Differential Shaft is a sophisticated winding shaft for slitter re-winder machine, used as duplex shaft winder (centre winding type). 1. It is capable of compensating speed variation due to gauge variation with multi cores. 2. Minimum 20 mm core width is possible. 3. Reel holding is possible at any position across the width. 4. No-time lost in re-positioning cores since no distance pieces are required. 5. Shaft can run at very high speed. Air ShaftThis shaft consists of slotted shaft, rubber bladders, hard and ground steel cage with ball type gripper.