Dry Granulation System Roller Press Pelletizer for Compound Fertilizer Dry Roll Compactor Double Roller Extrusion Granulator for Powder Fertilizer Pellet Making Introduction The double roller extrusion granulator adopts a dry granulation process. It can complete normal-temperature granulation of dry powder materials and form pellets in one pass. It features high balling rate and strong pellet hardness. With low investment and quick return, this machine is widely used for