A six-axis robot hangs from the end of a column cantilever and travels along a 12 m ground rail as the seventh axis, with a 2.4 m cantilever working range, approaching seams from above to avoid fixture and side-wall interference.
The 7-axis cantilever welding robot uses a column plus cantilever beam structure, with the six-axis robot body hung at the beam end and the whole unit travelling along a ground rail as the seventh motion axis. Approaching the seam from above, it effectively avoids interference from fixtures and workpiece side walls, markedly improving reachability.
The welding power source and control cabinet travel with the column. Together with the Dauphin teach-free welding system and an arm-mounted vision sensor, it delivers automatic seam finding and autonomous path planning — suited to medium and large boxes, tanks and plate assemblies needing multi-angle, wide-area coverage.
| Model | CR7-12m (standard 7-axis cantilever) |
| Configuration | Column cantilever + suspended six-axis robot + rail travel axis |
| Axes | 7 (six-axis body + rail travel) |
| Rail Length | 12 m, single piece |
| Cantilever Working Range | approx. 2.4 m |
| Reach Coverage | approx. 2200 mm inboard of rail, robot base height approx. 2800 mm |
| Travel Drive | 3 kW servo motor + 3 kW drive |
| Lubrication | Jingte 8-channel lubrication |
| Welding Robot | CALF10W-2050 six-axis body |
| Control System | Nabot EtherCAT servo drive |
| Welding Power Source | AOTAI NBC-500RP PLUS digital pulse |
| Torch | Mino W500 water-cooled extended torch + water tank |
| Torch Cleaning Station | Mino TCS2000 |
| Vision System | Weijing line-and-area 3D composite sensor |
| Positioning Accuracy | ±0.05 mm |
| Welding Software | Dauphin teach-free software (steel structure edition) |
| Materials | Carbon steel, low-alloy steel, stainless steel (non-mirror), aluminium alloy (non-mirror) |
| Welding Process | Gas-shielded welding (mixed gas / CO2) |
| Welding Positions | PB horizontal-vertical, PF vertical-up, PG vertical-down |
| Suitable Workpieces | H-section columns, roof beams, crane girders and other steel structures |
| Operating Environment | Temperature -10~45°C, humidity 20~80% |
| Warranty | 12 months overall, 24 months for the robot body |