Air expanding shaft characters:

1. Air expanding shaft is also called pneumatic expansion shaft, it is through air compression so as to make shaft diameter changed. After expansion, this air shaft grip paper core tightly, making production reasonable, easy, convenient, accurate and automatic.
2. After injection air source, shaft body expanded out and bigger, so as to make paper core fixed on the shaft. When release air source, strips srhinked to original place, paper core can be taken out easily.
3. Shaft body can be made with steel or aluminum material, strips is also can be made with steel or rubber. 

Air expanding shaft advantages:

This air shaft adopts superior steel tube, surface hard chrome plating. Steel and rubber strip keys are available. According to different working situation, this strip type air shaft can be made in steel or aluminum material as needed. It is light, easy disassemble, durable. Handong made air expanding shaft is with high quality and good performance, it is superior to many domestic lug and strip type air shafts.

This lug, strip and bladder type air expanding shafts are widely used in coil winding and unwinding equipment. They are applied for grip and support paper core in rolling and unrolling. As usually, they are matched with flange or foot mounted safety chuck together.