The Vorwald expansion chucks are suitable for unwinders without shafts, rewinding and unwinding machines. The simple construction ensures long service life. Several different types of expansion lugs are available for covering all requirements: Lengthwise grooved expansion lugs made of steel and expansion lugs with smooth surface made of polyurethane or screwed versions with various surface profiles that are quickly interchangeable. The number and positioning of the expansion lugs in the so called mantle are determined by the customer requirements.

• High torque transmission
• True running tolerance +/- 0.1 mm
• Quick clamping and unclamping
• Available expansion chuck diameters ranging from 50 to 500 mm
• Absolutely centred clamping of the cores

The Vorwald adapters of the Series 900 with individual expansion lugs or expansion leaf are required when it is necessary to effect frequent changeovers between various core sizes.

• Transmission of highest torques
• True running tolerance +/- 0.1 mm
• Quick clamping and unclamping with the existing expansion chuck
• Absolutely centred clamping of the core
• Available adapter diameters ranging from 98 to 500 mm