Lincoln Electric Flextec 500X Multiprocess Welder, Activ8X One-Pak, 500A
The Lincoln Electric Flextec 500X / Activ8X One-Pak pairs the Flextec 500X multiprocess power source with the Activ8X wire feeder and a Magnum PRO Curve 400 welding gun, plus a wire guide and 2-roll drive sized for 0.052 in. cored wire. The 500X supplies up to 500 A with basic pulse MIG and CrossLinc control for shipyards, construction sites and fabrication shops.
The Activ8X feeder has an impact-resistant, flame-retardant case, a MaxTrac wire drive and tachometer feedback that keeps wire feed speed accurate. CrossLinc sends control signals through a standard weld cable, so voltage or current can be set at the arc, even hundreds of feet from the power source, with no control cable, which simplifies setup and reduces cable clutter.
The power source runs MIG, TIG, stick, flux-cored (FCAW) and gouging. Basic pulse MIG is standard, with weld modes for aluminum, stainless steel, carbon steel and metal-core electrodes, and ArcLink-enabled synergic pulse modes are supported. Trayed and potted PC boards, an IP23 rating and Desert Duty certification up to 55°C suit outdoor sites, and the feeder connections allow use with nearly all Lincoln Electric wire feeders.
Highlights
Flextec 500X power source with Activ8X feeder and Magnum PRO Curve 400 gun
Up to 500 A output for demanding industrial work
Activ8X feeder: impact-resistant case, MaxTrac wire drive, tachometer feedback
Wire guide and 2-roll drive sized for 0.052 in. cored wire included
CrossLinc voltage or current control at the arc, with no control cable
IP23 rated; Desert Duty certification; usable with nearly all Lincoln Electric wire feeders
Specifications
Brand | Lincoln Electric |
Manufacturer part number | K3612-7 |
Power source | Flextec 500X |
Wire feeder | Activ8X |
Gun | Magnum PRO Curve 400 |
Drive roll and guide | 2-roll drive and wire guide for 0.052 in. cored wire |
Wire drive | MaxTrac, with tachometer feedback |
Maximum output | Up to 500 A |
Processes | MIG, TIG, stick, gouging, FCAW; basic pulse MIG |
Pulse MIG modes | Carbon steel, stainless steel, aluminum, metal-core electrodes |
Feeder compatibility | Nearly all Lincoln Electric wire feeders; ArcLink synergic pulse modes |
Remote control | CrossLinc through a standard weld cable |
Circuit boards | Trayed and potted |
Enclosure rating | IP23 |
Desert Duty | Up to 131°F (55°C) |
What's in the box
Flextec 500X power source
Activ8X wire feeder
Magnum PRO Curve 400 welding gun
2-roll drive and wire guide for 0.052 in. cored wire
Good to know
Check the input power (voltage, phase and amperage) against your supply before you order.

