Powerweld 600A Heavy-Duty C-Type Earth Clamp

Get a Grip on Your Weld Quality

We've all been there: you're in the middle of a long bead, and suddenly your arc starts sputtering, or you smell something burning that isn't the rod. You look down, and your cheap spring clamp is glowing red hot. Don't let a bad ground ruin your welds or your day. The Powerweld 600 Amp C-Style Ground Clamp is built for welders who need a connection that stays put and stays cool. If you are running high amps—whether you are gouging, burning big flux-core wire, or welding heavy plate—you need a clamp that can take the heat.

The "C" style design is the secret weapon here. Unlike spring clamps that you just clip on, this clamp screws down tight. You can crank it down with a wrench if you have to, ensuring it bites through rust, scale, and paint to get to the clean metal underneath. Once it's on, it's not going anywhere. This means you get a consistent, smooth arc from start to finish, without the voltage fluctuations that cause porosity or irregular bead profiles. It's made from a heavy copper alloy that conducts electricity like a champ, meaning the power goes into your weld, not into heating up your clamp.

This clamp is a beast. It's rated for 600 amps, which covers almost anything you'll throw at it in a standard shop or field environment. It's perfect for building up structural beams, pipe welding on stands, or any job where you can set your ground and forget it. The cable lug connection is solid and easy to install, ensuring your lead doesn't wiggle loose halfway through a shift. Upgrade to the Powerweld ECWG60C and stop fighting your equipment—start welding with confidence knowing your ground is solid as a rock.