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K2655-1 - Lincoln Magnum PRO 550 MIG Gun, 10ft Cable, 550A

Packaging: 1 Per Ea
$2,183.04/EA $1,405.33/1 Per Ea only $1,405.33/EASave 36%

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OVERVIEW

Built for the Toughest Jobs

When you are under the hood for hours at a time, your equipment needs to be as tough as you are. The Lincoln Magnum PRO 550 is designed specifically for welders who push their gear to the limit. With a 100% duty cycle at 550 amps, this gun doesn't quit, meaning you don't have to stop in the middle of a critical pass to let your torch cool down. Whether you are running heavy flux-cored wire or pushing high-amperage MIG, the Magnum PRO 550 delivers consistent arc performance and reliability that professionals trust.

Comfort Meets Durability

Welding fatigue is real, and Lincoln Electric has addressed this with the Comfort Grip design. The barrel-style handle is lightweight and perfectly balanced, allowing for a natural grip that reduces hand strain during long shifts. The 10-foot cable gives you the reach you need around large weldments without being cumbersome. Additionally, the Secure-Lock gun tube ensures that your nozzle stays exactly where you want it, preventing the annoying rotation that can happen with lesser quality guns when you are maneuvering in tight spaces.

Less Downtime, More Arcs

Nothing is more frustrating than a contact tip seizing up or a diffuser that won't unscrew. The Magnum PRO series features Anti-Seize thread technology on both the tip and diffuser, making consumable changes fast and frustration-free. The Copper Plus contact tips are built thicker to handle more heat, meaning you spend less time changing tips and more time welding. This gun is built to survive drops, drags, and the general abuse of a working shop, making it a solid investment for any serious welder looking to upgrade their setup.

Additional Information
Brand:Lincoln Electric
Amperage:550
Cable Length:10 ft
Wire Size:0.035" - 1/8"
Cooling Method:Air Cooled
Duty Cycle:100%
Process Type:MIG, Pulsed MIG, Flux-Cored
Handle Style:Curved, Barrel-Style
Gas Nozzle Thread:Thread-On
Rated Output (CO2):550A @ 100%
Rated Output (Mixed Gas):375A @ 100%
Packaging Description:1 Per Ea

INCLUDED

  • Contact Tip (Qty. 1)
  • 0.625 in. (15.9 mm) Thread-On Gas Nozzle with 1/8 in. (3.2 mm) recess
  • Thread-On Diffuser

APPLICATIONS

  • Heavy Fabrication
  • Structural Steel Construction
  • Shipbuilding and Offshore
  • Heavy Equipment Manufacturing
  • General Industrial Fabrication
  • Flux-Cored Arc Welding (FCAW)
  • Pulsed MIG Welding

FAQ

The Magnum PRO 550 is rated at 100% duty cycle at 550 Amps using CO2, and 100% duty cycle at 375 Amps using mixed gases.

It is designed to feed wire sizes ranging from 0.035 inches to 1/8 inches (0.9 mm to 3.2 mm).

The K2655-1 is an air-cooled semiautomatic MIG gun.

It uses Lincoln Electric Magnum PRO consumables, including Copper Plus contact tips and thread-on nozzles/diffusers. Consumables are interchangeable with 250, 350, and 450 series guns.

Yes, it typically comes pre-installed with a liner suitable for the standard wire range, though specific liners may be required for aluminum or specific wire sizes.

Yes, the Magnum PRO 550 is rated for MIG, Pulsed MIG, and Flux-Cored welding processes.

The K2655-1 model comes with a 10-foot (3.0 meter) cable.

Copper Plus tips have a larger diameter and more mass than standard tips, which improves heat dissipation and extends the life of the tip.

CATALOGUE & SPEC SHEETS

Spec Sheet