What is the difference between an ordinary extruder and a high-speed extruder？ The main difference between regular extruders and high-speed extruders is how they work and their capabilities. Both are commonly used tools in plastic processing，but each has its own unique properties and uses.

A common extruder，also known as a single-screw extruder，is one of the most commonly used equipment in plastic processing. It uses a rotating screw to push the plastic raw material into the extruder chamber，and then through gradually increasing pressure and temperature，the plastic raw material is melted and transported to the machine head，and finally formed into the required shape and size. However，the limitation of this type of extruder is that its working efficiency is relatively low，and it may not be able to meet the processing needs of certain high-viscosity or high-molecular-weight plastics.

In contrast，high-speed extruders，also known as twin-screw extruders or metallocene extruders，have higher work efficiency and wider plastic processing adaptability. The high-speed extruder is equipped with two co-rotating screws，which allows the plastic raw material to be preheated and partially melted before entering the extruder chamber. This design increases the conveying speed and melting efficiency of plastic raw materials，thereby improving production efficiency. High-speed extruders are also designed to handle a wider variety of plastics，including those with high viscosities，high molecular weights and those with large amounts of fillers.

Another advantage of high-speed extruders is that they provide higher melt strength and better material dispersion. This results in plastic products with higher quality and more consistent performance. In addition，the design of high-speed extruders also helps reduce equipment wear and maintenance，thereby reducing long-term operating costs.

In summary，the difference between ordinary extruders and high-speed extruders mainly lies in their working efficiency and plastic processing capabilities. Ordinary extruders are suitable for processing most plastics，while high-speed extruders are more suitable for large-scale production that require high efficiency and high consistency.