K115-1 - Lincoln Magnum Classic K115-1 Innershield Gun 450A 10ft

Lincoln Electric Magnum Classic K115-1 Innershield Gun

The Lincoln Electric Magnum Classic K115-1 is the industry-standard welding gun for heavy-duty Flux-Cored Self-Shielded (FCAW-S) applications. Known for its rugged durability and reliability, this gun is engineered to withstand the harsh environments typical of structural steel fabrication, bridge construction, and heavy equipment repair. Rated at 450 amps at a 60% duty cycle, the K115-1 provides the power necessary for depositing large amounts of weld metal efficiently using Innershield wires.

This model features a 10-foot cable encased in a reinforced rubber jacket, which adds significant strength and longevity, protecting the internal copper stranding from cuts, abrasion, and heat on the job site. The gun comes standard with an 82-degree gun tube, offering a comfortable welding angle for most flat and horizontal applications. For welders who require versatility, the design supports alternate gun tubes to reach welds with limited accessibility. The heavy-duty trigger switch is designed for positive electrical contact, ensuring consistent arc initiation and reducing the likelihood of switch failure during critical welds.

The K115-1 is designed to feed large diameter wires ranging from 3/32 inch to .120 inch (2.4 to 3.0 mm). Out of the box, it includes contact tips and insulated guides ready for 7/64 inch and .120 inch wire, making it immediately deployable for heavy structural work. Meeting NEMA specification EW3, this air-cooled gun balances weight and performance, remaining maneuverable enough for field erection while being tough enough for the shop floor. Whether you are welding thick plate in a shipyard or erecting steel beams, the Lincoln Magnum Classic K115-1 delivers the consistent performance professionals demand.