ZS series two-stage compounding extruder composed by two bands, the first order is the same twin-screw extruder, and the second stage is a single-screw extruder. The device can be a twin screw extruder to achieve the material shearing, kneading, extrusion by a single screw extruder to complete the granulation. Advanced structural materials science to avoid overheating due to the decomposition of the phenomenon. Two-stage compounding extruder with low power consumption, superior product quality, high-yield characteristics of the device and acclaimed. Particularly suitable for the production of PVC, XLPE and other heat-sensitive materials. Scope: carbon black masterbatch PVC cable, PVC transparent bottle feeding, blood transfusion materials. Silane crosslinked PE cable, cable peroxide crosslinking. WPC blend. All kinds of heat-sensitive polymer processing.