Rotors have a wide variety of functions in stock preparation. They are often installed in pumps for pumping liquids. In stock preparation, however, rotors are also used to dissolve and de-spelt waste paper and pulp. Pulper rotors and rotors for sorters in particular are often found in fabric preparation processes. Rotors only work with full effectiveness as long as their original shape has not been altered due to wear and tear. However, since pumps and sorters are run by many abrasive particles in substance preparation processes, they wear out correspondingly often. We specialize in refurbishing or remanufacturing your rotors with the best materials.