The Lincoln Flextec 350X Construction model represents the ultimate portable welding solution for demanding field applications, combining exceptional multi-process capabilities with rugged durability in a compact, jobsite-ready package. Engineered specifically for construction environments, this versatile power source delivers up to 350 amps of welding output for stick, TIG, and carbon arc gouging applications, making it the ideal solution for structural steel erection, pipeline construction, and heavy fabrication where mobility and performance are essential requirements. The convenient Twist Mate/Dinse style output connectors allow for rapid setup and teardown on construction sites, significantly reducing downtime between welding operations and enhancing overall productivity in time-sensitive project environments.
Compare With K3441-1 - Full Three Year Factory Warranty
Revolutionary CrossLinc Technology transforms jobsite efficiency by eliminating the need for control cables between the power source and wire feeder, allowing welders to make precise parameter adjustments directly at the point of welding—even hundreds of feet from the power source. This groundbreaking capability dramatically reduces setup time, minimizes workplace trip hazards, and substantially increases productive arc time by eliminating repeated trips to the power source for parameter adjustments. When paired with the LN-25X CrossLinc portable feeder, the system creates the perfect field wire welding solution, delivering exceptional MIG and flux-cored performance without the complexity and maintenance requirements of traditional control cable systems.
The Flextec 350X Construction model features a streamlined operator interface designed specifically for field applications, with clearly labeled controls that simplify setup and operation even in challenging environmental conditions. This intuitive design minimizes training requirements and reduces the potential for setup errors in fast-paced construction environments, allowing welders to focus on productivity rather than equipment configuration. The simplified control panel provides quick access to essential welding parameters while eliminating unnecessary complexity, creating a user-friendly experience that maximizes efficiency and consistency across diverse welding operations and operator skill levels.
Engineered for exceptional reliability in harsh construction environments, the Flextec 350X incorporates advanced thermal management systems with components designed to run cool even in high-temperature conditions, significantly extending service life and reducing maintenance requirements. The robust construction withstands the rigors of daily transportation and operation in challenging field conditions, from dusty construction sites to offshore platforms and pipeline right-of-ways. This durable design approach ensures consistent performance and reliability in applications where equipment failure can result in costly project delays and production bottlenecks.
The Flextec 350X Construction model's lightweight design, weighing just 77 pounds (34.9 kg), enhances portability without sacrificing performance or durability, making it the ideal solution for mobile welding operations where equipment must be frequently relocated. Despite its compact footprint, this powerful system delivers industrial-grade welding capabilities across multiple processes, supporting both CrossLinc-enabled feeders and conventional across-the-arc wire feeders for maximum application flexibility. With its comprehensive three-year warranty coverage, the Flextec 350X Construction model represents Lincoln Electric's commitment to quality, reliability, and technological innovation in field welding equipment, providing professional welders with the perfect combination of portability, performance, and process versatility for demanding construction applications.
Features
- CrossLinc technology Full functionality without control cables
- Recommended for use with an LN-25X CrossLinc portable feeder
- Simple Streamlined operator panel minimizes setup time
- Reliable Components designed to run cool for long life in high temperature environments
- Twist Mate / Dinse welding output connections
- Supports CrossLinc and Across-the-Arc wire feeders
| Dimensions (H x W x D) | 17 in x 13 in x 23 in (432 mm x 330 mm x 584 mm) |
| Net Weight | 77 lbs (34.9 kg) |
| Machines Processes | Stick (SMAW) Flux-Cored (FCAW) TIG (GTAW) MIG (GMAW) Flux-Cored Self-Shielded (FCAW-S) Flux-Cored Gas-Shielded (FCAW-G) |
| Input Voltage | 380-575/3/50/60 |
| Input Current | 21/23/23,25/28/22 |
| Input Power | 380/460/575/3/50/60 |
| Output Range | 5-425A |
| Output Range by Mode | 5-425A |
| Machines Communication Technology | CrossLinc |
| Amphenol Pins (type of connector) | 12 |
| Work Lead Connector Type | Dinse |
| Typical Application | Construction Cross Country Pipeline Construction & Field Erection Heavy Fabrication Maintenance & Repair Offshore Pipeline & Offshore Power Generation Process Piping Shipbuilding Structural Fabrication Structural Welding |
| Warranty | 3 Years |
The Flextec 350X Construction (Twist Mate) is a multi-process industrial power source supporting MIG (GMAW), flux-core (FCAW), Stick (SMAW), DC TIG (GTAW), and advanced pulsed MIG processes. The Power Wave and Flextec series are designed for both manual and automated welding applications. Refer to the spec sheet for the full process list for your specific model.
Input power requirements vary by model. Smaller multi-process units may accept single-phase 208/230V or multi-voltage input. Industrial Power Wave and Flextec models typically require three-phase 208–575V input. Check the spec sheet and machine nameplate for exact input power specifications before installation.
Yes — the Lincoln Electric Power Wave and Flextec series are designed for both manual and automated welding applications. They feature ArcLink® digital communication for integration with Lincoln Electric wire feeders, robots, and automated systems. Contact WeldingMart or Lincoln Electric for automation integration assistance.
Lincoln Electric multi-process power sources in this class are compatible with Lincoln's industrial wire feeder family via ArcLink digital connection. Compatible feeders include the LF-72, LF-74, MAXsa, and other Lincoln wire feeders. Refer to the owner's manual for a complete compatibility list.
Output range and duty cycle are listed in the spec sheet. Industrial Lincoln Electric power sources in this class are typically rated for 100% duty cycle at maximum output, making them suitable for continuous production welding environments.
Yes — this is a factory demo or low-hour unit sourced directly from Lincoln Electric. Units are mechanically tested before sale and may show light cosmetic wear. Contact WeldingMart for information on remaining manufacturer warranty for your specific unit number.