The double screw extruder is a molding processing equipment that is suitable for polymer processing with high productivity, wide application range and strong change ability. Because of its superior cost performance, it is widely welcomed by plastic product processing and manufacturing enterprises, who are searching for and selling good double screw extruders in a wide range. Now let's briefly analyze the similarities and differences between the more commonly used double screw extruders and single screw extruders:
The structures of double screw extruder and single screw extruder are very different. The vast majority of double screw extruders are mainly composed of two intermeshing screws, and their structure is relatively more complicated; while the single screw extruder mainly relies on the the friction force generated by the interaction between the material and the barrel to achieve extrusion molding and its structure is relatively simple.
The double screw extruder and the single screw extruder are different because the structure of the former one is more complicated, so the objects suitable for operation are also obviously different. The single screw extruder is mainly suitable for plasticizing and extruding polymers, especially suitable for processing granular products; while the double screw extruder is more suitable for powder processing, which can mix and plasticize the pulverized mixed PVC materials.
The difference between double screw extruder and single screw extruder is also reflected in the process control effect. The single screw extruder is mainly for pellets after granulation, and the process control operation is simple; while the double screw extruder is mainly for the mixed PVC material, and its efficient mixing and plasticizing ability can promote the rapid production of materials in batches. In addition, it does not have a material preparation process but has an additional waste grinding process, so its process control is relatively more complicated.
According to a large number of sales statistics, it is shown that the double screw extruders has gradually replaced single screw extruders and has become the mainstream trend. Many subscribers also give priority to asking for the price of stable-quality double screw extruders. The difference between the twin screw machine and the single screw machine is not only manifested in different structures, different process controls, and different suitable objects, but also in different production efficiencies and different cost inputs.
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