Tweco RG-140 Rotary Ground Device 400A

Stop Fighting Twisted Cables on the Pipe Stand

If you have ever welded pipe on a positioner or turning rolls, you know the frustration of the "cable dance." You get into a good rhythm, laying down a perfect bead, and suddenly your ground lead snaps tight because it has wrapped itself around the pipe three times. You have to stop, break your arc, and untangle the mess. Not only is this annoying, but it ruins your flow and damages your expensive welding cable. The Tweco RG-140 Roto-Ground Clamp is the solution you need to keep your focus on the puddle, not the floor.

This isn't just a standard clamp; it's a rotary grounding device designed specifically for things that spin. The RG-140 attaches securely to your workpiece or the chuck of your positioner and rotates freely along with it. The ground cable stays stationary and relaxed, while the internal copper contacts transfer up to 400 Amps of welding current smoothly into the spinning metal. Whether you are welding heavy wall pipe, fabricating tanks, or doing resurfacing work, this tool ensures you have a hot, stable ground without the headache of twisted leads.

Built by Tweco, a brand synonymous with durability, the RG-140 is tough enough for the daily grind of a fab shop. It features solid copper alloy construction to handle high heat and heavy amperage without overheating. The tension is adjustable, allowing you to dial in the perfect amount of contact pressure. It is an investment that pays for itself by saving your cables from snapping and saving you the time it takes to constantly unravel them. Upgrade your pipe welding setup with the RG-140 and experience the freedom of continuous rotation.