- Pipe extrusion: suitable for PP-R pipes, PE gas pipes, PEX cross-linked pipes, aluminium-plastic composite pipes, ABS pipes, PVC pipes, HDPE silicon core pipes and various co-extruded composite pipes.
- Sheet and sheet extrusion: suitable for the extrusion of PVC, PET, PS, PP, PC and other profiles and sheets. Extrusion of various other plastics such as silk, rods, etc.
- Profile extrusion: adjusting the speed of the extruder and changing the structure of the extruder screw can be used to produce various plastic profiles such as PVC and polyolefins.
- Food processing： pet food, treats, aquatic feed, flours and starches, cereals, snacks, confectionery, meat analogues, texturized protein.
- Modified granulation: It is suitable for blending, modifying and enhancing granulation of various plastics.
Whether plasticizing granulation machinery and processing machinery occupies an important position in both single screw extruder, industry in recent years, the single screw extruder has been a great development.
Single screw extruders are most popular for their low cost, simple designs, ruggedness, and reliability.
Single screw extrusion is generally defined as a process to mix, homogenize and shape material by forcing it through a specifically designed opening (die).
Material transport in a single-screw extruder is by drug-induced transport of the solid particles and the molten material. In particular, friction between the barrel walls and the solid pellets advances the polymer in the solids-conveying zone, while viscous drag advances the molten polymer.
In a typical extrusion operation, the two main sources of energy associated with enthalpy change of the extrudate are convection heat transfer between the hot cold barrel and the polymer or food material and viscous dissipation of the mechanical energy into heat inside the material. The rate of convected heat transfer is proportional to the amount of contact area between the barrel and the flowing material whereas the heat generated due to viscous dissipation is proportional to the volume of the material. In a single screw extruder machine, viscous dissipation of the mechanical energy predominates, especially at low moisture contents, thus making the extrusion process highly energy-efficient and cost-effective.
This relatively high efficiency, coupled with other benefits such as flexibility and versatility, is the reason for the rapid growth of extrusion technology in the food and polymer industries.