
Cross-arm welding positioner
The cross-arm welding positioner is a key auxiliary device in automated welding systems. Comprising a sturdy column and a horizontal boom that can rise/lower and extend/retract, it provides precise two-axis (vertical Y and horizontal X) movement for the welding torch or head. It positions the torch quickly and stably at any required seam location, making it especially suitable for longitudinal and circumferential seam welding of large cylinders, heads, flanges, and structural parts.



Cross-arm Welding Positioner – Precise Positioning for Efficient Welding
The cross-arm welding positioner is a key auxiliary device in automated welding systems. Comprising a sturdy column and a horizontal boom that can rise/lower and extend/retract, it provides precise two-axis (vertical Y and horizontal X) movement for the welding torch or head. It positions the torch quickly and stably at any required seam location, making it especially suitable for longitudinal and circumferential seam welding of large cylinders, heads, flanges, and structural parts.
Key Features:
Rigid & Stable Structure: Heavy-duty steel construction with stress-relief treatment ensures long-term stability; precision-machined guideways with high-accuracy rollers or linear guides guarantee smooth, vibration-free travel.
Precise & Smooth Drive: Variable-frequency drives or servo motors on both lift and telescopic axes offer infinite speed control and positioning accuracy up to ±0.5mm, ensuring consistent weld quality.
Safe & User-friendly: Optional wireless remote control and touchscreen HMI simplify operation; built-in mechanical stops, electrical interlocks, and anti-drop devices ensure maximum safety for personnel and equipment.
Flexible & Expandable: The boom end accepts various torch holders, and can integrate laser seam trackers, oscillators, flux recovery systems, etc. Seamless coordination with positioners and roller beds builds a fully automated welding workstation.
Typical Applications:
Submerged arc, gas-shielded, and TIG welding of large cylindrical vessels, boilers, wind tower sections, shipbuilding, pipe spools, and heavy steel structures.
Specification Range:
Boom extension stroke: 1m ~ 8m; column lift stroke: 1m ~ 6m. Custom sizes available upon request.


