Screw extruder maintenance precautions, screw extruder is mainly used to extrude soft, hard polyvinyl chloride, polyethylene and other thermoplastics, can process a variety of plastic products, such as blowing film, extrusion, pressure plate, wire drawing, etc., can also be used for melting granulation. Plastic extruder advanced design, high quality, good plasticization, low energy consumption, the use of involute gear transmission, with low noise, smooth operation, large bearing capacity, long life and other characteristics. So what should we pay attention to in the maintenance process of the screw extruder?