Plastic extruder screw quantity can be divided into single-screw extruder, twin screw extruder and multi screw extruders. The single screw extruder is the most widely used, suitable for extrusion of materials in General. Twin screw extruder with heat generated by the friction is less, material's shear uniform, screw the large transmission capacity and output more stable, stay longer in the barrel of material mixed.
Single screw extruder plastic pelletizing machinery is molding machinery plays an important role in recent years, single-screw extruder with a great deal of development.
Double-screw extruder feeding characteristics, suitable for powder processing, and single-screw extruder with a better mixing, exhaust, reaction and self-cleaning function, characterized by a poor thermal stability of plastics and blending material at more shows its superiority. In a twin screw extruder based on, in order to more easily process poor thermal stability of the mixed material developed multi screw extruders, such as our plastic extrusion machines.
1, according to the number of screw, is divided into single-screw extruders, twin screw extrusion machines and screw extruder
2, according to the extruder screw into screw-type extruder and piston extruder;
3, according to the speed of the screw:
Common extrusion machine: speed below the 100r/min;
High-speed extruder: speed of 100~300R/min;
Ultra high speed extrusion machine: speed of 300~l500r/min.
4, according to the extruder Assembly structure of category: integrated extruders and extruder separately;
5, according to the spatial location of the extruder screw, can be divided into horizontal and vertical extruder extruder;
6, according to whether the extruder process exhaust gas, can be divided into the vented non-vented extruders and extruder.