Large Gantry Welding Robot

The Boruntes Large Gantry Welding Robot is an industrial automated platform engineered for structural fabrication of oversized, heavy metal components. Built around a rigid overhead gantry framework, the system provides multi-axis coordinated motion to execute continuous, high-deposition welds across expansive work envelopes without repositioning the workpiece.

Rigid Box-Type Gantry Structure: Fabricated from stress-relieved structural steel plates, eliminating bridge sag and maintaining path accuracy across spans exceeding 10 meters.

Synchronized Multi-Axis Motion: Dual-side rack-and-pinion drive systems on the X-axis paired with AC servo motors ensure absolute positional tracking and prevent gantry skewing.

Modular Rail Integration: Ground-hardened precision guide rails bolted to machined foundations, delivering linear positioning repeatability within +/-0.1 mm.

Heavy Payload Capacity: Accommodates heavy welding torches, seam tracking sensors, wire feed units, and multi-kilogram payloads without mechanical bind.

Structural Engineering: Longitudinal beams, crane girders, and massive box columns used in high-rise construction and heavy industrial plants.

Energy Sector: Wind turbine tower sections, tubular foundation piles, and thick-walled pressure vessels.

Rail Transit & Heavy Transport: Locomotives underframes, bogie frames, and oversized trailer chassis.

Shipbuilding: Modular ship deck panels, hull stiffeners, and large structural sub-assemblies.

The system integrates multi-process welding technology tailored to heavy manufacturing requirements:

Power Source Integration: Direct compatibility with industry-standard multi-process inverters, supporting pulsed MIG for spatter-free root passes and high-deposition SAW for thick plate filling.

Wire Delivery Subsystem: Heavy-duty dual-drive wire feeders paired with 15kg to 30kg spool or bulk drum setups, preventing bird-nesting during long continuous runs.

Seam Tracking & Sensing: Laser vision or tactile seam tracking modules adjust the torch path in real time to compensate for thermal distortion and edge preparation variances.

Fume Extraction Integration: On-torch or overhead extraction hoods interface directly with the gantry frame to capture welding fumes at the source.

Envelope Scaling: Custom span widths and vertical clearances engineered to match existing factory crane clearances and workpiece dimensions.

Multi-Torch Configuration: Dual-bridge or multi-head setups operating simultaneously on a single rail to double deposition rates on symmetric parts.

External Axis Synchronization: Coordinated control packages for integration with motorized turning rolls, head-stock/tail-stock positioners, and sliding floor tracks.

Environment Hardening: Heat shields, water-cooled torch assemblies, and dust-sealed gear housings for heavy gouging, flux-cored, or submerged arc environments.

Material Preparation: Flame and plasma-cut structural plates undergo edge milling and mechanical stress relief (thermal annealing) prior to welding.

Machining Accuracy: Gantry beams and column weldments are machined on large-scale floor-type boring and milling centers in a temperature-controlled environment to ensure straightness tolerances.

Geometric Calibration: Laser interferometer testing verifies linear positioning accuracy, squareness, and backlash compensation across the entire working envelope prior to disassembly.

Factory Acceptance Testing (FAT): Every system undergoes a dry-run operational test for 72 continuous hours, simulating full-load multi-axis motion and communication handshakes.

Functional Safety Architecture: Equipped with dual-channel safety PLC architecture, integrating Category 4, Performance Level e (PL e) emergency stop loops in accordance with ISO 13849-1.

Perimeter Safeguarding Integration: Interfaces seamlessly with light curtains, safety laser scanners, and physical interlocked safety fencing to restrict personnel access during automated gantry traversal.

Electrical & Control Compliance: Main control enclosures are engineered to IP54/IP55 standards, utilizing components certified to CE, UL, and CSA electrical codes depending on regional delivery destinations.

Operator Safety Interlocks: Software and hardware overrides prevent gantry motion when service hatches are open, maintenance lockouts are engaged, or welding shielding gas pressure drops below safe thresholds.

Remote Diagnostics: Secure VPN gateway module enables direct connection for PLC logic updates, parameter tuning, and troubleshooting by Boruntes engineers.

Preventive Maintenance Schedule: Detailed component wear-replacement intervals provided for servo drives, gearboxes, bearings, and contact tips.

Local Spares Inventory: Critical wear parts and standardized replacement motors stocked globally to minimize logistics downtime.

On-Site Commissioning: Field service engineers supervise mechanical assembly, rail alignment, electrical tie-in, and initial weld procedure qualification (WPQ).