The unit is optimized in design, referring to the newest foreign technology. The unit has the advantages of even plasticizing, small velocity of cutting, 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 thefrequency changer or the silicon-controlled rectifier directcrrent velocity modulation.The temperature control meter adopts the import or the joint calital product. The vacuum pump of the auxiliary parts and hauling motor both adopt high-quality products. The maintenance is simple and convenient. The unit is also able to direct 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.