Air Expandable Shaft

This is a very commonly used shaft.

• It mainly consists of slotted pipe, journals to suite users machine, lugs, rubber bladder and non-return valve.
• These types of shafts are suitable for both unwinding and winding stages.
• It can accommodate single core, multi cores of the width more than 150 mm.
• Type of pipe material, lug material are decided based on duty conditions like load, speed and core material.
• The limitations are, it cannot take care of gauge variation or individual core speed variation since slippage is not achieved and core width less than 1 50 mm.