The SJSZ65/132 conical twin-screw extruder is adopted, with ABB frequency converter speed regulation, Siemens PLC control, and Omron temperature control instrument selected. It features a wide adjustment range, high temperature control accuracy, and convenient and reliable operation. The auxiliary equipment of the production line consists of a vacuum shaping table, a traction machine, a cutting machine and a material pushing frame. At the same time, it is equipped with a large forced cooling device to ensure the expected shaping effect of PVC profiles. The crawler traction machine adopts high-quality reducer motors and ABB frequency converters, featuring a reasonable structure, large traction force and stable traction.