Understand the Differences between Single and Twin Screw Extruder

Extruder is widely used in the chemical, plastics, and pharmaceutical industries. Here, we have discussed the single and twin extruder in-depth because both have their own characteristics and applications. According to your application, you must choose either a single-screw or a twin-screw extruder. 

About single screw extruder

As the name implies, there is a single screw in the extruder barrel. It is made of three parts such as heating & cooling system, a transmission system, and an extrusion system. It is widely used in modified compounding, profile extrusion, and pipe extrusion. 

About the twin screw extruder


It is developed based on a single extruder. It is widely used in extruded products because of its exhaust performance, excellent feeding performance, and extrusion stability. The effect of high torque and speed results in high productivity. Thus, it becomes suitable for various applications. 

Single vs. twin screw extruder

A single screw is extremely cheaper and simpler. It is enough for certain applications. It is also developing in the direction of high efficiency, high speed, and specialization. Conversely, the twin screw is energy-saving and efficient, so it works well in reactive and blending extrusion. It has excellent feeding characteristics and suits for powder processing. It also has better venting, mixing, self-cleaning and reaction functions than the single screw. 

Tips for choosing the right extruder

Although huge differences are available between single and twin screw extruders, they can use for similar applications or in combinations based on the project. Here are the tips to follow in choosing the right extruder.

  • Check your application requirements 
  • Figure out your budget range

Both these elements may look simple, but it affects the extruder solution greatly. Most importantly, you should find the best extruder manufacturer and supplier to get the best quality products at an affordable rate. 

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