... door-window PLC control, pneumatic drive, simple operation, stable capability. Welding three-point, two-point, single point, transom, cross -transom ... corners one-pass make-up and melt spacing, high-precision welding Power supply220V 50Hz Air pressure0.5-0.8 Mpa Input ... power 3.5kw Process range300~1800 mm Overall dimension 4300×870 x1600mm Weight1200kg Three-head Welding Machine Doors and ...