K598-7 - Lincoln Magnum 550 Semiautomatic Welding Gun 15ft

Heavy-Duty Industrial Performance

The Lincoln Electric Magnum 550 MIG Gun (K598-7) is a powerhouse tool designed for serious industrial fabrication. Built to withstand the rigors of high-amperage welding, this gun delivers a substantial 550 amps at a 60% duty cycle using CO2 gas. It is specifically engineered for welders who need to run larger diameter wires, ranging from .052 inches to 1/16 inches, making it an excellent choice for structural steel, heavy equipment manufacturing, and other demanding metalworking tasks.

Comfort and durability are at the forefront of the Magnum 550's design. The classic curved handle is lightweight and balanced, providing a sure grip that significantly reduces operator fatigue during long welding sessions. The gun features an abrasion-resistant extruded rubber jacket that adds exceptional strength to the cable, protecting it from the wear and tear of the shop floor. Additionally, the one-piece modular trigger assembly is molded from high-heat-resistant material, ensuring it stands up to spatter and intense heat for a long service life.

Versatility is key in professional environments, and the Magnum 550 delivers with a rotatable gooseneck that helps you achieve high-quality welds even in awkward or tight joint locations. The gun tube itself is armored with an electrically insulated metal jacket, which not only reflects radiant heat but also optimizes fine wire welding performance. Whether you are running standard MIG or gas-shielded flux-cored wires, this gun provides the reliability and consistency Lincoln Electric is known for.

Reliable Feeding and Maintenance

Feedability is critical for productivity, and the Magnum 550 addresses this with a rugged strain relief system. This feature reduces acute gun cable angles, protecting your cable liner and ensuring smooth wire delivery. The internal extruded tube offers excellent gas sealing integrity, preventing leaks and ensuring proper shielding of the weld pool. Maintenance is straightforward, as the expendable parts are compatible with standard industry designs, making replacements easy to source and install.