The main advantages of the three screw extruder are complex flow field, long residence time and good mixing performance. It has been proved in the practice of many enterprises. It is possible to play a good role in nanocomposite system, high viscosity material mixing, high filling composite system and high demand for dispersed mixing in the future.

Three screw extruder disadvantage: adding a screw to bring large mechanical structure design problems, resulting in increased design and processing costs; three screw extruder installation operation and long-term stability are also tested.