Pneumatic expanding shafts are used in the processing industry for winding and unwinding rolls of materials. The shaft increases its diameter by inflating, and thus perfectly clamps the sleeve. With the help of the shafts, you can subsequently transfer the torque to the roll, i.e. brake when unwinding or drive when winding. Expanding shafts are a very often used standard in the paper industry, in blowing plastic film, in the production of glass fiber mats, non-woven fabrics, flexible packaging, in the printing, packaging and other industries.