Spray granulation: Gentle drying, layer by layer

The granulates formed in spray granulation feature a round, compact structure. The result is a particularly pourable powder, with higher bulk density and tighter grain size distribution. Since these spray granulated blends are largely dust-free, they also bring advantages in further processing.

Individual settings
In spray granulation by fluidised bed you have many options. Residual moisture, grain size and bulk volume can all be individually adjusted within limits. We can also do spray granulation at very low temperatures, for very gentle granulation of heat-sensitive materials.

Protection from a nozzle

Powder particle - spray granulation
Layering - spray granulation
Onion structure - spray granulation

In spray granulation particles are successively coated by multiple layers. The fluid is sprayed onto the powder in the fluidised bed plant and gently dried onto the particles. This gradually builds wear-resistant grains with an onion-skin structure. Your advantages at a glance:

  • Very good pourability and dosing
  • No segregation of individual components
  • Very low dust content
  • High abrasion resistance
  • Narrow range of particle sizes
  • Higher bulk density
  • Round particle structure

Product examples

Capsule premixes


Dust-free: The perfect premixes for your tablet production

Pharmaceutical and medical products need to be clean. Spray granulation reduces the amount of fine dust to a minimum. The low-dust granulates support the efficient production of capsules, among other things. Lines run better and capsules fill better. Cleaning processes are also better.

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Vitamin-enriched teas


Compact granulates: Vitamins from a teabag

Fine powders always seem to find a way to escape. To keep this from happening, we process substances of interest like vitamins into granulates. As larger particles, they are well protected and can deploy their effects where they’re supposed to, for example in a teabag in a good cup of tea.

We also offer many ancillary services.

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