Air operated self-centering chuck with through-hole PPT-450

Air operated self-centering chuck with through-hole model PPT-450.140 (analogue of Bison chuck 2500-400-140) serves for kitting of special lathes with clamped spindle stop, meant for pipe machining in oil and gas producing industry. Pneumatic actuator allows to install two chucks on a machine (on a spindle nose and back spindle terminus of a lathe) for better centering of pipe workpiece.

The chuck is equipped with a collector, which is mounted on the front headstock of the machine.

Increased movement of clamping jaw allows to clamp a pipe without couplings removing. For emergency shutting-down of spindle rotation when loss of pressure in a chuck hollow, there is a pressure fall control mechanism installed.

Parameter Value
 Total clamping force, kN, at nominal air pressure 6,3 bar 10
 Maximum speed of rotation with exchange jaws, min-1 1400
 Jaw stroke, mm:  
Total  19
Accelerated  12
Clamping  7
 Gripping range, мм 35-138
 Pressure drop time in a chuck working hollow to 2,5 bar, not less, min 20
 Chuck weight, kg 200
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