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Welding Generators

A welding generator combines a welding power source and a generator in a single machine. Because it makes its own electricity, it allows stick welding on sites with no grid at all while simultaneously powering tools and lighting. It is standard equipment on pipeline, steel structure, infrastructure and mobile maintenance work.

How to choose a welding generator

Two figures are read together. The first is welding current: the maximum amperage decides the electrode diameter and material thickness the machine can handle. A 200 A machine works comfortably with 2.5–3.25 mm electrodes; a 300 A machine takes 4 mm and above, and thicker material. The second is the auxiliary output that powers grinders, drills and site lighting.

The third factor is duty cycle: how many minutes out of ten the machine can weld continuously at full current. On continuous welding work that matters more than the peak current figure.

  • Welding current: decides electrode diameter and material thickness
  • Auxiliary output: usable power for grinders, drills and lighting
  • Duty cycle: continuous welding capacity
  • Diesel engine: long hours on sites with no grid

Frequently Asked Questions

  • What is a welding generator?

    A machine that combines a welding power source and a generator in one body. It produces welding current on sites with no grid and provides an auxiliary electrical output for tools and lighting.

  • Which electrodes can a welding generator run?

    It depends on the welding current. A 200 A machine generally runs 2.5–3.25 mm electrodes; a 300 A machine runs 4 mm and above.

  • Can it supply power while welding?

    Yes. The auxiliary output can run a grinder, a drill or site lighting. When welding and auxiliary output are used together, take care not to exceed the total rating.

  • Can I weld on a site with no mains power?

    Yes — that is precisely what a welding generator is for. Its diesel engine means pipeline, steel structure and infrastructure welding needs no grid connection at all.

  • Can you supply a welding generator that is not listed?

    Yes. Different welding currents, engines and configurations are supplied on a project basis; tell us the requirement and we will quote.