Lincoln Flextec 650X

MAKE: Lincoln


In Stock and available for shipping

Experience Simplicity, Flexibility and Reliability

For a multi-process welder that is built to be as simple, flexible, and reliable as possible, the Lincoln Flextec 650X is a multi-process welder that delivers. With up to 815 amps of superior welding power, this welder is suitable for a variety of applications.

Using CrossLinc® Technology, the Lincoln Flextec 650X drives efficiency and welding control at the arc. Without the added cable, it saves on costs, all while increasing quality, enhancing productivity and even improving welders’ safety on site. It runs on a wide range of available voltage input power and is IP23-rated for storage and outdoor operation.

Lincoln Flextec 650X specifications

  • Machines Communication Technology: analog, digital, CrossLinc, ArcLink
  • Wire Feeder Supply Voltage: 115VAC, 42VAC
  • Amphenol Pins (type of connector): 5, 14, 12
  • Work Lead Connector Type: Lug
  • Input Current: 61/50/40, 57/47/38
  • Input Hertz: 50, 50/60, 60
  • Input Power: 380/460/575/3/50/60
  • Input Phase: 3
  • Output Range: 10-815A
  • Rated Output: 750A/44V/60%, 650A/44V/100%
  • Dimensions (H x W x D): 21.8 in x 16.1 in x 29.3 in (554 mm x 410 mm x 745 mm)
  • Net Weight: 165 lbs (74.844 kg)

Lincoln Flextec 650X Features

CrossLinc® Technology

The Lincoln Flextec 650X is compatible with most Lincoln Electric feeders, and this welding machine allows operators full control and functionality at the arc to improve weld quality.

Ultimately, this increases arc time thanks to the remote procedure, meaning fewer trips are required to the power source to adjust settings. Fewer cables mean less jobsite clutter, and therefore, the CrossLinc® Technology improves the safety of welders.


The Lincoln Flextec 650X provides users with ultimate flexibility as it is compatible with various, in fact, most, Lincoln Electric® feeders. These feeders include the portable across-the-arc models, the common bench and boom models, and the CrossLinc™ or ArcLink®-equipped models.

The Lincoln Flextec 650X is the supreme machine for stick welding on thicker materials or large-diameter wire. It also has premium multi-process arc characteristics on all the DC wire, stick and TIG processes. Talk about flexibility!


The Lincoln Flextec 650X aims at making welding as seamless as possible thanks, which is made possible with its wide range of available 3-phase input power. Its fast arc response means users get a smooth arc action and consistent bead appearance.

The user weld schedule memory storage allows you to easily recall your pivotal and often most repeated weld procedures with the applicable feeders. However, this feature is only available with Flex Feed® 84 and Power Feed® wire feeders. Another outstanding feature that makes the Lincoln Flextec 650X so simple to use is the Synergic control with Power Feed wire feeders.


The Lincoln Flextec 650X aims to provide users with reliability that goes beyond the bounds of the average welding machines. This machine has components that are designed to run cool even in harsh, high temperature environments of put to 55°C and are Desert Duty® Rated.

Lincoln Flextec 650X Applications

  • Cross Country Pipeline
  • Construction & Field Erection
  • General Fabrication
  • Heavy Equipment
  • Heavy Fabrication
  • Structural Fabrication

Lincoln Flextec 650X Processes

  • Stick (SMAW)
  • Gouging (CAC-A)
  • Flux-Cored (FCAW)
  • TIG (GTAW)
  • MIG (GMAW)
  • Flux-Cored Self-Shielded (FCAW-S)
  • Flux-Cored Gas-Shielded (FCAW-G)
  • Submerged Arc (SAW)

Lincoln Flextec 650X FAQs

Can the Lincoln Flextec 650X work in hot conditions?

Yes! One feature that makes the Lincoln Flextec 650X so reliable is that it is Desert Duty® Rated for extreme temperatures up to 55°C.

Is the Lincoln Flextec 650X IP-rated?

Yes! The Lincoln Flextec 650X is engineered to be used outdoors and in harsh environments, and it has an IP23 rating.

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