A six-axis robot and AOTAI power source are mounted together on a 12 m ground rail slide, travelling along the rail to weld fillet joints on H-section columns, roof beams and crane girders continuously and automatically.
GRR-12m is the standard single-robot configuration of the ground rail series: one six-axis robot body, welding power source and wire feeder are integrated on a 12 m ground rail slide. The unit travels back and forth along the rail, extending the robot working range from a single station to the whole production line.
Equipped with the Dauphin autonomous decision teach-free welding system and an arm-mounted line laser 3D camera, it automatically identifies seam position and type after loading, then plans the welding path on its own — no manual teaching or offline programming required. Suitable for batch welding of steel beams and columns, box sections and trusses.
| Model | GRR-12m (single-robot ground rail) |
| Configuration | Ground rail slide + six-axis robot |
| Rail Model | CALF1200, single 12 m section |
| Rail Length | 12 m (X axis) |
| Robot Working Width | approx. 1.2 m |
| Rail Payload | 6000 kg |
| Max Travel Speed | 0.98 m/s |
| Additional Axes | 1 (rail travel) |
| Drive Train | HSR120 planetary gearbox (1:16) + 2 kW servo + JGW35 linear guide |
| 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 |