... Description Used for welding PVC door-window PLC control, pneumatic drive, simple operation, stable capability. Weld three-point, two point, single point, transom ... power4.5kwWelding range400~4500(mm) Welding height20~130 ( mm ) Welding width120mmOverall dimension5300x870x1600(mm)Weight 1500kg aluminum window aluminum window... Four-head Welding Machine Windows and doors machines