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Lincoln Electric  |  SKU: K3512-1

Lincoln Flextec 650X Multi-Process Welder with CrossLinc / LF-74 Ready-Pak - K3512-1

$16,565.81
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The Lincoln Flextec 650X - K3512-1 is a powerful, flexible multi-process welder with CrossLinc Technology, offering one-knob control, premium arc characteristics, and reliable performance in demanding environments.

Financing / Leasing Available

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A welding machine rental is great for short-term and long-term business needs. Welder leases and rentals let companies stay on top of the latest welding technology without draining their operating budget by paying upfront, in full for new machines. At the end of the lease period, you can either purchase the welding equipment outright or return it to WeldingMart. You can also buy the equipment anytime within the first year of your lease - see below for more details.

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Once approved, you'll have the option to select the term that best fits your budget and, if approved for more than you request, our calculator makes it easy to see how your payments change for any additional items you add to your lease. eDocs are available immediately, allowing you to order your new gear within minutes.

Have additional questions? Contact us to speak with a member of the WeldingMart team.

DETAILS

Lincoln Flextec 650X Multi-Process Welder with CrossLinc / LF-74 Ready-Pak - K3512-1

 

SIMPLE & EFFICIENT OPERATION

  • Compatible with versatile 3-phase input power options for maximum flexibility
  • Intuitive single-knob process selection for streamlined workflow
  • Superior arc response delivering smooth welding action and professional bead consistency
  • Advanced weld schedule memory system for quick recall of essential procedures with compatible feeders (Available with Power Feed® and Flex Feed® 84 wire feeders)
  • Precision synergic control technology for optimized wire feed speed and voltage with compatible feeders (Available with Power Feed wire feeders)

INDUSTRIAL-GRADE RELIABILITY

  • Premium cooling system design for extended component lifespan in extreme temperature environments
  • Heavy-duty construction engineered for challenging outdoor applications and harsh environments (IP23 rated)
  • Desert Duty® certification guarantees performance in extreme temperatures up to 55°C

MAXIMUM FLEXIBILITY

  • Optimized performance for heavy-gauge welding with large diameter wire or stick electrodes on thick materials
  • Universal compatibility with Lincoln Electric® feeding systems, including bench models, boom configurations, portable across-the-arc units and CrossLinc™ or ArcLink®-equipped systems
  • Professional multi-process welding capabilities across all DC wire, stick and TIG applications

INNOVATIVE CROSSLINC™ TECHNOLOGY

  • Cable-free operation with comprehensive functionality
  • Enhanced weld quality through remote procedure adjustment at the feeder
  • Productivity boost with reduced trips to power source for setting modifications
  • Improved workplace safety through elimination of control cable clutter

KEY FEATURES

  • Versatile 3-phase input power compatibility for any industrial environment
  • Streamlined single-knob process selection for efficient operation
  • Advanced thermal management for extended component lifespan in high-temperature applications
  • Exceptional performance with heavy-gauge materials using large diameter wire or stick electrodes
  • Complete functionality without control cables for simplified setup

Specifications


Product Weights & Dimensions
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 510 lbs (231.336 kg)

General Specification
Machines 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)
Input Current 61/50/40.57/47/38
Input Hertz 50.50/60.60
Input Phase 3
Input Power 380/460/575/3/50/60
Mode Icon CC/CV
Output Range 10-815A
Polarity DC

Machine Technologies & Connections
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

Wire Feeding Specifications
Number of driven rolls 4 rolls
Feeder type Bench
Configuration Single
Max spool diameter Drum
Communication Technology analog
UI type Simple
Max Rated Output Capable 500A
Max Wire Diameter (Solid) 1/16 in (1.6 mm)
Max Wire Diameter (Cored) 5/64 in (2 mm)
Feedhead Configuration Single
Wire Configuration Single
Power Source to Feeder Communication Connector Type 14-pin
Gun Bushing Tweco #2-#4
Max Spool Size (lbs) 60
Max Spool Size (kg) 30
Wire Feeders Processes MIG
Flux Cored

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

Warranty
Warranty 3 Years

Lincoln Flextec 650X Multi-Process Welder with CrossLinc / LF-74 Ready-Pak - K3512-1

 

SIMPLE & EFFICIENT OPERATION

  • Compatible with versatile 3-phase input power options for maximum flexibility
  • Intuitive single-knob process selection for streamlined workflow
  • Superior arc response delivering smooth welding action and professional bead consistency
  • Advanced weld schedule memory system for quick recall of essential procedures with compatible feeders (Available with Power Feed® and Flex Feed® 84 wire feeders)
  • Precision synergic control technology for optimized wire feed speed and voltage with compatible feeders (Available with Power Feed wire feeders)

INDUSTRIAL-GRADE RELIABILITY

  • Premium cooling system design for extended component lifespan in extreme temperature environments
  • Heavy-duty construction engineered for challenging outdoor applications and harsh environments (IP23 rated)
  • Desert Duty® certification guarantees performance in extreme temperatures up to 55°C

MAXIMUM FLEXIBILITY

  • Optimized performance for heavy-gauge welding with large diameter wire or stick electrodes on thick materials
  • Universal compatibility with Lincoln Electric® feeding systems, including bench models, boom configurations, portable across-the-arc units and CrossLinc™ or ArcLink®-equipped systems
  • Professional multi-process welding capabilities across all DC wire, stick and TIG applications

INNOVATIVE CROSSLINC™ TECHNOLOGY

  • Cable-free operation with comprehensive functionality
  • Enhanced weld quality through remote procedure adjustment at the feeder
  • Productivity boost with reduced trips to power source for setting modifications
  • Improved workplace safety through elimination of control cable clutter

KEY FEATURES

  • Versatile 3-phase input power compatibility for any industrial environment
  • Streamlined single-knob process selection for efficient operation
  • Advanced thermal management for extended component lifespan in high-temperature applications
  • Exceptional performance with heavy-gauge materials using large diameter wire or stick electrodes
  • Complete functionality without control cables for simplified setup

Specifications


Product Weights & Dimensions
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 510 lbs (231.336 kg)

General Specification
Machines 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)
Input Current 61/50/40.57/47/38
Input Hertz 50.50/60.60
Input Phase 3
Input Power 380/460/575/3/50/60
Mode Icon CC/CV
Output Range 10-815A
Polarity DC

Machine Technologies & Connections
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

Wire Feeding Specifications
Number of driven rolls 4 rolls
Feeder type Bench
Configuration Single
Max spool diameter Drum
Communication Technology analog
UI type Simple
Max Rated Output Capable 500A
Max Wire Diameter (Solid) 1/16 in (1.6 mm)
Max Wire Diameter (Cored) 5/64 in (2 mm)
Feedhead Configuration Single
Wire Configuration Single
Power Source to Feeder Communication Connector Type 14-pin
Gun Bushing Tweco #2-#4
Max Spool Size (lbs) 60
Max Spool Size (kg) 30
Wire Feeders Processes MIG
Flux Cored

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

Warranty
Warranty 3 Years

Includes

What's Included
  • Flextec® 650X Multi-Process Welder w/ CrossLinc™ / LF-74 Ready-Pak®

Specifications

Product Weights & Dimensions
Product Height (in) 21.8
Product Height (mm) 554
Product Width (in) 16.1
Product Width (mm) 410
Product Length (in) 29.3
Product Length (mm) 745
Product Weight (lb) 510
Product Weight (kg) 231.336
Machines
Machines 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)
Basic Specifications
Input Current 61/50/40,57/47/38
Input Hertz 50,50/60,60
Input Phase 3
Input Power 380/460/575/3/50/60
Mode Icon CC/CV
Output Range 10-815A
Polarity DC
Rated Output 750A/44V/60%,650A/44V/100%
Typical Applications Cross Country Pipeline
Construction & Field Erection
General Fabrication
Heavy Equipment
Heavy Fabrication
Structural Fabrication
Processes Stick (SMAW)
Gouging (CAC-A)
Flux-Cored (FCAW)
TIG (GTAW)
MIG (GMAW)
Equipment Classification Heavy Industrial
Welding Technology Inverter/Chopper

Reviews

Lincoln Flextec 650X Multi-Process Welder with CrossLinc / LF-74 Ready-Pak - K3512-1

 

SIMPLE & EFFICIENT OPERATION

  • Compatible with versatile 3-phase input power options for maximum flexibility
  • Intuitive single-knob process selection for streamlined workflow
  • Superior arc response delivering smooth welding action and professional bead consistency
  • Advanced weld schedule memory system for quick recall of essential procedures with compatible feeders (Available with Power Feed® and Flex Feed® 84 wire feeders)
  • Precision synergic control technology for optimized wire feed speed and voltage with compatible feeders (Available with Power Feed wire feeders)

INDUSTRIAL-GRADE RELIABILITY

  • Premium cooling system design for extended component lifespan in extreme temperature environments
  • Heavy-duty construction engineered for challenging outdoor applications and harsh environments (IP23 rated)
  • Desert Duty® certification guarantees performance in extreme temperatures up to 55°C

MAXIMUM FLEXIBILITY

  • Optimized performance for heavy-gauge welding with large diameter wire or stick electrodes on thick materials
  • Universal compatibility with Lincoln Electric® feeding systems, including bench models, boom configurations, portable across-the-arc units and CrossLinc™ or ArcLink®-equipped systems
  • Professional multi-process welding capabilities across all DC wire, stick and TIG applications

INNOVATIVE CROSSLINC™ TECHNOLOGY

  • Cable-free operation with comprehensive functionality
  • Enhanced weld quality through remote procedure adjustment at the feeder
  • Productivity boost with reduced trips to power source for setting modifications
  • Improved workplace safety through elimination of control cable clutter

KEY FEATURES

  • Versatile 3-phase input power compatibility for any industrial environment
  • Streamlined single-knob process selection for efficient operation
  • Advanced thermal management for extended component lifespan in high-temperature applications
  • Exceptional performance with heavy-gauge materials using large diameter wire or stick electrodes
  • Complete functionality without control cables for simplified setup

Specifications


Product Weights & Dimensions
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 510 lbs (231.336 kg)

General Specification
Machines 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)
Input Current 61/50/40.57/47/38
Input Hertz 50.50/60.60
Input Phase 3
Input Power 380/460/575/3/50/60
Mode Icon CC/CV
Output Range 10-815A
Polarity DC

Machine Technologies & Connections
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

Wire Feeding Specifications
Number of driven rolls 4 rolls
Feeder type Bench
Configuration Single
Max spool diameter Drum
Communication Technology analog
UI type Simple
Max Rated Output Capable 500A
Max Wire Diameter (Solid) 1/16 in (1.6 mm)
Max Wire Diameter (Cored) 5/64 in (2 mm)
Feedhead Configuration Single
Wire Configuration Single
Power Source to Feeder Communication Connector Type 14-pin
Gun Bushing Tweco #2-#4
Max Spool Size (lbs) 60
Max Spool Size (kg) 30
Wire Feeders Processes MIG
Flux Cored

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

Warranty
Warranty 3 Years

Lincoln Flextec 650X Multi-Process Welder with CrossLinc / LF-74 Ready-Pak - K3512-1

 

SIMPLE & EFFICIENT OPERATION

  • Compatible with versatile 3-phase input power options for maximum flexibility
  • Intuitive single-knob process selection for streamlined workflow
  • Superior arc response delivering smooth welding action and professional bead consistency
  • Advanced weld schedule memory system for quick recall of essential procedures with compatible feeders (Available with Power Feed® and Flex Feed® 84 wire feeders)
  • Precision synergic control technology for optimized wire feed speed and voltage with compatible feeders (Available with Power Feed wire feeders)

INDUSTRIAL-GRADE RELIABILITY

  • Premium cooling system design for extended component lifespan in extreme temperature environments
  • Heavy-duty construction engineered for challenging outdoor applications and harsh environments (IP23 rated)
  • Desert Duty® certification guarantees performance in extreme temperatures up to 55°C

MAXIMUM FLEXIBILITY

  • Optimized performance for heavy-gauge welding with large diameter wire or stick electrodes on thick materials
  • Universal compatibility with Lincoln Electric® feeding systems, including bench models, boom configurations, portable across-the-arc units and CrossLinc™ or ArcLink®-equipped systems
  • Professional multi-process welding capabilities across all DC wire, stick and TIG applications

INNOVATIVE CROSSLINC™ TECHNOLOGY

  • Cable-free operation with comprehensive functionality
  • Enhanced weld quality through remote procedure adjustment at the feeder
  • Productivity boost with reduced trips to power source for setting modifications
  • Improved workplace safety through elimination of control cable clutter

KEY FEATURES

  • Versatile 3-phase input power compatibility for any industrial environment
  • Streamlined single-knob process selection for efficient operation
  • Advanced thermal management for extended component lifespan in high-temperature applications
  • Exceptional performance with heavy-gauge materials using large diameter wire or stick electrodes
  • Complete functionality without control cables for simplified setup

Specifications


Product Weights & Dimensions
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 510 lbs (231.336 kg)

General Specification
Machines 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)
Input Current 61/50/40.57/47/38
Input Hertz 50.50/60.60
Input Phase 3
Input Power 380/460/575/3/50/60
Mode Icon CC/CV
Output Range 10-815A
Polarity DC

Machine Technologies & Connections
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

Wire Feeding Specifications
Number of driven rolls 4 rolls
Feeder type Bench
Configuration Single
Max spool diameter Drum
Communication Technology analog
UI type Simple
Max Rated Output Capable 500A
Max Wire Diameter (Solid) 1/16 in (1.6 mm)
Max Wire Diameter (Cored) 5/64 in (2 mm)
Feedhead Configuration Single
Wire Configuration Single
Power Source to Feeder Communication Connector Type 14-pin
Gun Bushing Tweco #2-#4
Max Spool Size (lbs) 60
Max Spool Size (kg) 30
Wire Feeders Processes MIG
Flux Cored

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

Warranty
Warranty 3 Years
Questions & Answers
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Lincoln Flextec 650X Multi-Process Welder with CrossLinc / LF-74 Ready-Pak - K3512-1 - WeldingMart.com
Lincoln Electric

Lincoln Flextec 650X Multi-Process Welder with CrossLinc / LF-74 Ready-Pak - K3512-1

$16,565.81

Lincoln Flextec 650X Multi-Process Welder with CrossLinc / LF-74 Ready-Pak - K3512-1

 

SIMPLE & EFFICIENT OPERATION

INDUSTRIAL-GRADE RELIABILITY

MAXIMUM FLEXIBILITY

INNOVATIVE CROSSLINC™ TECHNOLOGY

KEY FEATURES


Specifications


Product Weights & Dimensions
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 510 lbs (231.336 kg)

General Specification
Machines 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)
Input Current 61/50/40.57/47/38
Input Hertz 50.50/60.60
Input Phase 3
Input Power 380/460/575/3/50/60
Mode Icon CC/CV
Output Range 10-815A
Polarity DC

Machine Technologies & Connections
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

Wire Feeding Specifications
Number of driven rolls 4 rolls
Feeder type Bench
Configuration Single
Max spool diameter Drum
Communication Technology analog
UI type Simple
Max Rated Output Capable 500A
Max Wire Diameter (Solid) 1/16 in (1.6 mm)
Max Wire Diameter (Cored) 5/64 in (2 mm)
Feedhead Configuration Single
Wire Configuration Single
Power Source to Feeder Communication Connector Type 14-pin
Gun Bushing Tweco #2-#4
Max Spool Size (lbs) 60
Max Spool Size (kg) 30
Wire Feeders Processes MIG
Flux Cored

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

Warranty
Warranty 3 Years
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