The plastic extruder is usually called the main machine, and the plastic extruder forming machine is called the auxiliary machine. After more than 100 years of development, plastic extruders have been derived from the original single screw into a variety of models such as twin screw, multiple screw, or even screw free.

        Plastic extruder (main machine) can be matched with pipe, film, holding material, monofilaments, flat wire, packing belt, extrusion net, plate (sheet) material, profile, granulation, cable covering and other plastic molding auxiliary machine, forming a variety of plastic extrusion molding production line, production of various plastic products. Therefore, the plastic extrusion molding machine is now or in the future, is one of the widely used machines in the plastic processing industry.

        What Is The Classification of Plastic Extruder?

        Plastic extruder can be divided into single screw extruder, twin screw extruder and multi screw extruder according to the number of screw.

At present, single screw extruder is the most widely used, suitable for general material extrusion processing. The twin screw extruder has the advantages of less heat generated by friction, more uniform shear of the material, larger conveying capacity of the screw, more stable extrusion, the material stays in the barrel for a long time, and uniform mixing.

        Single screw extruder plays an important role in plasticizing granulation machinery or forming processing machinery. In recent years, single screw extruder has made great progress.

        The twin screw extruder has good feeding characteristics and is suitable for powder processing, and has better mixing, exhaust, reaction and self-cleaning functions than the single screw extruder. It is characterized by processing plastics and blends with poor thermal stability, showing its superiority. On the basis of twin-screw extruder, in order to process blends with poor thermal stability more easily, the development of multi-screw extruder, such as Guanghua plastic extruder.