The Lincoln Electric Magnum PRO Curve 400 Semi-Automatic MIG Gun (K2952-3) is engineered to meet the rigorous demands of industrial welding environments. Designed for shop production, maintenance, repair, and construction, this 400-amp air-cooled gun delivers consistent performance across MIG, Pulsed MIG, and Flux-Cored processes. With a 20-foot cable length, it provides exceptional reach for large assemblies and structural work, reducing the need to constantly relocate the wire feeder or power source.
At the heart of the Magnum PRO series is the Copper Plus® Contact Tip technology. These tips feature a larger diameter and greater mass compared to standard tips, which significantly improves heat dissipation. This thermal efficiency keeps the tip cooler, preventing wire burn-back and extending the lifespan of the consumable. For high-volume fabrication shops, this translates to fewer tip changes, reduced downtime, and lower overall operating costs. The patent-pending Anti-Seize thread design on both the tip and diffuser further ensures that consumables can be removed easily, even after long periods of high-heat welding.
The K2952-3 is built with industrial-grade construction, utilizing high-quality copper parts to ensure superior electrical contact. It is rated for 400A at 60% duty cycle using CO2 gas, and 400A at 50% duty cycle using mixed gases. The gun is compatible with a wide range of wire diameters, from 0.025 inches up to 5/64 inches, making it a versatile tool for welding everything from thin sheet metal to heavy plate. The simplified expendable parts selection means that 350A and 550A consumables are interchangeable across the Magnum PRO line, streamlining inventory management for your facility.
Beyond raw power, the Magnum PRO Curve 400 is designed for accessibility. The gun tube rotates 360 degrees without tools, allowing the operator to position the nozzle into difficult joints or tight corners without contorting their hand. A built-in gun hanger clip allows the tool to be safely stored near the work area when not in use, preventing damage to the trigger or nozzle.
| Additional Information |
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| Brand:Lincoln Electric |
| Amperage:400 |
| Duty Cycle:60% |
| Packaging Description:pack of 1 |
| Cable Length:20 ft |
| Cooling Method:Air Cooled |
| Wire Size Range:0.025 - 5/64 in |
| Process Type:MIG, Flux-Cored, Pulsed MIG |
| Torch Type:Semi-Automatic |
| Handle Style:Curved |
