Onomastics: GTSY series parallel counter-rotating twin screw extruders come from GTS parallel co-rotating twin screw extruder. Y stands for counter-rotating in Chinese language.

    As an experienced extruder supplier in China, Nanjing Gorray Extrusion Equipment LLC has ameliorated the design of high speed counter-rotating twin screw extruder to make it more suitable for polyvinyl chloride (PVC) and polyethylene terephthalate (PET).

    The twin screws of extruder rotate in reverse directions, which is the predominant difference from a co-rotating twin screw extruder. Less shearing is attained during the process, which is the major purpose we aim at. The traditional application of a counter-rotating twin screw extruder is in PVC industry; but we have also upgraded it as a powerful extruding machine in PET compounding and PET recycling industries as well as in many other fields.