Pre-grinders WEIMA are able to process a wide range of thermoplastics incl. PE, PP, PVC, PS, PU and PET, and thermosets and elastomers. Pre-grinders series WLK with an innovative V-rotor with set up of cutting slot SuperCut with big and voluminous hollow parts, long pipes and profiles, massive plastics clods and other plastics waste, incl. PET bottles, fibers, laminated sheets, insulating material, floorings, plastic boxes.