The machine is mainly used in extrudin soft and rigid thermoplastics, such as polyviyl chloride(PVC), pliythylene and others. It is used with relevant auxiliary machine (including size machine head) to produce several kinds of plastic products, for example: films, pipes, rod, plate,thread,cable insulating later, hollow product. It is also used for pelletizing . The machine has advantages. Such as advanced design . high output, good plasticization, low energy consumption, involute geat transmission, low noise, steady operation, large loading, long life and so on a.Extruder b.plastic machine c.single screw Extruder