FLEXTEC® 650X
Top Features
  • Easy one-knob weld process selection
  • Components designed to run cool for long life in high temperature environments
  • Engineered for outdoor use and harsh environments (IP23 rated)
  • Compatible with most Lincoln Electric feeders
  • Premium arc characteristics on all DC wire, stick and TIG processes
Process
  • Stick
  • TIG
  • MIG
  • Flux-Cored
  • Submerged Arc
  • Gouging
Input power
380/460/575/3/50/60
Input
Output
Equipment Details

This multi-process welder delivers up to 815 amps of welding power for a variety of applications, including construction, shipbuilding and heavy fabrication. Embedded CrossLinc® Technology drives welding control at the arc without an added cable to save costs, increase quality and enhance productivity and safety on the job site.
The world-ready Flextec 650X will run on a wide range of available voltage input power and is IP23 rated for outdoor operation and storage. Broad wire feeder compatibility is not an issue – The Flextec 650X will operate with almost any Lincoln Electric® wire feeder or welding process.
Simple. Reliable. Flexible. Specify the Flextec 650X for your heavy duty applications.

  • Simple
    » Easy one-knob weld process selection
    » Fast inverter arc response means smooth arc action and consistent bead appearance
    » User weld schedule memory storage allows easy recall of your critical or often repeated weld procedures with applicable feeders
    » Synergic single knob control over wire feed speed and voltage with applicable feeders
  • Reliable
    » Components designed to run cool for long life in high temperature environments
    » Engineered for outdoor use and harsh environments (IP23 rated)
    » Desert Duty® Rated for extreme temperatures up to 55°C
  • Flexible
    » Ideal for large diameter wire or stick welding on thick materials
    » Compatible with most Lincoln Electric feeders, including including older and new common bench and boom models, portable across-the-arc models and CrossLinc Technology or ArcLink®-equipped models
    » ArcLink digital communication compatibility ensures the Flextec 650X remains ‘future-proof’ as new wire feeders are introduced
    » Premium arc characteristics on all DC wire, stick and TIG processes
    » Large output range: 10-815A allows you to weld 20 ga stainless all the way through gouging with 1/2 in. carbons.
    » 115VAC duplex receptacle to power tools, lights, and accessories.

FLEXTEC® 650X                                                              K3425-1

Input Power 380/460/575/3/50/60
Rated Output 750A/44V/60%, 650A/44V/100%
Input Current 61/50/40, 57/47/38
Output Range 10-815A
Dimensions (H x W x D) 21.8 in x 16.1 in x 29.3 in (554 mm x 409 mm x 745 mm)
Net Weight 165lb (74.8kg)

Category

Product Number

Product Name

General

K3091-1

Multi-Process Switch

General

K4420-1

Flextec350X CE Filter Kit (380-575 Vac)

General

K1803-2

Weld Cable Package

General

3100211

Harris® Model 355 Flowmeter Regulator and Hose

General

K3059-4

Single Cylinder Inverter and Wire Feeder Cart

General

K3059-5

Dual Cylinder Inverter and Wire Feeder Cart

General

K4068-1

Inverter Cart Mounting Bracket Kit

General

K4424-1

Flextec 350X Locking Foot Kit

General

K2909-1

12-pin to 6-pin Adapter

STICK

K4345-1

CrossLinc Remote

STICK

Order K857-2 (25 ft.)
Order K857-3 (100 ft.)

Remote Output Control with 12-pin Universal Connector

TIG

K4986-1

Wireless Foot Pedal with 6-pin Amphenol®

TIG

K870-2

Foot Amptrol with 12-pin Amphenol Connector (25 ft)

TIG

K963-4

Hand Amptrol Rotary Track Style, 12-pin Amphenol (25 ft)

WIRE FEEDER

K4267-1

LN-25X

WIRE FEEDER

K3519-1

Activ8X

WIRE FEEDER See Publication E8.11 LF-72 Bench Model
WIRE FEEDER See Publication E8.11 LF-74 Bench Model
WIRE FEEDER See Publication E8.203 Flex Feed 74 HT
WIRE FEEDER See Publication E8.206 Flex Feed 84 Single Bench
WIRE FEEDER See Publication E8.268 Power Feed 84, Heavy Duty Wire Reel Stand, U/I, USB
SUBMERGED ARC K2814-4 MaxSA 10 Controller
SUBMERGED ARC K210-2 NA-3S Controller
SUBMERGED ARC K356-2 NA-5 Controller
SUBMERGED ARC K227-1 LT-7 Tractor