Lincoln Century FC-90 Review


The Lincoln Century FC-90 flux-cored welder emerges as a commendable choice for those seeking a compact, portable, and versatile welding solution. Its design and performance cater to both hobbyists and professionals needing a reliable tool for various welding tasks.

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  • Welding Process: Flux Core welding.
  • Power Input: 120V, 60 Hz.
  • Amperage Output: 30-90 amp DC.
  • Max Weld Thickness: 0.25 in.
  • Spool Size: Up to 2 lbs.
  • Max Welding Wire Diameter: 0.035 in.
  • Duty Cycle: 30% at 80A.
  • Dimensions: 11.25 x 5.75 x 17 inches.
  • Weight: 18 lbs.
  • Warranty: 6 months on the welder, 90 days on gun and cables.

Unboxing & First Impressions

Opening the Lincoln Electric (Century) FC-90 flux-cored welder, you’re greeted with a complete kit tailored for immediate welding tasks. Included are a welding gun and cable for precise control over the welding process, a power cord for easy connection to 110-volt outlets, and various contact tips for different welding needs.

The package also features a hand shield with a protective lens, a chipping hammer/brush for clean-up, and a knurled drive roller for consistent wire feed. A detailed user manual offers valuable instructions and safety tips, ensuring you’re well-prepared to start welding safely and effectively, highlighting the FC-90’s user-friendly setup and Lincoln Electric’s commitment to quality.

Power and Output Range

It operates on a standard 110-volt outlet, with an amperage output range of 30 to 90 amps, suitable for a variety of welding tasks. The welder’s compact size belies its robust performance across various metal thicknesses​.

Portability and Design

The FC-90 welder is lightweight, approximately 19 pounds, enhancing its portability with a built-in shoulder strap. Its sturdy design features metal covers and a user-friendly interface with two control knobs for precise adjustments​.

Duty Cycle and Efficiency

The welder has a duty cycle of 30% at 80A, meaning it can weld continuously for 3 minutes at 80 amps before needing a cool-down period. This feature, combined with its efficient power use, makes it suitable for various project sizes​.

Functionality and Usability

The FC-90 supports 0.35 wire spools up to two pounds with a top-loading mechanism for easy replacement. It also offers infinite controls for voltage and wire feed speed, allowing for precise project adjustments​

Performance Insights

The FC-90 demonstrates robust performance across various metal thicknesses. It produces clean, consistent welds with excellent penetration on materials up to 1/4 inch thick, showcasing its capability to handle a range of welding demands efficiently.

Despite its compact size, the welder impresses with its power and the quality of welds, making it a reliable tool for both delicate and heavy-duty tasks​​.

Design and Usability

The welder’s compact design does not compromise its durability. It features a sturdy build with metal covers and a pleasing red color. The infinite controls for voltage and wire feed speed stand out, offering precise tuning for projects requiring attention to detail. However, the cables may be short for some projects, necessitating an extension cord​​.

Practical Considerations

  • Material Thickness: It performs well on materials up to 3/16 inch thick, offering more penetration than many gas-shielded welders and flexibility in tweaking settings for precise projects​​.
  • Wire Feed and Gun: The wire feed mechanism is notably sturdy, despite being made of plastic, with metal drive rollers designed for flux-cored wire​​.

Pros and Cons


  • Portability: Its lightweight and compact design make it easily transportable.
  • Ease of Use: Simple controls and top-loading spool mechanism offer straightforward operation.
  • Versatile Power: Compatible with standard 110-volt outlets and offers a broad amperage range for various tasks.


  • Limited Duty Cycle: Requires frequent cooling breaks, which can slow progress on larger projects.
  • Spool Size Limitation: Only accommodates smaller spool sizes, potentially limiting uninterrupted welding time.
  • Limited Weld Thickness: Best suited for light to medium projects, not heavy industrial use.

Safety and Maintenance

Safety Tips

  • Wear Proper PPE: Always use appropriate personal protective equipment (PPE), including a welding helmet, gloves, and protective clothing, to guard against sparks, heat, and UV radiation.
  • Ensure Adequate Ventilation: Work in a well-ventilated area to avoid inhaling harmful fumes and gases produced during welding.
  • Check for Flammable Materials: Keep the welding area clear of flammable materials to prevent fires.
  • Use Correct Eye Protection: Wear a welding helmet with the appropriate shade lens to protect your eyes from the bright arc and UV/IR radiation.
  • Ground the Welder Properly: Ensure the welder is properly grounded to prevent electrical shock.

Maintenance Tips

  • Regularly Inspect Cables and Connections: Check for wear and tear on cables and ensure all connections are tight and clean to maintain good electrical contact.
  • Clean the Welder: After use, clean the welder and surrounding area to remove dust and debris that could affect its performance or start a fire.
  • Store Correctly: When not in use, store the welder in a dry, covered area to prevent moisture damage and corrosion.
  • Replace Consumables: Regularly check and replace consumables, such as contact tips and nozzles, to ensure consistent welding performance.
  • Follow Manufacturer’s Guidelines: Adhere to the maintenance schedule and procedures outlined in the user manual to keep the welder in optimal condition.

Review of Visual Aspects

The Lincoln Century FC-90 impresses with its visual aspects, presenting a sleek, compact design that doesn’t just hint at its portability but also its durability. Its striking red color ensures it stands out in any workshop or garage, signaling Lincoln Electric’s signature quality and attention to aesthetics.

The welder’s user-friendly interface, featuring intuitively placed control knobs, emphasizes its approachability for both beginners and seasoned professionals. Despite its small stature, the FC-90 carries an air of robustness, with its well-built exterior promising longevity and reliability. This combination of visual cues not only makes it an attractive piece of equipment but also subtly reassures the user of its capability to handle a variety of welding tasks with ease.

About This Item

  • The FC-90 flux-cored welder features a lightweight, compact design, making it easy to carry and ideal for both home and on-site projects.
  • With a user-friendly interface, including intuitive control knobs for wire feed and amperage adjustments, it’s suitable for welders at any skill level.
  • Designed to operate on a standard 110-volt outlet, it offers a wide amperage range of 30-90 amps, accommodating a variety of welding tasks from thin sheet metal to thicker steel.
  • Emphasizing Lincoln Electric’s commitment to quality, the FC-90 boasts a durable exterior and includes essential accessories, ensuring reliability and long-term performance.

Comparison Table

FeatureLincoln Electric (Century) FC-90Titanium Easy Flux 125
Welding ProcessFlux-CoredFlux-Cored
Input Voltage120V120V
Amperage Output30-90 Amps30-125 Amps
Max Weld Thickness0.25 inVaries by material
Wire Feed SpeedAdjustableAdjustable
Duty Cycle30% at 80AVaries
PortabilityLightweight & PortableLightweight & Portable
Price PointModerateTypically lower
Ease of UseUser-friendly interfaceSimplified controls
Suitable for BeginnersYesYes

Titanium Easy Flux 125 Specifications

  • Welding Process: Flux-Core Welding
  • Power Input: 120V, 60 Hz
  • Amperage Output: 30-125 A
  • Duty Cycle: 30% at 90 A
  • Wire Speed: 60-200 IPM
  • Welding Wire Capacity: 0.030″/0.035″ Flux-Cored
  • Wire Spool Capacity: 2 lb spool

Final Verdict

The Lincoln Electric Century FC-90 flux-cored welder stands out for its combination of performance, portability, and ease of use. It offers great value for its price, especially considering its portability and the quality assurance of the Lincoln brand. While it may have some limitations, such as the duty cycle and spool capacity, its overall performance and reliability make it a recommended choice for hobbyists, DIY enthusiasts, and professionals looking for a compact welding solution for medium-thickness materials and various projects​​.


  1. What type of welding does the FC-90 perform?
    The FC-90 is designed for flux-cored welding, suitable for various projects involving mild steel.
  2. Is the FC-90 easy for beginners to use?
    Yes, its simple interface and straightforward operation make it ideal for beginners, while still offering the precision required by experienced users.
  3. What power source does the FC-90 require?
    It operates on a standard 110-volt outlet, making it convenient for use in most settings without needing special power arrangements.
  4. Can the FC-90 weld thick materials?
    It has a maximum welding thickness of 0.25 inches, accommodating a range of projects from thin sheet metal to moderately thick steel.
  5. What is the duty cycle of the FC-90?
    The duty cycle is 30% at 80 amps, indicating it can weld continuously for 3 minutes at 80 amps before needing a cool-down period.
  6. How portable is the FC-90?
    Weighing around 18 lbs and designed with a compact frame, it is highly portable for both workshop and on-site welding tasks.
  7. What accessories come with the FC-90?
    It includes a welding gun and cable, a power cord, multiple contact tips, a hand shield with a lens, a chipping hammer/brush combo, and a knurled drive roller for wire feeding.
  8. Does the FC-90 have any safety features?
    Yes, it features thermal overload protection to prevent overheating, ensuring safe operation during extended use.
  9. How does the wire feed mechanism work?
    The FC-90 features a smooth, consistent wire feed system, adjustable for wire thickness, aiding in creating clean, high-quality welds.
  10. Where can I purchase replacement parts or accessories for the FC-90?
    Replacement parts and accessories can be found through Lincoln Electric’s authorized dealers and service centers, ensuring easy maintenance and long-term usability.

We’re eager to learn about your experiences with the Lincoln Electric (Century) FC-90 flux-cored welder! Please share your personal stories, feedback, and any tips you might have in the comments section below. Your insights are invaluable, helping others make well-informed decisions about their welding needs. Whether you’ve tackled big projects, small repairs, or anything in between, your perspective could be a great guide for fellow welders considering this tool.

Jack Williams
Jack Williams
Forestry Author

I'm Jack Williams, Jack Williams, my expertise in welding and generator technologies extends beyond traditional boundaries. With over 13 years of experience, I have honed my skills in a range of heavy-duty equipment, focusing particularly on welding and power generation. My passion for nature and commitment to ecological sustainability inform my approach to work. I emphasize safety, efficiency, and staying current with technological advancements. Beyond my technical skills, I am dedicated to sharing knowledge and fostering environmental awareness, aiming to contribute positively to both the welding and generator operation industries.


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