Since last year, when Buhler AG in Uzwil, Switzerland, acquired the corotating twin-screw compounding machinery line of Thyssen in Germany, Buhler has applied some technologies from its food-processing twin-screws to its plastics business.
Since last year, when Buhler AG in Uzwil, Switzerland, acquired the corotating twin-screw compounding machinery line of Thyssen in Germany, Buhler has applied some technologies from its food-processing twin-screws to its plastics business. One is a hot-face pelletizer with two to 36 rotating knives. It reportedly can be used for sticky elastomer materials that would typically require an underwater pelletizer. The former Thyssen extruders are built to run at low speed with high torque and have screws for shear-sensitive materials like acetal or PEEK. The B-TSK machines are available in sizes from 30 to 180 mm diam.