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K3055-3 - Lincoln Magnum PRO Curve 400 MIG Gun, 20ft Cable, Short Neck

Packaging: 1 Per Ea
$1,493.90/EA $961.70/1 Per Ea only $961.70/EASave 36%

Usually ships within 3-5 business days

OVERVIEW

Maximize Comfort and Productivity

Welding is a physically demanding job, and the equipment you use makes all the difference in how you feel at the end of the day. The Lincoln Electric Magnum PRO Curve 400 (K3055-3) is built with the welder in mind, combining a classic curved handle grip with modern technology to reduce fatigue and keep you welding longer. The 20-foot cable gives you the freedom to move around large projects without feeling tethered, while the lightweight handle design ensures that the gun feels like a natural extension of your arm rather than a heavy tool.

Stay Cool Under Pressure

One of the biggest frustrations in MIG welding is constant contact tip burnback and seizing. Lincoln's Magnum PRO guns utilize Copper Plus contact tips, which are beefier and dissipate heat much faster than standard tips. This means the tip stays cooler, the wire feeds smoother, and you spend less time swapping out parts and more time laying beads. The Anti-Seize threads on the diffuser and tip prevent those frustrating moments where consumables get stuck in the gun, making maintenance quick and painless.

Versatile and Tough

Whether you are running solid wire for clean MIG welds or flux-cored wire for deep penetration, the Magnum PRO Curve 400 handles it all. The rotating gun tube allows you to adjust the angle of the neck to get into awkward corners without twisting your wrist into uncomfortable positions. The gun includes a hanger clip, so you can keep your workspace organized and your torch off the floor when not in use. With a 400-amp rating, this gun is ready for serious fabrication work, delivering the reliability you expect from Lincoln Electric.

Ready to Weld

This package comes ready to go with a standard contact tip, gas nozzle, and diffuser included. The 20-foot lead is perfect for shops where the feeder can't always be right next to the work piece. If you are looking for a MIG gun that balances heavy-duty performance with all-day comfort, the K3055-3 is the upgrade your welding rig needs.

Additional Information
Amperage:400
Duty Cycle:60%
Brand:Lincoln Electric
Packaging Description:pack of 1
Cable Length:20 ft
Wire Size Range:0.025 in, 0.030 in, 0.035 in, 0.045 in, 0.052 in, 1/16 in, 5/64 in
Cooling Method:Air Cooled
Torch Type:MIG Gun
Process Type:MIG, Flux-Cored, Pulsed MIG
Amperage Rating:400 A
Handle Style:Curve
Neck Type:Short Neck

INCLUDED

  • Magnum PRO Curve 400 Welding Gun (20 ft)
  • Contact Tip (KP2744-045)
  • 0.625 in. (15.9 mm) Thread-On Gas Nozzle with 1/8 in. (3.2 mm) recess (KP2742-1-62R)
  • Thread-On Diffuser (KP2746-1)
  • Gun Connector

APPLICATIONS

  • Heavy Equipment Manufacturing
  • Structural Steel Fabrication
  • General Maintenance and Repair
  • Automotive Production
  • Construction Sites
  • Shipbuilding

FAQ

The Magnum PRO Curve 400 is rated at 400 Amps at 60% duty cycle with CO2 gas.

This model comes with a 20-foot (6.1 meter) cable.

It is designed for wire sizes ranging from 0.025 inches to 5/64 inches (0.6 mm to 2.0 mm).

Yes, the 350A and 550A consumables are interchangeable across the Magnum PRO gun models.

Yes, the gun features a rotating gun tube to help fit into tight spaces and reduce operator fatigue.

The K3055-3 is an air-cooled semi-automatic MIG gun.

Copper Plus tips have a larger diameter and mass, which improves heat dissipation and increases tip life.

Yes, it typically ships with a standard liner installed, but specific liners may be required for different wire sizes or materials like aluminum.

CATALOGUE & SPEC SHEETS

Spec Sheet