Lincoln Electric Flextec 500X/ Activ8X One-Pak - K3612-7

By: Lincoln Electric
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Flextec® 500X/ Activ8X / Magnum Pro Curve 400 One-Pak

Powerful Performance From the Ground Up

Out in the shipyards, construction sites and fabrication shops, it pays to keep it simple.The Flextec® 500X multi-process welder is easy to set up and operate, yet rugged enough to stand up to heavy-duty indoor and outdoor applications.
Basic pulse MIG capability is standard on the Flextec® 500X, including weld modes for carbon steel, stainless steel, aluminum and metalcore electrodes.
The Flextec® 500X welder is also equipped with CrossLinc® technology giving you the flexibility to control the machine from hundreds of feet away without a control cable.


  • Simple interface for ease of use
  • CrossLinc technology eliminates extra cables for simple system setup


  • IP 23 rating means the Flextec® 500X welder will excel in outdoor environments, such as construction sites and shipyards
  • Flextec® 500X welder is Desert Duty® rated for operation in the harshest environments (up to 55C)
  • Durable trayed and potted PC boards for electronics environmental protection


  • Multi-process power source for all your welding needs
  • Compatible with all 42VAC wire feeders for MIG and Flux-Cored welding
  • Arclink® enabled power source provides synergic pulse modes
  • CrossLinc allows for remote control of CV and CC processes without extra cables
  • Optimized stick welding for both cellulosic and low hydrogen electrodes
  • Touch-start Tig for easy, contamination free starts without high frequency


  • Full functionality without control cables
  • Enables remote procedure setting at the feeder to improve weld quality
  • Increases arc time with fewer trips to the power source to adjust settings
  • Improves safety by reducing jobsite clutter


  • System designed for shipyards and other applications where the work is not near the power source.
  • CrossLinc enabled for full control of the power source from hundreds of feet away. 
  • Small, lightweight feeder for use in tight spaces.
  • Magnum PRO Curve gun combines industrial grade construction with a comfortable, ergonomic Curve handle
  • Multi process power source for all your welding needs

What's Included

  • Flextec 500X (K3607-1)
  • Activ8X (K3519-1)
  • Magnum PRO Curve 400 (K2952-2-10-45)
Flextec 500X Spec Sheet Click to Download
Activ8X with CrossLinc Technology Spec Sheet Click to Download
Crosslink Technology Brochure Click to Download
Operator's Manual Click to Download