Advanced Multi-Process Welding System

The Flextec® 500X/ Activ8X® One-Pak® (K3612-7) is a comprehensive welding solution that combines the powerful Flextec® 500X multi-process welder with the Activ8X wire feeder and Magnum Pro Curve 400 gun. This system is designed for heavy-duty applications in shipyards, construction sites, and fabrication shops.

Highlights

Multi-Process Capability: Supports Stick, TIG, MIG, Flux-Cored, and Gouging
CrossLinc® Technology: Enables remote control without extra cables
Rugged Design: IP23 rated for outdoor use, Desert Duty® rated for extreme environments
Basic Pulse MIG: Includes weld modes for carbon steel, stainless steel, aluminum, and metalcore
Versatile Compatibility: Works with 42VAC wire feeders for MIG and Flux-Cored welding

Industries

Shipbuilding
Construction
Heavy Fabrication
Cross Country Pipeline
Structural Fabrication

What’s Included

Flextec® 500X (K3607-1)
Activ8X (K3519-1)
Magnum PRO Curve 400 (K2952-2-10-45)

Benefits of the Flextec® 500X/ Activ8X® One-Pak®

Improved Productivity: CrossLinc technology reduces trips to the power source
Enhanced Safety: Fewer cables reduce jobsite clutter
Versatility: Suitable for multiple welding processes and environments
Ease of Use: Simple interface and setup for efficient operation
Durability: Built to withstand harsh outdoor conditions

This Flextec® 500X/ Activ8X® One-Pak® offers a powerful, flexible, and user-friendly solution for advanced welding applications, combining the benefits of CrossLinc technology with multi-process capabilities in a ready-to-use package.

Fast, Free Shipping & Easy Returns

At Welders Supply, we prioritize fast, reliable shipping and hassle-free returns. If you’re not fully satisfied with your purchase, you can return it within 14 days for an exchange, credit or refund. Please ensure all products are returned freight paid, in their original packaging, with all materials, manuals and accessories included. A restocking fee of up to 25% may apply based on product condition. Certain restrictions apply to custom orders, PPE and demo items. Call our customer service team at (844) 682-0205 for assistance.

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Specifications - Flextec® 500X/ Activ8X® One-Pak® - K3612-7
Brand	Lincoln Electric
Model	Flextec® 500X/ Activ8X® One-Pak®
SKU	K3612-7
Machines Processes	Stick (SMAW) Gouging (CAC-A) Flux-Cored (FCAW) TIG (GTAW) MIG (GMAW) Flux-Cored Self-Shielded (FCAW-S) Flux-Cored Gas-Shielded (FCAW-G)
Max Rating	500A
Output Range by Mode	5-500A
Machines Communication Technology	CrossLinc
Wire Feeder Supply Voltage	42VAC
Amphenol Pins (type of connector)	5 14 12
Work Lead Connector Type	Lug
Input Voltage	460,380/400/415,575
Input Current	39/31/31,33/27/27
Input Phase	3
Input Power	380/460/575/3/50/60
Rated Output	500A/40V/60%,450A/38V/100%
Warranty	3 Years