500A Welding Clamp

This clamp is rated to handle up to 500A of current, making it suitable for high-current welding applications while maintaining a stable grip and connection.

The clamp features an adjustable grip from 4 inches to 6 inches, allowing you to securely accommodate different workpiece sizes and maintain a steady disposition during welding. It also includes a spring-loaded mechanism for quick, repeatable adjustments.

The clamp includes protective features such as a dedicated tray and isolator designed to mitigate higher current surges, including scenarios involving lightning activity. This helps reduce arcing risk and improves safety and reliability in outdoor or high‑surge environments.

The clamp uses an automatic return spring to simplify grip adjustments. To use it, open the jaws to the desired 4–6 inch range, place the clamp on the workpiece, and release the handle so the spring engages and secures the grip for a steady weld.

Key safety features include an extra ground connection to reduce electric shock risk, a durable hardened-steel construction for long-term use, and protective components (tray and isolator) to help manage high current surges and improve electrical safety.

The clamp is built from hardened steel, delivering robust durability and reliable performance across repeated welding sessions and demanding work conditions.

First ensure your power source is set up correctly, then place the clamp on the workpiece within the 4–6 inch grip range. Use the spring-loaded mechanism to secure the contact, connect the grounding lead if required, and proceed with welding. Regularly inspect the jaws and connections for wear and clean as needed.

Compared to higher-current options, this 500A clamp offers a balanced choice with solid durability and safety features. For context, the 600A Welding Clamp (https://fepy.com/product/600a-welding-clamp) provides a higher current rating, while the 1000A Welding Clamp (https://fepy.com/product/1000a-welding-clamp) offers even more headroom for heavy-duty work. The 500A model sits in between, delivering strong performance with detailed safety features at a potentially lower cost.

Yes. The design includes protective features like a tray and isolator intended to support safe operation in environments with higher current surges or outdoor use where lightning activity may be a concern.

This clamp is eligible for returns within the standard return window offered by Fepy for unused items in original condition with proof of purchase. If you’re unhappy with the product, you can initiate a return within that period according to those terms.

Yes, for professional welding tasks that require up to 500A, this clamp offers a strong combination of durability (hardened steel), safety features (grounding, isolation), and user-friendly operation (adjustable grip with an automatic return spring). It provides solid value for most mid- to high-current welding workflows.