Features: 1.Pellets come from pelletizer need to be cooled down to keep a better strength. 2.The sieve will separate intact pellets from ash, which could be in recycling use. The ambient cooling-air flows vertically through the discharge-mechanism and the layer of pellets. 3.If retention time and cooling air-flow setting are optimal, outlet temperature of the pellets of 2-5℃ above the ambient temperature can be achieved. 4.The complete cooling system includes cooler, cyclone, air lock, and cooling fan.