K3136-4 - Lincoln Magnum PRO 550 Dual Schedule MIG Gun 25ft 550A

Maximize Productivity with the Lincoln Magnum PRO 550

The Lincoln Electric K3136-4 Magnum PRO 550 Dual Schedule Welding Gun is the ultimate solution for professional welders seeking power, reach, and control. With a massive 550-amp rating and a 100% duty cycle, this semi-automatic MIG gun is built to withstand the extreme heat and abuse of heavy industrial welding. The 25-foot cable length offers superior flexibility, making it perfect for working on large equipment, trailers, or in shipyards where mobility is essential. This model features Lincoln's innovative Dual Schedule system, putting control at your fingertips. A convenient switch on the gun allows you to instantly change between two pre-set welding schedules, streamlining your workflow and keeping the arc on longer.

Lincoln Electric has integrated their premium Copper Plus® technology into the consumables for this gun. The contact tips are designed with extra mass to draw heat away from the wire interface, preventing burn-back and extending the life of the tip. This means fewer interruptions for tip changes and more time welding. The industrial-grade construction includes high-quality copper and aircraft-grade aluminum components, ensuring superior electrical conductivity and structural integrity. The gun tube is secured with a specialized locking mechanism that resists twisting, ensuring the nozzle stays exactly where you need it.

Despite its heavy-duty capabilities, the Magnum PRO 550 is designed with the welder in mind. The Comfort Grip™ handle is ergonomically shaped to fit naturally in the hand, reducing strain during long welds. The air-cooled design is efficient and robust, requiring less maintenance than water-cooled alternatives while still handling high amperages. Suitable for wire sizes from 0.035" up to 1/8", this gun is ready for everything from precision MIG work to heavy flux-cored structural welding. Upgrade your welding setup with a gun that matches your machine's potential.