Although the screw of strong shearing cold feeding screw extruder has a more complex configuration and higher manufacturing costs, it has widely used in manufacture for its good exhausting affection. The operation principle of the screw of strong shearing cold feeding screw extruder is similar to that of cold feeding screw. But it has its own character.

The feeding parts of it use the large four-head screw configuration with angle shallow groove. This configuration has a lot of advantages: firstly, the strength and rigidity of the screw bottom have been improved;Secondly, the feeding ability of the large angle screw thread can be increased so that the imperfection that the shallow groove has a poor feeding ability can be made up and the transmission ability of rubber can be improved as well. In addition, multi-head screw thread can improve the feeding speed and is good for the stability and the feeding ability of various rubber materials in the extruding procession of rubber materials.