• CB-NR Collet Chucks - Stationary Design

The NRB series is a hydraulically actuated self-contained Pull Back design for non-rotating applications. The collet is coupled to the built-in piston and is drawn into the tapered seat when the chuck is actuated. Part stops can be mounted inside the chuck body.

CB-NRB Features
  • Self-contained design with built-in cylinder can be hydraulic or pneumatically operated
  • Pull Back design maximizes the efficiency of the clamping system by concentrating the chucking force in the direction of the machine table, in addition to drawing the workpiece against the part stop
  • Lubricated-for-life design requires minimal maintenance
  • All components hardened and precision ground for highest accuracy and long life.
Non-rotating dead length designs are quoted on request.
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Model

Collet Model

Max. Clamping Diameter

Min. Clamping Diameter

Accuracy

Clamping Range

Piston Stroke

Max. Hydraulic Force

Max. Clamp Force

Weight

N/A SK42BZI N/A 1.625 in42 mm N/A 0.156 in4 mm N/A .0004 in0.010 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 420 psi2.9 MPa N/A 17,985 lbs80 kN N/A 18.6 lb8.5 kg
N/A SK65BZI N/A 2.625 in66 mm N/A 0.187 in5 mm N/A .0004 in0.010 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 580 psi4.0 MPa N/A 23,605 lbs105 kN N/A 27.5 lb12.5 kg
N/A SK100BZI N/A 4.000 in100 mm N/A 1.000 in25 mm N/A .0006 in0.015 mm N/A +/- .040 in+/- 1 mm N/A 0.315 in8 mm N/A 530 psi3.7 MPa N/A 33,721 lbs150 kN N/A 54.6 lb24.8 kg
N/A SK80BZI N/A 3.250 in82.5 mm N/A 0.500 in12 mm N/A .0004 in0.010 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 760 psi5.2 MPa N/A 25,853 lbs115 kN N/A 40.69 lb18.46 kg
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