The air-pressure shaft, also known as the air-inflated shaft, utilizes the principle of air compression to alter the outer diameter of the shaft, ensuring a tight fit with the coiled material. This facilitates the winding and unwinding of rolls, enhancing the rationality, simplicity, accuracy, and automation of operations on the production line.

When air is injected into the internal expansion tube, the rubber hose within the shaft body expands, thereby increasing the outer diameter of the shaft body, which promotes the winding to be fixed onto the shaft body.

When the internal air is released, the expanded extruded part retracts, allowing the paper tube to be easily removed.

The axis body is manufactured from high-stress steel or aluminum alloy materials, with an internal expansion body composed of special imported synthetic rubber.

And it offers various structural forms: central drive key strip-type air-actuated shaft/strip-type air-actuated shaft; surface rotating key strip-type/strip-type; independent adjustment slip-type air-actuated shaft.