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A round pellet for moist granulates and extruded products.
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Spheronizing.
Round pellets are formed from irregular wet granulates
and extruded products.
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Product advantages.
Good flow behaviour.
Narrow particle size
distribution.
Optimum starting shape for coatings.
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Comparison.
Pellets have a higher density than spray granulates and
agglomerates.
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Particle diameter.
Between ca. 0.5mm and
2.5mm.
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Principle of the granulate spheronizing process
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Principle of the extruded product spheronizing process
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Irregular particles can be spheronized with the help of a
pelletizer/spheronizer. The moist granulates or extruded products are fed onto
the rotating pelletizing plate. The surface is smoothed due to the intensive
rolling movement and spherical pellets are produced. (-> Spheronizing in the pelletizer)
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Product characteristics of the granulates and pelletsr
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Dust free
Round, uniform shape
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
Visual attractiveness
Optimum starting shape for subsequent coating
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Top: spheronized extruded product
Bottom: spheronized wet
granulate
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With suitable additives, pellets can be made into tablets or used to fill
capsules. The round shape is ideal for uniform coating. Pellets are good for
automatic dosing.
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Manufacturing options
For this process, Glatt offers Pelletizers/Spheronizers with throughputs
from a few 100g to 1.5t/batch.
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