The working principle of single screw extruders involves three main zones: the feed zone, the compression zone, and the metering zone. In the feed zone, raw material is fed into the barrel and begins to be conveyed forward by the rotating screw. The material then enters the compression zone, where it is subjected to higher pressure and temperature, leading to melting and mixing. Finally, in the metering zone, the material is homogenized and pushed through the die to form the final product.
