K3136-3 - Lincoln Magnum PRO 550 Dual Procedure MIG Gun 20ft

High-Performance Industrial MIG Welding

The Lincoln Electric Magnum® PRO 550 Dual Schedule Welding Gun (K3136-3) is engineered for the most demanding industrial environments. Designed for high-amperage, high-duty-cycle applications, this semi-automatic MIG gun delivers a robust 550 amps at 100% duty cycle when using CO2 shielding gas. For mixed gas applications, it maintains a substantial 375 amps at 100% duty cycle. This level of performance ensures that professional welders can tackle heavy fabrication, shipbuilding, and structural steel projects without fear of gun overheating or failure.

Dual Schedule Control for Maximum Efficiency

One of the standout features of the K3136-3 is its Dual Schedule capability. This integrated functionality allows the operator to switch between two distinct welding procedures on the fly using the gun trigger. This is particularly advantageous in complex assemblies where different joint configurations or positions require varying voltage and wire feed speeds. By eliminating the need to walk back to the power source to adjust settings, the Magnum PRO 550 significantly increases arc-on time and overall productivity.

Durability and Consumable Life

Lincoln Electric has equipped the Magnum PRO series with Copper Plus® Contact Tips. These tips feature a larger diameter and greater mass compared to standard tips, providing superior heat dissipation. This design improvement directly translates to extended tip life and reduced consumable costs. Additionally, the patent-pending Anti-Seize™ tip and diffuser thread design prevents parts from fusing together, making maintenance quick and frustration-free. The gun also features a Secure-Lock™ tube to resist rotational slipping, ensuring the torch angle remains consistent throughout the weld.

Comfort and Ergonomics

Despite its heavy-duty rating, the Magnum PRO 550 is designed with operator comfort in mind. The Comfort Grip™ handle utilizes a barrel style that is lightweight and balanced, reducing hand fatigue during long welding shifts. The 20-foot cable provides ample reach for working on large structures, while the industrial-grade construction ensures the gun withstands the rough handling typical of shop floors and construction sites.