Process principles
Spray granulation is the drying of liquids (solutions,
suspensions, melts) while simultaneously building up granulates.
Germs can be provided for granulates (foreign germs) or can form
in the fluid bed due to abrasion and fracture (inherent germs).
The spray liquid coats the germs and is then dried.
Spray granulates are denser and harder in comparison with agglomerates.
(-> Fluid Bed Granulation/Spray Granulation)
For particles difficult to fluidize we have developed the Glatt Spouted Bed Technology.
Product characteristics
Spray granulate from build-
up granulation |
- Dust free
- Round pellets
- Good flow behaviour
- Easy to dose
- Good dispersibility
- Good solubility
- Compact structure
- Low hygroscopicity
- High bulk density
- Dense surface
- Narrow grain size distribution
- Low abrasion
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Manufacturing options
For this process, Glatt offers systems with different capacities:
Continuous Fluid
Bed Systems with throughputs from 500g to 10t/h.
Spouted Bed Systems with throughputs from 200g to 3t/h.
Batch Fluid
Bed Systems (Wurster) with batch sizes from 20g to 1.5t/batch.
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