K910-2 - Lincoln GC-500 Spring Loaded Ground Clamp 500A

Industrial Grade Grounding Solution

The Lincoln Electric GC-500 Work Clamp (K910-2) is a high-performance grounding accessory designed to meet the rigorous demands of professional welding environments. Establishing a solid electrical ground is critical for maintaining a stable arc and ensuring high-quality welds, particularly in high-amperage applications. The GC-500 is rated to handle up to 500 amps at a 60% duty cycle, making it an excellent choice for heavy fabrication, structural steel work, and industrial manufacturing where consistent power delivery is essential.

Engineered for efficiency, this work clamp moves away from traditional screw-type designs that can be slow to attach and detach. Instead, it utilizes a powerful spring-loaded mechanism. This design allows the operator to simply squeeze the handles, position the jaws over the workpiece, and release. The heavy-duty spring instantly applies significant pressure, biting through minor surface contaminants to establish a low-resistance connection. This "squeeze and go" functionality significantly reduces setup time, allowing welders to focus more on the arc and less on equipment adjustments.

The physical construction of the GC-500 combines the durability of steel with the conductivity of copper components. Its jaws open to a generous 2-1/2 inches (63 mm), providing the versatility to clamp onto a wide range of materials, including thick plates, large pipes, and structural beams. For electrical connectivity, the clamp features a direct lug attachment point. The welding cable lug bolts directly to the body of the clamp, eliminating intermediate connectors that can introduce resistance and heat. This direct path ensures maximum current transfer efficiency and prolongs the life of the cable assembly.

Whether utilized in a workshop or out in the field on a pipeline, the Lincoln GC-500 offers the reliability required for Stick, TIG, MIG, and Flux-Cored welding processes. Its robust build quality ensures it can withstand the mechanical abuse and heat typical of welding sites, providing a long service life and dependable performance.