Economical Pulverizing for Masterbatch Producers PolyGrinder® type PMM Pulverizing of Granules from Virgin Materials and Compounds With the PolyGrinder®, type PMM, high quality powders are gained for masterbatch production and compounding. The optimum particle size of the end powder guarantees a good mixture and adhesion of the additives. The user can process a wide spectrum of materials such as PE, PP, PA, PC etc. at ambient temperature. Pulverizing without using liquid nitrogen Excellent powder characteristics: Large specific surface area, good flow rate and mixing possibility Smooth interior of the mill housing without any dead corners Easy and quick cleaning when changing material or colors High throughput rate at favourable specific powder consumption Compact design with minimum space requirement

Method of Operation A feeding system feeds the granules into the PolyGrinder®, type PMM. Pulverizing is effected between the serrated grinding elements of a rotating and a stationary grinding disc. The downstream fan vacuums the powder from the Disc Mill and conveys it, over a very short distance, to the cyclone. The finished product is discharged through a rotary air lock into a bin. A filter (optional) cleans the discharged air. The entire system is fully automatic and controlled from a control cabinet. For operation and cleaning purposes, after material change, the system has been designed...