3QLC, 3QLK, 3QLC-KS, 3QLK-KS2QLC-LS, 3QLC-LS, 3QLC-AG

Power Chucks

This catalogue describes the key components

of a power chucking system featuring the

following FORKARDT power chucks:

QLC, QLK,

QLC/QLK-KS (KING SIZE),

QLC-LS (LONG STROKE) and

QLC-AG (compensating clamping)

Should you require further information

beyond the data contained in this catalogue,

please refer to the following FORKARDT

publications; for example:

• Chuck Jaws

• Rotating Actuating Cylinders:

closed-centre hydraulic cylinders OKRJ

open-centre hydraulic cylinders OKHJ

• Controllers

• Gripping Force Meters SKM 1200 / 150

As we are constantly striving to improve our products, thedimensions and specifications in this catalogue cannot alwaysrepresent the latest state of the art;they are therefore given asan indication only and are not binding.

ContentsFORKARDT QLC/QLK Page

Power Chucks

Power Chucks 3

Technical Features

Advantages at a glance

Dimensions / Performance Data

QLC, QLK Power Chucks 4

3QLC/K-KS Power Chucks 6

(KING SIZE - large through bore)

2/3QLC-LS Power Chucks 8

(LONG STROKE)

3QLC-AG Power Chucks 10

(for compensating and self-centering

clamping, gripping with pull down effect)

Mounting Flanges, Adaptor Flanges,

Adaptor Plates

for the mounting of the chucks

on the machine spindle 12

Chuck Jaws

Quick change jaw system VC 13

HB Hard top jaw 14 - 15

KBN Roughing jaw 16 - 18

WBL/WBS Soft top jaw 19

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For more information visit:

www.forkardt.com

QLC, QLK, QLC/K-KS,QLC-LS and QLC-AG Power ChucksPower Chuck range with Wedge Hook, Lubr icat ion System and Centr i fugalForce Compensat ion

The new range of Power Chucks QLC, QLK,QLC/QLK-KS, QLC-LS and QLC-AG marks a consid-erable advance in chucking technology. (A feat sooften achieved by FORKARDT that it is becoming atradition!) The QLC family of chucks is an enviablecombination of proven mechanisms, innovativedesign, highest quality materials and advancedmanufacturing techniques. Needless to say, all deve-loped and produced in accordance with the require-ments of ISO 9001 - 2000.

QLC/QLK Power Chucks utilize the wedge hooksystem with a large through hole bore. Centrifugalforce compensation is also provided together with anintegrated lubricant reserve. QLC/QLK Power Chucks

are universal chucks which can beused in practically all turning

applications.

Technical features:• Best possible clamping forces obtained through

patented multiple jaw guides• Backlash free wedge hook mechanism for maxi-

mum clamping forces and highest repeatability

• Base jaw profile providing exceptionally longsupport for greater stability and precision duringinternal and external clamping

• Nitrided chuck body for longservice life

• Improved sealing of protectivesleeve

• Minimal loss of lubricating greasethrough undercuts

• Integrated lubricant reservoirwith improved circulation

• QLC variants have centrifugalforce compensation for highgripping forces at high speeds, accuracy, reliabilityand safety

• Carefully selected matching materials – all loaded,sliding surfaces are hardened and ground

• Simplified construction of the guiding pistonin the chuck, with no back protrusion of the pistonconnection when on clamping

• Axial Stroke limitation is integrated into the designof the chucks thus ensuring any over stroke of thecylinder is not problematic

• Optional quick change jaws

Advantages at a glance: • 30 – 40% lighter that comparable chucks• Reduced machine wear• Long maintenance intervals, high productivity• KING SIZE variants have 40% greater through hole

than comparable chucks• LONG STROKE chucks are capable of clamping

workpieces with great variances in diameter due to95% more clamping stroke

• Sensitive, free of gripping deformation of thinwalled parts

• Long, reliable and accurate service life• 5 years warranty - optionally available

(please complete the guarantee card andreturn to FORKARDT) Please contact us!

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PATE N T

E D

3 Q L C / KP o w e r C h u c k s

Technical Features:• Multiple base jaw profile with improved guiding

length for greater stability and precision duringinternal and external clamping

• Minimal loss of lubricating grease throughundercuts

• Best possible clamping forces are obtainedthrough multiple jaw guides

• Improved lubrication with additional, integratedlubricant reservoir and improved forced circulation

• Patented backlash free wedge hook mechanismfor maximum clamping forces and highestrepeatability

• Centrifugal force compensation for highest speeds(QLC version)

• Selected matching highest quality materials –allloaded, sliding surfaces are hardened and ground

• Simplified construction of the guiding pistonin the chuck

• MIR / ZMIR quick change jaw system optional

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W O R K H O L D I N G S O L U T I O N S W O R L D W I D E

K1 J1

K

ø B

T1

H1

Nm

ax .P

6

max

P2

P5

R

J2

H6

J

P4 T

C

ø B

2

G1

ø F

ø L

ø E

ø A

O

P1

P3

M

D

ø L1

G

Q1

Q

G2

3QLC/K

n = Speed [min-1]

Ma = Total - Centrifugal momentof the jaws [kgm]

= ∑ G x Ra

Dsp = Gripping Diameter[mm]

Yab = Centre ofgravity of the top jaw tothe Gripping Diameter[mm]

a = Jaw overhang [mm]

G = Weight ofone jaw[kg]

Ra = Distance from the centre of gravity of the top jaw to the chuck centre[mm]

Fsp

Yab

Dsp

Fax

S

Ra

a

C1Fsp = x Fax ± 0.0008 x (C3 + Ma) x n2 ±± CC44 xx nn22 [[ddaaNN]]C2 + a

Whereby the operating gripping force Fsp0 at idle (at speed n = 0) is: Terms used in the equation:

Fsp = operating gripping force [daN], the sum ofthe gripping forces of the jaws at operation.C 1, C 2, C 3, C4 = Chuck constantsFax = Actuating force [daN]

Dimensions / Performance data 3 QLC/K

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Type 3QLC, 3QLK / Chuck Size110-26* 140-35* 160-38 200-54 250-72 315-88 315-88 400-126 400-126 400-126 400-126

(QLK only) (QLK only) Z8 Z11 Z11-S12 Z15-S12 Z11-S23 Z15-S23

D i m e n s i o n sOuter diameter øA mm 110 140 162 210 257 320 320 400 400 400 400

Bore øB+0.1 mm 26 35 38 54 72 88 88 126 126 126 126

Chuck mounting øC mm Z4 120 Z5 Z6 Z8 Z8 Z11 Z11 Z15 Z11 Z15

Jaw mounting (DIN 6353) D S8 S9 S11 S11 S12 S12 S12 S12 S12 S23 S23

Register ø of draw tube B2H7 mm 32 39 42 65 77 93 93 134 134 134 134

Mounting recess EH6 mm 100 120 140 170 220 220 300 300 300 380 380

Actuator-ø F mm 45 48 52 76 90 110 110 150 150 150 150

Mounting bolts QLC G - - M10 x 95 M12 x 90 M16 x 100 M16 x 100 M20 x 80 M20 x 130 M24 x 110 M20 x 130 M24 x 110

Mounting bolts QLK G M10 x 80 M10 x 90 M10 x 95 M12 x 90 M16 x 100 M16 x 100 M20 x 80 M20 x 130 M24 x110 M20 x 130 M24 x 110

Thread mounting QLC G1 - - M45 x 2 M68 x 2 M82 x 2 M100 x 2 M100 x 2 M20 x 130 M24 x 110 M20 x 130 M24 x 110

Thread mounting QLK G1 M36 x1.5 M42 x1.5 M45 x 2 M68 x 2 M82 x 2 M100 x 2 M100 x 2 M20 x 130 M24 x 110 M20 x 130 M24 x 110

Puller thread protective sleeve G2 M4 M4 M4 M5 M6 M6 M6 M6 M6 M6 M6

Chuck width H mm 80 86 90 90 98 98 98 128 128 128 128

Chuck width H1 mm 82 88 92 92 100 100 100 130 130 130 130

Thread lengthJ mm 13 18 19 20 24 21 25 24 25 24 25

of mounting bolts

Thread length of actuator J1 mm 19 23 18 18 24 24 24 26 26 26 26

Base jaw protr. over chuck face J2 mm 6 6 5 5 6 6 6 8 8 8 8

Actuator stroke K mm 12 13 17 20 20 20 20 30 30 30 30

Actuator position K1 mm 12 13 17 20 20 20 20 30 30 30 30

Pitch circle - øL±0.2 mm 82.6 104.8 104.8 133.4 171.4 171.4 235 235 330 235 330

of mounting bolts

Pitchcircle ø of protective sleeve L1±0.2 mm 58.3 74 88 88 110 130 130 173 173 173 173

Jaw stroke M mm 3.2 3.5 4.5 5.4 5.4 5.4 5.4 8 8 8 8

Position of master jaw Nmax. mm 22.5 28 33 44.5 56.5 61 61 85 85 85 85

Jaw mounting bolts O M8 M10 M12 M12 M16 M16 M16 M16 M16 M20 M20

Distance of P1min. mm 4 5 6 6 8 8 8 12 12 15 15

jaw mounting bolts P1max. mm 13 15 17.5/14.5 27.5 34 58 58 70.5 70.5 60 60

Distance of P2min. mm 18 25 25/28 25 32 32 32 37 37 46 46

jaw mounting bolts P2max. mm 27 34 36.5/36.5 46.5 58 82 82 95.5 95.5 91 91

Minimum distance P3 mm 14 20 19/22 19 24 24 24 25 25 31 31

Minimum distance P4 mm 6.5 9.5 10 10 10 10 10 10 10 15 15

Distance T-nut and serration P5 mm 2 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3.5 3.5

Length of serrations P6 mm 32.5 42 48 60.5 72 99 99 115 115 115 115

Jaw width Q mm 25 30 35 35 45 45 45 60 60 60 60

Slot width imperial Q1H7 mm 10 12 17 17 21 21 21 21 21 25.5 25.5

Slot width metric Q1H7 mm 10 12 12 14 16 21 21 21 21 21 21

Width R mm 7.5 7.6 6.6 6 10 10 10 13 13 13 13

Pitch of serration/imperial QLC T - - 1/16 x 90° 1/16 x 90° 1/16 x 90° 1/16 x 90° 1/16 x 90° 1/16 x 90° 1/16 x 90° 3/32° x 90° 3/32° x 90°

Pitch of serration/imperial QLK T 1/16 x 90° 1/16 x 90° 1/16 x 90° 1/16 x 90° 1/16 x 90° 1/16 x 90° 1/16 x 90° 1/16 x 90° 1/16 x 90° 3/32° x 90° 3/32° x 90°

Jaw mounting metric D MS10 MS12 MS12 MS14 MS16 MS21 MS21 MS21 MS21

Pitch of serration/metric QLC T - - 1.5 x 60° 1.5 x 60° 1.5 x 60° 1.5 x 60° 1.5 x 60° 1.5 x 60° 1.5 x 60°

Pitch of serration/metric QLK T 1.5 x 60° 1.5 x 60° 1.5 x 60° 1.5 x 60° 1.5 x 60° 1.5 x 60° 1.5 x 60° 1.5 x 60° 1.5 x 60°

Distance from 1st serration T1 mm 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5

P e r f o r m a n c e d a t a

Max. actuating force Fmax. daN 2000 2500 2500 4000 6000 6000 6000 9000 9000 9000 9000

Max. gripping force Fspmax. daN 4000 5500 6000 10000 15000 16000 16000 23000 23000 23000 23000

Max. speed QLC nmax. 1/min. - - 8000 6300 4500 4000 4000 3200 3200 3200 3200

Max. speed QLK nmax. 1/min. 8000 7500 6300 5000 4000 3500 3500 2500 2500 2500 2500

Max. weight top jaw ** kg/Stck. 0.13 0.23 0.4 0.5 1.12 1.12 1.12 2.52 2.52 2.52 2.52

Max. jaw height top jaw ** mm 30 30 40 45 55 55 55 70 70 70 70

Weight G kg 5 8.5 11.5 18 26 38 38 90 90 90 90

Moment of inertia kgm2 - - 0.055 0.2 0.65 0.65 0.65 2.1 2.1 2.1 2.1

Moment of inertia kgm2 0.0075 0.02 0.04 0.095 0.2 0.65 0.65 2.1 2.1 2.1 2.1

Chuck constants C1 mm 350 458 507 808 916 1186 1186 1309 1309 1309 1309

C2 mm 170 212 227 322 398 497 497 553 553 553 553

C3 kgm 0.03 0.05 0.07 0.11 0.2 0.35 0.35 1 1 1 1

Values only for QLC (QLK=0) C4 daNmin2 - - 0.00008 0.00019 0.00032 0.0006 0.0006 0.0015 0.0015 0.0015 0.0015

I d e n t – N u m b e r

Imperial serration QLC D172000000 D172001000 D172002000 D172004000 D172005000 D172006000 D172007000 D172008000 D172009000 D172010000 D172011000

Metric serration QLC D172012000 D172013000 D172014000 D172016000 D172017000 D172018000 D172019000 D172020000 D172021000

Imperial serration QLK D172036000 D172037000 D172038000 D172040000 D172041000 D172042000 D172043000 D172044000 D172045000 D172046000 D172047000

Metric serration QLK D172048000 D172049000 D172050000 D172052000 D172053000 D172054000 D172055000 D172056000 D172057000

KDIN QLC D172024000 D172025000 D172026000 D172028000 D172029000 D172030000 D172031000 D172032000 D172033000

KDIN QLK D172060000 D172061000 D172062000 D172064000 D172065000 D172066000 D172067000 D172068000 D172069000**) Limit value for max. speed

3 QLC/K - KSPower Chucks

Technical Features:• Larger through hole bore for handling larger

diameter work pieces• Multiple base jaw profile with improved guiding length

for greater stability• Minimal loss of lubricating grease through undercuts• Best possible clamping forces are obtained through

patented multiple jaw guides• Improved lubrication with additional, integrated lubricant

and improved forced circulation• Patented backlash free wedge hook mechanism for

maximum clamping forces and highest repeatability

• Centrifugal force compensation for highest speeds• Selected matching highest quality materials – all loaded,

sliding surfaces are hardened and ground• Simplified construction of the guiding piston

in the chuck• Axial Stroke limitation is integrated into the design

of the chucks thus ensuring any over strokeof the cylinder is not problematic

• MIR / ZMIR quick change jaw system optional

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G2

Q

Q1

L1

øA ø

B

øB

1

øB

2

øE

øF

øL ø

L1

G

G1

H

H1

J

J1

K

O

P1

P4

R

C

D

T M

P5

P3

P2

P6

6

J2

Nm

ax

T1

K1

G

G1

H

H1

J

J1

K

O

P1

P4

R

C

D

T M

P5

P3

P2

P6

6

J2

Nm

ax

T1

K1G2

Q

Q1

L1

øA

øB

øB

1

øB

2

øE

øF

øL

øL1

3QLC-KS

3QLK-KS

n = Speed [min-1]

Ma = Total - Centrifugal momentof the jaws [kgm]

= ∑ G x Ra

Dsp = Gripping Diameter[mm]

Yab = Centre ofgravity of the top jaw tothe Gripping Diameter[mm]

a = Jaw overhang [mm]

G = Weight ofone jaw[kg]

Ra = Distance from the centre of gravity of the top jaw to the chuck centre[mm]

Fsp

Yab

Dsp

Fax

S

Ra

a

C1Fsp = x Fax ± 0.0008 x (C3 + Ma) x n2 ±± CC44 xx nn22 [[ddaaNN]]C2 + a

Whereby the operating gripping force Fsp0 at idle (at speed n = 0) is: Terms used in the equation:

Fsp = operating gripping force [daN], the sum ofthe gripping forces of the jaws at operation.C 1, C 2, C 3, C4 = Chuck constantsFax = Actuating force [daN]

Dimensions / Performance data 3 QLC/K - KS

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C h u c k S i z e

Type 3QLC-KS / QLK-KS 200-77 250-101 315-135 400-168

D i m e n s i o n s

Outer diameter øA mm 210 257 320 400

Bore øB +0.1 mm 77 101 135 168

Chuck mounting øC mm Z6 Z8 Z11 Z15

Jaw mounting (DIN 6353) D S11 S11 S12 S12

Register Ø of draw tube B2 H7 mm 85 112 140 173

Mounting recess E H6 mm 170 220 300 380

Actuator Ø F mm 97 123 153 190

Mounting bolts G M12 x 90 M16 x 95 M20 x 90 M24 x 80

Thread mounting G1 M90 x 2 M115 x 2 M145 x 2 M180 x 2

Puller thread protective sleeve G2 M5 M5 M6 M6

Chuck width H mm 90 90 98 98

Chuck width H1 mm 92 92 100 100

Thread length of mounting bolts J mm 20 22 22 30

Thread length of actuator J1 mm 24 24 24 24

Base jaw protrusion over chuck face J2 mm 5 5 6 6

Actuator stroke K mm 18.5 20 20 20

Actuator position K1 mm 18.5 20 20 20

Pitch circle Ø of mounting bolts L±0.2 mm 133.4 171.4 235 330.2

Pitch circle Ø of protective sleeve L1±0.2 mm 100 129 173 210

Jaw stroke M mm 5 5.3 5.3 5.3

Position of master jaw Nmax mm 52.5 67.5 85 100.5

Jaw mounting bolts O M12 M12 M16 M16

Distance of jaw mounting bolts P1min mm 6 6 8 8

P1max mm 20 29 34 58

Distance of jaw mounting bolts P2min mm 25 25 32 32

P2max mm 39 48 58 82

Minimum distance P3 mm 19 19 24 24

Minimum distance P4 mm 10 10 10 10

Distance T-nut and serration P5 mm 2.5 2.5 2.5 2.5

Length of serrations P6 mm 52.5 61 75 99.5

Jaw width Q mm 35 35 45 45

Slot width imperial Q1H7 mm 17 17 21 21

Slot width metric Q1H7 mm 12 14 16 21

Width R mm 6.6 6.6 9.6 9.6

Pitch of serration / imperial T 1/16” x 90° 1/16” x 90° 1/16” x 90° 1/16” x 90°

Jaw mounting metric D MS12 MS14 MS16 MS21

Spitzverzahnung metrisch T 1.5 x 60° 1.5 x 60° 1.5 x 60° 1.5 x 60°

Distance from 1st serration T1 mm 1.5 1.5 1.5 1.5

P e r f o r m a n c e d a t a

Max. actuating force Fmax daN 2,500 4,000 6,000 6,000

Max. gripping force Fspmax daN 6,000 10,000 15,000 16,000

Max. speed QLC-KS nmax 1/min 6,300 5,000 4,000 3,200

Max. speed QLK-KS nmax 1/min 5,000 4,200 3,000 2,800

Max. weight top jaw ** Kg./each 0.5 0.5 1.12 1.12

Max. jaw height top jaw ** mm 40 45 55 55

Weight G kg 16 26 37 63

Moment of inertia QLC-KS kgm2 0.076 0.18 0.4 1.04

Moment of inertia QLK-KS kgm2 0.076 0.175 0.4 1.04

Chuck constants C1 mm 589 808 916 1,186

C2 mm 248 322 398 497

C3 kgm 0.1 0.15 0.28 0.5

Values apply only for QLC-KS (QLK-KS = 0) C4 daNmin2 0.00017 0.00025 0.00044 0.00085

I d e n t – N u m b e r

Imperial serration QLC-KS D170130000 D168479000 D168480000 D168481000

Metric serration QLC-KS D168718000 D168719000 D168720000 D168721000

Imperial serration QLK-KS D170131000 D168576000 D168577000 D168578000

Metric serration QLK-KS D170132000 D168538000 D168539000 D168540000

**) Limit value for max. speed

2/3 QLC – LSPower Chucks

Technical Features:• 95 % more clamping stroke for work pieces

with variations in diameter• Easily grip stepped work pieces• Available as 2- and 3-jaw QLC versions

(QLK variants not available)• Multiple base jaw profile with improved guiding

length for greater stability

• Minimal loss of lubricating grease throughundercuts

• Nitrided chuck body for longer service life• Selected matching highest quality materials – all

loaded, sliding surfaces are hardened and ground• Long maintenance intervals• Centrifugal force compensation for highest speeds

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øA ø

B

øB

2

øE

øF

øL ø

L1

P6C

GG

1

H

J

J1

J2

K

Nm

ax

R

T

T1

M

6

D

H1

O P1

P2

P3

P4

P5

K1

L1

G2

Q

Q1

øA ø

B

øB

2

øE

øF

øL ø

L1

P6C

D

GG

1

H

H1

J

J1

J2

Nm

ax

O P1

P2

P3

P4

P5

R

T

T1

M

6

K

K1

L1

Q

Q1

G2

2QLC-LS

3QLC-LS

n = Speed [min-1]

Ma = Total - Centrifugal momentof the jaws [kgm]

= ∑ G x Ra

Dsp = Gripping Diameter[mm]

Yab = Centre ofgravity of the top jaw tothe Gripping Diameter[mm]

a = Jaw overhang [mm]

G = Weight ofone jaw[kg]

Ra = Distance from the centre of gravity of the top jaw to the chuck centre[mm]

Fsp

Yab

Dsp

Fax

S

Ra

a

C1Fsp = x Fax ± 0.0008 x (C3 + Ma) x n2 ±± CC44 xx nn22 [[ddaaNN]]C2 + a

Whereby the operating gripping force Fsp0 at idle (at speed n = 0) is: Terms used in the equation:

Fsp = operating gripping force [daN], the sum ofthe gripping forces of the jaws at operation.C 1, C 2, C 3, C4 = Chuck constantsFax = Actuating force [daN]

Dimensions / Performance data 2/3 QLC - LS

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Type 2QLC-LS / 3QLC-LS 160-30 200-41 250-52 315-71

D i m e n s i o n s

Outer diameter øA mm 162 210 257 320

Bore øB+0.1 mm 30 41 52 71

Chuck mounting øC mm Z5 Z6 Z8 Z11

Chuck mounting imperial (DIN 6353) D S11 S11 S12 S12

Register Ø of draw tube B2H7 mm 42 65 77 93

Mounting recess EH6 mm 140 170 220 300

Actuator Ø F mm 52 76 91 110

Mounting bolts G M10 x 95 M12 x 100 M16 x 110 M20 x 90

Thread mounting G1 M45 x 2 M68 x 2 M82 x 2 M100 x 2

Puller thread protective sleeve G2 M4 M5 M6 M6

Chuck width net H mm 93 96 110 120

Chuck width gross H1 mm 95 98 112 122

Thread length of mounting bolts J mm 15.7 19 20 25

Thread length of actuator J1 mm 23.4 24 24 24

Base jaw protrusion over chuck face J2 mm 5 5 6 6

Actuator stroke K mm 20 23 27 32

Actuator position K1 mm 20 23 27 32

Pitch circle Ø of mounting bolts L±0.2 mm 104.8 133.4 171.4 235

Pitch circle Ø of protective sleeve L1±0.2 mm 88 96 120 140

Jaw stroke M mm 8 9.3 10.9 12.9

Position of master jaw Nmax mm 36 43.7 52.9 70.5

Jaw mounting bolts O M12 M12 M16 M16

Distance of jaw mounting bolts P1min mm 6 6 8 8

P1max mm 14 35 40 58

Distance of jaw mounting bolts P2min mm 25 25 32 32

P2max mm 33 49 58 82

Minimum distance P3 mm 19 19 24 24

Minimum distance P4 mm 10 10 10 10

Distance T-nut and serration P5 mm 2.5 2.5 2.5 2.5

Length of serrations P6 mm 45 61 75.5 89

Jaw width Q mm 35 35 45 45

Slot width imperial Q1H7 mm 17 17 21 21

Slot width metric Q1H7 mm 12 14 16 21

Width R mm 6.6 6.6 9.6 9.6

Pitch of serration / imperial T 1/16" x 90° 1/16" x 90° 1/16" x 90° 1/16" x 90°

Jaw mounting metric D MS12 MS14 MS16 MS21

Pitch of serration metric T 1.5 x 60° 1.5 x 60° 1.5 x 60° 1.5 x 60°

Distance from 1st serration T1 mm 1.5 1.5 1.5 1.5

P e r f o r m a n c e d a t a

Max. actuating force 2QLC-LS Fmax daN 2,400 3,700 4,600 5,700

Max. gripping force 2QLC-LS Fspmax daN 3,700 6,000 7,500 10,000

Max. actuating force 3QLC-LS Fmax daN 3,500 5,500 7,000 8,500

Max. gripping force 3QLC-LS Fspmax daN 5,500 9,000 11,000 15,000

Max. speed nmax 1/min 6,000 5,500 4,000 3,200

Max. weight top jaw ** Kg,/each 0.4 0.5 1.12 1.12

Max. jaw height top jaw ** mm 40 45 55 55

Weight G kg 9 18 31 50

Moment of inertia kgm2 0.028 0.09 0.25 0.6

Chuck constants C1 mm 338 539 749 912

C2 mm 208 322 318 509

2QLC-LS C3 kgm 0.05 0.08 0.2 0.36

3QLC-LS C3 kgm 0.08 0.12 0.29 0.54

2QLC-LS C4 daNmin2 0.000026 0.000067 0.00014 0.0002

3QLC-LS C4 daNmin2 0.00004 0.0001 0.0002 0.0003

I d e n t – N u m b e r

Imperial serration 2QLC-LS D169619000 D169621000 D169622000 D169623000

Metric serration 2QLC-LS D169817000 D169818000 D169819000 D169820000

Imperial serration 3QLC-LS D169563000 D169565000 D169566000 D169567000

Metric serration 3QLC-LS D169813000 D169814000 D169815000 D169816000

**) Limit value for max. speed

3 QLC – AGPower Chucks

Technical Features:• Compensating chuck to clamp off-center parts

with high precision• Easy moving compensation even at high

clamping forces• Ingenious pull-back action for improved

part location on center• Easily interchangeable and finely adjustable

center housings• Simple change-over for self-centering mode

for general chucking work• Multiple base jaw profile with improved

guiding length for greater stability• Centrifugal force compensation for highest

speeds (QLK variants not available)

• Axial stroke limitation is integrated,ensuring any over stroke of the cylinderis not problematic

• Minimal loss of lubricating grease throughundercuts

• Nitrided chuck body for longer service life• Selected matching highest quality materials –

all loaded, sliding surfaces are hardenedand ground

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Q

Q1

K

M1

OP

3P

1P

2P

6M

Nm

axT1

T

6

G1

J1 K1

G

J

H3H

H1 P4

P5

H2

øA

øE

øF

øL

C

3QLC-AG

C1Fsp = x Fax ± 0.0008 x (C3 + Ma) x n2 ±± CC44 xx nn22 [[ddaaNN]]C2 + a

Whereby the operating gripping force Fsp0 at idle (at speed n = 0) is: Terms used in the equation:

Fsp = operating gripping force [daN], the sum ofthe gripping forces of the jaws at operation.C 1, C 2, C 3, C4 = Chuck constantsFax = Actuating force [daN]

Dimensions / Performance data 3 QLC - AG

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n = Speed [min -1]Ma = Total – Centrifugal moment

of the jaws [kgm]= ∑ G x Ra

Dsp = Gripping Diameter [mm]

Yab = Centre of gravity of the top jaw tothe Gripping Diameter [mm]

a = Jaw overhang [mm]G = Weight of one jaw [kg]Ra = Distance from the centre of gravity

of the top jaw to the chuck centre [mm]

Fsp

Yab

Dsp

Fax

S

Ra

a

C h u c k S i z e

Type 3QLC-AG 200 250 315

D i m e n s i o n s

Outer diameter øA mm 210 257 315

Bore øB mm 0 0 0

Chuck mounting øC mm Z6 Z8 Z8

Jaw mounting (DIN 6353) D S11 S12 S12

Mounting recess E mm 170 220 220

Actuator Ø F mm 44 50 50

Mounting bolts G 3 x M12 3 x M16 3 x M16

Thread mounting G1 M20 M24 M24

Chuck width H mm 106 113 113

Chuck back to serration H1 mm 108 115 115

Point height H2 mm 18 22 22

Pull-back stroke H3 mm 0.2 0.2 0.2

Thread length of mounting bolts J mm 18 24 24

Thread length of actuator J1 mm 40 45 45

Actuator stroke K mm 20 20 20

Actuator position K1 mm 45 55 55

Pitch circle Ø of mounting bolts L mm 133.4 171.4 171.4

Jaw stroke M mm 5.3 5.3 5.3

Compensating stroke M1 mm 2 2 2

Position of master jaw Nmax mm 42.9 53.5 55.5

Jaw mounting bolts O M12 M16 M16

Distance of jaw mounting bolts P1 min mm 6 8 8

P1 max mm 34 41 65

Distance of jaw mounting bolts P2 min mm 25 32 32

P2 max mm 53 65 89

Minimum distance P3 mm 19 24 24

Minimum distance P4 mm 10 10 10

Distance T-nut and serration P5 mm 2.5 2.5 2.5

Length of serrations P6 mm 61 75 99.5

Jaw width Q mm 35 45 45

Slot width / imperial Q1 mm 17 21 21

Pitch of serration / imperial T 1/16" x 90° 1/16" x 90° 1/16" x 90°

P e r f o r m a n c e d a t a

Max. actuating force Fmax daN 3,600 5,000 5,500

Max. gripping force Fspmax daN 7,000 12,000 13,000

Max. speed nmax 1/min 4,700 4,500 4,000

Max. weight top jaw ** kg / Stck. 0.5 1.12 1.12

Max. jaw height top jaw ** mm 45 55 55

Mass m kg 21 32 44

Moment of inertia J kgm2 0.11 0.3 0.8

Chuck constants C1 mm 808 916 1,186

C2 mm 322 398 497

C3 kgm 0.11 0.2 0.35

C4 daNmin2 0.00019 0.00032 0.0006

I d e n t – N u m b e r

Imperial serration D170783000 D170393000 D169907000

Metric serration D170788000 D170789000 D170790000

Note: QLC-AG chucks may optionally be equipped with spring loaded centres or inserts for concentric operation.**) Limit value for max. speed

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Mounting Flanges, Adaptors and Adaptor Plates:

Flanges with camlock attachment for mounting on spindle D nosesto DIN 55029, ISO 702 / II, ASA B 5.9 D1 D

Flanges with bayonet plate attachment for mounting on spindle J nosesto DIN 55022, DIN 55027, ISO 702 / III J

Adaptor plates for spindle noses to DIN 55021 A,DIN 55026 A, ISO 702/I A2, ASA B 5.9 K A2

Adaptor flanges including mounting bolts for spindle noses DIN 55021 A/B, DIN 55026 A/B, ISO 702/I A1/A2, ASA B5.9 A1/A2 K

Spindle nose Flange type Ident. No. Dimensions Studs and collar nutsSize B D L1 L2 FN Ident. No. Qty.

4 FF100-J4 D1074085000 45 18 82.6 85.0 322 D1070505000 35 FF120-J5 - 50 24 104.8 104.8 322 D1070505000 45 FF140-J5 D1074086000 50 24 104.8 104.8 322 D1070505000 446 FF170-J6 D1074090000 65 28 133.4 133.4 322 D1070506000 48 FF220-J8 D1074097000 80 32 171.4 171.4 322 D1070507000 4

11 FF300-J11 D1074104000 90 35 235.0 235.0 322 D1070508000 615 FF380-J15 D1074108000 120 42 330.2 330.2 324 D1070517000 6

Order code example: 1 mounting flange type FF 170-J6, Ident. No. D1074090000,1 set of studs with collar nuts size 6, Ident. No. D1070506000

Spindle nose Flange type Ident. No. Dimensions Camlock studsSize B D L1 L2 FN Ident. No. Qty.

4 FF100-D4 - 45 28 82.6 82.6 286 D1070511000 35 FF120-D5 - 50 30 104.8 104.8 287 D1070512000 65 FF140-D5 D1074119000 50 30 104.8 104.8 287 D1070512000 66 FF170-D6 D1074123000 65 35 133.4 133.4 288 D1070513000 68 FF220-D8 D1074130000 80 40 171.4 171.4 289 D1070514000 6

11 FF300-D11 D1074137000 90 45 235.0 235.0 289 D1070515000 615 FF380-D15 D1074141000 120 50 330.2 330.2 291 D1070516000 6

Order code example: 1 mounting flange type FF 170 - D6, Ident. No. D1074123000, 1 set of camlock studs size 6, Ident. No. D1070513000

Spindle nose Flange type Ident. No. Dimensions Mounting boltsSize B D L1 L2 DIN 912 10.9

3 ZWF100-K3 - 35 18 70.6 82.6 3 x M10 x 20 4 ZWF120-K4 - 50 20 82.6 104.8 3 x M10 x 204 ZWF140-K4 D1074053000 50 20 85.0 104.8 3 x M10 x 204 ZWF140-K4 D1074053000 50 18 104.8 85.0

3 x M10 x 204 ZWF140-K4 D1044757000 50 18 104.8 82.65 ZWF170-K5 D1074056000 60 24 133.4 104.8 4 x M10 x 256 ZWF220-K6 D1074060000 80 28 171.4 133.4 4 x M12 x 308 ZWF300-K8 D1074065000 90 32 235.0 171.4 4 x M16 x 35

11 ZWF380-K11 D1074068000 120 35 330.2 235.0 6 x M20 x 40

DIN 55021 Pitch circle diameter 85 mm DIN 55026 Pitch circle diameter 82.6 mm Order code example, 1 adapter flange ZWF 140 - K4, Ident. No. D1044757000

Spindle nose Flange type Ident. No. DimensionsSize D L2 L*

4 ZWS100-K4 - 12 82.6 105 ZWS120-K5 - 14 104.8 155 ZWS140-K5 D1074035000 14 104.8 156 ZWS170-K6 D1074036000 15 133.4 158 ZWS220-K8 D1074038000 17 171.4 15

11 ZWS300-K11 D1074040000 19 235.0 2015 ZWS380-K15 D1074042000 21 330.2 20

*The length of the chuck mounting bolts must be increased by the amount "L"when using these adapter plates! Order code example: 1 adaptor plate ZWS-K5. Ident. No. D1074035000.Note: The respective chuck type must be clearly specified when ordering flanges or adaptors separately.

L2

L1

D

B

L2

L1

D

B

Mounting Flanges J

B L2

L1

D

L2

L1

D

Adaptor FlangesZWF

Adaptor PlatesZWS

Mounting Flanges D

VCQuick change Jaw system VCThe quick change jaw system VC is as simple inhandling as effective in reduction of the set-up time.In spite of the same repeatability and less spacerequirement - compared to general mounting systems- very high clamping forces are permitted as well.Therefore, this quick change jaw system inconnection with a high-quality chuck represents aneconomic problem solution to improve productivity.

Advantages at a glance: • Jaw change within seconds• For I.D. and O.D. clamping• Jaw change system easily to be realised

automatically• Best repeatability

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PATE N T

PE ND I N

G

H BHB Hard top jaw• Hardened top jaw for universal

application• Jaws can be ground in the chuck

when mounted• Higher clamping force due to diamond

style serration• Ready ground when delivered with

a FORKARDT chuck

B

B1HB 23/140

S

D

C

AA1

L

L1T

ys

LS

C

A

A

D

A1

L

L1T

ys

L

HB 23/140

HB Hard top jaw

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Dimensions WeightTyp A B C D Ident. No. A1 B1 L L1 T Ys Kg./each

HB 08 5.5 26 31 S 08 D168904000 47 10 24.4 12.3 1 /16" x 90° 22.0 0.13

HB 09 6.5 32 39 S 09 D168905000 57.5 12 25.4 14.9 1 /16" x 90° 25.4 0.23

HB 11/65 10 35 44 S 11 D38762014 64.7 17 19 28 1 /16" x 90° 27.5 0.39

HB 11 12 40 49 S 11 D1071961000 72.6 17 19 18 1 /16" x 90° 32.5 0.47

HB 11/110 12 40 49 S 11 D1071416000 80.8 17 19 26.2 1 /16" x 90° 34.0 0.56

HB 12 14 50 58 S 12 D1071915000 103.5 21 25 33.5 1 /16" x 90° 42.5 1.12

HB 23/18 18 60 75 S 23 D45702000 139.7 25.5 31 53 3 /32" x 90° 56.5 2.52

HB 23/140 26 60 65 S 23 D1071922000 139.7 25.5 31 53 3 /32" x 90° 57.5 2.15

HBT 09 6.5 30 35 S 09 D154254000 63 12 17 16.5 1 /16" x 90° 34.2 0.19

HBT 10 8 32 42 S 10 D154255000 73 14 19.5 19.5 1 /16" x 90° 33.7 0.29

HBT 11 12 40 53 S 11 D154256000 89 17 23 27 1 /16" x 90° 38.1 0.56

M a i n d i m e n s i o n s

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C l a m p i n g r a n g e Q L C / K w i t h H BType Top jaw Ident. No. O. D. clamping I. D. clamping Swing

A1 A2 A3 A4 J1 J2 J3 J4 diameter3QLC 160 HB11/65 D38762014000 135-170 92-125 47-81 22-56 65-97 108-141 153-187 172-206 2073QLC 200 HB11 D1071961000 140-203 89-140 38-89 32-84 80-130 130-182 179-230 180-232 271

188-230 126-188 75-126 70-122 117-168 168-219 216-268 218-2703QLC 250 HB12 D1071965000 212-270 131-189 49-106 24-71 75-118 147-197 255-277 253-311 362

262-361 180-238 98-155 63-120 110-165 189-246 268-326 303-3133QLC 315 HB12 D1071965000 227-332 146-250 64-168 28-132 80-177 155-258 234-338 268-373 424

277-381 195-300 124-217 78-182 123-226 203-308 283-388 318-4233QLC 400 HB12 D1071965000 273-406 191-324 109-241 90-206 120-250 199-332 279-413 314-447 498

322-455 241-373 158-291 123-256 168-300 249-381 329-462 364-4973QLC 400 HB23/18 D4570200000 294-405 193-303 89-200 41-147 115-220 213-322 312-422 369-480 542

356-467 254-365 151-262 100-208 172-281 273-383 373-484 430-5413QLK 140 HB09 D168905000 104-119 65-79 22-35 28-42 66-88 105-127 146-169 142-162 181

115-138 75-98 32-54 38-61 84-106 123-146 165-188 158-1813QLK 160 HB11/65 D38762014000 135-170 92-125 47-81 22-56 65-97 108-141 153-187 172-206 2073QLK 200 HB11 D1071961000 140-203 89-140 38-89 32-84 80-130 130-182 179-230 180-232 271

188-230 126-188 75-126 70-122 117-168 168-219 216-268 218-2703QLK 250 HB12 D1071965000 212-270 131-189 49-106 24-71 75-118 147-197 255-277 253-311 362

262-361 180-238 98-155 63-120 110-165 189-246 268-326 303-3133QLK 315 HB12 D1071965000 227-332 146-250 64-168 28-132 80-177 155-258 234-338 268-373 424

277-381 195-300 124-217 78-182 123-226 203-308 283-388 318-4233QLK 400 HB12 D1071965000 273-406 191-324 109-241 90-206 120-250 199-332 279-413 314-447 498

322-455 241-373 158-291 123-256 168-300 249-381 329-462 364-4973QLK 400 HB23/18 D4570200000 294-405 193-303 89-200 41-147 115-220 213-322 312-422 369-480 542

356-467 254-365 151-262 100-208 172-281 273-383 373-484 430-541

C l a m p i n g r a n g e Q L C / K - K S w i t h H BType Top jaw Ident. No. O. D. clamping I. D. clamping Swing

A1 A2 A3 A4 J1 J2 J3 J4 diameter3QLC KS 200 HB11/65 D38762014000 179-218 135-173 89-128 65-114 106-145 151-189 196-235 216-255 2553QLC KS 250 HB11 D1071961000 183-241 131-189 80-137 75-133 121-178 172-230 221-279 223-281 320

220-278 168-226 117-175 113-171 158-216 210-268 259-317 261-3193QLC KS 315 HB12 D1071965000 275-333 193-251 111-169 76-134 122-178 201-259 281-340 316-374 425

324-283 243-301 160-218 125-183 170-227 251-309 331-389 366-4243QLC KS 400 HB12 D1071965000 306-414 224-332 142-250 107-215 141-259 232-340 312-421 347-456 507

355-464 274-382 191-300 156-254 200-308 282-390 362-471 397-5063QLK KS 200 HB11/65 D38762014000 179-218 135-173 89-128 65-114 106-145 151-189 196-235 216-255 2553QLK KS 250 HB11 D1071961000 183-241 131-189 80-137 75-133 121-178 172-230 221-279 223-281 320

220-278 168-226 117-175 113-171 158-216 210-268 259-317 261-3193QLK KS 315 HB12 D1071965000 275-333 193-251 111-169 76-134 122-178 201-259 281-340 316-374 425

324-283 243-301 160-218 125-183 170-227 251-309 331-389 366-4243QLK KS 400 HB12 D1071965000 306-414 224-332 142-250 107-215 141-259 232-340 312-421 347-456 507

355-464 274-382 191-300 156-254 200-308 282-390 362-471 397-506

C l a m p i n g r a n g e Q L C / K - L S w i t h H BType Top jaw Ident. No. O. D. clamping I. D. clamping Swing

A1 A2 A3 A4 J1 J2 J3 J4 diameter2QLC LS 160 HB11/65 D38762014000 138-170 94-125 49-80 24-55 67-97 110-141 155-186 174-206 2062QLC LS 200 HB11 D1071961000 128-193 77-142 26-91 20-67 70-132 118-183 166-232 167-233 272

165-231 114-179 63-128 76-124 104-169 155-221 204-270 205-2722QLC LS 250 HB12 D1071965000 200-272 119-191 37-109 6-74 68-122 140-200 218-279 241-314 364

250-322 168-240 86-158 51-123 99-168 177-248 257-329 291-3632QLC LS 315 HB12 D1071965000 231-332 150-251 68-168 32-133 83-178 159-259 238-339 272-347 424

281-382 199-300 117-218 82-183 127-227 207-308 287-389 322-4233QLC LS 160 HB11/65 D38762014000 138-170 94-125 49-80 24-55 67-97 110-141 155-186 174-206 2063QLC LS 200 HB11 D1071961000 129-193 99-142 26-91 20-67 70-132 118-183 166-232 168-233 272

165-231 114-179 63-128 76-124 104-169 155-221 204-270 205-2723QLC LS 250 HB12 D1071965000 200-272 119-191 37-109 20-74 74-122 140-200 218-279 241-314 364

250-322 168-240 86-158 51-123 99-168 177-248 257-329 291-3633QLC LS 315 HB12 D1071965000 231-332 150-251 68-168 32-133 83-178 159-259 238-339 272-347 424

281-382 199-300 117-218 82-183 127-227 207-308 287-389 322-423

KBN Roughing JawsFor heavy roughing cuts on overhanging work pieces,roughing jaws with interchangeable claw inserts areavailable.These claw inserts ensure particularly reliable andconsistent grip, even on small gripping surfaces, but

can also cause indentations on work pieces whichmay have to be removed in a second turning opera-tion.

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Type Top Chucking claw Ident. No. External Internal Swing Ø Swing Øjaw inserts Ø A1 Ø J1 O. D. I. D.

clamping clamping

3QLC/QLK 160 KBN11 SKA45-22 D151636000 - 213-231 170 2513QLC/QLK 160 KBN11 SKA45-22 D151637000 32-50 187-205 170 2253QLC/QLK 160 KBN11 SKA45-22 D151638000 46-64 173-191 170 2113QLC/QLK 160 KBN11 SKA45-22 / SKA90-20 D151640000 / D151641000 60-78 159-177 170 1973QLC/QLK 200 KBN11 SKA45-22 D151636000 30-72 237-276 223 2963QLC/QLK 200 KBN11 SKA45-22 D151637000 56-98 211-250 223 2703QLC/QLK 200 KBN11 SKA45-22 D151638000 70-112 197-236 223 2563QLC/QLK 200 KBN11 SKA45-22 / SKI160-22 D151640000 / D151641000 84-126 183-222 223 2423QLC/QLK 160 KBN11 SKA90-22 / SKI160-22 D151642000 74-93 145-163 183 1753QLC/QLK 160 KBN11 SKA90-22 / SKI160-22 D151643000 90-109 129-147 183 1753QLC/QLK 160 KBN11 SKA90-22 / SKI100-22 D151644000 / D151651000 106-125 113-131 199 1753QLC/QLK 160 KBN11 SKA90-22 / SKI100-22 D151645000 / D151650000 122-141 97-115 215 1753QLC/QLK 160 KBN11 SKA90-22 / SKI100-22 D151646000 / D151649000 138-157 83-99 231 1753QLC/QLK 160 KBN11 SKA90-22 / SKI100-22 D151647000 / D151648000 154-173 - 247 1753QLC/QLK 200 KBN11 SKA90-22 D151642000 98-141 169-212 231 2243QLC/QLK 200 KBN11 SKA90-22 D151643000 114-157 153-196 231 2243QLC/QLK 200 KBN11 SKA90-22 / SKI100-22 D151644000 / D151651000 130-173 137-180 247 2243QLC/QLK 200 KBN11 SKA90-22 / SKI100-22 D151645000 / D151650000 146-189 121-164 263 2243QLC/QLK 200 KBN11 SKA90-22 / SKI100-22 D151646000 / D151649000 162-205 105-148 279 2243QLC/QLK 200 KBN11 SKA90-22 / SKI100-22 D151647000 / D151648000 178-221 89-132 295 2243QLC/QLK 250 KBN12 SKA70-32 D151656000 63-112 268-317 272 3493QLC/QLK 250 KBN12 SKA140-32 D151657000 105-154 226-275 272 3073QLC/QLK 250 KBN12 SKA140-32 D151658000 143-192 188-237 286 2733QLC/QLK 250 KBN12 SKA140-32 D151659000 181-230 150-199 324 2733QLC/QLK 250 KBN12 SKA140-32 / SKI160-32 D151660000 / D151661000 219-268 112-161 362 2733QLC/QLK 250 KBN12 SKI160-32 D151662000 181-230 150-199 324 2733QLC/QLK 250 KBN12 SKI160-32 D151663000 143-192 188-237 286 2733QLC/QLK 250 KBN12 SKI300-32 D151664000 105-154 226-275 272 3073QLC/QLK 315 KBN12 SKA70-32 D151656000 78-175 284-380 335 4123QLC/QLK 315 KBN12 SKA140-32 D151657000 120-217 342-338 335 3703QLC/QLK 315 KBN12 SKA140-32 D151658000 158-255 204-300 349 3363QLC/QLK 315 KBN12 SKA140-32 D151659000 196-293 166-252 387 3363QLC/QLK 315 KBN12 SKA140-32 / SKI160-32 D151660000 / D151661000 234-331 128-224 425 3363QLC/QLK 315 KBN12 SKI160-32 D151662000 196-293 166-352 387 3363QLC/QLK 315 KBN12 SKI160-32 D151663000 158-255 204-300 349 3363QLC/QLK 315 KBN12 SKI300-32 D151664000 120-217 242-338 335 3703QLC/QLK 400 KBN12 SKA70-32 D151656000 128-255 333-460 415 4923QLC/QLK 400 KBN12 SKA140-32 D151657000 170-297 291-418 415 4503QLC/QLK 400 KBN12 SKA140-32 D151658000 208-334 253-380 429 4163QLC/QLK 400 KBN12 SKA140-32 D151659000 246-373 215-342 467 4163QLC/QLK 400 KBN12 SKA140-32 / SKI160-32 D151660000 / D151661000 384-411 177-304 505 4163QLC/QLK 400 KBN12 SKI160-32 D151662000 246-373 215-342 467 4163QLC/QLK 400 KBN12 SKI160-32 D151663000 208-334 253-380 429 4163QLC/QLK 400 KBN12 SKI300-32 D151664000 170-297 291-418 415 4503QLC/QLK 400 KBN23 SKA100-45 D151665000 76-177 414-516 417 5563QLC/QLK 400 KBN23 SKA200-45 / SKI360-45 D151667000 / D151673000 172-273 318-420 417 4603QLC/QLK 400 KBN23 SKA200-45 / SKI220-45 D151669000 / D151670000 308-409 182-284 553 420

C l a m p i n g r a n g e Q L C / K w i t h K B N

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Type Top Chucking claw Ident. No. External Internal Swing Ø Swing Øjaw inserts Ø A1 Ø J1 O. D. I. D.

clamping clamping

3QLC/QLK KS 200 KBN11 SKA45-22 D151636000 43-69 251-277 220 2973QLC/QLK KS 200 KBN11 SKA45-22 D151637000 69-95 225-251 220 2713QLC/QLK KS 200 KBN11 SKA45-22 D151638000 83-109 211-237 220 2573QLC/QLK KS 200 KBN11 SKA45-22 / SKI160-22 D151640000 / D151641000 97-123 197-223 220 2433QLC/QLK KS 200 KBN11 SKA90-22 D151642000 115-141 186-212 223 2323QLC/QLK KS 200 KBN11 SKA90-22 D151643000 131-157 170-196 231 2243QLC/QLK KS 200 KBN11 SKA90-22 / SKI100-22 D151644000 / D151651000 147-173 154-180 247 2243QLC/QLK KS 200 KBN11 SKA90-22 / SKI100-22 D151645000 / D151650000 163-189 138-164 263 2243QLC/QLK KS 200 KBN11 SKA90-22 /SKI100-22 D151646000 / D151649000 179-205 122-148 279 2243QLC/QLK KS 200 KBN11 SKA90-22 / SKI100-22 D151647000 / D151648000 195-221 106-132 295 2243QLC/QLK KS 250 KBN11 SKA45-22 D151636000 73-116 280-322 266 3433QLC/QLK KS 250 KBN11 SKA45-22 D151637000 99-142 254-296 266 3173QLC/QLK KS 250 KBN11 SKA45-22 D151638000 113-156 240-282 266 3033QLC/QLK KS 250 KBN11 SKA45-22 / SKI160-22 D151640000 / D151641000 127-170 226-268 266 2893QLC/QLK KS 250 KBN11 SKA90-22 D151642000 141-185 212-254 267 2753QLC/QLK KS 250 KBN11 SKA90-22 D151643000 157-201 196-239 275 2673QLC/QLK KS 250 KBN11 SKA90-22 / SKI100-22 D151644000 / D151651000 173-217 180-212 291 2673QLC/QLK KS 250 KBN11 SKA90-22 / SKI100-22 D151645000 / D151650000 189-233 164-206 307 2673QLC/QLK KS 250 KBN11 SKA90-22 / SKI100-22 D151646000 / D151649000 205-249 148-190 323 2673QLC/QLK KS 250 KBN11 SKA90-22 / SKI100-22 D151647000 / D151648000 201-265 132-174 339 2673QLC/QLK KS 315 KBN12 SKA70-32 D151656000 126-169 331-374 329 4063QLC/QLK KS 315 KBN12 SKA140-32 D151657000 168-211 289-332 329 3643QLC/QLK KS 315 KBN12 SKA140-32 D151658000 206-249 251-294 343 3303QLC/QLK KS 315 KBN12 SKA140-32 D151659000 244-287 213-256 381 3303QLC/QLK KS 315 KBN12 SKA140-32 / SKI160-32 D151660000 / D151661000 282-325 175-218 419 3303QLC/QLK KS 315 KBN12 SKI160-32 D151662000 244-287 213-256 381 3303QLC/QLK KS 315 KBN12 SKI160-32 D151663000 206-249 251-294 343 3303QLC/QLK KS 315 KBN12 SKI300-32 D151664000 168-211 289-332 329 3643QLC/QLK KS 400 KBN12 SKA70-32 D151656000 158-251 363-456 411 4883QLC/QLK KS 400 KBN12 SKA140-32 D151657000 200-293 321-414 411 4463QLC/QLK KS 400 KBN12 SKA140-32 D151658000 238-331 283-376 425 4123QLC/QLK KS 400 KBN12 SKA140-32 D151659000 276-369 245-338 463 4123QLC/QLK KS 400 KBN12 SKA140-32 / SKI160-32 D151660000 / D151661000 314-407 207-300 501 4123QLC/QLK KS 400 KBN12 SKI160-32 D151662000 276-369 245-338 463 4123QLC/QLK KS 400 KBN12 SKI160-32 D151663000 238-331 283-376 425 4123QLC/QLK KS 400 KBN12 SKI300-32 D151664000 200-293 321-414 411 446

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KBN Roughing Jaws

Type Top Chucking claw Ident. No. External Internal Swing Ø Swing Øjaw inserts Ø A1 Ø J1 O. D. I. D.

clamping clamping

2/3QLC LS 160 KBN11 SKA45-22 D151636000 - 212-228 - 2482/3QLC LS 160 KBN11 SKA45-22 D151637000 31-47 186-202 171 2222/3QLC LS 160 KBN11 SKA45-22 D151638000 45-61 172-188 171 2082/3QLC LS 160 KBN11 SKA45-22 / SKI160-22 D151640000 / D151641000 59-75 158-174 171 1942/3QLC LS 160 KBN11 SKA90-22 D151642000 73-89 144-160 171 1802/3QLC LS 160 KBN11 SKA90-22 D151643000 89-105 128-144 178 1732/3QLC LS 160 KBN11 SKA90-22 / SKI100-22 D151644000 / D151651000 105-121 112-128 195 1732/3QLC LS 160 KBN11 SKA90-22 / SKI100-22 D151645000 / D151650000 121-137 96-112 211 1732/3QLC LS 160 KBN11 SKA90-22 / SKI100-22 D151646000 / D151649000 137-153 80-96 (2QLC) 227 173 (2QLC)2/3QLC LS 160 KBN11 SKA90-22 / SKI100-22 D151647000 / D151648000 153-169 - 243 -2/3QLC LS 200 KBN11 SKA45-22 D151636000 24-36 (2QLC) 222-273 218 2932/3QLC LS 200 KBN11 SKA45-22 D151637000 44-94 196-247 218 2672/3QLC LS 200 KBN11 SKA45-22 D151638000 58-108 182-233 218 2532/3QLC LS 200 KBN11 SKA45-22 / SKI160-22 D151640000 / D151641000 72-122 168-219 218 2392/3QLC LS 200 KBN11 SKA90-22 D151642000 86-136 154-205 218 2252/3QLC LS 200 KBN11 SKA90-22 D151643000 102-152 138-189 226 2142/3QLC LS 200 KBN11 SKA90-22 / SKI100-22 D151644000 / D151651000 118-168 122-173 242 2142/3QLC LS 200 KBN11 SKA90-22 / SKI100-22 D151645000 / D151650000 134-184 106-157 258 2142/3QLC LS 200 KBN11 SKA90-22 / SKI100-22 D151646000 / D151649000 150-200 98-141 (3QLC) 274 2142/3QLC LS 200 KBN11 SKA90-22 / SKI100-22 D151647000 / D151648000 167-217 98-125 (3QLC) 290 214

78-125 (2QLC)2/3QLC LS 250 KBN12 SKA70-32 D151656000 51-108 256-313 268 3452/3QLC LS 250 KBN12 SKA140-32 D151657000 93-150 214-271 268 3032/3QLC LS 250 KBN12 SKA140-32 D151658000 131-188 176-233 282 2692/3QLC LS 250 KBN12 SKA140-32 D151659000 169-226 138-195 320 2692/3QLC LS 250 KBN12 SKA140-32 D151660000 207-264 124-135 (3QLC) 358 2692/3QLC LS 250 KBN12 SKI160-32 D151661000 207-264 124-135 (3QLC) 358 269

100-135 (2QLC)2/3QLC LS 250 KBN12 SKI160-32 D151662000 169-226 138-195 320 2692/3QLC LS 250 KBN12 SKI160-32 D151663000 131-188 176-233 282 2692/3QLC LS 250 KBN12 SKI300-32 D151664000 93-150 214-271 268 3032/3QLC LS 315 KBN12 SKA70-32 D151656000 82-169 287-374 329 4052/3QLC LS 315 KBN12 SKA140-32 D151657000 124-211 245-332 329 3632/3QLC LS 315 KBN12 SKA140-32 D151658000 162-249 207-294 343 3292/3QLC LS 315 KBN12 SKA140-32 D151659000 200-287 169-256 381 3292/3QLC LS 315 KBN12 SKA140-32 D151660000 / D151661000 238-325 131-218 419 3292/3QLC LS 315 KBN12 SKI160-32 D151662000 200-287 169-256 381 3292/3QLC LS 315 KBN12 SKI160-32 D151663000 162-249 207-294 343 3292/3QLC LS 315 KBN12 SKI300-32 D151664000 124-211 245-332 329 363

C l a m p i n g r a n g e Q L C - L S w i t h K B N

WBL/WBS Soft top jaw

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Backenanschluss D

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L1

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ys

B

B1H7

A

WBL +WBS

W B LW B S

WBL/WBS Soft top jaws Soft jaws (type WBL) are used for the accurate clampingof already machined work pieces, on which the clampingsurfaces must not be damaged.These jaws are turned, by the user, under clampingpressure, to the respective clamping diameter to ensureextremely high accuracy and repeatability.

DDiimmeennssiioonnss WeightType A B C D Ident. No. B1 L L1 T ys Kg./eachWBL 08 47 25 22.5 S 9 D168906000 10.0 14 6.5 1/16" x 90° 19.5 0.15WBL 09 60 30 25 S 9 D168907000 12.0 20 8.0 1/16" x 90° 26.0 0.25WBL 11 70 40 40 S 11 D49302000 17.0 22 15 1/16" x 90° 31.5 0.68WBS 11 70 40 60 S 11 D49829001 17.0 22 15 1/16" x 90° 31.5 1.02WBS 11 70 60 60 S 11 D49830001 17.0 22 15 1/16" x 90° 31.5 1.67WBL 11 80 40 40 S 11 D49303000 17.0 22 25 1/16" x 90° 35.0 0.89WBS 11 90 40 40 S 11 D49831001 17.0 22 25 1/16" x 90° 35.0 0.91WBS 11 90 40 60 S 11 D49831002 17.0 22 25 1/16" x 90° 35.0 1.38WBS 11 90 40 80 S 11 D49831003 17.0 22 25 1/16" x 90° 35.0 1.84WBS 11 90 60 60 S 11 D49832001 17.0 22 25 1/16" x 90° 35.0 2.22WBS 11 90 60 80 S 11 D49832004 17.0 22 25 1/16" x 90° 35.0 2.97WBL 12 110 50 50 S 12 D49304000 21.0 28 30 1/16" x 90° 51.0 1.70WBS 12 120 50 50 S 12 D49834001 21.0 28 30 1/16" x 90° 59.0 1.91WBS 12 120 50 80 S 12 D49834002 21.0 28 30 1/16" x 90° 59.0 3.07WBS 12 120 50 100 S 12 D49834009 21.0 28 30 1/16" x 90° 59.0 3.85WBS 12 120 60 60 S 12 D49835001 21.0 28 30 1/16" x 90° 59.0 2.86WBS 12 120 60 80 S 12 D49835007 21.0 28 30 1/16" x 90° 59.0 3.87WBS 12 120 60 90 S 12 D49835002 21.0 28 30 1/16" x 90° 59.0 4.50WBL 23 140 60 60 S 23 D49306000 25.5 35 30 3/32" x 90° 58.0 3.12WBS 23 155 60 60 S 23 D49839001 25.5 35 30 3/32" x 90° 58.0 3.55WBS 23 155 60 90 S 23 D49839002 25.5 35 30 3/32" x 90° 58.0 5.34WBS 23 155 60 120 S 23 D49839003 25.5 35 30 3/32" x 90° 58.0 7.12WBS 23 155 80 80 S 23 D49840001 25.5 35 30 3/32"x 90° 58.0 6.68

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