Built-in versatility - The High Shear Mixer / Granulatoris a multi-purpose processor equally suitable for high speed dispersion of dry powders, aqueous or solvent granulations, effervescent products and wet and melt pelletization.
High Shear Pellet Processing
To form granules out of powders a granulation liquid and mechanical energy is needed. The formation of pellets can be considered as granulation taken one step further, to achieve spherical granules. For high shear pelletisation, a special mixing tool is available to optimise the process and maximise the output.
Wet Pelletizing
This process uses a Niro Rotary Atomiser spray to achieve excellent dispersion of binder liquid through the mix, and a special high-speed rotation blade for maximum movement of the product, for more efficient pelletization. A PTFE container-lining minimises the need for ‘top and tailing’, even with the most cohesive of products. Studies have shown that the PTFE liner - unique to Aeromatic-Fielder - can increase production efficiency by as much as 40%. Alternatively, an extruder may be used, similar to those used for the manufacture of pellets. In a typical set-up all ingredients are pre-blended in a container after dispensing. Depending on the extruder design the liquid can be added in the extruder or mixed separately to the correct consistency.
The material produced by the extruder is now not rounded in a spheronizer (as it would be for pellet manufacture) but transferred directly into a continuous fluid bed where it is dried to the desired moisture level.
Melt pelletization
This is an exceptionally fast method of producing pellets in a single step. The active material and binder are mixed in binder form then heated until the binder melts. A single batch is processed typically in just 15-20 minutes, and needs no further drying.