... from bottom to top 1.SKLN counter flow pellet cooler mainly cool some pellets, after cooling, the ... as time goes on, pellets will pulse at the cooler bottom, cold air will meet with cooled pelltes ... shaping rate is smaller than 2%. the pellet cooler generally works with cyclone and air fan. 3. ... clearance hole is used, thus makes the pellet cooler operation stable and makes the materials discharge be ...