Coperion K-Tron announces the expansion of the original ProRate™ PLUS feeder portfolio with more solutions for feeding powders. A ProRate PLUS-MT twin screw feeder will be added to the product line that will be available end of April 2023. Together with the recently introduced ProFlow™ bulk solids activator the new twin screw feeder is an efficient solution for feeding powder additives in plastics applications. Last year Coperion K-Tron developed a completely new feeder line built on 100 years of feeding experience to provide a robust and reliable feeder for simple feeding applications in the plastics industry. The ProRate PLUS continuous gravimetric feeder line is an economical solution and offers a quick return on investment due to its good price-performance ratio and fast delivery times. The original product line featured three single screw feeders that are ideal for the feeding of pellets, granules and other free-flowing bulk materials in secondary plastics applications.

New twin screw feeder ideal for powder additives

For more difficult to handle materials Coperion K-Tron is expanding the ProRate PLUS product line with a new twin screw feeder, the PLUS-MT. This gravimetric feeder with its horizontal agitator ensures that the two screws are always optimally filled with material. The twin screw technology also has the advantage of reducing pulsations and the screws have a self-cleaning effect. Twin screw feeders are ideal for difficult to handle powder additives such as talc, calcium carbonate or carbon black. The steep design of the hopper walls allows poorly flowing bulk solids to be fed reliably without an additional vertical agitator. Should material bridging or ratholes still occur, one or more ProFlow bulk solids activators can be mounted on the hopper to promote material flow.
The new ProRate PLUS-MT twin screw feeder can handle throughputs from 40 up to 1800 dm3/h [1.4 to 63.6 ft3/h], depending on bulk material characteristics. With individual bulk solids tests in our test centers, we can determine more precisely what the exact feeding range is for a specific bulk material.

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• Clever design features for ease of use
• Preconfigured refill packages for continuous material supply