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K2952-3-10-45-550 - Lincoln Magnum PRO Curve 400 MIG Gun, 20ft, 400A Ready-Pak

Packaging: 1 Per Ea
$1,575.00/EA $1,013.91/1 Per Ea only $1,013.91/EASave 36%

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OVERVIEW

Maximize Comfort and Efficiency

Welding is a demanding job, and the tools you use can make the difference between a productive day and an exhausting one. The Lincoln Electric Magnum® PRO Curve™ 400 Welding Gun is designed with the welder in mind, combining premium comfort with industrial power. If you are tackling long welds or working in challenging positions, the 20-foot cable gives you the freedom to move around your workpiece without being tethered too closely to your machine.

Feel the Difference

Say goodbye to hand fatigue. The signature Curve™ handle is sculpted to fit perfectly in your grip, providing a balanced feel that reduces strain on your wrist and forearm. Whether you are welding flat, horizontal, or overhead, the lightweight design helps you maintain steady control for cleaner beads. Plus, the rotating gun tube allows you to adjust the angle of the nozzle 360 degrees, so you can reach into tight spaces comfortably without twisting your arm or the gun cable.

Spend More Time Welding, Less Time Changing Parts

Downtime kills productivity. That is why the Magnum PRO Curve 400 uses Lincoln's exclusive Copper Plus® contact tips. These tips are built tougher and dissipate heat faster than standard tips, meaning they last longer and resist burn-back better. Fewer tip changes mean you stay under the hood longer, getting the job done faster. The thread-on nozzles and diffusers are designed for a secure fit and easy replacement, ensuring your gas coverage stays consistent.

Ready to Work When You Are

This Ready-Pak® comes completely assembled with everything you need to start welding 0.045" wire immediately. No hunting for liners or matching up parts—just connect it to your compatible Lincoln feeder and strike an arc. It is the perfect upgrade for professionals who demand reliability, comfort, and performance from their equipment.

Additional Information
Brand:Lincoln Electric
Amperage:400
Duty Cycle:60%
Cable Length:20 ft
Process Type:MIG, Flux-Cored
Cooling Method:Air Cooled
Wire Diameter Capacity:0.035 in, 0.045 in
Gas Nozzle Type:Thread-On
Contact Tip Series:Copper Plus
Packaging Description:1 Per Ea

INCLUDED

  • Magnum® PRO Curve™ 400 Gun (20 ft)
  • Contact Tip (Qty. 1 - KP2745-045)
  • 5/8 in. (15.9 mm) Thread-On Gas Nozzle with 1/8 in. (3.2 mm) Recess (KP2743-1-62R)
  • Thread-On Diffuser (KP2747-1)
  • Gun Connector (K466-10)
  • Gun Liner (KP44-3545-25)

APPLICATIONS

  • Heavy Fabrication
  • Structural Steel Welding
  • General Manufacturing
  • Maintenance and Repair (MRO)
  • Automotive and Transportation
  • Shipbuilding

FAQ

The Magnum PRO Curve 400 is rated at 400 Amps.

It has a duty cycle of 60% at rated amperage using CO2 gas.

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

Yes, the gun tube can rotate 360 degrees to help access tight spaces and improve operator comfort.

It includes a 0.045" Contact Tip (KP2745-045), a 5/8" Thread-On Gas Nozzle (KP2743-1-62R), a Thread-On Diffuser (KP2747-1), and a Gun Liner (KP44-3545-25).

The included liner is designed for 0.035" to 0.045" wire. The gun can handle other sizes with the appropriate liner and tip changes.

The Magnum PRO Curve 400 is an air-cooled MIG gun.

Lincoln Electric provides a 90-day warranty for this welding gun.