Powder dosing

Dosing powders in injection molding or extrusion applications is a very specialized business. We successfully incorporated the experiences of powder manufacturers and plastic producers worldwide into the product development process of our powder dosing systems. With Movacolor powder dosing systems, plastic producers can save up to fifty percent on expensive powder additives.

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Highly accurate dosing systems for dosing and metering plastic powder


Dosing non free flowing powders

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MCPowder: trouble free dosing of non free flowing powders

MCPowder high output

Dosing of heavy duty powders

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MCPowder High Output: trouble free dosing of heavy duty powders

MCWeight P

Measuring actual feed capacity of an extruder consuming powder

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MCWeight P: measuring actual feed capacity of an extruder consuming powder

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The complete Movacolor product range

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The complete Movacolor product range

Powder dosing with a gravimetric or volumetric dosing feeder

Non-free flowing powders and heavy duty powders can be dosed trouble-free with a gravimetric feeder or volumetric feeder of Movacolor. The decision which feeder to choose is whether you decide to go for a small investment and choose a volumetric feeder or save money on the long term an choose a highly accurate gravimetric feeder.

The closed loop and the loss-in-weight technology of a gravimetric feeder offers maximum efficiency and saving when it comes to powder dosing. Movacolor’s gravimetric and volumetric feeders for powder dosing are both equipped with a single or double spiral and driven by a stepper motor. This together with the continuous excitation in the high grade polished hopper of the powder dosing system ensures a steady flow of powder into the main material stream.

Most of our volumetric feeders require manual calibration. This is in contrast to our gravimetric feeders, all of which are equipped with an automatic calibration function. The volumetric feeder MC30 Auto calibrate of Movacolor is an exception on the other volumetric feeders and can be pre-calibrated to dose at percentage rates.

Powder dosing systems for all kinds of powders

Movacolor developed unique powder dosing systems for non-free flowing powders as well as heavy duty powders: the MCPowder and the MCPowder High Output. These feeders both have their unique features to easily dose the specific powder and are both available as a volumetric and a gravimetric feeder.

Features non-free-flowing powder dosing systems

  • Double spiral design for reliable dosing of non-free-flowing powders
  • Agitator avoiding material clogging or rat holing
  • High grade polished hopper
  • Quick release coupling for easy cleaning
  • Capacity 0,1 - 40 kg/h
  • Special support frame for hopper loaders available

Features heavy duty powder dosing system

  • Single spiral design for reliable dosing of heavy duty powders
  • Agitator avoiding material clogging or rat holing
  • High grade polished hopper
  • Two heavy duty load cells
  • Capacity 10 – 450 kg/h
  • Modular hopper design

Powder dosing system with a modular design

All dosing products of Movacolor are based on the Movacolor modular dosing concept. This allows all kinds of combinations and modifications on your dosing system to meet the specific needs in your injection molding or extrusion application. This is interesting for plastic producers who use multiple powders or a mixture of powders, granulates and liquids at the same time. They can opt for a multi-component Movacolor dosing system. One multi-component dosing system can dose up to six different additives, allowing to optimize the recipe of the feed and eliminating pre-blending requirements.

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