Process technologies for tomorrow.


An inorganic pigment is a natural or synthetic metal oxide, sulfide or other salt used as a colouring agent for paints, plastics, and inks. Critical in the extrusion of coloured polymers is the extrusion pressure (must be low) and the moisture content of the pigment powder has to be as low as possible. The extrusion pressure is related to the fineness of the dry powder; the finer it is, the better!

The pigment pastes are very viscous and sticky. Present production lines for ultra-fine inorganic pigments usually consist of a centrifuge, fluidized paddle dryer and mill. Hosokawa Micron's solution combines a centrifuge and a DMR flash mill dryer, with a multi-blade rotor and high speed classifier.

The DMR flash dryer is a reliable machine for drying sticky inorganic pigment pastes. It is a very stable process resulting in a very fine and dry product in a one step process. The controlled high outlet temperature at 175°C ensures a high colour strength.


Test Centre in Doetinchem, the Netherlands Test Centre in Doetinchem, the Netherlands

Our test and process development centre in the Netherlands offers unique possibilities for testing your product to determine the most efficient process, system or plant prior to final design. We can provide laboratory-level as well as production-sized trials.

Whether you wish to test a single machine or a complete powder processing system, the same skilled and experienced staff are here to help ensure that your requirements are met, and that you are entirely satisfied with the results.

We offer process equipment and technologies from individual units to large scale bespoke system solutions. Our principle is to deliver high performance yet affordable solutions that meet our customers' demands and long term challenges.


To learn more about our powder processing equipment and systems for inorganic pigments, contact us:



Hosokawa Micron B.V. is certified according to ISO 14001. Our certification covers all environmental themes of ISO 14001: air, soil, energy, waste, water, noise and hazardous substances. In addition, Hosawa Micron was awarded an EcoVadis Silver Medal for its sustainability achievements. EcoVadis determined that the company was among the top 7% of companies rated by EcoVadis in the special machinery industry.

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