Single Screw Extruder is the earliest widely used among various extruders. Due to simple structure and high efficiency, it has popular application in plastics processing industry. Similarly, in order to satisfy different requirement of processing, many explorations have been carried out on the structure of a variety of screw sand barrels by extruder producers. Single screw extruder has developed rapidly from the complete spiral structure to other kinds of structures, such as screw damper, venting and extruding structure, grooving barrel, pinning barrel,  and block structure, etc. All the factors above have enabled single screw extruder to enjoy wider formation and application.

Thanks to space-saving, single screw extruder has been distinctive in compound processing and blown film. It is playing a more and more important role in extrusion processing.