Plastic granules of equipment host is crowded, it by extrusion machinery system and transmission system and heating, cooling systems. Plastic granules equipment 1. Extrusion system extrusion system including screw, barrel, hopper, head, and mould, plastic through extrusion system and plastic into uniform melt, and in the process, is established under the pressure of the continuous screw extrusion head. (1) screw: is the most main components of crowded machine, it directly related to squeeze the application range of the plastic machinery and productivity, high strength by corrosion resistant alloy steel. (2) barrel: is a metal cylinder, generally with the heat, high crushing strength, strong resistance to abrasion, corrosion resistant alloy steel or lined with low alloy steel composite pipe is made. Barrel and screw with, realize the plastic pieces, soften, melting and plasticizing, exhaust and compaction, and to shaping system continuously even sizing material conveying. Generally the length of the barrel for its diameter 15 to 30 times, in order to make plastic fully heating and fully plastic into the principle.