Air Chucks : BigMouth II™ BT Models

Extended jaw stroke models for tubular product applications

  • Tandem mount front & rear of headstock to support long pipe
  • New models properly sized for tubular work and to fit today’s lathe models
    • Reduced chuck diameters, reduced mass and inertia
    • Minimizes load on lathe spindle drive and brake.
    • Reduces acceleration and deceleration lost time
  • Easy-Mount design”, all models
    • Fully assemble on bench and bolt directly to adapter plate
    • No cumbersome chuck assembly on lathe spindle
  • Faster production cycle times
  • Reduces electrical consumption
  • New – routine maintenance free non-return valve
    • Safer – allows pressure testing entire chuck including valves
  • New – Longer life Quad-ring seals on all dynamic surfaces
  • Full custom packages installed on your lathe by ATS engineers
  • Two year warranty with ATS installation
  • Womb-to-tomb support by local ATS Service Engineer
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Chuck Model   BT 4.1 ES BT 7.3 es bt 10.8 es bt 12.8 es bt 14.8 es
Through-Hole
In.
4.13
7.28
10.82
12.80
14.76
Chuck Length
In.
7.9
11.1
11.1
12.1
12.1
Jaw Stroke/Jaw
In.
0.6
1.0
1.0
1.0
1.0
Jaw Serration
1/16 X 90º
3/32 X 90º
3/32 X 90º
3/32 X 90º
3/32 X 90º
Swing Clearance
In.
14.9
21.7
26.7
29.4
31.4
Maximum Speed
RPM
2000
1300
1100
900
750
Grip Force @ 90 PSI
Lbs. Total
16000
31000
36000
42000
47000
Grip Force @ 50 PSI
Lbs. Total
7400
14400
16800
19600
21900
Weight
Lbs.
220
500
700
1200
1300