Bloated

The air expansion drum mainly consists of components such as the front sleeve, rear sleeve, cylinder body, inner tube, airbag, and convex keyboard.

The expansion sleeve is made of high-quality aluminum with a surface oxidation treatment.

Equipped with a high-quality airbag and a quick inflation nozzle.

Excellent sealing effect, long service life, and easy maintenance.
Polyurethane provides an even better sealing effect and longer service life.

Technical Parameters:

Main outer diameter of the air expansion sleeve: Φ150mm, operating outer diameter: Φ155mm, suitable for paper tube: Φ152.4±0.2mm, main length: 250MM.