Pallmann Maschinenfabrik GmbH & Co. KG said its PolyGrinder can pulverize polypropylene copolymer for rotational molding by using cryogenic grinding. It is the first time the process can be done without the need to add liquid nitrogen as a cooling agent.
Pallmann said rotomolded PP parts can be used in vehicle-engine compartments and to make pressure vessels. But PP is difficult to pulverize.
The PolyGrinder pulverizes the material under ambient temperatures. The company is based in
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