GMT Expanding mandrels are suitable for thin-walled components.
Expanding mandrels are the ideal solution to various internal clamping problems. Expanding mandrels provide the benefits of versatility and accuracy when compared to other workholding methods. The power-operated, flange type expanding mandrels can be used on any machine with a drawbar facility. The natural pull back action of the sleeve ensures that the component rests against the locating face.

Expanding mandrels provide the following workholding features:

  • Quick and secure clamping
  • Concentricity
  • Positive location against backstops
  • Controlled datums
  • No pressure marks in the clamped bore. Easy loading