The maximum diameter of the production line for 630mm, extrusion host has SJZ conical twin screw extruder and parallel twin-screw extruder. Extruder parts: The machine is equipped with dosing device, so that out of the amount can be matched with the feeding quantity, to ensure stable extrusion products. Due to the characteristics of the conical screw, feed zone with a larger diameter PVC drain line manufacture of materials and shear rate of heat transfer area is relatively large, beneficial plasticized PVC drain line equipment materials, metering section of the screw diameter is small , reducing the heat transfer area and the shear rate of the melt PVC drain line unit, so that the melt can be extruded at a lower temperature. When rotation of the screw barrel, push the head after the plasticized PVC compound to achieve compaction, melt-kneading a homogenizer; and to achieve exhaust, dewatering purposes. Feeding device and screw drive with frequency control, enabling synchronous speed PVC drain line machinery, Hyacinthe (certified), PVC drain line is provided by Qingdao Machinery Co. Hyacinthe. Qingdao Hyacinthe Machinery Co., Ltd. (www.asuntmachine.com) is a leader in Qingdao, Shandong Province, the injection molding machine, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Hyacinthe leadership with the staff warmly welcome all inquiries negotiations to create a better future Hyacinthe.