Generally speaking, a double roller granulator can be used to make dry compound granular fertilizer. Among all the fertilizer granulators of Huaqiang Heavy Industry, only the twin-roller granulator adopts dry granulation technology. In addition to compound fertilizers, other granules can also be produced using a twin-roller granulator, as long as the moisture content is between 5% and 10%. The granulation rate of the twin-roller granulator is above 93%. Huaqiang wet fertilizer granulator includes disc granulator machine, drum granulation and new organic fertilizer granulator. These granulators require the moisture content of the raw material to be between 25% and 30%.