In heavy‑equipment, steel‑structure and large‑valve manufacturing industries, welding long seams on oversized components remains a tough production challenge. Traditional single‑robot equipment requires long processing hours, while manual welding easily causes thermal distortion and inconsistent weld quality. The dual‑robot gantry welding workstation delivers proven and reliable automation solutions for heavy large‑part welding. Two welding robots are mounted on a travelling heavy‑duty gantry frame. Long‑stroke ground rails extend working range, and dual‑robot coordination meets mass‑production requirements for heavy workpieces.
The workstation consists of heavy‑load gantry beams, long‑travel ground rails, dual robot arms, synchronous motion control system, laser seam‑tracking unit, welding power sources, safety guards and HMI control cabinet. Twin robots can weld symmetric seams synchronously or handle separate welding zones independently. Built‑in anti‑interference algorithms ensure stable operation along complex motion paths. Supporting MIG/MAG, TIG and plasma cladding, it performs structural welding for H‑beams, box girders and bridge components, as well as wear‑resistant plasma cladding for sealing surfaces of large butterfly valves, ball valves and nuclear‑grade valve bodies.
Synchronized dual‑robot welding delivers balanced heat input and restrains thermal distortion of large weldments, greatly reducing post‑weld correction and rework and improving productivity compared with single‑robot gantry systems. Laser seam‑tracking compensates assembly gaps and clamping offset in real‑time. Saved proven process parameters are reusable to guarantee stable weld quality and lower defect rates during mass production. Only one operator is needed to supervise the whole station, easing the shortage of skilled welders. Enclosed barriers isolate arc flash and welding fume to improve workshop safety.
Gantry span and rail travel length can be customised according to workpiece dimensions for different site conditions. Complete turn‑key service includes on‑site installation, commissioning and hands‑on training, helping heavy‑industry manufacturers break large‑part welding bottlenecks and realise simultaneous improvement of output and product quality.