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LN25 ProExtreme Wire Feeder

LN25 ProExtreme Wire Feeder Rental Unit

Top Features

  • Portable Industrial Feeder
  • Digital Meters
  • Includes Gas Solenoid, Flow Meters
  • Extreme-Duty Specifications
  • Processes: MIG (GMAW), Pulsed MIG, Wirefeeders, Flux-Cored (FCAW)

Built upon the tradition and success of the LN25, the new LN25 ProExtreme is designed to be simple, reliable and easy to service. The LN25 ProExtreme is ideal for field construction and fabrication, shipyards, and rental companies.

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Product Details


Rated Current: 325 A at 100% duty cycle
450 A at 60% duty cycle
Wire Feed Speed: 50 - 700 IPM
Input Voltage: 15 - 110 VDC
Wire Diameters: .023 - 1/16" solid wire
.030 - 5/64" cored wire
Weight: 37 lb (16 kg)
Dimensions: H: 15" (381 mm) W: 8" (203 mm) L: 22" (558.8 mm)



Pulsed MIG


Flux-Cored (FCAW)

Additional Features

The MAXTRAC® wire drive enhances performance, while the replacement case, and many other upgrade options that can be installed in less than five minutes aid in the serviceability. The LN25 ProExtreme is available in standard and extra torque models. All models include a gas solenoid and flow meter to run both flux-cored and MIG wires. The extra torque model features additional torque gearing for reliable feeding of large diameter flux-cored wires.


  • 2-Step/trigger interlock provides comfort for long welds
  • Analog Voltmeter with polarity indicator LED automatically adjusts to welding polarity
  • Non-linear wire feed speed gives single range control, yet maintains sensitivity with low wire feed speed
  • Sturdier and rugged spindle design with an incorporated brake
  • Lightweight, impact and flame resistant polycarbonate case design keeps the internal components protected
  • Potted and trayed PC board protects against moisture and corrosion
  • Reel locking mechanism eliminates spindle cross threading
  • Case can be replaced in less than 5 minutes – eliminates downtime
  • Timer kit available to prevent the electrode from sticking in the crater when using high wire feed speeds

Options, Accessories and Related Equipment

Related Equipment
LN25 Wire Feeder
LN25X Wire Feeder With CrossLinc Technology
Welding Safety Equipment

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LN25 ProExtreme Wire Feeder

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Airgas, an Air Liquide company, is the nation's leading single-source supplier of gases, welding and safety products. Known locally nationwide, our distribution network serves more than one million customers of all sizes with a broad offering of top-quality products and unmatched expertise.