Discontinuous filament winding machine

A discontinuous filament winding machine (DFW machine or DW machine) is a machine for laying fiberglass filament windings over a cylindrical mould or mandrel bar using a carriage that is traveling along the axis of that mandrel. The mandrel is fixed on a mandrel stand and is rotated by an asynchronous motor. The carriage is the set-up that holds and winds the fiberglass on the rotating mandrel.^[1] The difference between the continuous and discontinuous filament winding machine is the area on which filament winding is laying out.

DW machines are normally used for manufacturing epoxy pipes.