Seamless Four Point Welding Machine for Colored PVC Doors and Windows Product Description The machine is used for PVC win-door welding processing.The four heads can work at the same time.And it enables a one-stop welding for rectangle window frame or pane.It adopts PLC,which features high reliability and wide processing range. It is easy to operate,which is efficient and suitable for batch production. Technical parameter: Input Voltage: 220V 50Hz Input Power: 3.5 kw Operation Air Pressure: 0.5-0.8 mpa Air Consumption: 150 l/min Welding Height: 20-120 mm Welding Width: 120 mm Welding Range: 400-3500 mm Overall Dimension: 4400*1200*1700mm Machine Weight: 2500 kg