Any Input Voltage 200-600V
CrossLinc w/ TVT
Multi-Process MIG/TIG/Stick
CAC (Carbon Arc Cutting)
Lincoln Electric 3-Year Warranty
Advanced Portable Welding System for Pipeline Applications
The Lincoln Electric Flextec 350X PowerConnect / Activ8X Pipe One-Pak (K5802-1) is a comprehensive multi-process welding system designed for field welding STT root passes on pipe. This package combines the versatile Flextec 350X PowerConnect power source with the Activ8X Pipe wire feeder, optimized for pipeline welding applications.
NEW From Previous Version:
- Software Update Capabilities: New models are capable of software updates via USB.
- Enhanced Crosslinc® Control: New models now allow remote weld mode changes via Crosslinc, and automatic weld mode selection (Process Select Assist) based on connected Crosslinc Accessory.
Processes
- Stick
- TIG
- Pulsed & CV MIG
- Arc gouging
Highlights
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Multi-Process Capability:
Supports STT, MIG, Flux-Cored, Stick, and TIG welding
-
PowerConnect Technology:
Compatible with 200-600V, 1 or 3-phase input power
-
CrossLinc® Technology:
Allows remote control without extra cables
-
Rugged Design:
Built to withstand harsh outdoor conditions
-
Portable Package:
Ideal for field welding application
What's Included
- Flextec 350X PowerConnect / Activ8X Pipe One-Pak
- Flextec® 350X PowerConnect® (Tweco) | K4273-2
- Work Lead 2/0, Tweco to GC500, 15ft. | K4835-2/0-15
- Drive Roll Kit Combination .035 in / .045 in Solid Wire | KP1696-1
- Activ8X® Pipe™ (Tweco®) | K4717-1
- Magnum® PRO Curve™ HDE™ 250 Welding Guns | K4531-2-10-45
- Copper Plus® Contact Tip - 350A, Tapered, .035 in (0.9 mm) - 10/pack | KP2744-035T
- Magnum® PRO Nozzle - 350A, Thread-on, Flush, 3/8 in (9.5 mm) ID | KP2742-1-38F
Industries Served
- Pipeline Construction
- Cross Country Pipeline
- LPG and LNG Storage Vessels
- Power Generation
- Process Piping
Key Features
- Waveform Controlled STT-Field Arc: For full penetration, full fusion, open root passes on pipe
- No Control Cables or Sense Lead Needed: Simplified setup
- No sense lead needed
- Portable, compact package
- CV DC+ only for solid wire and metal core wire
- Simple setup
- 8" Diameter Spool Capacity: Accommodates larger wire spools
- 4 Memory Locations: Easy recall of welding parameters
- Generator Compatible: Fully functional with generator power
- Additional weld and work power leads required

Benefits of the Flextec 350X PowerConnect / Activ8X Pipe One-Pak
- Enhanced Portability: Compact design ideal for field welding
- Improved Weld Quality: Optimized processes for pipeline applications
- Versatile Power Input: Compatible with various power sources, including generators
- Durability: Engineered to withstand extreme outdoor conditions
- Simplified Operation: Easy setup and user-friendly interface
This Flextec 350X PowerConnect / Activ8X Pipe One-Pak offers a powerful, flexible, and portable solution for demanding pipeline welding applications, combining advanced technology with a rugged design to ensure optimal performance in challenging field environments.
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 1-844-682-0205.
This product replaces these legacy models: