Air precision chuck APC-S 

APC-S-Chucks with high accuracys are the ideal chucks for precise turn and cylindrical grinding operations, which have high requirements to concentricity, flatness and parrallelism.Variable clamping forces which are resulting out of a fine adjustment of the air pressure are enabling the clamping of thin walled and fragil workpieces without deforming. All models have an opening for coolant as standard.With sizes from 75 to 400 mm as standard and different jaw strokes, we can supply chucks for a wide range of applications.

Präzisions-Dreibackenfutter

Specification (3-jaw chuck):

Order-No. Accuracy
µm
Stroke ø
mm
Clamp.-force
max. daN
*
Max. rpm ** Weight
kg
3-50C-3 1,3 1,3 410 6.000  1,4
4-40-3 1,3 1,0 770 6.000  2,7
4-120-3 1,3 3,0 770 6.000  3,2
4-360-3 1,3 9,0 590 4.000  3,6
6-40-3 1,3 1,0 1.170 4.000  6,4
6-120-3 1,3 3,0 1.170 4.000  7,3
6-360-3 1,3 9,0 930 3.000  8,6
8-120-3 1,3 3,0 2.210 3.500  19,0
8-360-3 1,3 9,1 1.700 2.500  20,0
10-220-3 1,3 5,6 3.450 3.000  35,0
10-400-3 1,3 10,2 2.620 2.000  35,0
12-400-3 5,0 10,2 3.030 1.850  60,0
14-400-3 5,0 10,2 4.090 1.850  72,0
16-400-3 5,0 10,2 5.040 1.500  146,0
  • *Max clamping force at 7 bar air pressure
  • **Max. rpm is influenced by the weight of top jaws and the air pressure

Dimensions:

Order-No. A B C D F G H K L M N O
3-50C-3 80,6 50,80 19,1 - 1,5 8,9 39,0 - 69,85 3,20 M5 M5
4-40-3 100,3 82,52 19,1 19,10 1,5 6,3 52,3 20 88,90 3,20 M5 M5
4-120-3 100,3 82,52 19,1 19,10 1,5 6,3 62,5 30 88,90 3,20 M5 M5
4-360-3 100,3 82,52 19,1 - 1,5 18,0 76,4 - 88,90 3,20 M5 M5
6-40-3 151,1 124,97 19,1 25,40 3,1 6,4 52,3 20 135,89 3,20 M5 M6
6-120-3 151,1 124,97 19,1 25,40 3,1 6,4 62,5 20 135,89 3,20 M5 M6
6-360-3 151,1 124,97 19,1 25,40 3,1 7,8 76,5 20 135,89 3,20 M5 M6
8-120-3 201,9 167,64 30,1 25,65 3,2 15,8 87,0 43 182,88 6,40 M10 M10
8-360-3 201,9 167,64 30,1 25,65 3,2 15,3 98,4 43 182,88 6,40 M10 M10
10-220-3 254,0 215,90 32,0 33,00 4,7 9,5 107,1 40 233,68 6,40 M10 M10
10-400-3 254,0 215,90 32,0 33,00 4,7 23,7 127,3 40 233,68 6,40 M10 M10
12-400-3 303,5 247,65 32,0 45,00 4,7 23,7 127,3 32 266,70 6,40 M10 M12
14-400-3 355,0 279,40 32,0 56,00 6,4 6,4 151,5 38 317,50 9,55 M12 M16
16-400-3 405,0 304,80 32,0 56,00 6,5 6,5 151,5 38 355,60 9,55 M12 M16

Features:

  • Accuracy 1,3 µm to size 250, over that 5,0 µm
  • Sizes from 75 to 400 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
    performance
  • Steel back cover with ground mounting surface
  • Coolant through hole standard (except 3-50-3 and 3-50C-3)
  • Fixed manifold design (except 4-360-3 and 6-360-3)
  • APC-S chucks available in 2- and 3-jaw version                     
  • Chucks with jaw stroke to 25 mm on
    diameter and other specials on request
  • Exchangeable to diaphragm chuck MBS-L

Available chuck options:

  • QC: Quick change jaw system
  • SP: Super Präzision
  • MM: Axial moved air tube
  • AL: Automatic lubrication
  • SG: Special master jaws

Delivery contents:

  • APC-Futter
  • Instruction manual

Required for use:

  • Adapter plate
  • Air tube version 50 until size 150 mm (6-xxx) air tube version 82 at sizes of 200 mm (8-xxx) to 400 mm (16-xxx)
  • Rotary distributer RU-10 or RU-20, if the third channel of the air tube is for coolant, or autom. lucrication
  • Control unit BE-2 or 5/3-directional valve for actuation
  • Air filter regulator lubricator for air conditioning and pressure adjustment