Rotary drum cooler is used to cool the fertilizer with certain temperature and particle size in the production of NPK fertilizer, which is used together with the dryer. The cooling machine can greatly increase the cooling speed, reduce the labor intensity, increase the output, further remove part of water and reduce the grain temperature of compound fertilizer.

Rotary drum dryer is mainly used for compound fertilizer production, drying fertilizers with certain temperature and particle size, and can also be used for drying other materials.

Complete equipment of fertilizer coating machine is composed of screw conveyor, mixing tank, oil pump, main machine, etc. It can effectively prevent the caking of fertilizer.