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K3612-3 - Flextec 500X / Flex Feed 74HT Heavy Duty Welding System

Packaging: 1 Per Ea
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OVERVIEW

Industrial-Grade Multi-Process Power

The Lincoln Electric Flextec 500X / Flex Feed 74HT One-Pak (K3612-3) is a premier welding system engineered for the most demanding industrial environments. Designed to serve shipyards, construction sites, and heavy fabrication shops, this package combines the raw power of the Flextec 500X inverter with the precision and durability of the Flex Feed 74HT wire feeder. With a rated output of 500 amps at 60% duty cycle, this machine effortlessly handles thick materials and continuous operation requirements.

CrossLinc Technology Advantage

A standout feature of this system is the integrated CrossLinc Technology. This innovation allows for full voltage control at the feeder without the need for an additional control cable. By communicating voltage settings over the standard weld cable, operators can adjust parameters remotely at the arc, reducing trips back to the power source. This not only increases arc-on time and productivity but also enhances jobsite safety by eliminating unnecessary cable clutter that can lead to trips and falls.

Rugged Reliability for Harsh Conditions

Built to endure, the Flextec 500X boasts an IP23 rating and is Desert Duty rated, ensuring reliable performance in extreme heat, dust, and humidity. The internal components, including PC boards, are trayed and potted to provide superior protection against environmental contaminants. The accompanying Flex Feed 74HT is a high-torque, 4-roll feeder designed to push large diameter wires through long gun cables, making it ideal for structural steel and heavy equipment repair.

Versatile Process Capabilities

This One-Pak is a true multi-process solution, supporting MIG, Stick, TIG, Flux-Cored, and Carbon Arc Gouging. It features optimized stick welding modes for both cellulosic and low-hydrogen electrodes and offers Touch-Start TIG for clean, high-frequency-free arc initiation. Basic Pulse MIG capabilities are standard, providing improved arc performance on carbon steel, stainless steel, and aluminum. The system's flexibility is further enhanced by its broad input voltage compatibility (380/460/575V 3-Phase), ensuring it can be deployed across various facility power configurations.

Additional Information
Amperage:500
Brand:Lincoln Electric
Voltage:200-600 V
Weld Process:Multi-Process
Duty Cycle:60%
Packaging Description:1 of 1
Input Phase:3-Phase
Wire Feeder Model:Flex Feed 74HT
Protection Class:IP23
Technology:CrossLinc, Inverter
Gouging Capability:Carbon Arc Gouging
Max Wire Diameter (Solid):3/32 in (2.4 mm)
Max Wire Diameter (Cored):0.120 in (3 mm)
Dimensions:18.80 x 14.00 x 27.50 Inches
Weight:132.7 kg

INCLUDED

  • Flextec 500X Multi-Process Welder
  • Flex Feed 74HT Wire Feeder
  • Magnum PRO Curve 400 Gun
  • Work Lead and Clamp
  • Electrode Holder
  • Regulator and Hose
  • Drive Rolls
  • Cables and Connectors

APPLICATIONS

  • Shipbuilding and Offshore Fabrication
  • Heavy Construction and Structural Steel
  • General Fabrication and Manufacturing
  • Rental Fleets
  • Power Generation Plants
  • Pipeline Construction

FAQ

The One-Pak includes the Flextec 500X power source, Flex Feed 74HT wire feeder, Magnum PRO Curve 400 gun, work lead, electrode holder, regulator, and necessary cables.

Yes, the Flextec 500X features CrossLinc technology, allowing voltage control at the feeder without an additional control cable.

The machine operates on 3-phase power with input voltages of 380V, 460V, or 575V at 50/60 Hz.

Yes, the Flextec 500X is capable of carbon arc gouging with carbons up to 3/8 inch (9.5 mm) in diameter.

The machine is rated at 500 Amps at 40 Volts with a 60% duty cycle, and 450 Amps at 38 Volts with a 100% duty cycle.

Yes, the Flex Feed 74HT is a high-torque, 4-roll feeder specifically designed to handle flux-cored and other heavy-duty wires effectively.

The Flextec 500X has an IP23 rating and is Desert Duty rated, making it suitable for outdoor and harsh industrial environments.

Yes, the Flextec 500X comes standard with Basic Pulse MIG capabilities for carbon steel, stainless steel, aluminum, and metalcore electrodes.

CATALOGUE & SPEC SHEETS

Spec Sheet