National Initiative patent number: 201,120,166,690.X Using the principle of counter flow cooling pellet with high temperature, high humidity, avoid direct contact with cold wind and hot pellet, which can effectively prevent the particles from surface cracking;  Material temperature not higher than +3 degree at room temperature after cooling, moisture reduce not less than 3.95%, postponed the quality of pellet feed storage;  The equipment has access door in the front, which facilitate regular maintenance and inspection;  Cooler with all round, no dead corner, items dropped more uniform on the section, and even cooling;  The new rotary distributor ensure material surface height difference is less than 100mm, which make air output same in cooling section and material even cooling  Pneumatic discharge compared with conventional, it does not frequently starting motors that cause high energy consumption, saving 80%;  Increased air intake area (10 times), cooling fan resistance decreases, and saving energy consumption 20%;  Replace material no residues, avoid cross-contamination of materials;  Nesting material is no rub, squeeze, avoiding the fragmentation of granules;  Applies to pellet cooling that the length is less than 40mm.