Polyketone makes grade for new high-performance, wear-resistant gear series


For almost 45 years, Hans Zipperle Antriebstechnik, based in Renningen, Germany, has specialized in the manufacture of plastic drive components, producing these parts exclusively by means of injection molding. The process enables Zipperle to produce tight-tolerance, precisely engineered products, which, in some cases, are finished using conventional machining processes. Next to the products created according to customer specification, the company delivers a standard range of thermoplastic drive components, including cylindrical gears, bevel gears, gear racks, sprocket wheels, small bevel-gear systems, and planetary gears, typically made from polyamide (PA) and polyacetal (POM) materials.

Now, however, the company has added to its product range a series of highly wear-resistant gears for the machinery, equipment, and precision mechanics industries, comprised of standard and custom parts made with extremely high accuracy in various geometries. For these products, a material was required with enhanced wear-resistance properties. Ultimately, the choice fell on Akrotech PK, an aliphatic polyketone compound produced by German compounder Akro-Plastic GmbH, based in Niederzissen in the Rhineland-Palatinate region of Germany. Characterized by outstanding mechanical properties, aliphatic polyketone compounds exhibit excellent wear breakage, chemical resistance, toughness on impact loading, and extremely high abrasion resistance.

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