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.
|Model||/||Total clamping force, kN, at nominal air pressure 6,3 bar||Diameter of the connecting belt D, mm||Depth of the connecting belt I, mm||Max. total clamping force, kN, at nominal air pressure 6,3 bar||Total jaw stroke, mm||Accelerated jaw stroke, mm||Clamping jaw stroke, mm||Gripping range, mm||Pressure drop time in a chuck working hollow to 2,5 bar, not less, min||Chuck weight, kg|