Mixing additives into feed premixes

Feed additives are nutritional components added to feed in order to control diseases or to promote growth. Intensive animal production has the goal to efficient and economically produce high quality and safe meat, eggs, not to mention many animal byproducts like blood, fats, bones, (under)skin, to even pharmaceutical materials for human applications. Improper processing may cause, besides underdose, a more risky overdose leading to poisoning of animals but also into too high residues in human food ingredients. This means accuracy is paramount here!

Process requirements

  • Accurate mixing of very small quantities of powder concentrates into a mix of bulk materials with other bulk density and particle properties. Contradiction to requirements in high accuracy is rather high capacity and batch sizes up to a range of 2 - 4 tons/batch.
  • High mixing accuracy ± 0,1% of average
  • Flexible mixing process
  • No segregation during discharge
  • Low mechanical product degradation
  • No heat generation by seals or bearings
  • Full discharge, better than 99,99 % discharge, and important is that the residue is a well mixed product

Mechanical design criteria

  • No dead mixing zone
  • Controlled and maximum discharge
  • Fast mixing with low nett energy input (Vitomix)
  • Fast dry and wet cleanable, and easy accessable

Mixer specifications

  • ATEX design
  • Sanitary design
  • Vessel and cover manufactured in one single piece without segments or sharp edges where product can hold up
  • Cantilevered mixer execution (no bottom bearing)
  • Central bottom outlet


For fast mixing of medium size batches of feed additives with extremely high accuracy and low energy input, the Vitomix conical mixer provides excellent results. Mixing times of 1 - 3 minutes can be achieved. For this application meanwhile, approximately 8 units have been supplied to several of the largest leading players worldwide in feed production. References are available on request.

Try before you buy

At Hosokawa Micron B.V. we have our own testing and process development centre in Doetinchem, the Netherlands. It 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.

From pilot plant to production scale

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.

How can we help you?

To learn more about our powder process equipment, contact us:

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