Fluid bed bottom spray coating for wurster coating

    Fluid bed bottom spray coating for wurster coating
    20th March 2016

  • Fluid bed bottom Spray Coating called Wurster fluid-bed process is a technology for precision application of high quality reproducible films onto particulate materials such as powders, crystals, or granules.
  • The technology can be used to encapsulate solid materials with diameters ranging from near 20mm. to more than a centimeter with high quality reproducible films and highly organized particle flow. For film coating the bottom-spray process produces a smoother and more uniform coating and higher coating efficiency compared with top-spraying or tangential-spraying.
  • In bottom spray coating for wurster coating spraying is done from below upwards. The spray nozzles are integrated in the flow bed and thus completely swathe by the product. By combining flow bed and partition, a targeted and controlled movement of the particles can be achieved. This is the requirement for the optimal application of the coating materials to the particles.

For any enquiries regarding our powder processing equipment and technologies for the chemicals industry, please get in touch today.

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