Key Type Air Expandable Shaft:

Working Principle:
The inflatable shaft is easy to use, only need to bring their own gas source, the air pressure control 6-8kg/cm2 range and need to lock the external components (such as the circular paper tube), air guns facing the inflatable shaft gas nozzlehand to press the the gas mouth of sliding gas core that deflated inflatable can be completed.

Feature:
1: The inflatable Time is short, the inflatable shaft with paper tube separation and placement can be completed in just 3 seconds inflated and deflated, nor do they need any parts of the shaft end side that is able to close the paper tube occlusion points relentless.
2: Place paper tube is simple: To the action of the inflated and deflated, the movable and fixed paper tube at any one position of the shaft surface.
3: Load weight: May be permitted, according to the actual needs of the customer, to determine the size of the shaft diameter and use the high hard force steel, increased weight-bearing.