The slip shaft can solve the phenomenon of unwinding caused by uneven thickness and tension of each roll of material after slitting. This differential shaft is a centrally inflated type, which can be used with an electronically controlled frequency converter to adjust the air pressure to achieve automatic changes in tension, and the torque of each unit is very even, so that the tension of each roll of the slit is also consistent, which solves the problem. 

Difficulties in slitting caused by uneven material thickness. The slip shaft, also known as the differential shaft and the friction shaft, is used as the winding and special unwinding shaft of the slitting machine. The slip shaft is composed of a shaft core and multiple sets of slip rings. Each set of slip rings slips independently, and the torque is controlled by the central air pressure or the pressure transmitted from the side, so as to ensure that the coils are constant, uniform and neat from the inside to the outside. 

To rewind. Slip shafts are widely used in plastic films (including electronics, capacitors, battery diaphragms, cling film, packaging, composite films), metal foil (copper foil, aluminum foil, etc.), special paper rolls such as photo paper, and PVC film rolls, which continue to extend to Other fields, other industries, other special materials slitting and rewinding. The slip shaft is divided into three structural types: central air pressure slip shaft, mechanical side pressure slip shaft, and pneumatic side pressure slip shaft.