Both two types of machines comes out by our several- year research and development. They are featured with low power consumption, fast feeding and stable extruding. It solves big problems of traditional single screw machine like feeding unstable, low output, big power consumption. Both machines are mainly used for crushed PP, PE film granulating. Besides that, twin to single screw style machine also is good at recycling and pelletizing of strap shape and flake shape nonwoven fabrics, such as edges of nonwoven fabric, fiber material or heavy scrap etc. The big to small diameter style machine also is good at recycling and pelletizing of EPS, EVA foam material.