Gantry-type dual-arc, dual-wire root welding machine
This machine is primarily used for gas-shielded root-pass welding of pre-assembled box girders. After assembly, the box girders are conveyed via a roller table to the root-pass welding station, positioning the weld seam horizontally. By vertically, laterally, and longitudinally adjusting the trolley and welding arm, the position of the welding head and torch can be precisely aligned with the groove weld, ensuring that the gas-shielded welding torch nozzle is accurately aimed at the weld. Once the welding power source and trolley travel are simultaneously initiated, automatic root-pass welding of the box girder groove weld can be performed. The welding arm is equipped with a pneumatic, elastic, mechanical weld-tracking mechanism to maintain precise alignment of the torch with the weld. The machine features a compact structure, convenient operation, and smooth motion.
| Workpiece dimensions | 300~1200mm |
| Welding speed | 0.2~2.0 m/min |
| Return speed | 3m/min |
| Gantry gauge | 4000mm |
| Host power | 3kWe |
| Air supply pressure | 0.5~0.8 MPa |
| Applicable workpiece length | 16000 mm |
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