Compact Light-Duty Welding Manipulator with 2m Stroke, Stable and Precise for Small & Medium Vessel Fabrication

The core column and boom are built from thickened, high-quality rectangular steel profiles using full-penetration integral welding technology. After welding, the entire frame undergoes high-temperature annealing stress-relief treatment to completely eliminate internal welding stress and structural fatigue tension.

All guide rail mounting surfaces and assembly matching surfaces are machined by high-precision CNC gantry milling, ensuring ultra-high flatness, verticality and overall structural rigidity. The whole machine shows no deformation, no shaking and no vibration during long-term 24-hour continuous industrial operation, guaranteeing zero deviation of the welding torch travel track.

The horizontal boom uses an optimized box-type anti-bending and anti-torsion structure that effectively resists structural torsion and deflection caused by long-distance extension and heavy-load operation.

Equipped with high-precision linear guide rails and silent rolling sliding pairs, the boom runs smoothly, stably and silently without jitter, pause or sticking. The effective working stroke reaches 2000mm, fully accommodating long straight seams of rolled plates and large-diameter circular seams of medium-sized tank bodies.

Constant-speed travel ensures uniform torch movement and stable heat input, fundamentally avoiding welding ripples, uneven bead width and local overheating deformation defects.

The vertical lifting mechanism adopts an industrial worm gear reducer and a double synchronous heavy-duty chain drive structure with automatic mechanical self-locking. The effective lifting stroke is up to 2000mm, supporting large-range height adjustment.

It freely adapts to different roller frame heights, different workpiece diameters and multi-layer multi-pass welding process requirements. The lifting process is stable and synchronous — no sliding down, no shaking and no tilting — ensuring consistent welding height and stable arc distance for every welding layer.

The thickened integral heavy base offers strong compression resistance, anti-vibration and load-bearing performance. It supports 360° free manual rotation of the entire column and boom assembly.

Workers can flexibly adjust the welding angle and working direction according to workpiece placement without moving heavy tanks, barrels and pipes. This enables multi-angle welding and multi-station shared operation of a single machine, greatly improving workshop space utilization and production flexibility. An electric automatic rotation system is optional for intelligent production line configuration.

Both horizontal telescopic movement and vertical lifting movement use full industrial infinitely variable speed regulation technology. The speed adjustment range is precise and detailed, meeting the needs of thin-plate fine welding, thick-plate multi-pass precision welding and fast idle return stroke.

Stable mechanical constant-speed operation completely eliminates manual speed fluctuation, effectively solving common welding defects such as undercut, burn-through, incomplete penetration, slag inclusion and irregular weld forming.

The professional industrial torch bracket supports six-direction full precision adjustment: up, down, left, right, forward and backward linear displacement plus 360° arbitrary-angle rotation.

According to different plate thickness, groove angle, weld gap and welding industry standards, operators can accurately calibrate arc length, torch inclination and welding offset position to achieve precise seam fitting, ensuring high-standard and consistent weld quality in batch production.

All welding cables, power lines, control signal lines and gas transmission pipelines are fully installed in high-toughness engineering plastic energy chains.

The fully enclosed protective structure prevents wire stretching damage, friction aging, pipeline loosening and gas leakage caused by long-term reciprocating mechanical movement. It greatly improves equipment safety, operational stability and overall service life while reducing daily failure rate and maintenance cost.

The 2m×2m super-large double stroke provides comprehensive three-dimensional working coverage, handling almost all medium-sized cylindrical workpieces in the industry. Compatible with all mainstream welding machines and welding rotators, it integrates longitudinal seam and circumferential seam welding functions in one machine, greatly improving equipment utilization rate and saving factory procurement cost.

Unlike traditional fixed single-direction welding equipment, the 360° rotary base enables free switching of welding angles and multi-station cross operation. It does not restrict workpiece placement direction, perfectly adapting to limited-space workshops and flexible production requirements.

Automated constant-speed mechanical travel completely eliminates human operation errors. The weld seam features a flat surface, uniform width, stable penetration, no pores, no slag inclusion and no deformation. It reduces post-weld grinding, polishing and rework workload by more than 70%, meeting industrial and sanitary high-standard welding requirements.

The humanized intelligent remote control system offers simple logic and intuitive operation. Ordinary workers can operate proficiently after short training, completely removing dependence on high-paid senior welders and solving the industry pain points of welder shortage and unstable manual welding quality.

Despite the large working stroke, the overall structure is compact and reasonable, occupying less workshop space. No complicated foundation construction or factory transformation is required, so the equipment can be installed, debugged and put into formal production quickly.

The whole machine uses a thick industrial steel structure and standardized universal accessories. All moving parts are treated with anti-rust, anti-corrosion and anti-wear technology. Long-term continuous operation is stable and reliable with an ultra-low failure rate. Spare parts are easy to purchase and replace, saving later maintenance time and economic loss.