Piano-Key Longitudinal Seam Welding Machine

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haibao robot · Automatic welding equipment

Consistent clamping for straight and longitudinal seams

The haibao robot longitudinal seam welding machine combines a guided welding carriage with piano-key clamping for cylindrical shells and flat-sheet butt joints. It is intended for repeat production where joint alignment, backing contact and controlled torch travel matter.

Hold the joint along its full length

Pneumatic clamping presses both sides of the joint against the backing arrangement. The piano-key design supports heat removal and helps limit movement during welding. Joint preparation, fit-up and the backing design remain essential to the finished weld.

Select a process for the material

The equipment family supports TIG, MIG/MAG and plasma welding configurations. Applications include carbon steel, stainless steel, aluminum alloys and titanium alloys. Single-sided welding with a formed reverse bead is possible with an appropriate process, backing arrangement and qualified procedure.

Applications across shell fabrication

Typical applications include food-processing equipment, medical machinery, dyeing equipment, busbar enclosures, chemical vessels, power piping and HVAC shells. Machine height and guarding can be adapted to the workpiece layout.

Which thicknesses can be evaluated?

The published equipment-family range is 0.4–12 mm for medium and thin sheet or shells. This is a selection range, not a promise that every material and process can weld the whole range in one pass. Sample trials and the final technical specification establish the usable window.

Configuration reference

Discuss your application

Share the material grade, thickness, seam length, shell diameter, joint preparation and daily output. Request a seam-welding proposal with clamping and backing recommendations.

haibao robot
Shao Yicheng · Key Account Project Director · International Welding Engineer (IWE)
Email: masterhyper@163.com
Phone / WhatsApp: +86 177 5158 3908
Office: +86 519 8837 0688

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