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Lincoln Magnum SG Spool Gun

Lincoln Magnum SG Spool Gun

Top Features

  • Large Easy-Grip Handle
  • Sizable Trigger is Easy to Use with Gloved Hands
  • Remote Wire Speed Control Reduces Trips to the Welding Power Source
  • Processes: Aluminum MIG Welding

The Magnum SG is a lightweight, well balanced semiautomatic spool gun designed to provide easy and reliable aluminum wire feeding with a variety of CV power sources and engine-driven welders. Rated 250 amps @ 60%, the Magnum® SG features a 25 ft (7.5 m) gun cable and integrated wire feed speed control in the handle to reduce the need for walking back to the power source.

Product Details


Part Number: K487-25
Duty Cycle At Rated Amperage: 60%
Rated Amperage: 250 A
Gun Type: Spool Gun
Cable Length: 25 ft.
Wire Diameter: .023-3/64 in. (0.6-1.2 mm)
Cooling: Air cooled
Net Weight: 4.99 kg


Aluminum MIG Welding

Additional Features

About the Magnum SG K487-25 Spool Gun

  • Clear spool gun body cover makes it easy to check the wire drive path
  • Gas nozzle is built to stand up to rugged use
  • Clear electrode wire spool cover allows you to check remaining wire at a glance
  • Generous 25 ft. (7.5 m) gun cable assembly allows you to work a significant distance from your welding power source
  • Reliable feeding of aluminum wire

Superior Arc Performance:

  • Eliminates many of the wire feeding issues associated with feeding soft aluminum wire electrode through a conventional push wire feeding system.
  • Capable of feeding .023-3/64" (0.6-1.2 mm) diameter wire electrode at wire feed speeds of 50-650 ipm (16.5 m/min)

Outstanding Features:

  • Generous 25 ft. (7.5 m) gun cable
  • Handles 1 lb. (.45 kg) 4" (102 mm) diameter wire electrode spool
  • Integrated wire feed speed control in the handle reduces trips to the power source
  • Quick release drive system makes it easy to load wire spools
  • Textured see-through spool and body covers enable the user to easily monitor wire supply and wire feed path
  • Easily converted to steel or stainless wire welding (.025" / 0.6 mm diameter) with the optional knurled drive roll and grooved idler roll

Control Module Features:

  • Wire feed speed control
  • Built-in gas solenoid and gas preflow control
  • Mode switch matches spool gun operation to contactor circuit type in your power source

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Options, Accessories and Related Equipment

Lincoln Magnum SG Spool Gun

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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.