Category Overview
Rail-mounted welding robots integrate standard articulated industrial robotic arms with motorized linear guide rails to expand the functional workspace for large-scale metal fabrication. By mounting the robot on a high-precision ground or overhead track, the system executes continuous multi-pass welding along workpieces exceeding standard robot reach—such as structural beams, girders, and cylindrical vessels up to 30 meters. Synchronized external axes (Axis 7/8) controlled via the primary robot teach pendant eliminate manual repositioning cycles and maintain consistent arc-on time.
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![Long-Reach Rail-Mounted Welding Robot]()
Long-Reach Rail-Mounted Welding RobotThe Long-Reach Rail-Mounted Welding Robot integrates an articulated industrial welding manipulator onto a precision-machined floor- or overhead-mounted linear guide track. This architecture... -
![7-Axis Rail-Mounted Welding Robot]()
7-Axis Rail-Mounted Welding RobotIntegrates a 6-axis industrial manipulator with a motorized linear slide rail to extend longitudinal workspace for oversized workpieces without manual repositioning. A floor- or gantry-mounted... -
![Overhead Rail Welding Robot]()
Overhead Rail Welding RobotThe Overhead Rail Welding Robot mounts a six-axis industrial manipulator onto an elevated gantry or monorail track system. This configuration removes ground-level tracks from the shop floor,... -
![Floor-Mounted Rail Welding Robot]()
Floor-Mounted Rail Welding RobotThe Borunts Tech Floor-Mounted Rail Welding Robot integrates an articulated industrial robot onto a precision-machined ground linear track, expanding the operational envelope for large-scale... -
![Long-Travel Welding Robot]()
Long-Travel Welding RobotThe Chuanglida Intelligent Equipment Long-Travel Welding Robot integrates an articulated industrial arm onto a precision linear travel track (floor- or gantry-mounted), extending the operational... -
![Linear Rail Welding Robot]()
Linear Rail Welding RobotThe Boruntes BRT-LRT Series integrates an articulated industrial robot with a motorized linear track system (floor or wall-mounted) for continuous-duty welding of oversized workpieces. It extends...
Product Range
|
Model Series |
Configuration |
Max Track Length |
Payload Capacity |
Primary Application |
|
BRT-R1000 |
Floor-Mounted Single Carriage |
Up to 12 m |
100 - 200 kg |
Structural steel, trailer chassis |
|
BRT-G2000 |
Overhead Gantry Rail System |
Up to 30 m |
200 - 500 kg |
Plate girders, shipbuilding panels |
|
BRT-D3000 |
Dual-Carriage Synchronized Track |
Up to 24 m |
2 x 150 kg |
Simultaneous multi-torch long-seam welding |
Technical Specifications
|
Specification |
Details |
|
Track Length Modularity |
Bolt-together modular segments of 2 m or 3 m up to 30 m; custom lengths available. |
|
Linear Axis Repeatability |
+/- 0.03 mm via laser interferometer over full stroke. |
|
Maximum Travel Velocity |
1.2 m/s with programmable acceleration/deceleration ramps. |
|
Drive Mechanism |
Ground helical rack and pinion coupled with low-backlash planetary gearbox (< 3 arcmin backlash). |
|
Controller Compatibility |
Fanuc, ABB, Yaskawa, Kuka. |
|
Power Source Integration |
Digital pulse MIG/MAG systems (Fronius TPS/i, Miller Auto-Axcess, Lincoln Power Wave). |
|
Cable Management |
Enclosed energy chain isolating control, gas, and cooling lines from weld spatter and high-frequency EMI. |
Key Features
Thermal Compensation
Stress-relieved high-grade alloy steel (Q345B, annealed at 650°C) resists thermal warping during high-amperage continuous welding.
Synchronized Interpolation
Direct integration of track drive motors into robot kinematics enables seamless simultaneous arm and linear axis movement.
Debris Protection
Hardened steel linear guides feature wiper seals and stainless steel bellows covers to block slag and metal dust.
Modular Alignment
Adjustable leveling pads and alignment pins every 1,000 mm allow leveling within 0.1 mm/m.
Applications
Railway Manufacturing
Longitudinal and circumferential seam welding for freight car underframes and hopper bodies.
Structural Steel
Continuous fillet and butt welding of H-beams, box columns, and crane girders up to 25 meters.
Pressure Vessels
Multipass submerged arc welding (SAW) or heavy MIG welding on large cylindrical storage tanks and boiler shells.
Shipbuilding
Deck panel stiffener welding and sub-assembly joining in modular shipyard bays.
Optional Equipment & Integration
Laser seam tracking sensors for real-time joint tracking during multi-pass welding.
Pneumatic or hydraulic part clamping fixtures tied to the robot safety PLC sequence.
Automated torch cleaner and wire cutter stations mounted at the rail terminus.
On-board fume extraction hoods tracking dynamically with carriage movement.
Customization
Tailored rail lengths matching specific factory bay dimensions.
Heavy-payload cantilever brackets supporting tandem wire feeders, heavy laser optics, or specialized torches.
Corrosion-resistant epoxy paint systems or stainless steel rail shielding for harsh chemical or marine environments.
Safety light curtains, interlocked perimeter fencing, and pneumatic sliding access doors engineered to ISO 13849-1 standards.
Bed Machining: Rail mounting surfaces and rack mating faces machined on a 16-meter floor-type CNC boring and milling machine in a temperature-controlled workshop.
Stress Relieving: All structural steel weldments undergo thermal annealing prior to precision machining.
Dimensional Inspection: Laser tracker verification of track alignment, parallelism, and pitch error across full operating stroke prior to crating.
Load Testing: 48-hour continuous dry-run cycle testing of carriage drive motors, gearboxes, and energy chains under simulated payload.
Standards & Safety
CE Machinery Directive
Compliant with 2006/42/EC, including EMC immunity directives for high-frequency welding arc interference.
Electrical Safety
Control cabinets built to NFPA 79 / IEC 60204-1 standards with dual-channel safety relay architecture.
Safety Integrity Level
Performance Level d (PLd) / Category 3 safety circuits supporting emergency stop zones, safety fence interlocks, and low-speed pendant teaching modes.
Product Selection Guide
Workpiece Length Routing
For workpieces under 6 meters: Use a fixed-base robot with a workpiece positioner.
For workpieces between 6 and 15 meters: Choose the BRT-R1000 Floor-Mounted Single Carriage Rail System.
For workpieces exceeding 15 meters: Choose the BRT-G2000 Overhead Gantry or BRT-D3000 Dual-Carriage System.
Required Payload Routing (Robot + Torch + Wire Feeder)
For payloads under 150 kg: Select standard duty linear axis drive with single pinion.
For payloads over 150 kg: Select heavy-duty dual-pinion preload drive with zero backlash.
Environmental Protection Routing:
For standard shop floors: Use enclosed energy chain with standard wiper seals.
For heavy spatter environments: Use stainless steel telescopic covers with pneumatic shutter shields.
FAQ
As one of the most professional rail-mounted welding robots manufacturers and suppliers in China, we also support customized service. Please feel free to buy discount rail-mounted welding robots in stock here from our factory. For price consultation, contact us.
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