Steel Structure Welding Robots

Robotic Welding for Structural Steel Fabrication

Import your 3D model and the robot plans its own weld paths — no point-by-point teach programming. Built by a structural steel fabricator that runs 2,000+ of these robots in its own plants.

Proven in Production

2,000+
Robots running in our parent company’s own steel plants
3,000+
Stations shipped to other fabricators
70–120 m
Weld length per robot per day shift
1 : 3–6
One operator runs 3 to 6 stations

Problems We Solve for Steel Fabricators

Labour

Welders are hard to hire and cost more every year

One operator runs 3–6 stations, and each robot welds 70–120 m per day shift.

Programming

Teach programming doesn’t pay off for one-off steel parts

Import a STEP or IFC model — the software finds the welds, plans the path and checks for collisions.

Quality

Manual weld quality varies from welder to welder

Programmed welding, seam scanning before each weld and a built-in structural steel process library.

How It Works: From Model to Weld

  1. 1

    Import the model

    Load a STEP or IFC model, for example exported from Tekla Structures. Flat web plates with stiffeners can also be scanned and modelled at the station.

  2. 2

    Plan automatically

    The software extracts the welds, takes parameters from the process library and checks the robot path for collisions.

  3. 3

    Scan and weld

    Each seam is located by scanning before welding, and the welded length is recorded after each part.

3D simulation of a welding robot on a rail next to an H-beam, showing the planned torch path.
Planned weld path on an H-beam, checked in 3D simulation.

Two Robots for Structural Steel

Two orange welding robots on ground rails welding a steel member, with bright arcs and sparks.

7-Axis Rail-Mounted Welding Robot

For H-section columns, beams and crane runway beams.

  • Width ≤ 1,500 mm
  • 12 m rail, 10.63 m travel
  • STEP / IFC import
Cantilever welding station above a steel plate panel, with the welding arc visible.

8-Axis Cantilever Welding Robot

For bridge steel and wide plate assemblies.

  • Width ≤ 3,500 mm
  • Stiffeners ≤ 600 mm
  • With or without drawings

These two robots cover most steel structure welding. We also build submerged arc, 9-axis, gantry and custom stations.

Personnel examining a fabricated steel component inside our workshop.

Why Fabricators Choose Us

Proven in a fabricator’s own plants

Our parent company, Honglu Steel Construction Group, listed on the Shenzhen Stock Exchange (002541) since 2011, runs 2,000+ of these robots every day.

In-house software and controller

Teachless welding software and robot control developed by our own team, with a process library built for structural steel.

Operators trained in 1–5 days

Training uses your own parts, so operators learn on the work they will actually weld.

Factory-direct, try before you buy

Pricing comes straight from the manufacturer, and you can operate the robots yourself at our factory before you order.

What Our Robots Weld

Every photo is from our own structural steel production.

From Inquiry to Production

  1. 1

    Send your parts

    Drawings, models or photos. We reply within one business day.

  2. 2

    Free part evaluation

    Our engineers check the joints, confirm whether the part suits robotic welding and recommend a layout and quotation.

  3. 3

    See it first

    Join a live video tour, or operate the robots yourself at our factory in Hefei.

  4. 4

    Delivery and training

    Operators learn to run the station in 1–5 days. On-site commissioning and training at your workshop can be arranged; the cost is listed in your quotation.

Before Your First Inquiry

Answers to what buyers ask most before sending an inquiry.

Orange welding robot with torch and vision sensor on a rail carriage.
Robot, torch and vision sensor on the rail carriage.
How much can one robot weld per shift?

Typically 70–120 m per day shift, and up to 150 m on long flat seams. A high share of vertical welds or many short seams reduces output.

How long does it take operators to learn?

Operators learn to run the station in 1–5 days.

Can I see the robots before ordering?

Yes. Book a live video tour on any video app, or visit our factory in Hefei or other plants of our group in China and operate a robot yourself. We pick you up at the airport or station.

Do I need drawings or a 3D model?

Not to start: a description of the part and welds is enough for an inquiry. For welding, most parts use a STEP or IFC model, and flat stiffened plates can be scanned at the station.

Which layout suits my workpiece?

The 7-axis rail-mounted robot suits beams and columns up to 1,500 mm wide; the 8-axis cantilever robot suits bridge units and wide plates up to 3,500 mm; the submerged arc station suits full-penetration seams on box columns.

Get a Free Evaluation of Your Parts

Send a drawing, model or photo of a typical part. Our engineers check whether it suits robotic welding, recommend a station layout and prepare a quotation — free of charge.

Factory-direct pricing. We reply within one business day.

Or email sales@steelweldingrobot.com