K3055-4 - Lincoln Magnum PRO Curve 400 MIG Gun, Short Neck, 25ft Cable

Lincoln K3055-4 Magnum PRO Curve 400 Welding Gun - 25 ft

Maximize your welding productivity with the Lincoln Electric K3055-4 Magnum PRO Curve 400, a heavy-duty semi-automatic MIG gun engineered for reliability and performance. This model is equipped with a 25-foot cable assembly and a Short Neck design, optimized for general fabrication, structural steel, and heavy equipment manufacturing. It supports a wide wire diameter range from 0.025" to 5/64" (0.6 - 2.0 mm), making it versatile for various material thicknesses and welding processes including MIG, Pulsed MIG, and Flux-Cored welding.

Technical Performance & Duty Cycle:
The K3055-4 is rated for 400 Amps at 60% duty cycle with CO2 shielding gas, and 400 Amps at 50% duty cycle with mixed gases. This high amperage capability allows for deep penetration welds and high deposition rates without overheating the torch. The air-cooled design utilizes high-quality copper components to ensure efficient current transfer and heat management.

Magnum PRO Consumable System:
This gun is designed to lower your operating costs through the Magnum PRO expendable parts system. It features Copper Plus® Contact Tips, which provide superior heat dissipation compared to standard tips, extending tip life and maintaining a stable arc for longer periods. The simplified expendable parts selection means that nozzles, diffusers, and insulators are compatible across the entire Magnum PRO line (350A - 550A), reducing the variety of spare parts you need to stock.

Ergonomics and Durability:
The "Curve" in the name refers to the signature handle design that promotes a comfortable grip and reduces wrist strain. The gun also features a rotating tube that can be adjusted without tools, allowing the welder to access joints in awkward positions comfortably. The cable is protected by a durable outer jacket resistant to cuts and abrasion, ensuring the K3055-4 stands up to the toughest shop conditions. Included with the gun are a standard 350A contact tip, gas nozzle, and diffuser, so it is ready to weld right out of the box.