisplacementModel Numbers

cm3/rev (cu. in./rev)

A3H 16

A3H 37

A3H 56

A3H 71

A3H100

A3H145

A3H180

16.3 (.995)

37.1 (2.26)

56.3 (3.44)

70.7 (4.31)

100.5 (6.13)

145.2 (8.86)

180.7 (11.03)

"01"Pressure Compensator Type

"09"Constant Power

(Torque) Control Type

"14"Load Sensing Type

When the system pressure increases and comes close to the preset cut-off pressure, the pump flow decreases automatically while maintaining the set pressure as it is.

This is an energy-saving type control which maintains the pump flow and load pressure at the absolute minimum necessary level to operate the actuator.

This type of control automatically regulates the output flow so that the inlet-outlet differential pressure of the flow control valve at the output side is constant. To do so, the load pressure must be introduced to the load sensing port "L" of the pump through the external piping.

This type of control provides the remote control of the full cut-off pressure by connecting a remote control relief valve to the pilot port "PP".

A flow control valve is not included with the pump. Install the valve separately.

M

O

This type of control can control the pump input power according to the motor output.

When the system pressure increases, the pump swash plate tilt angle (output flow) decreases, in correspondence to predetermined shaft input values.

This type of control can enable one pump to act as two pumps (low-pressure and large-flow/high-pressure and small-flow). Therefore, the motor capacity can be reduced.

Page 110: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type122

1.2.3.

Model Numbers

GeometricDisplacement

cm3/rev(cu.in./rev)

MinimumAdj. Flowcm3/rev

(cu.in./rev)

Approx. Masskg (lbs.)

Operating PressureMPa (PSI)

Shaft Speed Ranger/min

A3H 16-*R01KK-10*A3H 37-*R01KK-10*A3H 56-*R01KK-10*A3H 71-*R01KK-10*A3H100-*R01KK-10*A3H145-*R01KK-10*A3H180-*R01KK-10*

16.3 (.995)

37.1 (2.26)

56.3 (3.44)

70.7 (4.31)

100.5 (6.13)

145.2 (8.86)

180.7 (11.03)

8.0 (.488)

16.0 (.976)

35.0 (2.14)

45.0 (2.75)

63.0 (3.84)

95.0 (5.80)

125.0 (7.63)

28 (4060) 35 (5080)

3600

2700

2500

2300

2100

1800

1800

600

600

600

600

600

600

600

14.5 (32.0)

19.5 (43.0)

25.7 (56.7)

35.0 (77.2)

44.6 (98.3)

60.0 (132)

70.4 (155)

23.4 (51.6)

27.0 (59.5)

33.2 (73.2)

42.5 (93.7)

72.6 (160)

88.0 (194)

98.4 (217)

Rated Max. 21 Intermittent Min.FlangeMtg.

FootMtg.

Consult Yuken when pump is used over rated pressure because there is a restriction on operating condition.

The table above shows specifications for using petroleum based oils.Pumps (customized design) for special fluids are also available. Their operating pressure and maximum shaft speed however differ from the values in the table above depending on the fluid type.Range of operating temperature and viscosities may differ from those of petroleum based oils due to their characteristics.

The maximum shaft speeds shown in the above table are at suction pressure 0 kPa (0 PSIG).

1.

2.

Type of Fluids

TemperatureRange

°C (°F)

Operating PressureMPa (PSI)

AllowableMaximum

Shaft Speedr/min

Water-Glycols

Phosphate Ester Type

Polyol Ester Type

21 (3050) 21 (3050)

21 (3050) 21 (3050)

21 (3050) 25 (3630)

1200

1200

1200

(1800)

(1800)

1800

0 - 50 (32 - 104)

0 - 60 (32 - 140)

Design Numbersfor Special Fluid

(Occasion ofJapanese Std.

"JIS")

1030

1006

0 - 60 (32 - 140) 10450

ViscosityRange

mm2/s (SSU)

20 - 200 (98 - 927)

20 - 200 (98 - 927)

Rated Rated2

1

1

Intermittent Max.

As the specific gravities of water-glycol fluids and phosphate ester type fluids are higher than one, an overhead reservoir is required when pumps are operated at 1500 r/min or more.For the design numbers of pumps for European Design and North American Design Standards, please contact us.

Specifications and Design numbers for Special Fluids

Specifications

"A3H" Series Variable Displacement Piston Pumps-Single Pump,Pressure Compensator Type

M

O

Graphic Symbol

Page 111: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

123

PISTON PUMPS

"A3H

"S

erie

s

A

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

3

4

1

2

5

Series Number MountingDirection of

RotationControl Type Shaft Extension Design Std.

Design Number

*-10K01R-FA3H16

F: Flange Mtg.

L: Foot Mtg.

F: Flange Mtg.

L: Foot Mtg.

Viewed from Shaft End

R: Clockwise(Normal)

10

10

10

10

10

10

10

K : Keyed Shaft

K : Keyed Shaft44.45mm (1.75 IN.) Dia.

K1: Keyed Shaft50.8mm (2.0 IN.) Dia.

01: PressureCompensatorType

Refer to

KPres. Adj. Range

MPa (PSI)

K: 5 - 35 (725 - 5080)

A3H16(16.3 cm3/rev)

A3H37(37.1 cm3/rev)

A3H56(56.3 cm3/rev)

A3H71(70.7 cm3/rev)

A3H100(100.5 cm3/rev)

A3H145(145.2 cm3/rev)

A3H180(180.7 cm3/rev)

Model Number Designation

1.2.3.

Available to supply pump with anti-clockwise rotation. Consult Yuken for details.

Design Standards: None ......... Japanese Standard "JIS"80 ............. European Design Standard950 ........... N. American Design Standard (Applicable only for A3H16/37/56/71)954 ........... N. American Design Standard (Applicable only for A3H100/145/180)

We can also supply spline-type shaft extension. Consult Yuken for details.

4.5.

Mounting type "L" is not available for N. American Design Standard.Shaft extension "K1" is applicable only for N. American Design Standard.

1.2. As dimensions of the surface of pipe flanges are conformed to the SAE standards mentioned below, the pipe flanges conforming to the SAE

standards can be used. • Suction Port: SAE 4 Bolt Split Flange (Standard Pressure Series) • Discharge Port: SAE 4 Bolt Split Flange (High Pressure Series)

Suction

Pump ModelNumbers

Name of Port JapaneseStd. "JIS"

JapaneseStd. "JIS" &

EuropeanDesign Std.

JapaneseStd. "JIS" &

EuropeanDesign Std.

EuropeanDesign Std.

N. AmeraicanDesign

Standard

N. AmeraicanDesign

Standard

N. AmeraicanDesign

Standard

F5-08-C-1090

Threaded Connection Socket Welding Butt Welding

A3H16-*R01F5-08-A-10 F5-08-B-1090

F6-06-B-U-1090

F5-08-C-10F5-08-A-1080

F6-06-A-M-10 F6-06-A-M-1080Discharge

Suction F5-10-C-1090F5-10-A-10 F5-10-B-1090 F5-10-C-10F5-10-A-1080

DischargeA3H37-*R01

F6-08-A-M-10 F6-08-B-U-1090F6-08-A-M-1080

Suction F5-12-C-1090A3H56-*R01

F5-12-A-10 F5-12-B-1090 F5-12-C-10F5-12-A-1080

Discharge F6-08-A-M-10 F6-08-B-U-1090F6-08-A-M-1080

Suction F5-16-C-1090A3H71-*R01

F5-16-A-10 F5-16-B-1090 F5-16-C-10F5-16-A-1080

Discharge F6-10-A-M-10 F6-10-B-U-1090F6-10-A-M-1080

Pipe Flange KitsPipe flange kits are available. When ordering, specify the kit number from the table below.

Suction F5-20-C-1090A3H100-*R01A3H145-*R01

F5-20-A-10 F5-20-B-1090 F5-20-C-10F5-20-A-1080

Discharge F6-10-A-M-10 F6-10-B-U-1090F6-10-A-M-1080

SuctionA3H180-*R01

F5-24-A-10 F5-24-B-1090F5-24-A-1080

Discharge F6-12-A-M-10

F5-08-B-10

F6-06-B-M-10

F5-10-B-10

F6-08-B-M-10

F5-12-B-10

F6-08-B-M-10

F5-16-B-10

F6-10-B-M-10

F5-20-B-10

F6-10-B-M-10

F5-24-B-10

F6-12-B-M-10 F6-12-B-U-1090F6-12-A-M-1080

2

1

1

1

1

1

1

2 2

These flanges are with tapered threaded port, maximum pressure is restricted at 31 MPa (4500 PSI).

Details of pipe flange kits are shown on page 824 & 829.

Page 112: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type124

Model1t 2t

Response Time ms Ps

A3H 16

A3H 37

A3H 56

30

40

50

140

80

90

2.5 (363)

3.5 (508)

7.5 (1088)

A3H 71 50 140 10.0 (1450)

A3H100 70 170 11.0 (1595)

A3H145 70 180 12.5 (1813)

A3H180 70 220 12.0 (1740)

Overshoot Pres. MPa (PSI)

OFF

Time

SOLOFF

ON

t

(4060 PSI)

2 MPa (290PSI)

1 t 2

2 MPa (290PSI)

Ps

28 MPa

Pre

ssur

e

Result of Measurement

Model High Pressure Rubber Housea

A3H16

A3H37/56/71

A3H100/145

3/4B 1500 mm (4.9 ft.)

A3H180

MO

SOL High Pressure Rubber Hose

Test Circuit and Conditions Size of High Pressure Rubber HouseCircuit

Conditions

Drive Speed: 1500 r/min

Hydraulic Fluid: ISO VG32 Oil

Oil Temperature: 40 °C (104 °F) [Viscosity 32 mm2/s (150 SSU)]

3/4B 2000 mm (6.6 ft.)

1-1/4B 2000 mm (6.6 ft.)

1-1/4B 2500 mm (8.2 ft.)

Response Characteristics Change in Accordance with Circuits and Operating Conditions.

Page 113: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

125

PISTON PUMPS

"A3H

"S

erie

s

A

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

30

20

10

0

N=1500 r/min

0

100

80

60

5 10 15 20 25 30 35

30

20

10

0

N=1800 r/min

0

100

80

60

5 10 15 20 25 30 35 0

100

80

0606

40

20

05 10 15 20 25 30 35

N=3600 r/min

20

15

10

5

010 15 20 25 30

N=1500 r/min

35 (5080)

MPa (PSI)

30 (4350)28 (4060)25 (3630)

20 (2900)

15 (2180)

10 (1450)

5 ( 730)

N=1800 r/min

20

15

10

5

010 15 20 25 30

35 (5080)

30 (4350)28 (4060)

25 (3630)

20 (2900)

15 (2180)

10 (1450)

5 ( 730)

40

35

30

25

20

15

10

5

020 30 40 50 60

N=3600 r/min

35 (5080)

30 (4350)28 (4060)25 (3630)

20 (2900)

15 (2180)

10 (1450)

5 ( 730)

5

4

3

2

1

0 5 10 15 20 25 30 35

3600 r/min

1800 r/min1500 r/min

5

4

3

2

1

0 5 10 15 20 25 30 35

3600 r/min

3600 r/min

1800 r/min1500 r/min

1800 r/min1500 r/min

80

70

60

500 5 10 15 20 25 30 35

N=1500 r/min N=1800 r/min80

70

60

500 5 10 15 20 25 30 35

N=2500 r/min80

70

60

500 5 10 15 20 25 30 35

MPa (PSI)MPa (PSI)

Volumetric Efficiency Volumetric Efficiency Volumetric Efficiency

Output Flow

Overall Efficiency

Output Flow

Output Flow

Input Power

Input Power

Input Power

Overall Efficiency Overall Efficiency

Full Flow

Full Cut-off

Full Cut-off

Full Flow

Full Cut-off

Full Flow

Full Cut-off

Full Flow

8

6

4

2

0

0 1000 2000 3000Pressusre

Inpu

t Pow

er

Out

put F

low

Eff

icie

ncy

4000 5000

20HP

kW

%

10

0

20

10

PSI

MPa

8

6

4

2

0

0 1000 2000 3000Pressusre

Inpu

t Pow

er

Out

put F

low

Eff

icie

ncy

4000 5000

20

30HP

L/m

in

U.S

.GP

M

0Full Cut-off Pressure

Full

Cut

-off

Pow

erN

oise

Lev

el

50004000300020001000

4

3

2

1

5

6HP

0

PSI

MPa

0Pressure

50004000300020001000 PSI

MPa

L/m

in

U.S

.GP

M

L/m

in

U.S

.GP

M

kW

%

10

0

20

10

PSI

MPa

16

12

8

4

0

0 1000 2000 3000Pressusre

Inpu

t Pow

er

Out

put F

low

Eff

icie

ncy

4000 5000

40

60HP

kW

%

20

0

40

20

PSI

MPa

Output Flow

Inpu

t Pow

er

876543

8

24

20

16

12

HP

kW

kW

dB(A)

Noi

se L

evel

0Pressure

50004000300020001000 PSI

MPa

dB(A)

Noi

se L

evel

0Pressure

50004000300020001000 PSI

MPa

dB(A)

0Pressure

Dra

in

50004000300020001000

.8

.6

.4

.2

1.0

1.2U.S.GPM

0

PSI

MPa

L/min

kW

4

0

U.S.GPM

L/min

Output Flow

Inpu

t Pow

er

876543

8

24

20

16

12

HP

4

0

U.S.GPM

L/min

kW

Output Flow

Inpu

t Pow

er

1614121086

40

50

30

20

10

HP

0

U.S.GPM

L/min

Typical Performance Characteristics of Type "A3H16" at Viscosity 32 mm2/s (150 SSU) [ISO VG32 oils, 40°C (104°F)]

Performance Characteristic Curve

Input Power

Note) The dotted line in the graph indicates less than minimum adjustable flow.

Full Cut-off Power Drain

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover]

Page 114: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type126

0

100

80

0606

40

20

05 10 15 20 25 30 35

N=1500 r/min

60

80

40

20

0

N=1800 r/min

0

100

80

60

5 10 15 20 25 30 35

120

80

100

40

60

200

N=2700 r/min

0

100

80

60

5 10 15 20 25 30 35

35

30

25

20

15

10

5

025 30 35 40 45 50 55 6020

60

50

40

30

20

10

030 40 50 70 806020

N=1800 r/min6065

50

40

30

20

10

030 40 50 60 70 80 90 100

N=2700 r/min

10

8

6

4

2

0 5 10 15 20 25 30 35

10

8

6

4

2

0 5 10 15 20 25 30 35

N=1500 r/min80

70

60

50

N=1800 r/min80

70

60

50

N=2500 r/min80

70

60

50

N=1500 r/min

0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

Volumetric Efficiency Volumetric Efficiency Volumetric Efficiency

Output Flow

Overall Efficiency

Output FlowOutput Flow

Input PowerInput Power

Input Power

Overall Efficiency Overall Efficiency

Full Flow

Full Cut-off

Full Cut-off

Full Flow

Full Cut-off

Full Flow

Full Cut-off

Full Flow

2700 r/min

1800 r/min1500 r/min

2700 r/min1800 r/min1500 r/min

35 (5080)

20 (2900)

15 (2180)

10 (1450)

5 ( 730)

30 (4350)28 (4060)

25 (3630)

MPa(PSI)

35 (5080)

30 (4350)28 (4060)25 (3630)20 (2900)

15 (2180)

10 (1450)

5 ( 730)

MPa(PSI)

35 (5080)MPa(PSI)

30 (4350)28 (4060)25 (3630)

20 (2900)

15 (2180)

10 (1450)

5 ( 730)

1500 r/min1800 r/min

2700 r/min

12

8

4

0

16

0 1000 2000 3000Pressusre

Inpu

t Pow

er

Out

put F

low

Eff

icie

ncy

4000 5000

40

60HP

kW

%

20

0

40

20

PSI

MPa

16

12

8

4

0

20

0 1000 2000 3000Pressusre

Inpu

t Pow

er

Out

put F

low

Eff

icie

ncy

4000 5000

40

60HP

L/m

in

U.S

.GP

M

0Full Cut-off Pressure

Full

Cut

-off

Pow

erN

oise

Lev

el

50004000300020001000

8

6

4

2

10

12HP

0

PSI

MPa

0Pressure

50004000300020001000 PSI

MPa

L/m

in

U.S

.GP

M

L/m

in

U.S

.GP

M

kW

%

20

0

40

20

PSI

MPa

32

24

16

8

0

0 1000 2000 3000Pressusre

Inpu

t Pow

er

Out

put F

low

Eff

icie

ncy

4000 5000

80

120HP

kW

%

40

0

80

40

PSI

MPa

Output Flow

Inpu

t Pow

er

1686 10 12 14

40

50

30

20

10

HPkW

kW

dB(A)

Noi

se L

evel

0Pressure

50004000300020001000 PSI

MPa

dB(A)

Noi

se L

evel

0Pressure

50004000300020001000 PSI

MPa

dB(A)

0Pressure

Dra

in

50004000300020001000

1.6

2.0

2.4

1.2

.8

.4

U.S.GPM

0

PSI

MPa

L/min

kW

0

U.S.GPM

L/min

Output Flow

Inpu

t Pow

er

16 18 2086 10 12 14

80

70

60

50

40

30

20

10

HP

0

U.S.GPM

L/min

kW

Output Flow

Inpu

t Pow

er

24 282016128

80

90

70

60

50

40

30

20

10

HP

0

U.S.GPM

L/min

Typical Performance Characteristics of Type "A3H37" at Viscosity 32 mm2/s (150 SSU) [ISO VG32 oils, 40°C (104°F)]

Performance Characteristic Curve

Input Power

Note) The dotted line in the graph indicates less than minimum adjustable flow.

Full Cut-off Power Drain

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover]

Page 115: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

127

PISTON PUMPS

"A3H

"S

erie

s

A

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

60

80

100

120

40

200

N=1500 r/min100

80

60

100

80

60

60

80

100

120

40

200

N=1800 r/min100

80

60

60

80

100

120

140

40

200

N=2500 r/min

60

70

50

40

30

20

100

N=1500 r/min

60

70

50

40

30

20

100 0

10

20

30

40

50

60

70

80

90

10

8

6

4

2

2500 r/min

1800 r/min1500 r/min

10

8

6

4

2

2500 r/min

2500 r/min

1500,1800 r/min

1500,1800 r/min

80

90

70

60

50

N=1500 r/min

80

90

70

60

50

N=1800 r/min

80

90

70

60

50

N=2500 r/min

N=1800 r/min

N=2500 r/min

Volumetric Efficiency Volumetric Efficiency Volumetric Efficiency

Output Flow

Overall Efficiency

Output Flow

Output Flow

Input PowerInput Power

Input Power

Overall Efficiency Overall Efficiency

Full Flow

Full Cut-off

Full Cut-off

Full Flow

Full Cut-off

Full Flow

Full Cut-off

35 (5080)

20 (2900)

15 (2180)

10 (1450)

5 ( 730)

30 (4350)28 (4060)

25 (3630)

MPa(PSI)

35 (5080)30 (4350)28 (4060)25 (3630)

20 (2900)

15 (2180)

10 (1450)

5 ( 730)

MPa(PSI)

25 (3630)20 (2900)15 (2180)10 (1450)5 ( 730)

30 (4350)28 (4060)

35 (5080)MPa(PSI)

Full Flow

24

16

8

0

32

0 1000 2000 3000Pressusre

Inpu

t Pow

er

Out

put F

low

Eff

icie

ncy

4000 5000

80HP

kW

%

40

0

80

40

PSI

32

24

16

8

0

0 1000 2000 3000Pressusre

Inpu

t Pow

er

Out

put F

low

Eff

icie

ncy

4000 5000

80HP

L/m

in

U.S

.GP

M

0Full Cut-off Pressure

Full

Cut

-off

Pow

erN

oise

Lev

el

50004000300020001000

8

12

4

HP

0

PSI

0Pressure

50004000300020001000 PSI

L/m

in

U.S

.GP

M

L/m

in

U.S

.GP

M

kW

%

40

0

80

40

PSI

32

24

16

8

0

40

0 1000 2000 3000Pressusre

Inpu

t Pow

er

Out

put F

low

Eff

icie

ncy

4000 5000

80

120HP

kW

%

40

0

80

40

PSI

Output Flow

Inpu

t Pow

er

24 281612 20

80

60

40

20

HP

kW

kW

dB(A)

Noi

se L

evel

0Pressure

50004000300020001000 PSI

dB(A)

Noi

se L

evel

0Pressure

50004000300020001000 PSI

dB(A)

0Pressure

Dra

in

50004000300020001000

1.6

2.0

1.2

.8

.4

U.S.GPM

0

PSI

L/min

kW

0

U.S.GPMOutput Flow

Inpu

t Pow

er

24 281612 20

80

100

60

40

20

HP

0

U.S.GPM

kW

Output Flow

Inpu

t Pow

er

32 36 382420 28

120

100

80

60

40

20

HP

0

U.S.GPM

Typical Performance Characteristics of Type "A3H56" at Viscosity 32 mm2/s (150 SSU) [ISO VG32 oils, 40°C (104°F)]

Performance Characteristic Curve

Input Power

Note) The dotted line in the graph indicates less than minimum adjustable flow.

Full Cut-off Power Drain

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover]

40 50 60 70 80 90 100 110 40 50 60 70 80 90 100 110 70 80 90 100 110 120 130 140

0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

MPa

MPa

MPa

MPa MPa

MPa MPa

MPa

L/min L/min L/min

Page 116: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type128

90

100

110

80

N=1500 r/min100

80

60

100

80

60

90

100

110

120

130

80

N=1800 r/min

130

140

150

160

170

120

N=2300 r/min100

80

60

N=1500 r/min

70

80

50

60

30

40

10

20

0

70

80

50

60

30

40

10

20

0

N=1800 r/min

80

100

120

60

40

20

0

N=2300 r/min

16

8

10

12

14

6

4

2

2300 r/min

1800 r/min1500 r/min 8

10

12

14

6

4

2

2300 r/min

2300 r/min

1800 r/min

1800 r/min

1500 r/min

1500 r/min

80

90

70

60

50

N=1500 r/min

80

90

70

60

50

N=1800 r/min

80

90

70

60

50

N=2300 r/min

Volumetric Efficiency Volumetric Efficiency Volumetric Efficiency

Output Flow

Overall Efficiency

Output FlowOutput Flow

Input PowerInput Power

Input Power

Overall Efficiency Overall Efficiency

Full Flow

Full Cut-o

ff

Full Cut-off

Full Flow

Full Cut-off

Full Flow

Full Cut-off

35 (5080)

20 (2900)

15 (2180)

10 (1450)

5 ( 730)

30 (4350)28 (4060)25 (3630)

MPa(PSI)35 (5080)

30 (4350)28 (4060)

25 (3630)

20 (2900)

15 (2180)

10 (1450)

5 ( 730)

MPa(PSI)

25 (3630)

20 (2900)

15 (2180)

10 (1450)

5 ( 730)

30 (4350)28 (4060)

35 (5080)MPa(PSI)

Full Flow

28

24

20

32

0 1000 2000 3000Pressusre

Inpu

t Pow

er

Out

put F

low

Eff

icie

ncy

4000 5000

80

120HP

kW

%

40

0

80

40

PSI

MPa

32

28

24

20

36

0 1000 2000 3000Pressusre

Inpu

t Pow

er Out

put F

low

Eff

icie

ncy

4000 5000

80

120HP

L/m

in

U.S

.GP

M

0Full Cut-off Pressure

Full

Cut

-off

Pow

erN

oise

Lev

el

50004000300020001000

16

20

12

8

4

HP

0

PSI

MPa

0Pressure

50004000300020001000 PSI

MPa

L/m

in

U.S

.GP

M

L/m

in

U.S

.GP

M

kW

%

40

0

80

40

PSI

MPa

32

36

40

44

0 1000 2000 3000Pressusre

Inpu

t Pow

er

Out

put F

low

Eff

icie

ncy

4000 5000

80

120

160HP

kW

%

40

0

80

100

40

PSI

MPa

Output Flow

Inpu

t Pow

er

4036322824201612

80

100

60

40

20

HPkW

kW

dB(A)

Noi

se L

evel

0Pressure

50004000300020001000 PSI

MPa

dB(A)

Noi

se L

evel

0Pressure

50004000300020001000 PSI

MPa

dB(A)

0Pressure

Dra

in

50004000300020001000

3.2

3.6

2.8

2.4

2.0

1.6

1.2

.8

.4

U.S.GPM

0

PSI

MPa

L/min

kW

0

U.S.GPM 4036322824201612 U.S.GPM

L/min

Output Flow

Inpu

t Pow

er

80

100

110

60

40

20

HP

0L/min

kW

Output Flow

Inpu

t Pow

er

40 442420 28 32 36

160

120

80

40

HP

0

U.S.GPM

L/min

Typical Performance Characteristics of Type "A3H71" at Viscosity 32 mm2/s (150 SSU) [ISO VG32 oils, 40°C (104°F)]

Performance Characteristic Curve

Input Power

Note) The dotted line in the graph indicates less than minimum adjustable flow.

Full Cut-off Power Drain

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover]

50 70 90 110 130 150 50 70 90 110 130 150 60 80 100 120 140 160

0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 350 5 10 15 20 25 30

Page 117: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

129

PISTON PUMPS

"A3H

"S

erie

s

A

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

100

80

130

140

150

160

120

N=1500 r/min

150

160

170

180

190

140

N=1800 r/min100

80

100

80

180

190

200

210

220

170

N=2100 r/min

16

8

10

12

14

6

4

2

2100 r/min

1800 r/min1500 r/min

8

10

12

14

6

4

2

2100 r/min

2100 r/min

1800 r/min

1500,1800 r/min

1500 r/min

80

90

70

60

50

N=1500 r/min

80

90

70

60

50

N=1800 r/min

80

90

70

60

50

N=2100 r/min

Volumetric Efficiency Volumetric Efficiency Volumetric Efficiency

Output Flow

Overall Efficiency

Output Flow Output Flow

Input Power

Input Power

Input Power

Overall Efficiency Overall Efficiency

Full Flow

Full Cut-o

ff

Full Cut-off

Full Flow

Full Cut-off

Full Flow

Full Cut-off

35 (5080)

30 (4350)28 (4060)25 (3630)

MPa(PSI)

30 (4350)28 (4060)25 (3630)

20 (2900)

15 (2180)

10 (1450)

5 ( 730)

25 (3630)20 (2900)

15 (2180)10 (1450)

5 ( 730)

30 (4350)28 (4060)

35 (5080)MPa(PSI)

Full Flow

20 (2900)

15 (2180)

10 (1450)

5 ( 730)

MPa(PSI)35 (5080)

Typical Performance Characteristics of Type "A3H100" at Viscosity 32 mm2/s (150 SSU) [ISO VG32 oils, 40°C (104°F)]

32

36

40

44

0 1000 2000 3000Pressusre

Inpu

t Pow

er

Out

put F

low

Eff

icie

ncy

4000 5000

80

120HP

kW

%

40

0

80

100

40

PSI

48

44

40

36

52

0 1000 2000 3000Pressusre

Inpu

t Pow

er

Out

put F

low

Eff

icie

ncy

4000 5000

80

120

160HP

L/m

in

U.S

.GP

M

0Full Cut-off Pressure

Full

Cut

-off

Pow

erN

oise

Lev

el

50004000300020001000

8

12

16

20

4

HP

0

PSI

0Pressure

50004000300020001000 PSI

L/m

in

U.S

.GP

M

L/m

in

U.S

.GP

M

kW

%

40

0

80

120

40

PSI

56

52

48

44

60

0 1000 2000 3000Pressusre

Inpu

t Pow

er

Out

put F

low

Eff

icie

ncy

4000 5000

200

150

100

50

HP kW

%

0

150

100

50

PSI

Output Flow

Inpu

t Pow

er

24 28 32 36 40 44 48 52

160

120

80

40

HP

kW

dB(A)

Noi

se L

evel

0Pressure

50004000300020001000 PSI

dB(A)

Noi

se L

evel

0Pressure

50004000300020001000 PSI

dB(A)

0Pressure

Dra

in

50004000300020001000

3.23.6

2.82.42.01.61.2.8.4

U.S.GPM

0

PSI

L/min

0

U.S.GPMOutput Flow

Inpu

t Pow

er

5652484440363228

160

180

120

80

40

HP

0

U.S.GPM

Performance Characteristic Curve

Input Power

Note) The dotted line in the graph indicates less than minimum adjustable flow.

Full Cut-off Power Drain

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover]

80 100 120 140 160 180 200 100 120 140 160 180 200 220

0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

MPa

MPa

MPa

MPa MPa

MPa MPa

MPa

L/min L/min

60

80

100

120

40

20

0 0

20

40

60

80

100

120

140kW

60

80

100

120

40

20

0

kW N=1500 r/min

Output Flow

Inpu

t Pow

er

24 28 32 36 40 44 48 52

160

120

80

40

HP

0

U.S.GPM

80 100 120 140 160 180 200 L/min

kW N=1800 r/min

N=2100 r/min

Page 118: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type130

180

220

140

N=1500 r/min100

80

200

240

280

160

N=1800 r/min100

80

200

40

60

80

100

120

140N=1500 r/min

35 (5080)

30 (4350)28 (4060)25 (3630)

20 (2900)

15 (2180)

10 (1450)

5 ( 730) 200

40

60

80

100

120

140

160

180N=1800 r/min

35 (5080)

30 (4350)28 (4060)25 (3630)

20 (2900)

15 (2180)

10 (1450)

5 ( 730)

5

10

15

20 1800 r/min

1500 r/min

5

10

15

201800 r/min

1800 r/min

1500 r/min

1500 r/min

90

80

70

60

N=1500 r/min90

80

70

60

N=1800 r/min

(PSI)MPa(PSI)MPa

58

50

42

34

0Pressusre

Inpu

t Pow

er

Out

put F

low

Eff

icie

ncy

50004000300020001000

200

150

100

50

HP kW

%

0

150

100

50 Inpu

t Pow

er

200

150

100

50

HP kW

0

150

100

50

PSI

74

58

66

50

42

0 1000 2000 3000Pressusre

Out

put F

low

Eff

icie

ncy

4000 5000

L/m

in

U.S

.GP

M

0Full Cut-off Pressure

Full

Cut

-off

Pow

er

Noi

se L

evel

50004000300020001000

20

25

15

10

5

HP

0

PSI

0Pressure

50004000300020001000 PSI

L/m

in

U.S

.GP

M%

PSI

Output Flow

Inpu

t Pow

er

58 6642342618 50

160

180

120

80

40

HP kW

kW

dB(A)

Noi

se L

evel

0Pressure

50004000300020001000 PSI

dB(A)

Dra

in

5

4

3

2

1

U.S.GPM

0

L/min

kW

0

U.S.GPMOutput Flow

Inpu

t Pow

er

74665850423426

240

200

160

120

80

40

HP

0

U.S.GPM

Typical Performance Characteristics of Type "A3H145" at Viscosity 32 mm2/s (150 SSU) [ISO VG32 oils, 40°C (104°F)]

Performance Characteristic Curve

Input Power

Note) The dotted line in the graph indicates less than minimum adjustable flow.

Full Cut-off Power Drain

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover]

60 100 140 180 220 260 80 120 160 200 240 280

0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

0 5 10 15 20 25 30 35

0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

MPa

MPa

0Pressure

50004000300020001000 PSI

0 5 10 15 20 25 30 35 MPa

MPa

MPa

MPa

L/min L/min

Volumetric Efficiency Volumetric Efficiency

Output Flow

Overall Efficiency

Output Flow

Input Power

Input Power

Overall Efficiency

Full Cut-off

Full Cut-off Full Cut-off

Full Flow

Full Flow

Full Flow

Page 119: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

131

PISTON PUMPS

"A3H

"S

erie

s

A

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

240

280

200

N=1500 r/min100

80

60

260

300

340

220

N=1800 r/min100

80

40

80

120

160

200N=1500 r/min

35 (5080)

30 (4350)28 (4060)25 (3630)

20 (2900)

15 (2180)

10 (1450)

5 ( 730)40

80

120

160

210200

N=1800 r/min

30 (4350)28 (4060)25 (3630)

20 (2900)

15 (2180)

10 (1450)

5 ( 730)

4

8

12

16

20 1800 r/min

1500 r/min

10

20 1800 r/min

1800 r/min

1500 r/min

1500 r/min

N=1500 r/min90

80

70

60

90

80

70

60

N=1800 r/min

MPa(PSI)35 (5080)

MPa(PSI)

90

60

70

80

0Pressusre

Inpu

t Pow

er Out

put F

low

Eff

icie

ncy

50004000300020001000

160

240

320

80

HP kW

%

0

160

240

80

PSI 0 1000 2000 3000Pressusre

Eff

icie

ncy

4000 5000

L/m

in U.S

.GP

M

50

60

70

80

Inpu

t Pow

er Out

put F

low

160

240

80

HPkW

0

160

80

U.S

.GP

M

0Full Cut-off Pressure

Full

Cut

-off

Pow

er

Noi

se L

evel

50004000300020001000

24

16

8

HP

0

PSI

0Pressure

50004000300020001000 PSI

L/m

in

%

PSI

Output Flow

Inpu

t Pow

er

806040200

240

200

160

120

80

40

HP

kW

kW

dB(A)

Noi

se L

evel

0Pressure

50004000300020001000 PSI

dB(A)

Dra

in

5

4

3

2

1

U.S.GPM

0

L/min

kW

0

U.S.GPM

Typical Performance Characteristics of Type "A3H180" at Viscosity 32 mm2/s (150 SSU) [ISO VG32 oils, 40°C (104°F)]

Performance Characteristic Curve

Input Power

Note) The dotted line in the graph indicates less than minimum adjustable flow.

Full Cut-off Power Drain

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover]

0 50 100 150 200 250 300

0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

0 5 10 15 20 25 30 35

0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

MPa

MPa

0Pressure

50004000300020001000 PSI

0 5 10 15 20 25 30 35 MPa

MPa

MPa

MPa

L/min

Output Flow

Inpu

t Pow

er

9080604010 20

240

200

280

160

120

80

40

HP

0

U.S.GPM

50 100 150 200 250 300 350 L/min

Volumetric Efficiency Volumetric Efficiency

Output Flow

Overall Efficiency

Output Flow

Input Power

Input Power

Overall Efficiency

Full Cut-off

Full Cut-off Full Cut-off

Full Flow

Full Flow

Full Flow

Page 120: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type132

DIMENSIONS INMILLIMETRES (INCHES)

Flange Mtg.: A3H16-FR01KK-10/1080/10950

Foot Mtg.: A3H16-LR01KK-10/1080/10950

6.38(.2512)6.35(.2500)

28

89.8

13.5

119

89.8

(4.6

9)

(3.5

35)

126

37

28

82(3

.23)

109.

581

(4.3

1)(3

.19)

174.5(6.87)

10(.39)

Flow Adj. Screw13(.51) Hex.

Suction Port26(1.02) Dia.

Discharge Port19(.75) Dia.

"D" Thd. 19(.75) Deep8 Places

74.5

31.5 31.5

26.2 23.8

(1.24) (1.24)

(1.031) (.937)

52.4

(2.0

63)

50.8

(2.0

00)

22.2

3(.8

752)

Dia

.22

.20(

.874

0)25

.01(

.985

)24

.85(

.978

)10

1.60

(4.0

000)

Dia

.10

1.55

(3.9

980)

Position of Drain Port

(1.10)

(3.535)

(.53)

(4.96)

10(.39)

DEC.

74.5(2.93) (2.93)

39

49.5Fully Extended

(1.46)

(1.10)

(1.54)

(1.95)205.5(8.09)

44

100

165

115

120 120

14(.55) Dia. Through28(1.10) Dia. Spotface

288

(.71

)

(4.5

3)

22

152

(1.73)

(3.937)

(6.50)

(4.724) (4.724)

(11.34)

(.87)

(5.98)

9.5(.37)

4 Places

X

View Arrow X

Filling Port[22(.87) Hex. Head Plug Furnished]

Drain Port"C" Thd.

Pres. Adj. Screw13(.51) Hex.

INC.

Model Numbers "C" Thd.

A3H16-FR01KK-10

A3H16-FR01KK-1080

A3H16-FR01KK-10950

"D" Thd.

Rc 1/2

1/2 BSP.F

SAE #10

M10

3/8-16 UNC

Install the pump so that the "Filling port" is at the top.

For other dimensions, refer to "Flange Mtg.".

41.5(1.63)

1816 (.63

)

Page 121: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

133

PISTON PUMPS

"A3H

"S

erie

s

A

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

DIMENSIONS INMILLIMETRES (INCHES)

Model Numbers "C" Thd.

A3H37-FR01KK-10

A3H37-FR01KK-1080

A3H37-FR01KK-10950

Rc 1/2

1/2 BSP.F

SAE #10

Flange Mtg.: A3H37-FR01KK-10/1080/10950

Foot Mtg.: A3H37-LR01KK-10/1080/10950

Install the pump so that the "Filling port" is at the top.

"E" Thd."D" Thd.

M10

7/16-14 UNC

M12

1/2-13 UNC

Fmm(IN.)

Hmm(IN.)

22 (.87)

21 (.83)

18 (.71)

20 (.79)

For other dimensions, refer to "Flange Mtg.".

81

30.2

58.7

57.2

(2.3

11)

(2.2

52)

35 35

27.8

(3.19)

(1.189)

(1.38) (1.38)

(1.094)

47.5

Fully Extended223(8.78)

114

61.5

40

49

189.5

12

28

12.5

(1.87)

(2.42)

(1.57)

(1.93)

(7.46)

(.47)

(.49)

90

94(4.4

9)(3

.54)

(3.7

0)

150

143

114.

5(5

.63)

(4.5

08)

13.5

114.5

6.38(.2512)6.35(.2500)

25.4

0(1.

0000

) D

ia.

25.3

7( .

9988

)28

.18(

1.10

9)28

.00(

1.10

2)12

7.00

(5.0

000)

Dia

.12

6.95

(4.9

980)

Positon of Dain Port

(1.10)

(5.91)

(.53)

(4.508)16.5(.65)

3

39.5

150

23

66.5

16 19

(.12

) (5.9

1)

(.91

)

(.63

)

(.75

)

22

100

278

115150(1.56)

(2.62)

(.87)

(3.937)

(10.94)

(4.528)115

(4.528)(5.91)

158(6.22)

DEC.

X

View Arrow X

"E" Thd. "H" Deep4 Places

Flow Adj. Screw17(.67) Hex.

Suction Port32(1.26) Dia.

"D" Thd. "F" Deep4 Places

Discharge Port24(.94) Dia.

Pres. Adj. Screw13(.51) Hex.

INC.

14(.55) Dia. Through28(1.10) Dia. Spotface

Drain Port"C" Thd.

4 Places

Filling Port[22(.87) Hex. Head Plug Furnished]

82(3.23)

Page 122: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type134

DIMENSIONS INMILLIMETRES (INCHES)

Flange Mtg.: A3H56-FR01KK-10/1080/10950

Foot Mtg.: A3H56-LR01KK-10/1080/10950

Model Numbers "C" Thd.

A3H56-FR01KK-10

A3H56-FR01KK-1080

A3H56-FR01KK-10950

Rc 3/4

3/4 BSP.F

SAE #12

Install the pump so that the "Filling port" is at the top.

"E" Thd."D" Thd.

M12

7/16-14 UNC

M12

1/2-13 UNC

Fmm(IN.)

Hmm(IN.)

22 (.87)

21 (.83)

22 (.87)

20 (.79)

For other dimensions, refer to "Flange Mtg.".

Positon of Dain Port

114.5

13.5

143

114.

5(5

.63)

(4.5

08)

107

62

47.5

40

Fully Extended223(8.78)

12.546.5(2.44)

(1.87)

(1.57)

(.49)(1.83)

20612

510

2

(4.2

1)

(4.9

2)(4

.02)

3838

69.9

27.835.7

92

(1.50)(1.50)

(1.094)(1.406)

(3.62)

57.2

(2.7

52)

(2.2

52)

13

(8.11)

(.51)

154

28

19(.75)

(4.508)

(.53)

(6.06)

(1.10)

31.7

5(1.

2500

) D

ia.

31.7

0(1.

2480

)35

.32(

1.39

1)35

.14(

1.38

3)12

7.00

(5.0

000)

Dia

.12

6.95

(4.9

980)

7.97(.3138)7.94(.3126)

View Arrow X

X

3

40150

150

23

(.12

) (5.9

1)

(.91

)

1916 (.75

)

(.63

)

115115

278(4.528)(4.528)

(10.94)

22

67100

(1.57)(5.91)

(.87)

(2.64)(3.937)

DEC.Flow Adj. Screw

17(.67) Hex.

Discharge Port26(1.02) Dia.

Suction Port38(1.50) Dia. "D" Thd. "F" Deep

4 Places

INC.Pres. Adj. Screw

13(.51) Hex.

14(.55) Dia. Through28(1.10) Dia. Spotface

89(3.50)

Drain Port"C" Thd.

Filling Port[22(.87) Hex. Head Plug Furnished]

"E" Thd. "H" Deep4 Places

158(6.22)

4Places

Page 123: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

135

PISTON PUMPS

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"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

DIMENSIONS INMILLIMETRES (INCHES)

Flange Mtg.: A3H71-FR01KK-10/1080/10950

Foot Mtg.: A3H71-LR01KK-10/1080/10950

Model Numbers "C" Thd.

A3H71-FR01KK-10

A3H71-FR01KK-1080

A3H71-FR01KK-10950

Rc 3/4

3/4 BSP.F

SAE #12

Install the pump so that the "Filling port" is at the top.

E mm (IN.)"D" Thd.

19 (.75)

21 (.83)

M12

1/2-13 UNC

For other dimensions, refer to "Flange Mtg.".

View Arrow X

X

114.5

154

114.

5

143

(4.5

08)

(5.6

3)

75

55 12.5

50

60.5

Fully Extended

140

14

28

229.5

(2.95)

(2.17) (.49)

(1.97)

(2.38)

264(10.39)

(.55)

(9.04)

114

106.5

77.8

31.8

41.5

42.9

41.5

(4.19)

(1.252)

(1.63)

(1.689)

(1.63)

66.7

(3.0

63)

(2.6

26)

117

(5.5

1)(4

.49)

(4.6

1)

9.56(.3764)9.53(.3752)

Positaion of Drain Port(4.508)

(6.06)

(1.10)

19(.75)

38.1

0(1.

5000

) D

ia.

38.0

5(1.

4980

)42

.36(

1.66

8)42

.18(

1.66

1)12

7.00

(5.0

000)

Dia

.12

6.95

(4.9

980)

150

278

115 115

150

231916 (.75

)

(.63

)

(10.94)

(4.528) (4.528)

3

(5.9

1)

(.91

)

(.12

)

22(.87)

100

53(5.91)

(3.937)

(2.09)

80(3.15)

158(6.22)

DEC.Flow Adj. Screw

17(.67) Hex.

97(3.82)

Discharge Port34(1.34) Dia.

"D" Thd. "E" Deep8 Places

Pres. Adj. Screw13(.51) Hex.

INC.

14(.55) Dia. Through28(1.10) Dia. Spotface

Suction Port51(2.01) Dia.

Drain Port"C" Thd.

Filling Port[22(.87) Hex. Head Plug Furnished]

Case Drain Port5(.20) Hex. Soc.

4Places

13.5(.53)

Page 124: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type136

DIMENSIONS INMILLIMETRES (INCHES)

Flange Mtg.: A3H100-FR01KK-10/1080/10954

Foot Mtg.: A3H100-LR01KK-10/1080

X

Model NumbersThread Size Dimensions mm (Inches)C

A3H100-FR01KK-10

A3H100-FR01KK-1080A3H100-FR01KK-10954

Rc 3/4

3/4 BSP.FSAE #12

Install the pump so that the "Filling port" is at the top.

D

M12

1/2-13 UNC

E F

19 (.75)

21 (.83)

95 (3.74)

74.6 (2.94)

H

81 (3.19)

60.6 (2.39)

J

63 (2.48)

50 (1.97)

For other dimensions, refer to "Flange Mtg.".

F

60 12.5

210

196

161.

6(7

.72)

(6.3

62)

129.

5

H

J

161.611

8.5

144

(5.1

0)

(4.6

7)(5

.67)

249.5

17

39

Fully Extended

(2.36) (.49)

(9.82)

(.67)

284.5(11.20)

Position of Drain Port

44.4

5(1.

7500

) D

ia.

44.4

0(1.

7480

)49

.39(

1.94

4)49

.21(

1.93

7)15

2.40

(6.0

000)

Dia

.15

2.35

(5.9

980)

11.14(.4386)11.11(.4374)

(8.27)

(6.362)

(1.54)

23(.91)

373229

(1.2

6)

(1.1

4) 210

32

3

(1.4

6)

(8.2

7)

(.12

)

63

108

165

398(6.496)

165(6.496)

(15.67)

140

220

(1.26)

(2.48)

(4.25)(5.512)

(8.66)

198(7.80)

DEC.

Flow Adj. Screw17(.67) Hex.

103

66.7

45

31.8

88.9

(2.6

26)

(3.5

00)

50.8

45

112(4.06)

(1.77)

(1.252)(2.000)

(1.77)

(4.41)

Suction Port63(2.48) Dia.

"D" Thd. "E" Deep8 Places

Discharge Port34(1.34) Dia.

Pres. Adj. Screw13(.51) Hex.

1/2-13 UNC Thd. 32(1.26) Deep"10954" Design Only

INC.

Drain Port"C" Thd.

Filling Port[27(1.06) Hex. Head Plug Furnished]

22(.87) Dia. Through43(1.69) Dia. Spotface

4Places

Case Drain Port5(.20) Hex. Soc.

View Arrow X

21.5(.85)

Page 125: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

137

PISTON PUMPS

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"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

DIMENSIONS INMILLIMETRES (INCHES)

Flange Mtg.: A3H145-FR01KK*-10/1080/10954

Foot Mtg.: A3H145-LR01KK-10/1080

Model NumbersThread Size Dimensions mm (Inches)

CA3H145-FR01KK-10

A3H145-FR01KK-1080

Rc 3/4

3/4 BSP.F

Install the pump so that the "Filling port" is at the top.

D

M12

F H

22 (.87)

J

95 (3.74)

N

A3H145-FR01KK-10954

SAE #12 1/2-13 UNC

E

1/2-13 UNC

5/8-11 UNC 56.25 (2.215)A3H145-FR01KK1-10954 36 (1.42)

74.6 (2.94)

K

81 (3.19)

60.6 (2.39)

L

63 (2.48)

50 (1.97)56.43 (2.222)

49.21 (1.937)21 (.83)

32 (1.26) 49.39 (1.944)

P

50.75 (1.9980)50.80 (2.0000)

44.40 (1.7480)44.45 (1.7500)

49.39 (1.944) 44.45 (1.7500)49.21 (1.937) 44.40 (1.7480)

For other dimensions, refer to "Flange Mtg.".

Pres. Adj. Screw13(.51) Hex.

INC.

Drain Port"C" Thd.

Flow Adj. Screw19(.75) Hex.

DEC.

220

J

12.5(.49)

161.6

21.5

161.

6

200

(6.3

62)

(7.8

7)

K

L

139

129

152

(5.4

7)

(5.0

8)(5

.98)

22

Fully Extended

74

283.5

(.87)

321.5 (12.66)

(2.91)

(11.16)

Position of Drain Port

66.7

31.8

49

88.9

(2.6

26)

(3.5

00)

50.8

49

111

(1.252)

(1.93)

(2.000)

(1.93)

(4.37)

"P"

Dia

.

152.

40(6

.000

0) D

ia.

152.

35(5

.998

0)

12.73(.5012)12.70(.5000)

39

(8.66)

(6.362)

(.85)

26(1.02)

(1.54)

N

View Arrow X

X

121(4.76)

Discharge Port34(1.34) Dia.

"D" Thd. "F" Deep8 Places

Suction Port63(2.48) Dia.

Case Drain Port5(.20) Hex. Soc.

Filling Port[27(1.06) Hex. Head Plug Furnished]

"E" Thd. "H" Deep

123 270 13

200

398

16548

3(.

12)

29

32

32

(4.843)123

(4.843) (10.63) (.51)

(7.874) (1.89)

(1.26)

140

(1.1

4)

(1.2

6)

(5.5

1)

37

210

(1.4

6) (8.2

7)

212

(15.67)

(6.496)165

(6.496)

(8.35)

198(7.80)

22(.87) Dia. Through43(1.69) Dia. Spotface

4Places

Page 126: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type138

DIMENSIONS INMILLIMETRES (INCHES)

Flange Mtg.: A3H180-FR01KK*-10/1080/10954

Foot Mtg.: A3H180-LR01KK-10/1080

Model NumbersThread Size Dimensions mm (Inches)

CA3H180-FR01KK-10

A3H180-FR01KK-1080

Rc 3/4

3/4 BSP.F

Install the pump so that the "Filling port" is at the top.

D

M12

F H

112 (4.41)

L

A3H180-FR01KK-10954

SAE #12 5/8-11 UNC

E

1/2-13 UNC

5/8-11 UNC 56.25 (2.215)A3H180-FR01KK1-10954 36 (1.42)

74.6 (2.94)

J

97.5 (3.84)

60.6 (2.39)

K

80 (3.15)

50 (1.97)56.43 (2.222)

49.21 (1.937)32 (1.26) 49.39 (1.944)

N

50.75 (1.9980)50.80 (2.0000)

44.40 (1.7480)44.45 (1.7500)

56.43 (2.222) 50.80 (2.0000)56.25 (2.215) 50.75 (1.9980)

For other dimensions, refer to "Flange Mtg.".

123 270 30

200

398

16565

3

29

32

32

(4.843)123

(4.843) (10.63) (1.18)

(7.874) (2.56)

(1.26)

140

(.12

)

(1.1

4)

(1.2

6)

(5.5

1) 37

210

(1.4

6)

(8.2

7)

212

(15.67)

(6.496)165

(6.496)

(8.35)

198(7.80)

Flow Adj. Screw19(.75) Hex.

DEC.

Drain Port"C" Thd.

View Arrow X

X

27.5

160

148.

5

K

12.5

Fully Extended

(.49)

347.5(13.68)H

36.5

5353

61.9

106.

4

79.4

(4.1

89)

(3.1

26)

117129.5

(1.08)

(1.437)

(2.09)(2.09)

(2.437)

(4.61)(5.10)

138

(6.3

0)

(5.8

5)

(5.4

3)161.6

21.5

161.

6

200

(6.3

62)

(7.8

7)

220

39

(6.362)

(.85)

(8.66)

(1.54)

J

24

309.5(.94)

(12.19)

152.

40(6

.000

0) D

ia.

152.

35(5

.998

0)

"N"

Dia

.

12.73(.5012)12.70(.5000)

Position of Drain Port

L

81(3.19)

Case Drain Port5(.20) Hex. Soc.

"D" Thd. 29(1.14) Deep8 Places

Suction Port76(2.99) Dia.

Discharge Port44(1.73) Dia.

Pres. Adj. Screw13(.51) Hex.

INC.

Filling Port[27(1.06) Hex. Head Plug Furnished]

"E" Thd. "F" Deep

22(.87) Dia. Through43(1.69) Dia. Spotface

4Places

Page 127: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

139

PISTON PUMPS

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"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type

A3H16/A3H37/A3H56-*R01KK-10/1080/10950

Spear Parts List

4755493544494653

5

48

40

X

X

Y

Y

30241325341412268172053372

58

59

60

6

28

31 54 10 42 45 11 7 9 21 39 33 43 19 29 22 4 27 23 1

52

48

50

41

36

38

56

3

Z

72 7161626569666468637367

Detail of Section X – X

51 4418

Detail of Section Y – Y

1615

Detail of "Z"

Item Name of PartsA3H16 A3H37 A3H56

Part NumbersQ'ty.

1817

36

37

38

40

41

42

Gasket

Back Up Ring

Cylindrical Roller Bearing

Needle Roller Bearing

Tapered Roller Bearing

Tapered Roller Bearing

Oil Seal

O-Ring

O-Ring

O-Ring

2270-PK313655-3

HMK2025V2

NUP205E

S65 (NBR, Hs70)

2271-PK-313518-3

1310E-PK412440-0

TCN254511 (FKM)

4T-33008

4T-33006

S85 (NBR, Hs70)

SO-NA-G60 SO-NA-G60

SO-NB-P14 SO-NB-P18

SO-NB-P14

SO-NB-P9

SO-NB-P6 SO-NB-P8

SO-NA-A018

SO-NB-P26

4T-30204

2272-PK313433-5

4T-32205R

S95 (NBR, Hs70)

TCN284811 (FKM) TCN355511 (FKM)

S71 (NBR, Hs70)

SO-NB-P21

1

1

1

1

1

1

1

1

1

4

1

1

1

43 O-Ring

44 O-Ring

45 O-Ring SO-NB-P9

68 O-Ring

69 O-Ring

Pump Model Numbers

A3H16-*R01KK-10/1080/10950

A3H37-*R01KK-10/1080/10950

A3H56-*R01KK-10/1080/10950

Seal Kit Numbers

A3H16-01-10

A3H37-01-10

A3H56-01-10

List of Seals and Bearings

List of Seals kit

When ordering seals, please specify the kit number from the table below.

Page 128: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Pressure Compensator Type140

A3H71-*R01KK-10/1080/10950A3H100/A3H145/A3H180-*R01KK*-10/1080/10954

Spear Parts List

Detail of Section X – X Detail of Section Y – Y

Item Name of PartsA3H71 A3H100 A3H180

Part NumbersQ'ty.

2019

29

30

36

38

39

40

Gasket

Back Up Ring

Tapered Roller Bearing

Tapered Roller Bearing

Cylindrical Roller Bearing

Needle Roller Bearing

Oil Seal

O-Ring

O-Ring

O-Ring

2273-PK212356-0

32205JR

33009JR

S100 (NBR, Hs70)

2274-PK212368-5

1310E-PK412440-0

TCN426512 (FKM)

2276-PK412859-1

4T-30210

S110 (NBR, Hs70)

SO-NA-G80 SO-NA-G95

SO-NB-P24

SO-NB-P14 SO-NB-P18 SO-NB-P18

SO-NB-P9 SO-NB-P10A

SO-NB-P9

SO-NA-A021

SO-NB-P32

4T-33206

A3H145

2275-PK212382-6

4T-33206

S125 (NBR, Hs70)

SO-NA-G95

SO-NB-P26

HR33011

2276-PK212301-6

2276-PK412860-9

S130 (NBR, Hs70)

TCN557812 (FKM)TCN507212 (FKM) TCN557812 (FKM)

SO-NA-G105

1

1

1

1

1

1

1

1

1

1

4

1

1

41 O-Ring

42 O-Ring

43 O-Ring

68 O-Ring

69 O-Ring

Pump Model Numbers

A3H71-*R01KK-10/1080/10950

A3H100-*R01KK-10/1080/10954

A3H180-*R01KK-10/1080/10954

Seal Kit Numbers

A3H71-01-10

A3H100-01-10

A3H145-*R01KK-10/1080/10954 A3H145-01-10

A3H180-01-10

List of Seals and Bearings

List of Seals kit

When ordering seals, please specify the kit number from the table below.

YY

X

X

16128142634131572 30 18 11 22 19

58

59

60

39

6

54

17

31

53

10

40 42 12 8 9 23 37 41 27 21 24 4 25 51

50

47

29

36

56

3

494555483543484452

5

46

38

33

717269 616265666468637367432051

Page 129: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

141

PISTON PUMPS

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"A3H" Series Variable Displacement Piston PumpsSingle Pump, Constant Power (Torque) Control Type

Model Numbers

GeometricDisplacement

cm3/rev(cu.in./rev)

MinimumAdj. Flowcm3/rev

(cu.in./rev)

Approx. Masskg (lbs.)

Max.OperatingPressure

MPa (PSI)

Shaft Speed Ranger/min

A3H 37-*R09-***K-10*A3H 56-*R09-***K-10*A3H 71-*R09-***K-10*A3H100-*R09-***K-10*A3H145-*R09-***K-10*A3H180-*R09-***K-10*

37.1 (2.26)

56.3 (3.44)

70.7 (4.31)

100.5 (6.13)

145.2 (8.86)

180.7 (11.03)

16.0 (.976)

35.0 (2.14)

45.0 (2.75)

63.0 (3.84)

95.0 (5.80)

125.0 (7.63)

35 (5080)

2700

2500

2300

2100

1800

1800

600

600

600

600

600

600

23.0 (50.7)

29.0 (63.9)

38.0 (83.8)

48.0 (106)

63.0 (139)

74.2 (164)

30.5 (67.3)

36.5 (80.5)

45.5 (100)

76.0 (168)

91.0 (201)

102.2 (225)

Max. Min.FlangeMtg.

FootMtg.

The maximum shaft speeds shown in the above table are at suction pressure 0 kPa (0 PSIG).

Specifications

3

4

1

Series Number MountingDirection of

RotationControl Type 2Shaft Extension Design Std.

Design Number

*-10K09R-FA3H37

F: FlangeMtg.

L: FootMtg.

F: FlangeMtg.

L: FootMtg.

Viewed from Shaft End

R: Clockwise(Normal)

10

10

10

10

10

10

K : Keyed Shaft

5

K : Keyed Shaft44.45mm[(1.75 IN.) Dia.]

K1: Keyed Shaft50.8mm[(2.0 IN.) Dia.]

09: ConstantPower(Torque)ControlType

Refer to

4Pole Number

of ElectricMotor

4: 4 Poles

6: 6 Poles

AFrequencyof PowerSource

A: 50 Hz

B: 60 Hz

-11Input Power

Setting

5.5: 5.5 kW|

110: 110 kW

Refer to the tableon following pagefor combination.

A3H37(37.1 cm3/rev)

A3H56(56.3 cm3/rev)

A3H71(70.7 cm3/rev)

A3H100(100.5 cm3/rev)

A3H145(145.2 cm3/rev)

A3H180(180.7 cm3/rev)

Model Number Designation

1.2.3.

Available to supply pump with anti-clockwise rotation. Consult Yuken for details.

Design Standards: None ......... Japanese Standard "JIS"80 ............. European Design Standard950 ........... N. American Design Standard (Applicable only for A3H37/56/71)954 ........... N. American Design Standard (Applicable only for A3H100/145/180)

We can also supply spline-type shaft extension. Consult Yuken for details.

4.5.

Mounting type "L" is not available for N. American Design Standard.Shaft extension "K1" is applicable only for N. American Design Standard.

"A3H" Series Variable Displacement Piston Pumps-Single Pump,Constant Power (Torque) Control Type

Graphic Symbol

OM

O M

PP

P

S DR

Page 130: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Constant Power (Torque) Control Type142

Model Numbers

A3H 37

A3H 56

A3H 71

A3H100

A3H145

A3H180

50 Hz60 Hz50 Hz60 Hz50 Hz60 Hz50 Hz60 Hz50 Hz60 Hz50 Hz60 Hz

Pole Number of Electric Motor : 4P

Input Power Setting kW (HP)

Pole Number of Electric Motor : 6P

11(15)

15(20)

18.5(25)

22(30)

30(40)

37(50)

45(60)

55(75)

75(100)

90(120)

110(150)

5.5(7.5)

7.5(10)

11(15)

15(20)

18.5(25)

22(30)

30(40)

37(50)

45(60)

55(75)

75(100)

A3H37

A3H56

0Pressure

Out

put F

low

50004000300020001000

16

12

8

4

U.S.GPM

L/min

0

PSI

Typical Performance Characteristics of Control Type "09" at Viscosity 32 mm2/s [ISO VG32 oils, 40°C (104°F)]

0 5 10 15 20 25 30 35 MPa

0Pressure

Out

put F

low

50004000300020001000

16

12

8

4

20U.S.GPM

L/min

0

PSI

0 5 10 15 20 25 30 35 MPa

0Pressure

Out

put F

low

50004000300020001000

32

24

16

8

U.S.GPM L/min

0

PSI

0 5 10 15 20 25 30 35 MPa

0Pressure

Out

put F

low

50004000300020001000

32

24

16

8

U.S.GPM L/min

0

PSI

0 5 10 15 20 25 30 35 MPa

Pipe Flange KitsFor pipe flange, refer to form of pressure compensator type on page 123.

Combination of pump series and input power setting ( = available combinations)

70

60

50

40

30

20

10

N=1500 r/min

18.5 kW (25 HP)15 kW (20 HP)

11 kW (15 HP)

N=1800 r/min

22 kW (30 HP)

18.5 kW (25 HP)15 kW (20 HP)11 kW (15 HP)

70

60

50

40

30

20

10

120

100

80

60

40

20

N=1500 r/min

22 kW (30 HP)

30 kW (40 HP)

18.5 kW (25 HP)15 kW (20 HP)

N=1800 r/min

22 kW (30 HP)

30 kW (40 HP)

37 kW (50 HP)

18.5 kW (25 HP)

120

100

80

60

40

20

Page 131: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

143

PISTON PUMPS

"A3H

"S

erie

s

A

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Constant Power (Torque) Control Type

A3H71

A3H100

0Pressure

Out

put F

low

50004000300020001000

40

30

20

10

L/min

0

Out

put F

low

40

30

20

10

0

PSI

Typical Performance Characteristics of Control Type "09" at Viscosity 32 mm2/s [ISO VG32 oils, 40°C (104°F)]

0 5 10 15 20 25 30 35 MPa

0Pressure

50004000300020001000

U.S.GPML/minU.S.GPM

PSI

0 5 10 15 20 25 30 35 MPa

0Pressure

Out

put F

low

50004000300020001000

40

50

30

20

10

L/min

0

PSI

0 5 10 15 20 25 30 35 MPa

0Pressure

50004000300020001000

L/minU.S.GPM

Out

put F

low

40

50

30

20

10

0

U.S.GPM

PSI

0 5 10 15 20 25 30 35 MPa

0Pressure

Out

put F

low

50004000300020001000

80

60

40

20

L/min

0

Out

put F

low

80

60

40

20

0

PSI

0 5 10 15 20 25 30 35 MPa

0Pressure

50004000300020001000

U.S.GPML/minU.S.GPM

PSI

0 5 10 15 20 25 30 35 MPa

0Pressure

Out

put F

low

50004000300020001000

80

90

60

40

20

0

PSI

0 5 10 15 20 25 30 35 MPa

0Pressure

50004000300020001000

L/minU.S.GPM

Out

put F

low

80

90

60

40

20

0

L/minU.S.GPM

PSI

0 5 10 15 20 25 30 35 MPa

A3H145

A3H180

150

125

100

75

50

25

18.5 kW (25 HP)

37 kW (50 HP)

30 kW (40 HP)

22 kW (30 HP)

N=1500 r/min150

125

100

75

50

25

45 kW (60 HP)

30 kW (40 HP)22 kW (30 HP)

37 kW (50 HP)

N=1800 r/min

150

175

200

125

100

75

50

25 30 kW (40 HP)37 kW (50 HP)45 kW (60 HP)

55 kW (75 HP)

22 kW (30 HP)

N=1500 r/min

125

150

175

200

100

75

50

2537 kW (50 HP)30 kW (40 HP)

55 kW (75 HP)

45 kW (60 HP)

N=1800 r/min

250

300

200

150

100

50

75 kW (100 HP)

45 kW ( 60 HP)37 kW ( 50 HP)

30 kW (40 HP)

55 kW ( 75 HP)

N=1500 r/min

250

300

200

150

100

50

90 kW (120 HP)

45 kW ( 60 HP)37 kW ( 50 HP)

75 kW (100 HP)

55 kW ( 75 HP)

N=1800 r/min

250

300

350

200

150

100

50

90 kW (120 HP)

45 kW ( 60 HP)

75 kW (100 HP)55 kW ( 75 HP)

N=1500 r/min

250

300

350

200

150

100

50

110 kW (150 HP)

55 kW ( 75 HP)45 kW ( 60 HP)

90 kW (120 HP)75 kW (100 HP)

N=1800 r/min

37 kW ( 50 HP)

Page 132: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Constant Power (Torque) Control Type144

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 133 for the dimensions of mounting bracket.

Flange Mtg.: A3H37-FR09-***K-10/1080/10950

DIMENSIONS INMILLIMETRES (INCHES)

YUKEN

Model NumbersThread Size

Dimensionsmm (Inches)

CA3H37-FR09-***K-10

A3H37-FR09-***K-1080A3H37-FR09-***K-10950

Rc 1/2

1/2 BSP.FSAE #10

D

M12

1/2-13 UNC

E

M10

7/16-14 UNC

F H

22 (.87)

21 (.83)

18 (.71)

20 (.79)

2. Do not touch the screw because it is adjusted at the time of shipment.1. Install the pump so that the "Filling Port" is at the top.

Flow Adj. Screw17(.67) Hex.

DEC.

Input Pwoer Setting Screw

Drain Port"C" Thd.

Fully

Ext

ende

d

94

189.5

41.8

12

90

112

139

(4.4

1)

(3.7

0)

(3.5

4)

(5.4

7)

Fully Extended61.5

12.5 49

47.5

40

(7.46)

(1.65)

(.47)

223(8.78)(2.42)

(.49) (1.93)

(1.87)

(1.57)

25.4

0(1.

0000

0) D

ia.

25.3

7( .

9988

0)

28.1

8(1.

109)

28.0

0(1.

102)

127.

00(5

.000

0) D

ia.

126.

95(4

.998

0)

X

2

121

27.8

3535

57.2

58.7

(2.2

52)

(2.3

11)

154 82

(4.76)

(1.094)

(1.38)(1.38)

(6.06) (3.23)

30.2(1.189)

"E" Thd. "H" Deep4 Places

"D" Thd. "F" Deep4 Places

Discharge Port24(.94) Dia.

Suction Port32(1.26) Dia.

Filling Port[22(.87) Hex. Head Plug Furnished]

1

View Arrow X

13.5

143

114.

5(5

.63)

(4.5

08)

150

Position of Drain Port

114.5

(.53)

(5.91)

16.5(.65)

(4.508)

6.38(.2512)6.35(.2500)

Pres. Adj. Screw13(.51) Hex.

INC.

28(1.10)

Page 133: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

145

PISTON PUMPS

"A3H

"S

erie

s

A

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Constant Power (Torque) Control Type

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 134 for the dimensions of mounting bracket.

Model NumbersThread Size

Dimensionsmm (Inches)

CA3H56-FR09-***K-10

A3H56-FR09-***K-1080A3H56-FR09-***K-10950

Rc 3/4

3/4 BSP.FSAE #12

D

M12

1/2-13 UNC

E

M12

7/16-14 UNC

F H

22 (.87)

21 (.83)

22 (.87)

20 (.79)

2. Do not touch the screw because it is adjusted at the time of shipment.1. Install the pump so that the "Filling Port" is at the top.

Flange Mtg.: A3H56-FR09-***K-10/1080/10950

DIMENSIONS INMILLIMETRES (INCHES)

YUKEN

View Arrow X

112

Fully

Ext

ende

d

102

150

107

(4.4

1)

(4.0

2)

(5.9

1)

(4.2

1)

206

45.5

13

Fully Extended

46.5

62

47.5

40

(8.11)

(1.79)

(.51)

239(9.41)

(1.83)

(2.44)

(1.87)

(1.57)

154

13.5

Position of Drain Port

143

114.

5(5

.63)

(4.5

08)

114.5

(6.06)

(.53)

(4.508)

7.97(.3138)7.94(.3126)

35.3

2(1.

391)

35.1

4(1.

383)

31.7

5(1.

2500

) D

ia.

31.7

0(1.

2480

)

127.

00(5

.000

0) D

ia.

126.

95(4

.998

0)

X

View Arrow X

12.5(.49)

"D" Thd. "F" Deep4 Places

38

27.8

38

35.7

57.2

69.9

(2.2

52)(2

.752

)

129

162

(1.50)

(1.094)

(1.50)

(1.406)

(5.08)

(6.38)

Discharge Port26(1.02) Dia.

Suction Port38(1.50) Dia.

"E" Thd. "H" Deep4 Places

Flow Adj. Screw17(.67) Hex.

Filling Port[22(.87) Hex. Head Plug Furnished]

DEC.

1

89(3.50)

Drain Port"C" Thd.

Pres. Adj. Screw13(.51) Hex.

INC.

Input PwoerSetting Screw

2

16.5(.65)

28(1.10)

Page 134: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Constant Power (Torque) Control Type146

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 135 for the dimensions of mounting bracket.

Flange Mtg.: A3H71-FR09-***K-10/1080/10950

DIMENSIONS INMILLIMETRES (INCHES)

YUKEN

Model NumbersThread Size

Dimensionsmm (Inches)

CA3H71-FR09-***K-10

A3H71-FR09-***K-1080A3H71-FR09-***K-10950

Rc 3/4

3/4 BSP.FSAE #12

D

M12

1/2-13 UNC

E

19 (.75)

21 (.83)

2. Do not touch the screw because it is adjusted at the time of shipment.1. Install the pump so that the "Filling Port" is at the top.

Filling Port[22(.87) Hex. Head Plug Furnished]

1

Input Pwoer Setting Screw 2

View Arrow X

X

113

114

117 17

5(4

.45)

(4.4

9)

(4.6

1)

(6.8

9)

77.8

66.7

(3.0

63)

(2.6

26)

134.5

41.541.5

31.842.9

97167.5

(5.30)

(1.63)(1.63)

(1.252)(1.689)

(3.82)(6.59)

229.5

54.5

14

Fully Extended75

12.5 55

60.5

50

(9.04)

(2.15)

(.55)

264(10.39)(2.95)

(.49) (2.17)

(2.38)

(1.97)

143

114.

5(5

.63)

(4.5

08)

Position of Drain Port

154

114.5

9.56(.3764)9.53(.3752)

127.

00(5

.000

0) D

ia.

126.

95(4

.998

0)42

.36(

1.66

8)42

.18(

1.66

1)38

.10(

1.50

00)

Dia

.38

.05(

1.49

80)

28

(6.06)

(4.508)

(1.10)

Drain Port"C" Thd.

"D" Thd. "E" Deep8 Places

Suction Port51(2.01) Dia.

Flow Adj. Screw17(.67) Hex.

Discharge Port34(1.34) Dia.

DEC.

Pres. Adj. Screw13(.51) Hex.

INC.

Case Drain Port5(.20) Hex. Soc.(Opposite Side)

Fully

Ext

ende

d

19(.75)

13.5(.53)

Page 135: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

147

PISTON PUMPS

"A3H

"S

erie

s

A

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Constant Power (Torque) Control Type

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 136 for the dimensions of mounting bracket.

Flange Mtg.: A3H100-FR09-***K-10/1080/10954

DIMENSIONS INMILLIMETRES (INCHES)

YUKEN

Model NumbersThread Size Dimensions mm (Inches)

CA3H100-FR09-***K-10

A3H100-FR09-***K-1080A3H100-FR09-***K-10954

Rc 3/4

3/4 BSP.FSAE #12

D

M12

1/2-13 UNC

E

19 (.75)

21 (.83)

F

95 (3.74)

74.6 (2.94)

H

81 (3.19)

60.6 (2.39)

J

63 (2.48)

50 (1.97)

2. Do not touch the screw because it is adjusted at the time of shipment.1. Install the pump so that the "Filling Port" is at the top.

Filling Port[27(1.06) Hex. Head Plug Furnished]

1

Input Pwoer Setting Screw 2

118.

5

113

179

142.5

88.9

66.7

(3.5

00)

(2.6

26)

31.850.8

4545

175.5 103

(5.61)

(1.252)(2.000)

(1.77)(1.77)

(6.91) (4.06)

129.

5

(4.6

7)

(4.4

5)

(7.0

5)

(5.1

0)

249.5

59.2

17

Fully ExtendedF

12.5 60

H

J

(9.82)

(2.33)

(.67)

284.5(11.20)

(.49) (2.36)

196

161.

6(7

.72)

(6.3

62)

210

39

161.6(8.27)

(1.54)

(6.362)

11.14(.4386)11.11(.4374)

152.

40(6

.000

0) D

ia.

152.

35(5

.998

0)49

.39(

1.94

4)49

.21(

1.93

7)44

.45(

1.75

00)

Dia

.44

.40(

1.74

80)

Position of Drain Port

View Arrow X

X

Drain Port"C" Thd.

"D" Thd. "E" Deep8 Places

Suction Port63(2.48) Dia.

Flow Adj. Screw17(.67) Hex.

Discharge Port34(1.34) Dia.

DEC.

Pres. Adj. Screw13(.51) Hex.

INC.

Case Drain Port5(.20) Hex. Soc.(Opposite Side)

Fully

Ext

ende

d

23(.91)

21.5(.85)

1/2-13 UNC Thd. 32(1.26) Deep"10954" Design Only

Page 136: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Constant Power (Torque) Control Type148

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 137 for the dimensions of mounting bracket.

Flange Mtg.: A3H145-FR09-***K*-10/1080/10954

DIMENSIONS INMILLIMETRES (INCHES)

YUKEN

Model NumbersThread Size Dimensions mm (Inches)

CA3H145-FR09-***K-10

A3H145-FR09-***K-1080

Rc 3/4

3/4 BSP.F

D

M12

F

19 (.75)

L

63 (2.48)

50 (1.97)

N

56.43 (2.222)

49.39 (1.944)

P

50.80 (2.0000)56.25 (2.215) 50.75 (1.9980)

44.45 (1.7500)A3H145-FR09-***K-10954

21 (.83)49.21 (1.937) 44.40 (1.7480)

SAE #12 1/2-13 UNC

E

5/8-11 UNC

1/2-13 UNC

56.43 (2.222) 50.80 (2.0000)A3H145-FR09-***K1-10954

K

81 (3.19)

60.6 (2.39)

J

95 (3.74)

74.6 (2.94)

H

32 (1.26)

36 (1.42) 56.25 (2.215) 50.75 (1.9980)

2. Do not touch the screw because it is adjusted at the time of shipment.1. Install the pump so that the "Filling Port" is at the top.

Filling Port[27(1.06) Hex. Head Plug Furnished]

Input Pwoer Setting Screw 2

129

149

4949

31.8

66.7

88.9

(2.6

26)

(3.5

00)

111182

(5.87)

(1.93)(1.93)

(1.252)

(4.37)(7.17)

187

113

283.5

73.5

22

139

(5.0

8)(7

.36)

(4.4

5)

(5.4

7)

Fully ExtendedJ

12.5 74

K

L

(11.16)

(2.89)

(.87)

321.5(12.66)

(.49) (2.91)

Position of Drain Port

39

200

220

161.

6(7

.87)

(6.3

62)

161.6

(1.54)

(8.66)

(6.362)

12.73(.5012)12.70(.5000)

152.

40(6

.000

0) D

ia.

152.

35(5

.998

0)

"P"

Dia

.

N

50.8(2.000)

View Arrow X

X

1

Drain Port"C" Thd.

"D" Thd. "F" Deep8 Places

"E" Thd. "H" Deep"10954" Design Only

Flow Adj. Screw19(.75) Hex.

Suction Port63(2.48) Dia.

Discharge Port34(1.34) Dia.

DEC.

Pres. Adj. Screw13(.51) Hex.

INC.

Case Drain Port5(.20) Hex. Soc.(Opposite Side)

Fully

Ext

ende

d

26(1.02)

21.5(.85)

Page 137: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

149

PISTON PUMPS

"A3H

"S

erie

s

A

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Constant Power (Torque) Control Type

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 138 for the dimensions of mounting bracket.

Flange Mtg.: A3H180-FR09-***K*-10/1080/10954

DIMENSIONS INMILLIMETRES (INCHES)

Model NumbersThread Size Dimensions mm (Inches)

CA3H180-FR09-***K-10

A3H180-FR09-***K-1080

Rc 3/4

3/4 BSP.F

D

M16

K

80 (3.15)

70 (2.76)

L

56.43 (2.222)

49.39 (1.944)

N

50.80 (2.0000)56.25 (2.215) 50.75 (1.9980)

44.45 (1.7500)A3H180-FR09-***K-10954 49.21 (1.937) 44.40 (1.7480)SAE #12 5/8-11 UNC

E

5/8-11 UNC

1/2-13 UNC

56.43 (2.222) 50.80 (2.0000)A3H180-FR09-***K1-10954

J

97.5 (3.84)

85.3 (3.36)

H

112 (4.41)

99.8 (3.93)

F

32 (1.26)

36 (1.42) 56.25 (2.215) 50.75 (1.9980)

2. Do not touch the screw because it is adjusted at the time of shipment.1. Install the pump so that the "Filling Port" is at the top.

Filling Port[27(1.06) Hex. Head Plug Furnished]

1

Input Pwoer Setting Screw 2156

53 53

36.5

106.

4

79.4

189 117

113

138

195

309.5

81.9

24

148.

5

Fully ExtendedH

12.5 81

J

K

21.5

Position of Drain Port

200

161.

6

(4.1

89)

(3.1

26)

(4.4

5)

(5.4

3)(7

.68)

(5.8

5)

(7.8

7)

(6.3

62)

220

161.6

12.73(.5012)12.70(.5000)

39

(6.14)

(2.09) (2.09)

(1.437)

(7.44) (4.61)

(12.19)

(3.22)

(.94)

347.5(13.68)

(.49) (3.19)

(.85)

(8.66)

(6.362)

(1.54)

152.

40(6

.000

0) D

ia.

152.

35(5

.998

0)

"N"

Dia

.

L

61.9(2.437)

Drain Port"C" Thd.

Case Drain Port5(.20) Hex. Soc.(Opposite Side)

View Arrow X

X

"D" Thd. 29(1.14) Deep8 Places

Flow Adj. Screw19(.75) Hex.

Suction Port76(2.99) Dia.

Discharge Port44(1.73) Dia.

DEC.

Pres. Adj. Screw13(.51) Hex.

INC.

"E" Thd. "F" Deep

Fully

Ext

ende

d

27.5(1.08)

Page 138: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Load Sensing Type150

A flow control valve is not included with the pump.Install the valve separately.

Specifications

3

4

1

Series Number MountingDirection of

RotationControl Type 2Shaft Extension Design Std.

Design Number

*-10K14R-FA3H37

F: Flange Mtg.

L: Foot Mtg.

F: Flange Mtg.

L: Foot Mtg.

Viewed from Shaft End

R: Clockwise(Normal)

10

10

10

10

10

10

K : Keyed Shaft

5

K : Keyed Shaft[44.45mm (1.75 IN.) Dia.]

K1: Keyed Shaft[50.8mm (2.0 IN.) Dia.]

14: LoadSensingType Refer to

A3H37(37.1 cm3/rev)

10A3H16

(16.3 cm3/rev)

A3H56(56.3 cm3/rev)

A3H71(70.7 cm3/rev)

A3H100(100.5 cm3/rev)

A3H145(145.2 cm3/rev)

A3H180(180.7 cm3/rev)

Model Number Designation

1.2.3.

Available to supply pump with anti-clockwise rotation. Consult Yuken for details.

Design Standards: None ......... Japanese Standard "JIS"80 ............. European Design Standard950 ........... N. American Design Standard (Applicable only for A3H16/37/56/71)954 ........... N. American Design Standard (Applicable only for A3H100/145/180)

We can also supply spline-type shaft extension. Consult Yuken for details.

4.5.

Mounting type "L" is not available for N. American Design Standard.Shaft extension "K1" is applicable only for N. American Design Standard.

"A3H" Series Variable Displacement Piston Pumps-Single Pump,Load Sensing Type

Graphic Symbol

"L""PP"

MO

1.2.3.

Model Numbers

GeometricDisplacement

cm3/rev(cu.in./rev)

Approx. Masskg (lbs.)

Operating PressureMPa (PSI)

Shaft Speed Ranger/min

A3H 16-*R14K-10*A3H 37-*R14K-10*A3H 56-*R14K-10*A3H 71-*R14K-10*A3H100-*R14K-10*A3H145-*R14K-10*A3H180-*R14K-10*

16.3 (.995)

37.1 (2.26)

56.3 (3.44)

70.7 (4.31)

100.5 (6.13)

145.2 (8.86)

180.7 (11.03)

28 (4060) 35 (5080)

3600

2700

2500

2300

2100

1800

1800

600

600

600

600

600

600

600

17.5 (38.6)

22.5 (49.6)

28.7 (63.3)

38.0 (83.8)

47.6 (105)

63.0 (139)

73.4 (162)

26.4 (58.2)

30.0 (66.2)

36.2 (79.8)

45.5 (100)

75.6 (167)

91.0 (201)

101.4 (224)

Rated Max. 3

2

1

Intermittent Min. Flange Mtg. Foot Mtg.

The operating pressure means pump discharge pressure.

The maximum shaft speeds shown in the above table are at suction pressure 0 kPa (0 PSIG).

Load SensingPres. Difference

PMPa (PSI)

1.5 (218)

At the time(of shipment)

Load pressure difference P is adjustable in range of 1.0 -3.0 MPa (145-435 PSI).

Page 139: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

151

PISTON PUMPS

"A3H

"S

erie

s

A

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Load Sensing Type

Pressure vs. Output Flow

Full Cut-off Input Power

0Pressure

Out

put F

low

50004000300020001000

32

36

24

16

8

U.S.GPM L/min

0

PSI

Typical Performance Characteristics of Control Type "A3H71" at Viscosity 32 mm2/s [ISO VG32 oils, 40°C (104°F)]

00 5 10 15 20 25 30 35 MPa

0Full Cut-off Pressure

Full

Cut

-off

Pow

er

50004000300020001000

16

18

12

8

4

HP kW

0

PSI

00 5 10 15 20 25 30 35 MPa

0Pressure

Dra

in

50004000300020001000

5

4

3

2

1

U.S.GPML/min

0

PSI

00 5 10 15 20 25 30 35 MPa

Drain

Pipe Flange KitsFor pipe flange, refer to form of pressure compensator type on page 123.

100

120

140

80

40

60

20

Load Sensing Pressure DifferenceP=1.5 MPa (218PSI)

N=1800 r/min

10

12

14

8

4

6

2

2300 r/min

1800 r/min

1500 r/min

15

20

10

5

1/10 Q 1/8 Q 1/4 Q 1/2 Q 2300 r/min 1800 r/min 1500 r/min

2300 r/min 1800 r/min 1500 r/min

Full Cut-o

ff

Cut-off pressure or less

MAX. Q

Ask Yuken for Performance caracteristics of other series than A3H71.

Page 140: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Load Sensing Type152

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 132 for the dimensions of mounting bracket.

Model NumbersThread Size

CA3H16-FR14K-10

A3H16-FR14K-1080A3H16-FR14K-10950

Rc 1/2

1/2 BSP.FSAE #10

DRc 1/4

1/4 BSP.FSAE #4

E

M10

7/16-14 UNC

Install the pump so that the "Filling Port" is at the top.

Flange Mtg.: A3H16-FR14K-10/1080/10950

DIMENSIONS INMILLIMETRES (INCHES)

X

Load Sensing Port "L""D" Thd.

137.

5

Fully Extended

131.5

124.5

89.5

75.5

31.5

28

89.8

13.5

Position of Drain Port

119

89.8

(4.6

9)

(3.5

35)

126(1.10)

(3.535)

(.53)

(4.96)

49.5

37

39 28

82

81(5

.41)

(3.2

3)

(3.1

9)

174.5

10

205.5(8.09)

(5.18)

(4.90)

(1.95)

(1.46)

(1.54) (1.10)

(6.87)

(.39)

74.5

31.5 31.5

26.2 23.8

(3.52)

(2.97)

(1.24)

(2.93)

(1.24) (1.24)

(1.031) (.937)

52.4

50.8

(2.0

63)

(2.0

00)

6.38(.2512)6.35(.2500)

Position of Pilot Port "PP" 9.5(.37)

25.0

1(.9

85)

24.8

5(.9

78)

101.

60(4

.000

0) D

ia.

101.

55(3

.998

0)

22.2

3(.8

752)

Dia

.22

.20(

.874

0)

View Arrow X

Pilot Port "PP""D" Thd.

Flow Adj. Screw13(.51) Hex.

Suction Port26(1.02) Dia.

Discharge Port19(.75) Dia.

"E" Thd. 19(.75) Deep8 Places

DEC.

Drain Port"C" Thd.

Load Sensing Pres. Difference Adj. Screw13(.51) Hex.

Pressure Adj. Screw14(.55) Hex.

INC.

INC.

Filling Port[22(.87) Hex. Head Plug Furnished]

Position of Load Sensing Port "L"

10(.39)

Page 141: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

153

PISTON PUMPS

"A3H

"S

erie

s

A

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Load Sensing Type

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 133 for the dimensions of mounting bracket.

Model NumbersThread Size

Dimensionsmm (Inches)

CA3H37-FR14K-10

A3H37-FR14K-1080A3H37-FR14K-10950

Rc 1/2

1/2 BSP.FSAE #10

DRc 1/4

1/4 BSP.FSAE #4

E

M12

1/2-13 UNC

F

M10

7/16-14 UNC

H J

22 (.87)

21 (.83)

18 (.71)

20 (.79)

Install the pump so that the "Filling Port" is at the top.

Flange Mtg.: A3H37-FR14K-10/1080/10950

DIMENSIONS INMILLIMETRES (INCHES)

Drain Port"C" Thd.

Load Sensing Pres. Difference Adj. Screw13(.51) Hex.

Pressure Adj. Screw14(.55) Hex.

INC.

INC.

X

92

78

34

58.7

35 35

27.830.2

(3.62)

(3.07)

(1.34)

(1.38) (1.38)

(1.094)(1.189)

57.2

(2.3

11)

(2.2

52)

Fully Extended

146.5

139.5

142

90

189.5

12

49

47.5

40

94(5.5

9)(3

.54)

(3.7

0)

114.5

13.5

114.

5

143

(4.5

08)

(5.6

3)

150

(4.508)

(.53)

(5.91)

6.38(.2512)6.35(.2500)

Position of Drain Port

61.5223(8.78)

(5.77)

(5.49)

(7.46)

(.47)

(1.93)

(1.87)

(1.57)

(2.42)

View Arrow X

Load Sensing Port "L""D" Thd.

Pilot Port "PP""D" Thd.

Flow Adj. Screw17(.67) Hex.

Suction Port32(1.26) Dia.

Discharge Port24(.94) Dia.

"E" Thd. "H" Deep4 Places

"F" Thd. "J" Deep4 Places

DEC.

82(3.23)

28.1

8(1.

109)

28.0

0(1.

102)

127.

00(5

.000

0) D

ia.

126.

95(4

.998

0)

25.4

0(1.

0000

) D

ia.

25.3

7( .

9988

)

12.5(.49)

Filling Port[22(.87) Hex. Head Plug Furnished]

Position of Pilot Port "PP"

Position of Load Sensing Port "L"

28(1.10)

16.5(.65)

Page 142: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Load Sensing Type154

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 134 for the dimensions of mounting bracket.

Model NumbersThread Size

Dimensionsmm (Inches)

CA3H56-FR14K-10

A3H56-FR14K-1080A3H56-FR14K-10950

Rc 3/4

3/4 BSP.FSAE #12

DRc 1/4

1/4 BSP.FSAE #4

E

M12

1/2-13 UNC

F

M12

7/16-14 UNC

H J

22 (.87)

21 (.83)

22 (.87)

20 (.79)

Install the pump so that the "Filling Port" is at the top.

Flange Mtg.: A3H56-FR14K-10/1080/10950

DIMENSIONS INMILLIMETRES (INCHES)

Drain Port"C" Thd.

Load Sensing Pres. Difference Adj. Screw13(.51) Hex.

Pressure Adj. Screw14(.55) Hex.

INC.

INC.

Load Sensing Port "L""D" Thd.

Pilot Port "PP""D" Thd.

Flow Adj. Screw17(.67) Hex.

Suction Port38(1.50) Dia.

Discharge Port24(.94) Dia.

"E" Thd. "H" Deep4 Places

"F" Thd. "J" Deep4 Places

DEC.

X

View Arrow X

94 89

80

36

153

Fully Extended

161.5

154.5

57.2

38

35.7 27.8

38

69.9

62

102

13

206

46.5

47.5

40

107

Position of Drain Port

114.5

13.5

114.

5

143

(6.0

2)

(2.2

52)

(2.7

52)

(4.0

2)

(4.2

1)

(4.5

08)

(5.6

3)

154

(3.70) (3.50)

(3.15)

(1.42)

239(9.41)

(6.36)

(6.08)

(1.50)

(1.406) (1.094)

(1.50)

(2.44)

(.51)

(8.11)

(1.83)

(1.87)

(1.57)

(4.508)

(.53)

(6.06)

7.97(.3138)7.94(.3126)

12.5(.49)

35.3

2(1.

391)

35.1

4(1.

383)

127.

00(5

.000

0) D

ia.

126.

95(4

.998

0)

31.7

5(1.

2500

) D

ia.

31.7

0(1.

2480

)

Filling Port[22(.87) Hex. Head Plug Furnished]

Position of Pilot Port "PP"

Position of Load Sensing Port "L"

19(.75)

28(1.10)

Page 143: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

155

PISTON PUMPS

"A3H

"S

erie

s

A

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Load Sensing Type

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 135 for the dimensions of mounting bracket.

Flange Mtg.: A3H71-FR14K-10/1080/10950

DIMENSIONS INMILLIMETRES (INCHES)

Model NumbersThread Size

Dimensionsmm (Inches)

CA3H71-FR14K-10

A3H71-FR14K-1080A3H71-FR14K-10950

Rc 3/4

3/4 BSP.FSAE #12

DRc 1/4

1/4 BSP.FSAE #4

E

M12

1/2-13 UNC

F

19 (.75)

21 (.83)

Install the pump so that the "Filling Port" is at the top.

Drain Port"C" Thd.

Load Sensing Pres. Difference Adj. Screw13(.51) Hex.

Pressure Adj. Screw14(.55) Hex.

INC.

INC.

Load Sensing Port "L""D" Thd.

Pilot Port "PP""D" Thd.

Flow Adj. Screw17(.67) Hex.

Suction Port51(2.01) Dia.

Discharge Port34(1.34) Dia.

"E" Thd. "F" Deep8 Places

DEC.

X

View Arrow X

9.56(.3764)9.53(.3752)

97106.5

91

43.5

41.5 41.5

42.9 31.8

(3.82)(4.19)

(3.58)

(1.71)

(1.63) (1.63)

(1.689) (1.252)

77.8

66.7

(3.0

63)

(2.6

26)

114

159

174

181

Fully Extended

55

75

12.5

60.5

50

117

(4.4

9)(6

.26)

(4.6

1)

14

229.5

(6.85)

(7.13)

264(10.39)

(2.17)

(2.95)

(.49)

(2.38)

(1.97)

(.55)

(9.04)

143

114.

5(5

.63)

(4.5

08)

154

114.5

Position of Drain Port

28

(6.06)

(4.508)

(1.10)

42.3

6(1.

668)

42

.18(

1.66

1)12

7.00

(5.0

000)

Dia

.12

6.95

(4.9

980)

38.1

0(1.

5000

) D

ia.

38.0

5(1.

4980

)

Filling Port[22(.87) Hex. Head Plug Furnished]

Position of Pilot Port "PP"

Position of Load Sensing Port "L"

Case Drain Port5(2.0) Hex. Soc.

19(.75)

13.5(.53)

Page 144: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Load Sensing Type156

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 136 for the dimensions of mounting bracket.

Flange Mtg.: A3H100-FR14K-10/1080/10954

DIMENSIONS INMILLIMETRES (INCHES)

Model NumbersThread Size Dimensions mm (Inches)

CA3H100-FR14K-10

A3H100-FR14K-1080A3H100-FR14K-10954

Rc 3/4

3/4 BSP.FSAE #12

DRc 1/4

1/4 BSP.FSAE #4

E

M12

1/2-13 UNC

F

19 (.75)

21 (.83)

H

95 (3.74)

74.6 (2.94)

J

81 (3.19)

60.6 (2.39)

K

63 (2.48)

50 (1.97)

Install the pump so that the "Filling Port" is at the top.

Drain Port"C" Thd.

Load Sensing Pres. Difference Adj. Screw13(.51) Hex.

Pressure Adj. Screw14(.55) Hex.

INC.

INC.

Load Sensing Port "L""D" Thd.

Pilot Port "PP""D" Thd.

Flow Adj. Screw17(.67) Hex.

Suction Port63(2.48) Dia.

Discharge Port34(1.34) Dia.

"E" Thd. "F" Deep8 Places

DEC.

X

View Arrow X

49.3

9(1.

944)

49.2

1(1.

937)

152.

40(6

.000

0) D

ia.

152.

35(5

.998

0)

44.4

5(1.

7500

) D

ia.

44.4

0(1.

7480

)

118.

516

3

88.9

103112

90

42.5

(4.06)(4.41)

(3.54)

(1.67)

45 45

50.8 31.8

(1.77) (1.77)

(2.000) (1.252)

66.7

(3.5

00)

(2.6

26)

Fully Extended

196.5

189.5

60

H

12.5

J

K

129.

5

(4.6

7)(6

.42)

(5.1

0)

210

161.6

196

161.

6(7

.72)

(6.3

62)

17

39

(8.27)

(6.362)

(1.54)

249.5

284.5(11.20)

(7.74)

(7.46)

(2.36)

(.49)

(.67)

(9.82)

11.14(.4386)11.10(.4370)

Position of Drain Port

Filling Port[27(1.06) Hex. Head Plug Furnished]

Position of Pilot Port "PP"

Position of Load Sensing Port "L"

Case Drain Port5(2.0) Hex. Soc.

1/2-13 UNC Thd. 32(1.26) Deep"10954" Design Only

23(.91)

21.5(.85)

Page 145: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

157

PISTON PUMPS

"A3H

"S

erie

s

A

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Load Sensing Type

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 137 for the dimensions of mounting bracket.

Flange Mtg.: A3H145-FR14K*-10/1080/10954

DIMENSIONS INMILLIMETRES (INCHES)

Model NumbersThread Size Dimensions mm (Inches)

CA3H145-FR14K-10

A3H145-FR14K-1080

A3H145-FR14K-10954

Rc 3/4

3/4 BSP.F

DRc 1/4

1/4 BSP.F

E

M12

H

19 (.75)

J

32 (1.26)

K

95 (3.74)

L

81 (3.19)

SAE #12 SAE #4 1/2-13 UNC

F

5/8-11 UNC

1/2-13 UNC

21 (.83) 74.6 (2.94) 60.6 (2.39)

A3H145-FR14K1-10954 36 (1.42)

N

63 (2.48)

50 (1.97)

P

56.43 (2.222)

49.39 (1.944)49.21 (1.937)

56.43 (2.222)56.25 (2.215)

Q

50.80 (2.0000)56.25 (2.215) 50.75 (1.9980)

44.45 (1.7500)44.40 (1.7480)

50.80 (2.0000)50.75 (1.9980)

Install the pump so that the "Filling Port" is at the top.

Drain Port"C" Thd.

Load Sensing Pres. Difference Adj. Screw13(.51) Hex.

Pressure Adj. Screw14(.55) Hex.

INC.

INC.

Load Sensing Port "L""D" Thd.

Pilot Port "PP""D" Thd.

Flow Adj. Screw19(.75) Hex.

Suction Port63(2.48) Dia.

Discharge Port34(1.34) Dia.

"E" Thd. "H" Deep8 Places

DEC.

X

View Arrow X

152.

40(6

.000

0) D

ia.

152.

35(5

.998

0)

"Q"

Dia

.

"F" Thd. "J" Deep

121

49

50.8

49

31.8

88.9

66.7

(3.5

00)

(2.6

26)

283.5

22

220

161.6

Position of Drain Port

200

161.

6(7

.87)

(6.3

62)

111

93.5

46

(4.76)

(1.93)

(2.000)

(1.93)

(1.252)

(4.37)

(3.68)

(1.81)

129

171

Fully Extended

222.5

215.5

74

K

12.5

L

N

(11.16)

(.87)

321.5(12.66)

(8.76)

(8.48)

(2.91)

(.49)

139

(5.0

8)(6

.73)

(5.4

7)

12.73(.5012)12.70(.5000)

39

(8.66)

(6.362)

(1.54)

Case Drain Port5(2.0) Hex. Soc.

Filling Port[27(1.06) Hex. Head Plug Furnished]

Position of Pilot Port "PP"

Position of Load Sensing Port "L"

P

26(1.02)

21.5(.85)

Page 146: YUKEN Hydraulic Equipment - Royal Hydraulics, Inc

"A3H" Series Variable Displacement Piston PumpsSingle Pump, Load Sensing Type158

Foot Mounting TypeMounting bracket is common to that of pressure compensator model. Refer to page 138 for the dimensions of mounting bracket.

Flange Mtg.: A3H180-FR14K*-10/1080/10954

DIMENSIONS INMILLIMETRES (INCHES)

Model NumbersThread Size Dimensions mm (Inches)

CA3H180-FR14K-10

A3H180-FR14K-1080

A3H180-FR14K-10954

Rc 3/4

3/4 BSP.F

DRc 1/4

1/4 BSP.F

E

M12

H

32 (1.26)

J

112 (4.41)

K

97.5 (3.84)

SAE #12 SAE #4 5/8-11 UNC

F

5/8-11 UNC

1/2-13 UNC

99.8 (3.93) 85.3 (3.36)

A3H180-FR14K1-10954 36 (1.42)

L

80 (3.15)

70 (2.76)

N

56.43 (2.222)

49.39 (1.944)49.21 (1.937)

56.43 (2.222)56.25 (2.215)

P

50.80 (2.0000)56.25 (2.215) 50.75 (1.9980)

44.45 (1.7500)44.40 (1.7480)

50.80 (2.0000)50.75 (1.9980)

Install the pump so that the "Filling Port" is at the top.

Drain Port"C" Thd.

Load Sensing Pres. Difference Adj. Screw13(.51) Hex.

Pressure Adj. Screw14(.55) Hex.

INC.

INC.

Load Sensing Port "L""D" Thd.

Pilot Port "PP""D" Thd. Flow Adj. Screw

19(.75) Hex.

Suction Port76(2.99) Dia.

Discharge Port44(1.73) Dia.

"E" Thd. 29(1.14) Deep

8 Places

DEC.

X

View Arrow X

"F" Thd. "H" Deep

K

L

N

12.73(.5012)12.70(.5000)

129.5

87.5

40

53 53

61.9 36.5

(5.10)

(3.44)

(1.57)

(2.09) (2.09)

(2.437) (1.437)

106.

4

79.4

(4.1

89)

(3.1

26)

138

179

Fully Extended

244.5

237.5

220

Position of Drain Port

161.6

161.

6

200

(6.3

62)

(7.8

7)

81

12.5

148.

5

(5.4

3)(7

.05)

(5.8

5)

24

309.5

347.5(13.68)

(9.63)

(9.35)

(3.19)

(.49)

(.94)

(12.19)

39

(8.66)

(6.362)

(1.54)

152.

40(6

.000

0) D

ia.

152.

35(5

.998

0)

"P"

Dia

.

N

Filling Port[27(1.06) Hex. Head Plug Furnished]

Position of Pilot Port "PP"

Position of Load Sensing Port "L"

Case Drain Port5(2.0) Hex. Soc.

117(4.61)

21.5(.85)

27.5(1.08)


Recommended