Air Expanding Shaft

for fast change over of un-winder/winder roll air expanding shafts are required for core holding. Through its air valve air can fill and the air shaft will hold the core by expanding the rubber bladder.  core gets released after removing the air by thump press.  most commonly used cores are 3 inch id core but bigger cores are also used where heavy weight of the unwind/re-wind rolls. Air expanding shaft is core-holding device suitable for 3ã¢â‚¬â core inside diameter & 70mm core diameter. Lugs type air expanding shaft is most commonly used for  paper or pvc  core holding. Square end airshaft can be used with safety chucks for winding & winding. The shaft can take load of 30kgs to 500kgs. Cantilever type airshaft is available with one side shaft for mounting.