The equipment is a one step granulator without drying process in normal temperature. It has the characteristics of campact structure, easy operation, non-three-wastes discharge, low power consumption, small floor space ect. Extrusion granulator is a new type granulator in fertilizer industry, specially used for powder materials such as potassium chloride, ammonium sulfide, Ammonium sulphate, Extrusion granulator Ca, Mg and K.Directly using dry-method extrusion, irregular granule within diameter 2mm~5mm can form, with high-intensity final granules and novel appearance.