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Automation InternationalDanville, Illinois Sales and service(217) 446-9500 Request a quote

Resistance welding machines

Flash butt, seam, spot and projection welders for strong, repeatable welds across a range of materials and part shapes, in manual or automated form.

FBW1 to FBW10
Ten standard flash butt models
200 ton
Maximum upset force
500 ton
Maximum clamping force
Orange and blue flash butt welder with operator platform, control cabinet and welded steel rings

Flash butt welders

Flash, butt and upset machines cover work from small band-saw blades and wire assemblies to large components. They come as flash, upset (flashless) or combination units, for ferrous and non-ferrous materials.

Power and clamping

Choose single-phase AC transformers or three-phase DC or MFDC power supplies. Clamping can be vertical, horizontal or angular, including custom combinations.

What it joins

Structural members, aerospace components, wheels, rings, rods and anodes. Flash and butt welding needs no filler material, flux or shielding gas, and cycle times stay short.

Other processes

Seam, spot and projection machines

  • Resistance seam welders

    Continuous or roll-spot welds formed between rotating copper disc electrodes. They produce gas-tight circular or longitudinal seams, on standard or custom machines.

  • Spot welders

    AC and DC spot welders for small to large production, with electrodes and tooling set up for the material thickness and part shape.

  • Projection welders

    Heat is localized at raised projections, so thicker sections, several welds in one cycle, and studs or nuts can be welded. Manual or automated, with custom fixturing.

  • Support

    Application engineering, operator training and parts supply come with every machine. Service teams handle commissioning, maintenance and process troubleshooting.

Close view of the clamping area on an orange resistance welder
Clamping area, heavy welder
Blue resistance welding machine on the shop floor
Resistance welder

Common questions

How large a flash butt welder can you build?

The ten standard models, FBW1 through FBW10, go up to 200 ton upset force and 500 ton clamping. Machines outside the standard range are custom designed.

Can an existing flash butt welder be converted to MFDC?

Yes. Rebuilds can include a mid-frequency DC power supply and an Assurance Plus control. The rebuild page lists the conversion options.

Do you train operators?

Yes. Training programs, commissioning and process troubleshooting are available from the service team.

Get a quote: Resistance welding equipment

Prefer to talk? Call (217) 446-9500, 7:30 a.m. to 4:30 p.m. CST.

  1. What you need: a new machine, a rebuild, service or parts.
  2. The part and process: material, size and production rate.
  3. For parts: the machine's description, model number and serial number. Photos help.

Call salesGet a quote