The dry granulator is a device for shaping powder or granular materials through compression, crushing, and vibration. Moreover, it frequently occurs in the production of biological granules, powder metallurgy, ferrous metallurgy, chemical materials, and other applications.
Dry granulator usually applies the compaction granulation method, which can confine the powder materials to be granulated in a specific space and compress them into a dense state by applying an external force. According to the physical properties of the external force, this method contains two types: die pressing method and extrusion method.
Relatively, we have two types of dry granulators, which are flat die granulator and double roller extrusion granulator.