The cooling of pellets is an indispensable process in the granulation section. Our SKLN serious counterflow cooler is adopted to cool the pellets with high temperature and moisture. Hot air touches hot pellets and cool air touches cool pellets to avoid the pellet surface crack caused by sudden cooling produced by direct touching between cool air and hot pellets. The counterflow cooler can cool the pellets with a temperature of 70 â?? -90 â?? to a temperature slightly higher than the room temperature of 3 â?? -5 â??, and can be reduced to safe moisture (12.5%), which is convenient for pellet transportation and storage. The machine adopts a unique sliding valve mechanism to discharge materials, and the operation is smooth and the discharge is smooth.