Main Types Of Plastic Extruders

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Main Types Of Plastic Extruders

Classified by the number of screws

Single screw extruder: the most widely used, which drives material plasticization and extrusion through a rotating screw, suitable for thermoplastic processing. ‌

Twin screw extruder: enhances plasticizing effect through the synergistic effect of twin-screw, commonly used for processing high viscosity materials such as PVC profiles. ‌

Multi screw extruder: using multiple screw combinations for plasticization, suitable for processing complex materials. ‌

Unscrew extruder: It does not require a screw structure and achieves material plasticization through other means, which is relatively rare. ‌

By purpose

Extruder for molding: directly used for plastic product molding, such as core equipment in production lines for pipes, sheets, etc. ‌

Extruder for mixing and granulation: used for plastic recycling and raw material mixing and granulation. ‌

Feeding extruder: provides stable material supply for the production line. ‌

Classified by heating method

External heating extruder: heats the material through an external heat source. ‌

Insulated extruder: using insulation materials to reduce heat loss. ‌

Classified by working methods

Continuous extruder: achieves stable production through continuous feeding. ‌

Intermittent extruder: adopting intermittent working mode, suitable for specific scenarios.

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