Sauer-Danfoss product overview - ITN Group · Sauer-Danfoss is a comprehensive supplier of mobile...

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Components and integrated systems for the world of mobile hydraulics

Sauer-Danfoss is a comprehensive supplier of mobile system

solutions. We supply markets throughout the world with

hydrostatic transmissions, open-circuit pumps, motors, valves,

steering components and electrohydraulic controls – as either

components or integrated systems. Our extensive product range

draws on 45 years of experience in the design and manufacture

of mobile hydraulics, and during all those years we have been

recognized for our high product quality and the expert service

we provide our business partners throughout the world.

However, we do not rest on our laurels but are constantly striving to

improve our products and increase the level of service we provide.

It is our steadfast goal to keep our products at the forefront of

industrial standards, ready to meet the strictest of demands.

Microprocessors

Electrohydraulic valves

Integrated pump system

Propel motor

Steering components

Joystick

3

4

Hydrostaticsand Mechanical Gearboxes

Sauer-Danfoss offers transmission solutions

for off-highway vehicles, both at component

and system levels. Our product range makes

it possible to cover low, medium and high

powered applications with single and dual

path propulsion drives as well as closed loop

auxiliary transmissions. Electronic controls

from Sauer-Danfoss can be used in a wide

range of mobile applications. The Sauer-

Danfoss product portfolio consists of stan-

dardized products as well as customer and

application-tailored solutions.

Hydrostatic transmission solutions for low,

medium and high-powered vehicles

For low/medium-powered vehicles such as

aerial lifts, skid steer loaders, walk-behind

rollers and industrial forklifts trucks, and for

high-powered vehicles like combines, crawlers,

forestry machinery and rollers, Sauer-Danfoss

offers the right hydrostatic transmission solu-

tions.

• Advanced technology

• Complete family of pump and motor controls

• Compact and low weight

• Large range of motor mounting options

• Integral loop flushing valve option for motors

• Capability to offer system packages

• Proven reliability and performance

• Worldwide sales and service.

Axial piston variable displacement single

and tandem pumps (Series 40 and 42)

• Medium power

• Robust and easily serviced

• 6 sizes of variable displacement pumps

• Complete family of control systems

• Proven reliability and long field experience

• Through drives for auxiliary pumps

• Single or tandem pumps

• Closed circuit

• Pressures up to 350 bar.

Axial piston variable displacement pumps

(Series 90)

• Highest through-drive capability

• High power

• The most technically advanced hydraulic

units in the industry



– manual displacement controls (MDC)

– electrical displacement controls (EDC)

– hydraulic displacement controls (HDC)

– electrical automotive controls (NFPE)

• Proven reliability and performance

• Optimum product configurations attained

by standard porting, mounting, and modular

design

• Compact and light-weight

• Closed circuit


Axial piston fixed and variable displacement

motors (Series 90)

• Motors in SAE-flange and cartridge

configuration

• Cartridge motors designed for direct

installation in compact planetary drives

• 6 sizes of fixed displacement motors in

SAE-flange configuration

• 3 sizes of fixed displacement motors in

cartridge configuration

• 2 sizes of variable displacement motors in

SAE-flange and cartridge configuration

• Variable motor with 3:1 displacement ratio

• Variable motors available with electro-

hydraulic or hydraulic two-position control

• Short installed length


Integrated pump systems

• Simplified hydraulic circuit

• Lower power loss

• Low noise

• SAE 3 or customer mounting flange

• Flexible drive coupling

• Short installation length

• NFPF transmission control

• Integrated auxiliary pump

– axial piston load sensing (LS) pump, 57 cm3/rev

– cast iron gear pump, 44 cm3/rev

• Temperature control

• Pressures to 480 bar for closed circuit 75 cm3/rev

• Pressures to 260 bar for open circuit 44 cm3/rev

• Pressures to 350 bar for open circuit 57 cm3/rev.

SERIES 90

INTEGRATED

PUMP SYSTEM,

IPS-1

SERIES 51

AND 51-1

5

SERIES 40

Bent axis variable displacement motors

(Series 51 and 51-1)

• The series 51 and 51-1 motor, advanced

technology of today

• 4 sizes in DIN ISO-Flange Configuration,

60 cm3 to 160 cm3

• 4 sizes in Cartridge Configuration, 60 cm3

to 160 cm3, designed for direct installation

in compact planetary drives

• Large displacement ratio (5:1)



• Speeds to 7000 min-1


Axial piston fixed and variable displacement

motors (Series 40)

• Robust and easily serviced

• 4 sizes of fixed displacement motors

• Compact



Axial piston two-position LV-motors

• 3 sizes of variable displacement motors


• Compact

• Variable motor with 3:1 displacement ratio.

Compact drives

• Complete family of 2 compact wheel drives,

2 roller drives and 6 hydrostatic motor frame sizes

• Optimised performance by modular design

• Designed for shortest installed package

• Parking brakes with full input torque capability

• Series planetary gearing for high efficiency

• Separate oil systems for planetary gearbox

and hydrostatic motor.

Transit mixer pump and motor TMP/TMM

• Proven rotating group

• Electrical pump displacement control

• Significant noise reduction

• Significant reduction of the envelope size

• Pressure up to 420 bar.

Transit mixer gearbox TMG

• High output torque

• High power density

• Drum swivel angle +/- 6°

• Splash lubrication

• Separate oil systems

• Low weight.

SERIES CG TMM

TMPSERIES 40 SERIES 42

Technical Data Axial Piston Variable Displacement Pumps Series 40

Frame Sizes

Dimension 025 035 044 046Displacement cm3 25 35 44 46Minimum Speed min-1 500 500 500 500Rated Speed min-1 4000 3600 3300 4000Maximum Speed min-1 5000 4500 4100 4100Theoretical Torque Nm / bar 0.40 0.56 0.70 0.73

WeightSingle Pumps kg 19 25 25 33Tandem Pumps kg 25 45 45 59

Technical Data Axial Piston Variable Pumps Series 42

Frame Sizes

Dimension 028 041Displacement cm3 28 41Minimum Speed min-1 500 500Rated Speed min-1 3400 3200Maximum Speed min-1 3750 3600Theoretical Torque Nm / bar 0.45 0.65Weight kg 34.5 42

Technical Data Axial Piston Variable Displacement pumps Series 90

Frame SizeDimension 042 055 075 100 130 180 250

Displacement cm3 42 55 75 100 130 180 250Minimum Speed min-1 500 500 500 500 500 500 500Rated Speed min-1 4200 3900 3600 3300 3100 2600 2300Maximum Speed min-1 4600 4250 3950 3650 3400 2850 2500Max. Attainable Speed min-1 5000 4700 4300 4000 3700 3150 2750Theoretical Torque Nm / bar 0.67 0.88 1.19 1.59 2.07 2.87 3.97Weight (with Control MA) kg 34 40 49 68 88 136 154

Technical Data Axial Piston Fixed and Variable Displacement Motors Series 90

Frame SizeDimension 030 042 055 075 100 130

Displacement cm3 30 42 55 75 100 130

Rated Speedmax. Angle min-1 4200 4200 3900 3600 3300 3100min. Angle min-1 - - 4600 4250 - -

Maximum Speedmax. Angle min-1 4600 4600 4250 3950 3650 3400min. Angle min-1 - - 5100 4700 - -

Max. Attainable Speed max. Angle min-1 5000 5000 4700 4300 4000 3700Theoretical Torque Nm / bar 0.48 0.67 0.88 1.19 1.59 2.07Max. Flow l / min 138 193 234 296 365 442Max. Corner power kW 110 155 187 237 292 354

Weight Fixed MotorSAE-Flange kg 11 15 22 26 34 45Cartridge kg - 21 26 33 - -

Weight Variable Motor SAE-Flange kg - - 39 44 - -Cartridge kg - - 40 46 - -

Technical Data Integrated pump systems Series IPS-1 and -2

Frame Sizes

Dimension IPS-1 IPS-2Displacement cm3 75 57 75 44Minimum Speed min-1 500 500Rated Speed at maximum displacement min-1 2450 3000Maximum Speed at maximum displacement min-1 2600 3300Theoretical Torque Nm / bar 1.19 0.91 1.19 0.70Weight (with Control MA) kg 96 85

The above data gives an overveiw of standard components. For special requests contact Sauer-Danfoss.

Technical data Hydrostatics and Mechanical Gearboxes

Technical Data Axial Piston Fixed and Variable Displacement Motors Series 40

Frame Sizes

Dimension 025 035 044 046Displacement cm3 25 35 44 46

Rated Speedmax. Displ. min-1 4000 3600 3300 4000min. Displ. min-1 - 5300 4850 5000

Maximum Speed max. Displ. min-1 5000 4500 4100 4100Theoretical Torque Nm / bar 0.40 0.56 0.70 0.73Max. Flow l / min 122 158 180 189Max. Corner Power kW 71 92 105 110

WeightFixed Motor kg 11 11 11 14Variable Motor kg - 21 21 23

Technical Data Bent Axis Variable Displacement Motors Series 51 and 51-1

Frame SizeDimension 060 080 110 160 250

Displacementmax. Angle cm3 60.0 80.7 109.9 160.9 250.0min. Angle cm3 12.0 16.1 22.0 32.2 50.0

Rated Speedmax. Angle min-1 3600 3100 2800 2500 2200min. Angle min-1 5600 5000 4500 4000 3400

Maximum Speedmax. Angle min-1 4400 4000 3600 3200 2700min. Angle min-1 7000 6250 5600 5000 4250

Theoretical Torquemax. Angle Nm / bar 0.95 1.28 1.75 2.56 3.98min. Angle Nm / bar 0.19 0.26 0.35 0.51 0.80

Max. Flow l / min 264 323 396 515 675Max. Corner Power kW 330 403 492 644 850Weight (with Control N2) kg 28 32 44 56 86

Technical Data Axial Piston Pumps and Motors Series TMP / TMM

Frame Sizes

Dimension 070 089Displacement cm3 69.8 89.0Minimum Speed ( Variable Pump) min-1 400 400Rated Speed max. Angle min-1 2900 2900Theoretical Torque Nm / bar 1.11 1.42Max. Flow l / min 223 258Max. Corner Power Fixed Motor kW 156 181

Weight Variable Pump kg 61 61Fixed Motor kg 35 35

Technical Data Compact Drives Series CW/CR

Motor Frame Displacement Style1) Compact Wheel CompactSeries Size cm3 Drives Roller Drives

CW 12 CW 18 CR 31 CR 51042 42.0 F • •042 42.0 V • •055 55.0 F • • •

90 055 55.0 V • •075 75.0 F • • •075 75.0 V060 60.0 V • •

51 080 80.7 V • • •110 109.9 V • •

Maximum Qutput Torque Nm 12000 18000 31000 51000Maximum Output Speed min-1 200 180 50 50Gear Ratio 2) 3) 45 - 57 : 1 50 - 73 : 1

• Available Frame Size 1) F = Fixed Motor, V = Variable Motor 2) 18 - 22 - 27 - 35 - 42 - 51 : 1 3) 26 - 36 - 42 - 51 : 1


Technical Data Axial Piston 2-Position LV-Motors

Frame Sizes

Dimension LV25 LV30 LV35Maximum Displacement cm3 / rev 25 30 35Maximum Output Speed – max. Dispalcement rpm 4000 3900 3800Maximum Output Speed – reduced Displacement rpm 5500 5250 5000Maximum Applied Pressure bar 415 350 280Continuous Operating Pressure bar 210 175 140Continuous Applied Output Power kW 14.9 14.9 14.9Weight kg 15.4 15.4 15.4Theoretical Torque Nm / bar 0.4 0.48 0.56

Hydrostatics and Mechanical Gearboxes continued...

Technical Data Transit Mixer Gearbox TMG

Frame Sizes

Dimension HPM 51.2 HPM 61.2 HPM 71.2Maximum Output Torque Nm 51000 61000 71000Gear Ratio 102 112 131Displacement per Drum Revolution cm3 - - -Max. Output Speed min-1 20 20 20Lubrication Oil Capacity l 12 16 16Weight (without Lubrication oil) kg 253 325 333Drum Size m3 8 10 10

6

Sauer-Danfoss offers a wide variety of open

circuit products, fixed and variable displace-

ment pumps, solutions for on and off high-

way vehicles and equipment for construc-

tion, material handling, farm industry and

many other areas.

Fixed displacement gear pumps and motors

and variable displacement piston pumps are a

perfect choice when equipping applications

like fork lift trucks, tractors and road rollers.

Our wide range of motors, piston, gear and

orbital types, are extensively used in the

mobile Industry.

Our program includes tailor-made pump solu-

tions, in which several functions are integrated

in one body to optimise size and cost.

By combining products we can offer system

solutions, like fan drive systems for buses,

wheel loaders and other heavy equipment.

Features and benefits:

• Motor inlet pressures up to 250 bar

• Full series operation capability

• European and SAE flange and shaft options

• O-ring boss ports, European 4-bolt ports

• Radial case drain option

• European/metric options

• Integral valves (special rear cover)

• Fan drive versions with integral control and

relief valves.

Gear pumps and motors

For light vehicles such as aerial lifts, greens

and fairway mowers and electric forklifts,

Sauer-Danfoss offers aluminum pumps in the

SKP1 and SKP2 ranges and YCC pumps where

compact multi-section pumps are required.

The pumps feature: Integral valves, pressure

balanced design for high efficiency, and

extruded aluminum bodies for high strength.

For medium-sized vehicles such as tractors,

IC forklifts and skid steers we offer the 25SP

aluminum pump or the cast iron D Series

pump, where a heavier duty pump is required.

Both pumps feature: SAE A and B mounts,

integral valves, and high-performance

DU bushings.

For larger off-highway vehicles like tractors,

backhoe loaders, dumpers and telescopic

handlers, we offer the SNP3 as well as the heavy

duty 35CI range of cast-iron pumps.

Many combinations of the pumps

mentioned are available as multiple

units made to fit any need.

Open circuit piston pumps

The scope of the product family is a new

variable OC pump designed primarily for the

mobile equipment market. This pump has

been optimised to excite the marketplace

with regard to options, life, package size and

installation cost.

Axial piston variable displacement pumps

(Series 45)

• Robust and easily serviced design



• Complete family of control systems.

Open circuit gear units andaxial piston pumps

FANDRIVESERIES 45

PISTON PUMP

SKP2

PUMP

7

Special features:

• Ability to offer complete systems

• Smaller package size

• Lower noise

• High quality perception.

INTEGRATED

SYSTEM

INTEGRATED

SYSTEM

Integrated Packages

An integrated hydraulic package is a

combination of pumps, valves, filters, fittings,

pipework, ports, P.T.O.s etc.

Package pumps can be considered as:

• Simple: a) A tandem gear pump with special

inlet adapter, or b) a solo gear pump with

filter and external gear

• Intermediate: A tandem gear pump with

customised mounting, filter mount relief

valve and external gear

• Complex: 2 gear pumps and 1 piston pump

with 3 filter mounts, 6 valves, custom mount,

24 ports, gear drive train, internal galleries

replacing pipework, mount for 3rd party

valve.

Cost-effective system integration

Integrated package pumps are ideal solutions

for the manufacturers of agricultural and

on-highway vehicles. Over the last 12 years,

Sauer-Danfoss has participated in many in-

depth studies on the cost-effectiveness of

system integration, and it has consistently been

shown that savings of 30% are absolutely

realistic and achievable.

Sauer-Danfoss is prepared to offer help with

cost analyses of any current or new system with

a view to its integration potential. Our software

package is just one of the tools we use in these

studies.

Technical dataOpen circuit gear units and

axial piston pumps

Technical Data Axial Piston Variable Displacement Pumps Series 45

Units L25C L30D K38C K45D H57B H75D G74B G90CDisplacement cm3 25 30 38 45 57 75 74 90Cont. Pressure bar 260 210 260 210 310 210 310 260Max. Pressure bar 350 300 350 300 400 300 400 350Rated Speed rpm 3200 3200 2650 2650 2600 2400 2400 2200Max. Speed rpm 3600 3600 2800 2800 3200 2800 2800 2600Theoretical Torque Nm / bar 0,40 0,48 0,60 0,72 0,91 1,19 1,18 1,43Weight kg 19 19 19 19 24 24 29 29


Gear Motor product ranges

Displacement RatedFrame Model Mounting Range PressureSize Name Flange (cc / rev) ( bar) FeaturesGroup 1 SKU1 European 4-bolt & 2.6 - 12 250 Unidirectional (SKU1) & bi-rotational (SKM1)

SKM1 SAE “A-A” 2-bolt – SAE “A-A” 9T spline, 1:8 & 1:5 taper, 12 & – keyed 12.7mm– O-ring boss ports, Euro 4-bolt ports– European/metric options

Group 2 SNU2 European 4-bolt & 8.4 - 25.2 250 Unidirectional (SNU2) & bi-rotational (SNM2)SNM2 2-bolt flanges – SAE “A” 9T spline, 1:8 & 1:5 taper,

SAE “A” 2-bolt – 15 & 15.875 mm keyed– O-ring boss ports, Euro 4-bolt ports– Radial case drain option– European/metric options– Integral valves (special rear cover)– Fan drive versions with integral control and relief – valves

Group 3 SNU3 European 4-bolt 22.1 - 63.4 250 Unidirectional (SNU3) & bi-rotational (SNM3)SNM3 flanges – SAE “B” 13T spline, 1:8 & 1:5 taper, 22; 22.225

SAE “B” 2-bolt – & 24mm keyed– O-ring boss ports, SAE B &Euro 4-bolt ports– European/metric options– Motor mounted fan drive versions control – and relief valves

Gear Pump product ranges

Displacement RatedFrame Model Mounting Range PressureSize Name Flange (cc / rev) ( bar) Features

Group 0.5TFP 50 Special 2-bolt 0.25 - 1.2 180 Special power-pack versions

Bi-rotational pump version

Group 1SNP 1 European 4-bolt 1.2 - 7.7 250 Available with internal drain relief valveSKP 1 SAE ’’A-A’’ 2-bolt 1.2 - 12 Special power-pack versions

Group 1.5YCC SAE ’’A’’ 2-bolt 9.5 - 14 172 Compact multiple pump configuration

(Multiple Pumps)

Group 2SKP 2 European 4-bolt etc. 3.9 - 25.2 250 Available with 1)Priority flow divider 2)Flow

SAE ’’A’’ 2-bolt control valve 3)Internal/external drain relief valves

Group 2.525 SP SAE ’’A’’ 2-bolt 20.0 - 45.0 250 Available with 1) Priority flow divider 2) Single

SAE ’’B’’ 2-bolt inlet Grp 2.5 + Grp. 2.5 and Grp 2.5 + Grp 2 tandems

Group 2.5 cast ironD Series SAE ’’A’’ 2-bolt 7.0 - 41.0 241 Cast-iron range

SAE ’’B’’ 2-bolt Single and compact multiple units

Group 3SNP 3 European 4-bolt etc. 22.1 - 88.2 250 Available with 1) Integral relief valve

SAE ’’B’’ 2-bolt 2) Priority flow divider

Group 3.535 CI SAE ’’B’’ 2 & 4 bolt 26.0 - 70.0 275 Special variants with integral

SAE ’’C’’ 4 bolt charge-pressure priority valve

8

Motors

TMT

OMT OMV

OMS

Sauer-Danfoss motors are light and compact

and, therefore, easy to install in equipment

such as forklift trucks, grass-cutters,

winches, fishing vessels and injection

moulding machines.

Orbital motors

The motors vary in size (rated displacement)

from 8 cm3 (0,49 in3) to 800 cm3 (48,91 in3)

per revolution.

Speeds range from a top speed of approx.

2,500 min-1 for the smallest type and up to

approx 600 min-1 for the largest type.

Maximum operating torques vary from 13 Nm

(115 in-lbs) to 2,700 Nm (24,000 in-lbs) (peak)

and maximum outputs are from 2.0 kW (2.7 hp)

to 70 kW (95 hp).

Characteristic features

• Smooth running over the entire speed range

• Constant operating torque over a wide

speed range

• High starting torque

• High return pressure without the use of

drain line (high pressure shaft seal)

• High efficiency

• Long life under extreme operating conditions

• Robust and compact design

• High radial and axial bearing capacity

• For applications in both open and closed

loop hydraulic systems

• Suitable for a wide variety of hydraulic fluids.

The product range is characterised by technical

features appealing to a large number of

applications and by motors that can be

adapted to a given application.

9

OMM

OMR

OMP

OMEW

Technical data

Orbital motors

Motor type Displacement Pressure drop Flow Max output(cont. / Int / Peak) (cont) (int)

cm3 bar l/min KW(in3) (psi) (gpm, US) (HP)

OML 8 - 32 70 / 125 / 140 16 2(0,49 - 1,95) (1000 / 1800 / 2000) (4,2) (2,7)

OMM 8 - 50 100/ 140 / 200 20 3,2(0,49 - 3,07) (1450 / 2000 / 2900) (5,5) (4,4)

OMP 25 - 400 140 / 175 / 200 60 13(2,96 - 23,80) (2000 / 2500 / 3300) (16,0) (18)

DH 36 - 400 125 / 165 60 12(2,20 - 23,80) (1800 / 2400) (16,0) (16,0)

OMR 50 - 375 175 / 200 / 225 60 15(3,15 - 22,72) (2500 / 2900 / 3300) (16,0) (20)

DS 50 - 375 140 / 175 60 13(3,15 - 22,72) (2000 / 2500) (16,0) (18)

OMH 200 - 500 175 / 200 / 225 75 18,5(12,28 - 28,72) (2500 / 2900 / 3300) (20,0) (25)

OMEW 100 - 315 200 / 210 / 225 60 15(6,10 - 18,92) (2900 / 3000 / 3300) (16) (20)

OMS 80 - 400 175 / 210 / 225 75 21(4,91 - 23,98) (2500 / 3000 / 3300) (20,0) (28)

OMT 160 - 500 200 / 240 / 280 125 40(9,83 - 31,95) (2900 / 3500 / 4050) (33,0) (54)

TMT 250 - 630 250 / 350 / 400* 125 70(15,25 - 38,43) (3600 / 5000 / 5800) (33,0) (95)

OMV 315 - 800 200 / 240 / 280 200 64(19,18 - 48,91) (2900 / 3500 / 4050) (53,0) (87)

Orbital Motor overview


PVG PROF 1 PVE

10

As flexibility and functional integration are

the hallmarks of our product range,

Sauer-Danfoss valves meet literally any

need. The modularity of our proportional

and directional valves, the variety of our

cartridge valves – as well as the simplicity of

our advanced CAN bus communication

system – mean that Sauer-Danfoss valves

are used in practically any type of machine

from road building and construction

machinery to agriculture and forestry

equipment.

Proportional valves type PVG

PVG proportional valves are a modular concept

which enable bankable sections to perform

many individual tasks. One valve group might

contain up to ten sections, each featuring load

independent flow control that operates on the

load sensing principle. Flow up to 240 l/min per

section and pressure up to 400 bar is available.

Electronic features:

• Infinite flow regulation

• Flow adjustment to limit the max. oil flow by

up to 75%

• Ramp generator for soft start/stop of

movements

• Flow rate control proportional to an

external speed signal

• Alarm logic for monitoring up to eight

functions

• Position control

• Integrated directional indicator

• Fault monitoring

• Fault signal.

The advantages of the Sauer-Danfoss

concept include:

• The possibility of implementing intelligent

control functions

• Components for flexible systems

• Communication via the CAN bus

• Reduced wiring

• Programmable control system

• Diagnostics

• EMC immunity ensures high safety with

regard to electro-magnetic compatibility.

Valves

11

12

EHV-valve

The EHV-valve is a complete family of stackable,

solenoid-controlled, pilot-operated valve mo-

dules. The EHV-valve is available in open-center

and closed-center versions and to be used with

fixed or variable displacement pumps.

Operational characteristics:

• Flow rates from 4-75 l/min

• Maximum inlet flow 95 l/min unload module

• Maximum operating pressure 220 bar

• Modular design permits maximum applica-

tion flexibility from standard sections

• Valves may be mounted in any orientation

for design flexibility.

Directional control

Sauer-Danfoss is the manufacturer of mobile

control valves for applications up to 75 l/min.

Typical uses include controlling hydraulic

systems in backhoes, trenchers and aerial lifts.

For the home, Sauer-Danfoss is the leading

producer of valves for lawn and garden care

equipment.

Of the parallel circuit valves, the standard

models are equipped with handles. Joystick

control options are available for certain valves

used on utility trucks, lawn and garden tractors,

forklifts and skid steer loaders. The 1627/1637,

our most popular in the 37.85 l/min mono-

block family, allows the operation of more than

one function at a time. Load check features are

provided for transition spool timing. Serial

valves used in skid steer loaders are available in

two- and three- spool versions. The two-spool

valve in the 1025/1225 75 l/min valve family

has a tandem circuit which directs priority flow

to the number one spool to provide full power

and speed to the operation at hand. For

applications that require individual sections for

each spool, Sauer-Danfoss presently offers

three parallel stack valves: The 1325, a 75 l/min

valve, and the 1125, a 37.85 l/min valve. Both

are equipped with the same features as our

third parallel stack valve; the 1681 mono-stack

56.78 l/min valve.

The mono-stack valve parallel circuit combines

the lower manufacturing cost of a mono-block

with the versatility of a stack valve. The design

eliminates between-section leakage and spool

bind. These valves are available with joystick

control options and offer from two to six spools

as a standard. A single spool add-on section –

to be used in any application requiring cylinder

port options – is also available.

The 1618/1638 valve family offers pilot-ope-

rated checks for all work ports at 37.85 l/min.

These models also provide a low leakage check

feature. Two single spool valves, the 1500 – a

26 l/min valve – and the 1530 – a 23 l/min valve

– offer low leakage and a compact design.

Custom-designed valves are available

with load checks.

HICs and cartridge valves

HIC is short for Hydraulic Integrated Circuits.

In addition to the standard range, blocks can

be specially designed to meet customer

requirements. The use of HICs substantially

reduces the number of external connections.

At the same time it cuts installation time, saves

space and weight, improves system perfor-

mance and simplifies maintenance.

Motor blocks

The Sauer-Danfoss range of motor blocks offers

maximum flexibility and numerous application

possibilities. Typical application areas are not

confined to the mobile sector, there are also

countless application possibilities in the marine

and industrial fields.

VALVES continued ...

EHVDIRECTIONAL

CONTROL

13

SOLENOIDSOLENOID

CARTRIDGE

Cartridge valves

Sauer-Danfoss manufactures more than

4,000 different types of control and regulating

valves in cartridge versions.

The range of pressure-regulating valves

includes single-shock, double-shock, sequence,

pressure reducing, and overcenter valves.

They allow flow up to 380 l/min and pressure

up to 420 bar.

The range of flow-regulating valves includes

pressure-compensated flow-regulating valves,

flow dividers/combiners, and needle valves.

Solenoid operated directional control valves

The range of solenoid valves includes two-way,

three-way, and four-way two and three position

valves. They allow flow up to 225 l/min and

pressure up to 350 bar.

Electro-proportional pressure

and flow control valves

The range of proportional valves includes

pressure reducing, relief, and flow control

valves. They allow flow up to 75 l/min and

pressure up to 350 bar.

14

Steering components and systems

OTP

STEERING

COLUMN

OSPC LS/

OSPF LSOSPR

Characteristic features for steering units

• Low steering torque: From 0,5 Nm to 1,8 Nm

in normal steering situations

• Low noise level

• Many types available: Open center None

reaction, Open center Reaction, Load

Sensing, Load Sensing Reaction

• One or more built-in valve functions:

Relief valve, chock valves, none return

valve in p-line and in LS-line

• Optional port connections (according to ISO,

SAE or DIN standards).

Light vehicles

For light vehicles such as garden tractors,

municipal vehicles, lawn mowers, small forklift

trucks etc., Sauer-Danfoss offers OSPM hydro-

static steering units.

Special principal OSPM characteristics are:

• Compact design and small dimensions

• Optional integrated steering column

• Integrated fittings in end ports.

Small and medium-sized vehicles

Small and medium-sized vehicles can be

equipped with an OSPB, OSPC, OSPF or OSPR

unit. Typical applications are tractors,

harvesters, forklift trucks and small construc-

tion machines.

Sauer-Danfoss offers steering solutions

– system level as well as component level.

Our product range makes it possible to

cover applications of all types – ranging

from ordinary 2-wheel steering (also known

as Ackermann steering) to articulated

steering, complicated 4-wheel steering,

automatic steering (e.g. by sensor) and

remote controlled steering via satellite.

The primary Sauer-Danfoss steering

components can be grouped as follows:

• Steering units with displacements from

40 cm3 to 1000 cm3 per revolution, (flow up

to 100 l/min, steering pressure up to 210 bar)

• Mini steering units with displacements from

32 cm3 to 100 cm3 per revolution, (flow

up to 20 l/min, system pressure up to 125 bar)

• Steering columns: fixed, tiltable and or

telescopible.

• Priority valves (flow up to 160 l/min, steering

pressure up to 210 bar)

• Flow amplifiers (flow up to 400 l/min,

steering pressure up to 210 bar)

• Electro-hydraulic power steering (flow up to

100 l/min, steering pressure up to 250 bar).

OSPM

15

EHPS

OSPL

OSPQ

OSPD

OSQ

The OSBP, OSPC and OSPF steering units can

also be used for heavy vehicles such as large

tractors, combine harvesters, loaders and

dumpers. However, for vehicles of that size,

Sauer-Danfoss has specifically designed the

OSPQ and OSPD. These steering units are

designed with variable displacement to make

emergency steering possible on even heavy

machines. The unit change automatically to

lowest displacement in case of no pump oil

supply.

Large vehicles

The OSPL steering unit is particularly suitable

for loaders and dumpers where the steering

flow can reach 100 l/min. For vehicles with a

total weight even exceeding 100 tons and a

needed steering flow of up to 400 l/min, Sauer-

Danfoss has engineered the OSQ flow amplifier.

On loaders, large forklift trucks, dumpers, large

tractors, and other heavy vehicles, there is often

a need for electrically actuated steering in the

form of a joystick or automatic steering as

alternative to the normal steering wheel mode.

For such purposes Sauer-Danfoss has created

the EHPS system.

The EHPS system has the following advantages:

• High steering pressure requiring smaller

cylinders and oil flow

• Low pilot pressure (max. 30 bar) giving an

extremely low noise level in the cab

• Minimal jerks on vehicles with articulated

steering

• Optional combination with Sauer-Danfoss

PVG 32 proportional valves

• Possible to emergency-steer even heavy

vehicles.

Technical dataSteering components and systems

Concept Types Components Recommended Max. steering Displacement Accessoriesoil flow l/min pressure bar cm3/rev.

Hydromechanical steering TAD TAD 10 - 16 70 100, 160 Steering column:OTPB and OTP-TT

Hydrostatic steering OSP OSPM 3 – 20 125 32 – 100 Steering column:OTPM

OSPB 5 – 80 210* 50 – 1000 Steering column:OTPB and OTP-TT.Valve blocks: OVP

OSPR 7 – 32 175 70 – 315 Steering column:OTPB og OTP-TT

OSPC 4 – 50 210* 40 – 500 Steering column:OTPB og OTP-TT.

OSPC LS 4 – 40 210* 40 – 400 Steering column:OTPB og OTP-TT.

OSPF LS 4 – 40 210* 40 – 400 Priority valve:OLS og OLSA.

OSPD LS 7 – 44 210* 70 – 440

OSPQ LS 8 – 32 210* 80 – 320

OSPL LS 52 – 100 210 520 – 1000 Steering column:OTPB and OTP-TT.Priority valve: OLS.Valve block: OVPL.

OSQ OSQ + OSPBX 64 – 400 210 640 – 4000 Steering column:OTPB and OTP-TT for

OSPBX.

EHPS type 0 EHPSV + OSPCX up to 100 250 Steering column:OTPB and OTP-TT for

OSPCX.

Electrohydraulic steering EHPS type 1 EHPSV + up to 100 250 Steering column:OSPCX + OTPB and OTP-TT for

PVE OSPCX.Joystick.

EHPS type 2 EHPSV + up to 100 250 Wheel and steering wheel.OSPCX +

PVED

* Steering pressure >175 bar with special spool/sleeve set only.


16

Electrohydraulic components and systems

SENSORSDISPLAYS

PC-SOFTWARE

USER INTERFACE

TOOLS

Sauer-Danfoss offers a large variety of

electronic and electrohydraulic solutions to

control hydraulic systems in both off-road

and on-highway vehicles.

The power of hydraulics combined with the

advanced control features offered by electronic

solutions increase the performance while

maintaining the highest reliability.

The electronic solutions combine other

components – such as pumps, motors, valves

and steering systems – meeting the highest

needs for integration.

Operator and operation

On the operator side we offer a product line

that consists of pedals, joysticks and displays

to command the machine precisely and

show complex machine information. With a

broad line of sensors such as speed, tempera-

ture and pressure sensors the machine and its

behavior can be monitored while data is

submitted to the controlling unit.

For controlling of the machine we offer a family

of standardized microcontrollers from the

compact SX up to the multi I/O unit S5X.

Moreover, the systems can be built with CAN

bus allowing an unlimited number of micro-

controllers and related I/Os.

Joystick

Different operating modules, proportional as

well as ON/OFF, can be built into the control

lever. In addition, the joystick can be equipped

with printed circuit boards offering different

electronic options. The joystick range is under

constant development to meet the demands

made on modern cab arrangements; demands

that include form, color and, not least, ergo-

nomic design.

Sauer-Danfoss has also developed the new

joystick Prof 1 incorporating CAN.

Microcontroller software

The software on the microcontrollers is not

only designed to control the propel function

directly, but also for electronic Anti Slip Control

(ASC) and various kinds of steering and

working functions. In addition, we offer con-

figured solutions with the SX control to run

specific personalities – such as PID, load-

control, leader-follower, etc.

Besides the standardized microcontroller we

provide tailored solutions for fan drive controls

and transit mixer drum drive control.

Interface

The controllers are interfaced through servo-

valves and proportional valves with the

hydraulic components of the machine.

The controller outputs are especially designed

to fit the technical requirements of the various

actuators. As mentioned above, we also provide

CAN communication to interface with other

systems such as the BPI and the EPS.

Forklift trucks and AC motors

The new generation of forklift trucks using

AC motors offers higher performance at lower

operating costs. With BPI and EPS, Sauer-

Danfoss now offers a complete solution for

AC motion control systems and allows you to

benefit from the advantages of modern

AC technology.

Battery Powered Inverter (BPI)

BPI converts the battery DC voltage into a

3-phase AC voltage used to supply and control

induction motors, primarily for the hydraulic

pump and propel drive.

17

JOYSTICKS

ELECTRONIC

PEDALS

S1X

S5X

SX

FAN

EPS

BPI

BPI is characterized by:

• Compact unit which offers more output

power for its physical size

• Optimal motor control, due to the Flux

Vector control

• Full four-quadrant drive system without use

of directional contactors

• Rugged and reliable design.

Electric Power Steering (EPS)

EPS is a fully electric steering system that

converts the motion of a steering actuator into

the position of the steered wheel(s).

EPS consists of a steering reference sensor and

a steering actuator, the latter including a com-

plete AC power control (inverter and control-

ler), an induction motor, a cycloidal

gear, plus unique built-in sensors.

The principal EPS characteristics are:

• Compact unit which removes the need for

a steering column

• Low noise level

• Low energy consumption.

18

To be partners

At Sauer-Danfoss, you not only benefit from best-in-class hardware,

leading edge technology and engineering, and years of mobile

hydraulics applications experience. You also benefit from a culture

that promotes the added values of Openness, Commitment,

Innovation, and Reliability.

Openness: At Sauer-Danfoss we listen and keep our minds open to

develop innovative solutions for the unique requirements of every

project.

Commitment: Technological expertise and high quality manufac-

turing takes you part of the way. It is our total commitment to the

partnership with our customers that ensures optimum results.

Innovation: At Sauer-Danfoss it is how we innovate that sets us

apart, we work closely with our customers so that we can launch

our ideas and make our visions viable.

Reliability: Being true partners means you are confident to trust

others with your business, your interests, and the projects you care

for.

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www.sauer-danfoss.com

Sauer-Danfoss can accept no responsibility for possible errors in catalogues, brochures andother printed or electronic material. Sauer-Danfoss reserves the right to alter its productswithout prior notice. This also applies to products already ordered provided that suchalterations can be made without subsequent changes being necessary in specificationsalready agreed. All trademarks in this material are properties of the respective companies.Sauer-Danfoss and the Sauer-Danfoss logotype are trademarks of the Sauer-Danfoss Group.All right reserved.

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