The unit is optimized in design, referring to the newest foreign technology. The unit has the advantages of even plasticizing, small velocity of curing. High output, long service-life and so on. The unit is composed of conical double-screw extruder, vacuum calibration table. Haul off, cutter, foil machine. Stackrack, etc. The main machine adopts imported frequency converter for governing. The tempe-rature controller adopts Japan RKC product. The vacuum pump of the auxiliary parts and hauling motor both adopt high-quailty products. The maintenance is simple and convenient. The unit is also able to directly extrude artificial wood foamed profile material. The result is better than that of the single-screw extruder. The plastics-steel door and window profile production line adopts conical double-screw extruder, which process PVC door and window profile materials, plastics-steel compound material. Multiple-hole wire pipes, decoration profiles and so on.

