plastic extrusion machine production Line / wood plastic extrusion machine / composite profile extrusion machine
1. Overview & Equipment List
This production line is an SJZ65/132 conical twin-screw extruder line, designed for PE wood plastic and WPC profile extrusion. The service conditions are 380V / three-phase / 50Hz, with a center height of 1000 mm. The equipment color follows the company standard (red and white). The complete line includes six core machines: screw feeder, conical twin-screw extruder, calibration table, haul-off unit, cutting machine, and stacker.
2. Screw Feeder
The screw feeder adopts a screw-type automatic forced feeding system with a feeding capacity of 1000 kg/h and a motor power of 1.5 kW. Advantages include convenient operation, simple maintenance, overload protection, automatic detection, and automatic feeding.
3. Conical Twin-Screw Extruder
The screw and barrel are made of 38CrMoAlA forged alloy steel with nitriding treatment, specially designed for wood plastic materials. The screw diameter is 65/132 mm, and the screw length is 1380 mm. The main drive motor is 37 kW (AC). There are 5 heating zones with a total of approximately 22 kW and 3 fan cooling zones. The temperature control range is 50–300°C. Electrical components include Schneider contactors, Omron temperature controllers, and Delixi air switches. The gearbox is a high-torque, low-noise vertical type with carburized and ground gears, cooled by water. The vacuum pump motor is 3 kW, and the forced feeding motor is 0.75 kW. The overall dimensions are 3200 mm × 1550 mm × 2450 mm.
4. Calibration Table
The calibration table has a length of 4 m and a width of 1100 mm, made primarily of 304 stainless steel. It is equipped with 20 cooling water connectors and a 1.1 kW vortex air pump with 4 blow pipes for water removal on the plate surface. The mould installation rail is made of high-quality aluminum alloy with a T-groove profile, and the mould installation center distance is 360 mm. Front and rear movement is driven by a 0.75 kW cycloidal pinwheel reducer with an adjustment range of 800 mm. The table features electric lifting with a screw lift, and the horizontal left/right position can be manually adjusted. A built-in mobile guide with a travel protection switch is included. The overall dimensions are 4050 mm × 1030 mm × 1000 mm.
5. Cutting Machine
The cutting machine uses a transverse cutting method. The cutting motor power is 2.2 kW (special motor for wood plastic profiles). The saw blade has a diameter of 450 mm and a speed of 2800 rpm, suitable for PE wood plastic products. The pressing device is pneumatic with automatic up/down pressing. The saw blade cover is equipped with a dust-proof curtain strip, imported guide wheels, and a tempered glass protective cover. A dust storage box at the bottom collects sawdust, ensuring clean material reuse.
6. Stacker
The stacker has a length of 6 m and adopts a stainless steel bracket structure. Fixed-length cutting is controlled by a proximity switch, and discharge is pneumatic automatic discharge, saving time and labor.
