copperplate air expanding shaft

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1.It is especially designed to wind at shaft core and unwind at single shaft in order to either meet customers' requirements for more higher tension and torque or bear more weighted materials.
From expanding of single air bag and key strips, shaft core will be clamped.
The central body is made from steel or aluminum; key strips are made from steel. Key strips can be made from other materials under customers' special requirements.
To meet our customers' special requirements, according to the drawings, we can make shaft head with all kinds of materials and surface treatments.
Due to its unique clamp system, air bag can be replaced after withdrawing the shaft head without adopting special tools.
The aluminium alloy body has a standard size and speculation (as shown in blew chart), and other sizes available upon request.