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K449 - Lincoln LN-25 Classic Portable Wire Feeder

Packaging: 1 Per Ea
$12,782.52/EA $7,989.08/1 Per Ea only $7,989.08/EASave 37%

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OVERVIEW

The Legendary Lincoln LN-25 Suitcase Feeder

If you are welding out in the field, on a boom lift, or deep inside a ship's hull, you need equipment that doesn't quit. The Lincoln Electric LN-25 (K449) is the wire feeder that defined the "suitcase" category. Built like a tank, this feeder is designed to be dragged, dropped, and pushed to the limit while delivering smooth wire feeding every time you pull the trigger. It's the go-to choice for ironworkers, pipe welders, and mobile fabricators who need MIG or Flux-Core capability in remote locations.

The beauty of the LN-25 is its simplicity and versatility. Because it is a voltage-sensing feeder, you don't need a special 14-pin control cable running back to your welder. Just hook up your weld lead to the back of the feeder, clip the voltage sensing lead to your work, and you are ready to weld. It works with your shop MIG machine, your engine drive on the truck, or even an old stick welder (CC mode), giving you wire welding productivity wherever you have an arc.

Inside the rugged plastic case, you'll find the heavy-duty MAXTRAC® drive system. This dual-gear drive ensures the wire keeps moving, preventing bird-nesting and slipping. The fully enclosed case keeps your wire clean and dry, which is critical for passing X-ray quality welds in outdoor environments. Whether you are running .045" Dual Shield or solid wire with gas, the LN-25 K449 is ready to work as hard as you do.

Why Welders Trust the LN-25

  • Universal Compatibility: Works with almost any DC power source (CV or CC).
  • Tough Build: The flame-retardant case protects the spool and drive rolls from dirt, rain, and impact.
  • Easy Setup: No control cables—just power and ground.
  • Reliable Feeding: MAXTRAC® drive system handles kinks and drag effortlessly.
  • Safety: Fully enclosed spool prevents arcing against the case or environment.
Additional Information
Brand:Lincoln Electric
Packaging Description:1 Per Ea
Duty Cycle:60%
Process Type:MIG, Flux-Cored, Submerged Arc (limited)
Input Voltage:15-110V DC (Arc Voltage)
Wire Feed Speed Range:50-700 ipm
Wire Diameter Range:.023 - 1/16 in (Solid), .030 - 5/64 in (Cored)
Amperage Range:Up to 300A (60% Duty Cycle)
Weight:35 lbs (approx)
Dimensions:14 in x 7.5 in x 21 in
Cooling Type:Air Cooled

INCLUDED

  • LN-25 Wire Feeder Unit (K449)
  • Internal Gas Solenoid Valve
  • Arc Sensing Lead (15 ft) with Clip
  • Gas Hose
  • Owner's Manual

APPLICATIONS

  • Field Construction and Erection
  • Pipeline Welding
  • Shipbuilding and Offshore
  • Mobile Fabrication and Repair
  • Structural Steel Welding
  • Heavy Equipment Repair

FAQ

No, the LN-25 is a voltage-sensing wire feeder. It draws power directly from the welding arc voltage (via the weld cable), so no separate control cable is required to connect it to the power source.

Yes, the LN-25 has a switch to operate in 'CC' (Constant Current) mode, allowing it to be used with stick welding power sources. However, for the best arc characteristics, a CV (Constant Voltage) power source is recommended for wire welding.

The K449 typically accepts welding guns with a standard Lincoln Electric backend (K126, Magnum PRO, etc.). Adapters may be available for other gun styles like Tweco or Euro-connect.

Yes, the standard K449 model includes an internal gas solenoid valve, making it ready for gas-shielded MIG or flux-cored welding.

The LN-25 accepts standard 10 lb to 44 lb spools (8 inch or 12 inch diameter) depending on the specific spool mounting configuration, but is most commonly used with 12-inch spools inside the case.

The case is made of a high-impact, flame-retardant molded plastic that is non-conductive and corrosion-resistant, designed specifically for harsh field environments.

The LN-25 is rated at 300 Amps at 60% duty cycle, or approximately 200 Amps at 100% duty cycle.

The base K449 model relies on the power source's output. If the power source is 'hot', the wire is electrically hot. However, many configurations or add-on kits include an internal contactor to make the wire 'cold' until the trigger is pulled.