The flat die granulator uses extrusion rollers and molds to extrude. It is used to granulate various organic substances after fermentation. Before granulating, the raw materials do not need to be dried and crushed. The columnar particles with a diameter of 3-8mm to meet different needs. This machine is mainly used for the granules processing of (bio) organic fertilizer and aquaculture processing industry. The granular materials processed by this machine have smooth surface, moderate hardness, and can well maintain the internal nutrients during processing.