The polyurethane air expansion sleeve mainly consists of components such as the front sleeve, rear sleeve, cylinder, inner tube, airbag, and convex keyboard.
The air expansion sleeve is suitable for winding and unwinding in coating, printing, rewinding, papermaking, plastics, and related machinery. It particularly demonstrates its superiority in applications where three-inch and six-inch air expansion shafts are frequently used under lighter loads.

The clamping material of the air expansion sleeve is made of high-quality aluminum with a surface oxidation treatment. It is equipped with a high-quality polyurethane airbag and a quick inflation valve. It offers excellent sealing performance, a long service life, and convenient maintenance.