Button Style Air Expanding Shafts is a solution for converting needs. It is used for unwind or rewind positions. It features Sautomatic rotary union air supply, fast roll mounting and anti-deflection. Its rugged construction and design are available for any diameter or length, in steel, aluminum or extra-light aluminum and lightweight carbon and with special designs for heavy duty and extra lightweight applications. The spacers and grippers have coaxial through which a flat steel ribbon extends.