The plastic extruder needs to go through three stages in the extrusion molding of plastics, namely raw material plasticization, molding, and cooling. Plastic extruders are also divided into many different types, with screw extruders including single screw extruders, twin-screw extruders, multi screw extruders, etc; Extruders can be divided into continuous extrusion and discontinuous extrusion according to their functions. The output of the extruder is determined by the rotational speed of the screw. The screw speed can affect the output of plastic extruded by the extruder and also affect the plasticization effect.

The screw of Pengda Machinery extruder is cooled by an oil cooling system. The barrel is cooled by a special air cooling system. The system is controlled by a computer. According to different formula requirements of users, formulate screws with reasonable structure to achieve plasticization and logistics quality. All screws are processed using high-precision CNC screw milling machines, ensuring high consistency in extrusion performance for each similar extrusion equipment. Leading the way in introducing international advanced variable pitch and variable depth screw design technology, allowing logistics to shear and compress smoothly in the screw, closer to actual needs. The distribution box is specially designed with an extra large thrust bearing. The bearing is imported with original equipment, which has a high transmission life and can withstand greater extrusion pressure. The electrical system adopts imported components and has multiple fault alarm functions, with few faults and easy troubleshooting. The cooling system has a special design, with an extra large heat dissipation area, rapid cooling, and a temperature control accuracy of ± 1 ℃.