The new ZSK Mc18 line of twin-screw compounding extruders from Coperion Corp. Ramsey, N.J., features a 30% increase in specific torque—to 18 Nm/cm3—and a 30% gain in throughput rates compared with other designs. Due to the screws’ higher degree of fill, the machine is said to improve compound quality, as well.
Available in 32 to 119 mm diam., the ZSK Mc18 uses new aerospace-grade, high-performance materials for the screw shafts. These materials are said ensure full transmission of the torque from the drive unit to the screw. Shrink-fit, oval barrel liners reportedly improve heat transfer; cartridge heaters generate heat exactly where needed; and an improved cooling system ensures uniform temperature distribution. Together with an improved insulated barrel cover, these adaptations reportedly cut specific energy input/lb of material processed by up to 13%.
The new ZSK series has retained the proven screw OD/ID ratio of 1.55, which enables modernization of an existing ZSK MEGAcompounder Plus to the ZSK Mc18 design. Coperion also says the the ZSK Mc18 offers an attractive price-performance ratio: Its higher throughput and relatively low investment cost reduce manufacturing cost/lb of material processed, allowing for a quicker ROI.
(201) 327-6300 • Coperion.com
663 E Crescent Ave. Ramsey, NJ 07446
Phone (201) 327-6300 Fax (201) 825-6491