Description

Lincoln Flextec 350X / 500X / 650X Multi-Process Welders

The Lincoln Flextec X Series is built for demanding environments where simplicity, reliability and flexibility matter most. Designed for construction sites, fabrication workshops, shipbuilding and heavy industry, the Flextec platform combines premium arc performance with straightforward controls and rugged durability.

Available in three output levels — 350X, 500X and 650X — the Flextec range allows you to choose the right machine for your application while maintaining the same intuitive operator interface and multi-process capability.

These machines are engineered for harsh environments, featuring encapsulated electronics, IP23 rating and robust construction for outdoor and high-temperature operation.

Available Models

🔴 Flextec 350X

• 300A @ 100% duty cycle

• 350A @ 60% duty cycle

• Output range: 5 – 425A

• Ideal for light-to-medium fabrication and site work

🔴 Flextec 500X

• 450A @ 100% duty cycle

• 500A @ 60% duty cycle

• Output range: 5 – 500A

• Suited to structural fabrication and production environments

🔴 Flextec 650X

• 650A @ 100% duty cycle

• 750A @ 60% duty cycle

• Output range: 10 – 815A

• Built for heavy industrial applications and arc gouging

All models operate on 380–575V 3 Phase power.

Processes Supported

• Stick (SMAW)

• DC TIG (GTAW)

• MIG (GMAW)

• Flux-Cored (FCAW-G / FCAW-S)

• Arc Gouging

• SAW (500X & 650X)

Key Features

✔ Simple to Operate

• Streamlined front panel

• Easy process selection

• Digital amperage and voltage displays

✔ Built for Harsh Conditions

• Fully encapsulated electronics

• IP23 rated for outdoor use

• Designed to run cool in high-temperature environments

✔ CrossLinc® Technology

• Remote voltage or current control at the feeder

• No separate control cable required

• Reduces jobsite clutter

• Improves productivity and safety

✔ True Voltage Technology™ (TVT™)

• Compensates for voltage drop across long weld cables

• Delivers the voltage you actually set at the arc

• Ideal for structural steel, shipbuilding and large site work

Optional: LN-25X Suitcase Wire Feeder Package

You can choose to purchase the Flextec as:

• 🔹 Power source only

• 🔹 Power source + LN-25X Suitcase Feeder

The LN-25X is a rugged, portable industrial wire feeder designed for field applications.

LN-25X Highlights

• CrossLinc® communication over weld cables

• True Voltage Technology™ (TVT™)

• 450A @ 60% duty cycle

• Maxtrac® heavy-duty wire drive system

• Tachometer feedback for accurate wire feed speed

• Bright digital meters

• 15–115V DC input

• Suitable for MIG and Flux-Cored welding

When paired with a Flextec X power source, the LN-25X allows full voltage control at the feeder without running additional control cables — perfect for site work where the operator is positioned far from the machine.

Applications

• Structural fabrication

• Construction

• Shipbuilding

• Heavy fabrication

• Industrial maintenance

• Production environments

• Rental fleets

Why Choose the Flextec Range?

✔ Multi-process versatility
✔ Industrial-duty reliability
✔ CrossLinc remote control capability
✔ TVT voltage compensation for long cable runs
✔ Compatible with a wide range of Lincoln wire feeders
✔ Available in multiple output capacities

Technical Summary

Input Power: 380–575V, 3 Phase, 50/60Hz
Protection Rating: IP23