Pneumatic expanding shafts with axial movement

Designed for the winding and unwinding of cantilever coils, they allow adjusting the position of the coil without being forced to deflate the shaft. Using a knob located at the end, it is possible to axially move the body about 20 mm on both sides, to maintain coil alignment during both winding and unwinding.

• The central body is made of natural aluminum or aluminum with anodized surface treatment.
• The steel end journals, with galvanizing treatment, are always manufactured according to the customer’s drawing.
• The expandable strips are made of aluminum or rubber-steel.
• The expansion of the strips is achieved by multiple air chambers made of high-strength synthetic rubber.
• For use in the food industry, a specific design is planned that includes: aluminum central body with hard oxidation treatment ; pin , screws , seeger and bearing in stainless steel, polyurethane strips.