Sealed air precision chuck APC-SC

Precision chucks are often used in environments where abrasive materials can penetrate the chuck and cause components to wear prematurely, resulting in a loss of chucking accuracy.  Such applications include grinding,  EDM, and machining of ceramics.  Chucks used in these environments require frequent maintenance and/or replacement, and are often the cause of expensive machine downtime, and poor workpiece quality. 

A big improvement for these applications bring the MicroCentric APC-SC chuck. Sealed air chucks feature a stainless steel cover that seals the jaw slides. 

This design prevents contamination from grit and swarf and minimizes chuck maintenance for high volume production operations.

 

Specification (3-jaw chuck):

Order-No. Accuracy
µm
Stroke ø
mm
Clamp.-force
max. daN
*
Max. rpm ** Weight
kg
34-50-3-SC-QC 1,3 1,3 530 6.000  1,8
45-120-3-SC-QC 1,3 3,0 950 6.000  5,0
67-120-3-SC-QC 1,3 3,0 1.440 4.500  10,0
  • *Max. clamping force at 7 bar air pressure (3-jaw chuck)
  • **Max. rpm is influenced by the weight of top jaws and the air pressure

Dimensions:

Order-No. A B C D E F G H J K L
34-50-3-SC-QC 100,3 50,8 19,0 48,4 1,5 4,1 4,4 7,7 31,9 89,7 M5
45-120-3-SC-QC 125,7 101,6 19,0 65,7 1,5 6,3 5,2 9,0 31,9 114,3 M5
67-120-3-SC-QC 177,8 146,1 19,0 67,3 1,7 4,7 6,7 10,5 31,9 165,1 M8

Features:

  • Accuracy 1,3 µm
  • Sizes from 100 to 180 mm
  • Built in air cylinder
  • Double acting for both ID and OD clamping
  • Variable holding pressure to chuck fragile workpieces without distortion
  • Hardened master jaws and actuators assure long term high accuracy
  • Wear-restistant stainless steel cover
  • Steel back cover with ground mounting surface
  • Coolant through hole standard
  • Axial fixed air tube
  • APC-SC chucks available in 2- and 3-jaw version
  • Vices and special chuck available on request

Available chuck options:

  • SP: Super Precision
  • C: Coolant throughbore

Delivery contents:

  • Chuck
  • Instruction manual

Required for use:

  • Top jaws
  • Adapter plate
  • Air tube version 50
  • Control unit BE-2 or 5/3-directional valve for actuation
  • Air filter regulator lubricator for air conditioning and pressure adjustment