Heated Mandrel

Client: Rheinmetall Denel Munition

Date: 2010

During filament winding of precision tubes there is a need for the rotating mandrel to be heated internally during the winding process to improve speed and uniformity of resin cure. We have devised an electrical heating system inside the mandrel to perform the task. The power input to the elements can be varied in zones along the length of the mandrel to ensure a uniform outer surface temperature.

Power and control signals to the unit are supplied via a slip ring assembly. A PLC control system monitors and records the mandrel temperature.