
WQ-III is suitable for welding internal and external walls of pipelines. No rails are required and welding can be carried out along the arc surface of the workpiece.
CO2 automatic welding tractor is widely used in ships, bridges, locomotives, steel structure, petrochemical industry and other industry, suitable for a variety of welding structures, such as: reinforcement plate, rib plate, cross parts of the welding, box beam welding, etc.

Items | Parameter | Note | |
Tractor | Power supply | AC 220V | |
Size | 240×330×310 | W×L×H | |
Weight | 16Kg | Including swinger | |
Moving mode | Four-wheel drive | Magnet-wheel | |
Walking speed | 0∼700mm/min | ||
Swing motor | DC24V 18RPM | ||
Adjustable range of welding gun | Up and down | ||
Before and after | 85mm | ||
Operating Angle adjustment range | 360° | ||
Carry out Angle adjustment range | 0° | ||
Control | Operating function | Swing mode | ![]() |
Swing speed | 0-10RPM(Show with scale) | ||
Swing scope | 0-±10°(Show with scale) | ||
Left and right residence time adjustment | 0-2S(Show with scale) | ||
Central range of movement | 0-±8° | ||
Inching wire feeding | |||
Walking starts/stops | |||
Welding current/voltage control | |||
Choice of walking direction | |||
Walking speed regulation | 0∼1000mm/min(Show with scale) | ||
Welding/non-welding options |



Our Services & Strength
*We have ability of providing workable solutions to support clients to be awarded with shorter project execution time, fewer man-hour cost and higher efficiency construction/fabrication method and better quality during phase of project bidding.
*Based client's facility/site space availability, we are able to study/design and present matched configurations on project schedule, quality, cost and productivity to guarantee production pace is accordance with project requirement.
*To support project execution, we are always ready to work as fireman to give prompt supply on project material from different consumables, tools, equipments/machines to special merchandise. With flexibility, we are also glad to perform as procurement agent in China to seek required supply resources.
