K598-11 - Lincoln Magnum 550 MIG Gun, 550A, 15ft, 5/64-3/32 Wire Capacity

Industrial-Grade Heavy Duty MIG Welding Gun

The Lincoln Electric Magnum 550 Gun (K598-11) is a powerhouse solution designed for the most demanding semiautomatic welding applications. Engineered for high-amperage performance, this air-cooled gun is rated at 550 amps at a 60% duty cycle using CO2 gas, making it an exceptional choice for heavy fabrication, structural steel, and industrial manufacturing environments. The K598-11 model comes equipped with a 15-foot cable assembly and is specifically configured with a liner to accommodate large diameter wires ranging from 5/64 inch to 3/32 inch (2.0 mm to 2.4 mm), ideal for high-deposition MIG and gas-shielded flux-cored welding processes.

Durability lies at the core of the Magnum 550's design. The gun tube is armored with an electrically insulated metal jacket that not only optimizes fine wire welding performance but also reflects radiant heat, protecting the internal components from the intense thermal environment of high-amperage arcs. The cable itself is encased in an abrasion-resistant, extruded rubber jacket that provides superior strength and resistance to cuts, burns, and wear common in harsh shop floor conditions. A rugged strain relief system further enhances longevity by reducing acute cable angles, ensuring smooth wire feeding and protecting the internal liner from kinking.

Operator comfort and control are paramount in the Magnum series. This gun features Lincoln's classic curved handle, which is lightweight and balanced to provide a sure, confident grip that minimizes hand fatigue during long welding shifts. The one-piece modular trigger assembly is molded from high-heat-resistant material to withstand spatter and utilizes high-quality silver contacts to ensure clean, reliable electrical signals for every arc start. Additionally, the rotatable 60-degree gooseneck allows welders to adjust the gun angle, facilitating high-quality welds even in tight spaces or awkward joint locations. The Magnum 550 is a testament to Lincoln Electric's commitment to quality, offering a robust tool that professionals can rely on for consistent, high-performance welding.