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Key Differences between a Twin and Single Screw Extruder

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Neoplast
Key Differences between a Twin and Single Screw Extruder

A Single Screw Extruder is only one screw in the extruder barrel. It is made up of three basic parts, the transmission system, extrusion system and a cooling and heating system.

An extruder is a tool mainly used in the plastics industry, chemicals industry, Pharmaceutical, non-woven and minerals industry and the food and pet industry. However, it can be further segregated into two types—namely, a twin screw extruder and a single screw extruder based on their physical characteristics and applications. If you do not have much idea about extruders and do not know which one to choose, this blog will surely help. Here you will learn about what each is and the differences between them.  

In this kind, there is only one screw in the extruder barrel. It is made up of three basic parts, the transmission system, extrusion system and a cooling and heating system. While the extrusion system melts and plasticieses the polymer material, the transmission system drives the screw and provides the required torque. To run this function smoothly, the single screw extruder includes a heating and cooling system.

The design of a twin screw extruder is based on a single-screw extruder. This is immensely popular in extruded products mainly because of the many applications and uses it has. It has a great feeding performance, exhaust performance, plasticising and mixing performance, and more. However, there are two main types of twin-screw extruders, namely counter-rotating and co-rotating. 

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