WWWWGC-600 - 600 Amp Heavy Duty Welding Ground Clamp

Reliable Grounding for High-Amperage Welding

The WWWWGC-600 Heavy Duty Ground Clamp is an essential component for professional welders who demand reliability and performance in their welding circuit. A welding machine is only as good as its connections, and the ground clamp (or work clamp) is often the most overlooked part of the setup. Poor grounding can lead to unstable arcs, wandering welds, excessive spatter, and even damage to the welding machine itself. The GC-600 is engineered to solve these problems by providing a rock-solid, low-resistance connection to your workpiece.

Designed to handle electrical currents up to 600 Amps, this clamp is built for heavy industrial applications, including structural steel fabrication, shipbuilding, and heavy equipment repair. Unlike standard light-duty clamps that can overheat and lose tension, the GC-600 features a powerful, heavy-duty spring that maintains high clamping pressure over time. This pressure is crucial for biting through light rust or scale and ensuring that the copper alloy contact pads make full electrical contact with the base metal.

The construction of the clamp combines durability with conductivity. The main body is crafted from rugged steel to withstand the mechanical abuse of the shop floor—drops, drags, and impacts—while the contact points are made from high-grade copper alloy to facilitate efficient current transfer. The wide jaw opening allows the operator to attach the clamp to a variety of surfaces, from thick plates to pipe sections and structural beams. Installing your welding cable is straightforward, with a secure lug or bolt-on connection point that accommodates heavy-gauge cables up to 4/0 AWG, ensuring that the entire current path from machine to work is optimized for performance.