Lincoln Pro MIG 140 2021: The Good and The Bad may earn a commission if you purchase a product through one of the links provided.

Looking for the Lincoln Pro MIG 140?

Lincoln Electric has been known for its premium quality of products for over a decade now. The Lincoln Pro MIG 140 welder is one of those exceptional devices curated by Lincoln.

It is unbelievable that a welder at a price so affordable as this gets you durability, quality welds, and absolute powerful wire speed, all in a single piece of the welder. To know more about the same, we need you to once go through the points mentioned below.

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Creating, renovating, and repairing metallic things can excite to a different level if you are into DIYs or welding. Well, with Lincoln pro MIG 140, following your passion can become very easy.

It has a rapid set-up and easy button controls; this welder is perfect as per safety perspective. With a very decent power supply support and a precise duty-cycle, it will make your work very quick and handy.

But this is not it. There are many more you will be interested in knowing about Lincoln Pro MIG 140 welder, which we have listed down below in this article.


Not only is the Lincoln Pro MIG 140 sturdy and agile; but also comes with some superb specifications:

  • Duty Cycle: 20% at 90 Amp.
  • Input Voltage: 120V.
  • Welding Amperage: 30 to 140 A.
  • Welding thickness: 24 gauge to 3/16 inches.
  • Wire feed speed range: 50 to 500 IPM.
  • Total product weight: 50 pounds.
  • Types of the process: MIG and Flux core.
  • Dimensions: 13.7 x 17.9 x 10.15 inch.


  • Versatile: It is very versatile and perfect for home, necessary farm repairs, and workshops.
  • Dual Voltage: Operates on Dual voltage of 120V to 240V.
  • Duty Cycle: It offers a handsome duty cycle of 20% at 90 amp, which will provide you longer operation time with a welding amperage of 30 to 140 amp.
  • Variable Feed Speed: It provides a variable feed speed ranging from 50 IPM to 500 IPM.
  • Materials: It is suitable to build all kinds of metals like aluminum, mild steel, and even stainless steel.
  • Thickness: It is capable of welding material of thickness up to 3/16 inches.
  • Accessories: You are also going to get a 0.025-inch MIG wire and a 0.035-inch-wide spool gun.
  • Adjustable Drive System: It also has an adjustable drive system and a numeric drive tension indicator.


With straightforward controls and user-friendly interface, Lincoln pro MIG 140 is perfect for both beginners and professionals.

To better understand its working, it comes with a complete user manual and a calibration chart that describes the functioning and basics of this welder right from start to stop.

If you face a problem in the assembly of this welder, then the calibration chart makes it very easy to assemble it in one go.

It has a high-pressure steam jet to allow its functioning on a wide variety of wires. Made up of an aluminum hard cast body, this is a very durable MIG welder.

Also, because of its sturdy body, it lasts longer. Again, with a decent warranty, don’t worry about the wearing and tearing of this welder. With pretty useful features, this welder will make your welding experience fantastic.

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Safety is the foremost priority while working with an electric appliance like a Welder. Working with fire and sparks, it is hazardous working with a welder.

But Lincoln pro MIG 140 welder comes with the safety equipment like gloves and gas shield intact. So, you will need to buy them separately.

Apart from this, use other safety precautions as well. Like, wear fire-resistant clothes while working with a welder. Apart from this, use a welding helmet or glasses. Don’t look at the spark with naked eyes, as it might hurt your eyes.

Apart from this, it also has a cooling mechanism to avoid thermal overloading of the welder. Its perfect duty cycle also lets the welder rest while working with it.


This welder is perfect for all the power outlets working on a dual voltage of 120V and 240V. Also, with a duty cycle of 20% at 90 amp, you might need to wait for a moment while working with this welder, but that provides time for proper cooling of the welder side-by-side.


Although this welder is quite heavy, you might need to explicitly purchase a welder cart if you want to transport it.

But it doesn’t support a generator and thus not suitable for on-site welding works. Therefore, most of the time, you won’t need to carry it along with you.

Lincoln Pro MIG 140 welder Pros
  • It comes with a gearbox that avoids excess sound pollution.
  • Functional for both MIG and Flux-core welding.
  • Works on the power supply of either 120V or 240V.
  • Perfect for mild steel, aluminum, and stainless steel.
  • Quick and easy set-up.
  • It has an adjustable drive system with a numeric drive.
  • Because of its durable build, it lasts longer.
Lincoln Pro MIG 140 welder Cons
  • It doesn’t support generator and, thus, not perfect for remote sites.
  • Perfect for light-duty work but not suitable for heavy-duty industrial work.


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If you are a hobbyist and love DIYs, then Lincoln pro MIG 140 welder is all you want. Not just is it suitable for even the newbies who are just stepping into the field of welding.

Or, you are an expert and want a perfect partner in your workshop, then this almighty welder can be your ideal companion. As it lacks portability, this is not suitable for the professional purpose to a large extent.


1. Is Lincoln Pro MIG 140 any good?

If you are a hobbyist who enjoys do-it-yourself projects, the Lincoln pro MIG 140 welder is everything you need. Not only is it suited for novices who are just getting started in the field of welding.
Or, if you're an expert looking for a suitable workshop partner, this massive welder may be the answer. Unfortunately, due to its lack of portability, it is mainly unsuitable for professional use.

2. Is Lincoln Pro MIG 140 a safe welding machine?

Lincoln pro MIG 140 welder includes the necessary safety equipment, including gloves and a gas shield. Unfortunately, as a result, you will need to purchase them separately. Apart from this, take other safety precautions. For instance, when working with a welder, wear flame-resistant clothing. Apart from that, use a welding helmet or protective eyewear. Avoid looking at the spark with your naked eyes, as it may irritate you.

3. What is the power required by the Lincoln Pro MIG 140 to operate?

This welder is ideal for any outlet that operates on a dual voltage of 120V and 240V. Additionally, with a duty cycle of 20% at 90 amps, you may need to wait a moment when working with this welder, but this allows for optimal cooling of the welders side-by-side.

4. Can you weld aluminum with a Lincoln 140?

The PRO MIG 140 may be used practically anyplace because it operates on standard 120-volt input power. In addition, the machine's simple two-knob control makes it simple to set up for gasless flux-cored welding for deeper penetration into thicker steel or for gas-shielded MIG welding on thin gauge steel, stainless steel, or aluminum.

5. What size breaker do I need for a Lincoln 140 welder?

The manual specifies a maximum input size of 20 Amps and a maximum input power of 20 Amps.

About the Author Gregory

Hi, my name is Gregory! I have been welding practically all of my life and love it. As I have gotten older I have started to weld less and less, so in order to continue my love for welding I created this website. I like to write about my experiences and help you all become welders. I hope that you enjoy the site!

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