friction shafts

We have been developing clamping systems of high quality and precision for over 30 years. Already in the planning and development of expansion shafts, expansion mandrels, expansion chucks and friction shafts we rely on know-how and professional competence.

Many years of experience, technical know-how and adherence to delivery dates distinguish us as a high-performance partner in clamping technology.

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Friction shaft FSW

Friction shaft, pneumatically adjustable, centrically clamping

  • Rolls with different web tension
  • Rolls with different web widths
  • Rolls with different outside diameters (material of different thicknesses)
  • Steel carrier shaft
  • mounted on one side (as mandrel) or on both sides
  • Axial, radial or double-sided air supply
  • Bearing pins individually according to customer specifications
Product sheet as PDF

Expansion shaft FSW

The friction rings installed on the hard chrome plated and ground carrier shaft clamp the closely tolerated and hard cardboard sleeves by a short rotation in running direction.

A fixed air supply supplies the flat hoses with the required compressed air. The compressed air varies from 0-7 bar, depending on the roll diameter and the specified web tension. This presses the friction linings above against the inner rings of the friction bodies. The friction force generated in this way transmits the required torque to the individual rolls to be wound.

In order to achieve uniform winding or slipping of the rolls, the friction shaft speed must be up to 5% faster than the web speed.

After a short rotation in the running direction, the finished rewound rolls can be easily removed.

The FSW friction expansion shaft is available for winding cores with an inner diameter of 50-305 mm. On request, this expansion shaft is also available in other dimensions.

  • pneumatisch mechanische Spannwelle
  • Trägerwelle aus Stahl gehärtet, vorgeschliffen, hartverchromt, mit 3 außenliegenden Reibleisten
  • Luftzuführung radial
  • pneumatisch regelbar
  • einseitig gelagert durch Aufnahmeflansch 130×25 mm
  • Spannbereich 75,6-78,6 mm
  • pneumatic mechanical expansion shaft
  • Hardened steel carrier shaft, pre-ground, hard chrome-plated, with 3 external friction bars
  • allows rewinding of rolls with different web tension and widths
  • Clamping range 151.7-155.4 mm

friction rings


Mechanical-pneumatic friction shaft for winding and unwinding
of web-like materials for several rolls with different
Web tension and width.

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