In the CB-ND series collet chuck, the collet is coupled to the chuck body and remains stationary as the tapered seat moves forward when the chuck is actuated. This design keeps the collet in a fixed Z axis position during clamping and does not create a pull back effect on the bar stock or workpiece.

CB-ND Features
  • Dead Length design produces no pull back on the workpiece
  • Low profile OD and short overall length provides increased tool clearance and maximum utilization of the machine's Z axis
  • Radial adjusting screws
  • Lubricated-for-life design requires minimal maintenance
  • All components hardened and precision ground for highest accuracy and long life
  • Stop plates and stop housings can be mounted inside the chuck body for chucking applications requiring end stops or part ejectors
  • Spindle speeds up to 6,000 rpm
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Model

Collet Model

Through Capacity

Clamping Range

Draw Tube Stroke

Max Draw Tube Force

Max. Clamp Force

Max Speed

Weight

Spindle Nose

Accuracy

N/A SK42BZI N/A 1.625 in42 mm N/A +/- .020 in+/- 0.5 mm N/A .160 in4 mm N/A 35kN 7,868 lbs N/A 17,985 lbs 80kN N/A 6,000 rpm N/A 24.7 lb11.2 kg N/A 140mm N/A .0004 in0.010 mm
N/A SK42BZI N/A 1.625 in42 mm N/A +/- .020 in+/- 0.5 mm N/A .160 in4 mm N/A 35kN 7,868 lbs N/A 17,985 lbs 80kN N/A 6,000 rpm N/A 25.8 lb11.7 kg N/A A2-5 N/A .0004 in.010 mm
N/A SK42BZI N/A 1.625 in42 mm N/A +/- .020 in+/- 0.5 mm N/A .160 in4 mm N/A 35kN 7,868 lbs N/A 17,985 lbs 80kN N/A 6,000 rpm N/A 25.8 lb11.7 kg N/A A2-6 N/A .0004 in.010 mm
N/A SK65BZI N/A 2.560 in65 mm N/A +/- .020 in+/- 0.5 mm N/A .160 in4 mm N/A N/A 10,116 lbs 45 kN N/A 105 kN 23,605 lbs 6,000 rpm N/A 33.7 lb15.3 kg N/A A2-5 N/A .0004 in.010 mm
N/A SK65BZI N/A 2.560 in65 mm N/A +/- .020 in+/- 0.5 mm N/A .160 in4 mm N/A 10,116 lbs 45 kN N/A 105 kN 23,605 lbs N/A 6,000 rpm N/A 35.5 lb16.1 kg N/A A2-6 N/A .0004 in.010 mm
N/A SK65BZI N/A 2.560 in65 mm N/A +/- .020 in+/- 0.5 mm N/A .160 in4 mm N/A 10,116 lbs 45 kN N/A 105 kN 23,605 lbs N/A 6,000 rpm N/A 42 lb19 kg N/A A2-8 N/A 0.0004 in0.010 mm
N/A SK100BZI N/A 3.937 in100 mm N/A +/- .040 in+/- 1 mm N/A .275 in7 mm N/A 14,612 lbs 65 kN N/A 150 kN 33,721 lbs N/A 5,000 rpm N/A 47.9 lb21.8 kg N/A A2-8 N/A .0008 in.020 mm
N/A SK100BZI N/A 3.937 in100 mm N/A +/- .040 in+/- 1 mm N/A .275 in7 mm N/A 14,612 lbs 65 kN N/A 150 kN 33,721 lbs N/A 5,000 rpm N/A 47.9 lb21.8 kg N/A A2-11 N/A 0.0008 in0.020 mm
N/A SK120BZI N/A 4.725 in120 mm N/A +/- .040 in+/- 1 mm N/A .275 in7 mm N/A 15,736 lbs 70 kN N/A 160 kN 35,969 lbs N/A 4,000 rpm N/A 72.6 lb33 kg N/A A2-11 N/A .001 in0.025 mm
N/A SK140BZI N/A 5.512 in140 mm N/A +/- .040 in+/- 1 mm N/A .275 in7 mm N/A 16,860 lbs 75 kN N/A 170 kN 38,218 lbs N/A 3,500 rpm N/A 89.1 lb40.5 kg N/A A2-11 N/A .001 in0.025 mm
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