Canada's Source for Plastic Sheet, Rod, Tube & Film.

Two screws, side by side, are placed within the extruder barrel, either co-rotating twin screw extruders are used primarily for processing PVC products such as pipe, siding, sheet, pellets, and film. The co-rotating units are used for compounding materials where thorough mixing and high output rates are important. The twin-screw unit resembles a positive displacement screw pump. It coveys the material at low speeds with controlled shear. The positive action assures that all portions of the material experience a uniform residence time.