Lincoln Electric Flextec® 350X Construction / LN-25X® One Pak® #K4278-3

Multi-Process Welding Package for Construction Applications

The Flextec® 350X Construction / LN-25X® One Pak® (K4278-3) combines a Flextec 350X multi-process power source with an LN-25X portable wire feeder, featuring CrossLinc technology for remote operation in construction welding applications. This package provides a complete solution for wire welding in the field.

Highlights

• CrossLinc Technology: Allows remote voltage control from the wire feeder without additional control cables
• Rugged Design: IP23 rated for harsh environments with trayed and potted PC boards
• Versatile: Supports multiple welding processes including MIG, Flux-Cored, Stick, TIG, and Gouging
• True Voltage Technology (TVT): Compensates for voltage loss in the system
• Easy Ordering: Single part number for the complete package

What's Included

• Flextec® 350X Construction (Tweco®) | K4271-2
• LN-25X® w/CrossLinc® and TVT (No Flowmeter, Tweco®) | K4267-2
• Magnum® PRO Curve™ HDE™ 250 Welding Gun | K4531-2-10-45
• Weld Cable Package - Work & Power Lead 2/0 - 10 ft (3 m) | K1803-2
• 8.5 ft (2.6m) input power cord

Industries Served

• Construction
• Cross Country Pipeline
• General Fabrication
• Heavy Equipment
• Maintenance & Repair
• Offshore
• Structural Welding

Key Features

• Multi-Process Capability: Supports Stick, TIG, MIG, Flux-Cored, and Gouging
• Wide Output Range: 5-425A for various applications
• Portable Design: Ideal for field welding and construction sites
• Durable Wire Feeder: LN-25X designed for harsh environments
• High-Quality Gun: Magnum PRO Curve HDE for improved ergonomics and durability

Benefits of the Flextec® 350X Construction / LN-25X® One Pak®

• Improved Productivity: CrossLinc technology allows remote control without extra cables
• Versatility: Suitable for multiple welding processes and applications
• Durability: Designed to withstand harsh construction environments
• Ease of Use: Simple setup and operation with integrated package
• Consistent Weld Quality: TVT ensures accurate voltage at the arc

This One Pak® system offers a comprehensive solution for construction welding applications, combining power, portability, and advanced technology in a single 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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