Expansion units These Pneumatic shafts, Couplings, Chucks and Adapters are used in applications of winding unwinding, materials e.g. paper, textile, plastic, aluminum, etc. Expansion shafts: Pneumatic expansion units can be used in almost all applications. These are avilable in various models of a diameter from 12.5 mm to 500 mm. Simple and well designed construction ensures a long service life. We also supply models with special shapes and individual clamping segments according to the customer requirements and designs. Features: Simple design on a modular principle Minimal accumulation of dirt They are removed by a high rate of rotation In addition to shaft diameters from 12.5 mm to 500 mm The individual clamping segments They can be wound high weight and high torques Security clap bearings are automatically closed at the start of rotation Mounting of the foot or flange, the output shaft or the output shaft without Choice bearings with interchangeable parts VT Optional of the special equipment, such as. brakes, clutches, etc. Ensure compatibility between the snap bearing and shaft expansion Mechanical expansion shafts Mechanical expansion shafts Vorwald can be supplied with individual clamping segments which can be used in all applications. Simple design allows for long service life. Mechanical expanding shafts with clamping sets, sheets and centering ledges are available for cores with internal diameters from 50 to 600 mm.High torques transmission.