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 our product development process. With Movacolor powder feeders, plastic producers can save up to fifty percent on expensive powder additives.
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 ensures a steady flow of dosing 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.
Movacolor developed a unique powder feeder 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.
All dosing systems of Movacolor have a modular design. This allows all kinds of combinations and modifications on your dosing system to meet your 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.
