The production of pellets by Extrusion and Spheronization involves three essential processes:
- Mixing of the dry powder components with a liquid to form a homogeneous and evenly wetted mass
- Extrusion of the wet mass into cylindrical “spaghetti like” strands and finally
- Spheronization which fragments the strands into short cylindrical lengths and roll-forms them into spheres.
Equipment for all three processes are available from several manufacturers and in the case of Mixers and Extruders, in a number of different forms. This guide will first describe and categorise the basic equipment types available and then give practical guidance on the use of Aeromatic-Fielder NICA™ System.
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