Lincoln Flextec 650X Multi-Process Welder with CrossLinc / LF-74 Ready-Pak - K3512-1
This multi-process welder delivers up to 815 amps of welding power for various 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.
The Lincoln Flextec 650X multi-process welder represents the pinnacle of industrial welding technology, engineered specifically for demanding applications that require exceptional power and versatility. This professional-grade welding system delivers superior arc performance across multiple processes including Stick, TIG, MIG, Flux-Cored, and Gouging with precision control that ensures optimal weld quality in even the most challenging environments. The revolutionary CrossLinc® Technology eliminates the need for additional control cables, allowing welders to make parameter adjustments directly at the point of welding, which significantly enhances productivity while reducing jobsite clutter and potential safety hazards. With its robust IP23 rating and Desert Duty® certification for operation in extreme temperatures up to 55°C, the Flextec 650X maintains reliable performance in harsh outdoor conditions.
Designed for maximum operational flexibility, the Flextec 650X features an intuitive interface with simple one-knob process selection that makes switching between welding applications effortless and efficient. The welder's fast arc response ensures smooth arc action and consistent bead appearance across various materials and thicknesses, while user weld schedule memory storage capabilities allow quick recall of critical or frequently used welding procedures when paired with compatible wire feeders. The system's broad compatibility with Lincoln Electric® feeders—including bench, boom, portable across-the-arc models, and those equipped with CrossLinc™ or ArcLink®—makes it an ideal power source for diverse industrial welding operations. Components engineered to run cool even in high-temperature environments extend service life and minimize downtime, making the Flextec 650X an exceptionally reliable solution for construction projects, cross-country pipeline installations, heavy fabrication, structural manufacturing, and other demanding applications where performance and durability are paramount.
What's Included
- Cart for Inverter and Wire Feeder | K3059-4
- Weld Power Cable - Lug to Lug (3/0, 600A, 60%) - 10 ft. (3 m) | K1842-10
- Control Cable Extension - Male 14 pin to Female 14 pin - 10 ft (3 m) | K1797-10
- Drive Roll Kit .035, .045 (0.9, 1.2 mm) Solid Wire | KP1505-1
- Cable Liner .052-1/16 in (1.3-1.6 mm) 15 ft (4.6 m) | KP44-116-15
- Work Lead - Lug & GC500 Ground Clamp (4/0, 600A, 60%) - 15 ft. (4.6 m) | K2149-1
- Connector Kit - LF-72-74, LN-25 Pro, Power Feed 25M | K466-10
- Drive Roll Kit 1/16 in (1.6 mm) Cored Wire | KP1505-1/16C
- Magnum PRO Curve 400 Welding Guns | K2952-2
- Flextec 650X Multi-Process Welder with CrossLinc Technology | K3425-1
- LF-74 Wire Feeder, Bench Model, Heavy Duty | K2426-5
- Model 355-2A/58010 Flowmeter Regulator Shielding Gas Kit | 3100211
Features
- Use with a wide range of available 3 phase input power
- Easy one-knob process selection
- Components designed to run cool for long life in high temperature environments
- Ideal for large diameter wire or Stick welding on thick materials
- Full functionality without control cables
- Fast 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 one knob control over wire feed speed and voltage with applicable feeders
- Engineered for outdoor use and harsh environments (IP23 rated)
- Desert Duty® Rated for extreme temperatures up to 55°C
- Compatible with most Lincoln Electric® feeders, including common bench and boom models
- Premium multi-process arc characteristics on all DC wire, stick and TIG processes
- CrossLinc™ Technology enables remote procedure setting at the feeder to improve weld quality
- Increases arc time with fewer trips to the power source to adjust settings
- Improves safety by reducing jobsite clutter
Specifications
| 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) |
| Machines Processes | Stick (SMAW) Gouging (CAC-A) Flux-Cored (FCAW) TIG (GTAW) MIG (GMAW) Flux-Cored Gas Shielded (FCAW-G) Flux-Cored Gas Shielded (FCAW-G) Submerged Arc (SAW) |
| Input Current | 61/50/42/57/47/38 |
| Input Hertz | 50/60/60 |
| Input Phase | 3 |
| Input Power | 380/400/575/3/50/60 |
| Mode Icon | CC/CV |
| Output Range | 10-815A |
| Polarity | DC |
| 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 |
| 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 |
| Typical Application | Cross Country Pipeline Construction & Field Erection General Fabrication Heavy Equipment Heavy Fabrication Structural Fabrication |
| Warranty | 3 Years |
Lincoln Flextec 650X Multi-Process Welder with CrossLinc / LF-74 Ready-Pak - K3512-1
This multi-process welder delivers up to 815 amps of welding power for various 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.
The Lincoln Flextec 650X multi-process welder represents the pinnacle of industrial welding technology, engineered specifically for demanding applications that require exceptional power and versatility. This professional-grade welding system delivers superior arc performance across multiple processes including Stick, TIG, MIG, Flux-Cored, and Gouging with precision control that ensures optimal weld quality in even the most challenging environments. The revolutionary CrossLinc® Technology eliminates the need for additional control cables, allowing welders to make parameter adjustments directly at the point of welding, which significantly enhances productivity while reducing jobsite clutter and potential safety hazards. With its robust IP23 rating and Desert Duty® certification for operation in extreme temperatures up to 55°C, the Flextec 650X maintains reliable performance in harsh outdoor conditions.
Designed for maximum operational flexibility, the Flextec 650X features an intuitive interface with simple one-knob process selection that makes switching between welding applications effortless and efficient. The welder's fast arc response ensures smooth arc action and consistent bead appearance across various materials and thicknesses, while user weld schedule memory storage capabilities allow quick recall of critical or frequently used welding procedures when paired with compatible wire feeders. The system's broad compatibility with Lincoln Electric® feeders—including bench, boom, portable across-the-arc models, and those equipped with CrossLinc™ or ArcLink®—makes it an ideal power source for diverse industrial welding operations. Components engineered to run cool even in high-temperature environments extend service life and minimize downtime, making the Flextec 650X an exceptionally reliable solution for construction projects, cross-country pipeline installations, heavy fabrication, structural manufacturing, and other demanding applications where performance and durability are paramount.
What's Included
- Cart for Inverter and Wire Feeder | K3059-4
- Weld Power Cable - Lug to Lug (3/0, 600A, 60%) - 10 ft. (3 m) | K1842-10
- Control Cable Extension - Male 14 pin to Female 14 pin - 10 ft (3 m) | K1797-10
- Drive Roll Kit .035, .045 (0.9, 1.2 mm) Solid Wire | KP1505-1
- Cable Liner .052-1/16 in (1.3-1.6 mm) 15 ft (4.6 m) | KP44-116-15
- Work Lead - Lug & GC500 Ground Clamp (4/0, 600A, 60%) - 15 ft. (4.6 m) | K2149-1
- Connector Kit - LF-72-74, LN-25 Pro, Power Feed 25M | K466-10
- Drive Roll Kit 1/16 in (1.6 mm) Cored Wire | KP1505-1/16C
- Magnum PRO Curve 400 Welding Guns | K2952-2
- Flextec 650X Multi-Process Welder with CrossLinc Technology | K3425-1
- LF-74 Wire Feeder, Bench Model, Heavy Duty | K2426-5
- Model 355-2A/58010 Flowmeter Regulator Shielding Gas Kit | 3100211
Features
- Use with a wide range of available 3 phase input power
- Easy one-knob process selection
- Components designed to run cool for long life in high temperature environments
- Ideal for large diameter wire or Stick welding on thick materials
- Full functionality without control cables
- Fast 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 one knob control over wire feed speed and voltage with applicable feeders
- Engineered for outdoor use and harsh environments (IP23 rated)
- Desert Duty® Rated for extreme temperatures up to 55°C
- Compatible with most Lincoln Electric® feeders, including common bench and boom models
- Premium multi-process arc characteristics on all DC wire, stick and TIG processes
- CrossLinc™ Technology enables remote procedure setting at the feeder to improve weld quality
- Increases arc time with fewer trips to the power source to adjust settings
- Improves safety by reducing jobsite clutter
Specifications
| 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) |
| Machines Processes | Stick (SMAW) Gouging (CAC-A) Flux-Cored (FCAW) TIG (GTAW) MIG (GMAW) Flux-Cored Gas Shielded (FCAW-G) Flux-Cored Gas Shielded (FCAW-G) Submerged Arc (SAW) |
| Input Current | 61/50/42/57/47/38 |
| Input Hertz | 50/60/60 |
| Input Phase | 3 |
| Input Power | 380/400/575/3/50/60 |
| Mode Icon | CC/CV |
| Output Range | 10-815A |
| Polarity | DC |
| 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 |
| 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 |
| Typical Application | Cross Country Pipeline Construction & Field Erection General Fabrication Heavy Equipment Heavy Fabrication Structural Fabrication |
| Warranty | 3 Years |
