Coperion extruder provides higher torque, throughput
ZSK Mv14 This high-volume twin-screw extruder series from Coperion succeeds the ZSK Mv Plus, offering a 24 percent higher specific torque of 14 Nm/cm³ for greater throughput. The large free screw volume, with an outer to inner screw diameter ratio of 1.8, reduces average shear forces and thermal stress on the melt, and makes the series ideal for applications with high volume requirements, such as processing materials with low bulk density, poor feed characteristics or high levels of additives and fillers. High-performance materials for the screw shafts ensure dependable transmission of the increased torque from the gearbox to the screw elements. Potential applications include recycling of plastic flakes, fibers and regrind; compounds with high additive loading, such as flame retardants or mineral fillers; lightweight compounds containing hollow glass microspheres; masterbatches with high pigment or additive concentrations; biopolymers and other shear- or temperature-sensitive materials; and reactive extrusion processes requiring long residence times at low shear rates.
What's new? The ZSK Mv14 series.
Benefits Significantly higher throughput rates, which can be achieved at lower screw speeds or with a smaller extruder size; greater flexibility for processing demanding formulations and gentler product handling.
Coperion Corp., Sewell, N.J., 201-327-6300, www.coperion.com
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About the Author
Lynne Sherwin
Managing Editor
Managing editor Lynne Sherwin handles day-to-day operations and coordinates production of Plastics Machinery & Manufacturing’s print magazine, website and social media presence, as well as Plastics Recycling and The Journal of Blow Molding. She also writes features, including the annual machinery buying survey. She has more than 30 years of experience in daily and magazine journalism.