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0000500415 - ESAB 400A Magnetic Welding Ground Clamp

Packaging: pack of 1
$105.13/EA $56.26/pack of 1 only $56.26/EASave 46%

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OVERVIEW

Stop Struggling with Ground Clamps on Flat Surfaces

Every welder knows the frustration of trying to find a good ground on a massive sheet of steel or the middle of a large pipe. Standard spring clamps slide off, pop loose, or simply can't open wide enough to grip the material. The ESAB Magnetic Earth Clamp 400A solves this problem instantly. By using a powerful magnet, this clamp sticks anywhere on your steel workpiece, giving you a solid, reliable ground connection in seconds. No more searching for an edge, and no more welding on temporary tabs just to get a ground.

Heavy-Duty Power Handling

Don't let the convenience fool you; this is a serious tool for serious work. Rated for 400 Amps, this magnetic clamp can handle the heat of heavy structural welding, high-deposition MIG, and flux-cored applications. The broad contact face ensures that the current transfers smoothly into the workpiece, preventing the "hot spots" and arcing that can occur with smaller, cheaper magnets. A solid ground means a smoother arc, less spatter, and better penetration, making your job easier and your welds cleaner.

Versatility and Speed

Time is money in the welding shop. This magnetic clamp drastically reduces setup time. Just place it on the metal, and you are ready to weld. It is perfect for:

  • Large Plate Fabrication: Place the ground right next to your weld joint for optimal arc stability.
  • Pipe Welding: Attach the ground to the side of a large diameter pipe without needing a specialized strap or clamp.
  • Repair Work: Quickly attach to machinery frames or automotive chassis where edges are inaccessible.

The ESAB Magnetic Earth Clamp is built to last. It is designed to withstand the rough-and-tumble environment of a welding shop. While it makes grounding easier, remember that it works on ferrous (magnetic) metals like carbon steel. For welders working on large steel projects, this tool is a game-changer that saves time and frustration on every job.

Additional Information
Amperage:400
Brand:ESAB
Clamp Type:Magnetic
Amperage Capacity:400A
Application:Grounding, Welding
Surface Compatibility:Ferrous Metals, Flat Surfaces, Large Pipes
Packaging Description:pack of 1

INCLUDED

  • 1 x Magnetic Earth Clamp (400A)

APPLICATIONS

  • Structural steel fabrication
  • Shipbuilding and repair
  • Large diameter pipe welding
  • Tank and vessel manufacturing
  • General heavy equipment repair
  • Automotive chassis work

FAQ

This magnetic earth clamp is rated for up to 400 Amps.

No, the magnetic clamp requires a ferromagnetic material to attach. It will not stick to aluminum and may not stick effectively to certain grades of stainless steel (like 300 series).

Extreme heat can affect magnetism. It is recommended to place the clamp close to the weld but far enough away to avoid direct overheating from the arc or heat-affected zone.

Metal filings and spatter can accumulate on the magnet. Simply wipe the surface clean with a rag or use compressed air to ensure a flush contact with the workpiece.

Yes, provided the amperage is within the 400A limit and the material is magnetic. A good ground is essential for stable TIG arcs.

It is not necessarily 'better' but serves a different purpose. It is superior for flat surfaces where a spring clamp has nothing to grip, but a spring clamp is better for non-magnetic metals.

This specific model is typically a fixed magnet design. Refer to the specific unit instructions, but generally, these are pulled off by force or leverage.

You should use a welding cable sized appropriately for 400 Amps (typically 2/0 or 3/0 AWG) to prevent overheating the cable.