Models Explained and Reviewed: Lincoln 140HD vs Lincoln 140C

Lincoln 140c versus lincoln 140hd comparison

At one point or another, we have all been fans of Ironman. Who doesn’t want to build an amazing suit that makes a mere human a superhero? Who wouldn’t want a Transformer or Bumblebee at their disposal? How is making such a thing even possible? The answer to that is welding. Welding provides the outer metallic frame that holds together all the components and engines. For that, you will need a great welder, and if you are seeking help, on which is better, Lincoln 140HD vs 140C
Even if you are not into superheroes but consider yourself to be a builder, you can take up remarkable welding projects. It has a variety of applications, from the garage of your home where you work on DIYs to the construction sites and factories.
If you have been into welding for some time, you might have come across the company Lincoln Electrics. It is one of the leading manufacturers of welding products and motors and one of the most successful companies out there. Today we are going to discuss, which one would be the best to buy, a Lincoln 140HD or 140C

Models explained and compared: Lincoln 14HD vs 140C

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140 HD 140 C
Max amperage 140 140
Duty cycle 90A/19V/20% 90A/19.5V/20%
Weight (pounds) 50 58
Dimensions 18 x 15 x 16 inches 18.6 x 10.2 x 14 inches
Input voltage 120 120
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Lincoln Electric is a renowned manufacturing company dealing with the successful business of producing welding products and electric motors. The success of this company is due to the values it has incorporated in its system and the policies followed by it. Lincoln electrics provide one of the best long-lasting welders.

Lincoln 140HD

For somebody who is relatively new to the art of welding with a little hands-on experience, Lincoln 140hd makes a good choice. It comes equipped with a DVD and easy to follow instructions to help you begin your task.  If your welding needs are casual and you are unsure about the welder you should be using, keep on reading to have a better understanding of 140hd.

There are a few things to consider while investing in a product that is there to stay for the years to come. One of the best features that I personally feel this welder offers is quick and easy weld. With 120V input and 30 to 140 amps of output, it is best for light-to-moderate welding tasks. For home projects, this welder can become your best friend as you enjoy the liberty of working around the house installing things you have made. You can take up projects like welding wall shelves or jewelry holders and make welding your hobby as you slowly grow accustomed to it. The duty cycle of this welder is 20% but since it works well with simple tasks, it is not of much concern.

This product also has a high conducting brass-to-brass gun connection that enhances the conductivity of the system and provides extended safety.

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There are many advantages of investing in a 140hd welder. Some of these are explained below:

  • Unlike some welders, Lincoln can work with a number of materials that you might already have stored. Be it a flux core wire of a solid wire with gas, it will weld one metal to the other.
  • Because of it’s user-friendly and easy to understand knob controls, the welders find it easy to control the output ampere. This helps in minimizing the chances of making a mistake which would otherwise prove to be dangerous.
  • Getting your money’s worth product is one of the most important features. The aluminum drive roll system makes this durable for a long time.
  • This welding machine finds its shine in the materials that are thin.
  • For those who are not familiar with welding, this welder ensures you don’t have to exert yourself too much for good results.
  • When buying a product that deals with currents and voltages, one often wonders about the safety factors. Lincoln 140HD has excellent safety features.
  • Another feature is the tool-free polarity changes for MIG or flux-cored welding. This feature might not be utilized by many welders but is especially beneficial for those who do utilize it.
  • This product is lightweight and can easily be carried around to the site where you want to perform your welding tasks.
Drive roll system


If there are so many advantages of this product, there are bound to be a few disadvantages as well.

  • This welder is not designed to be used for heavy work that requires welding for extended periods of time.
  • It has a duty cycle of 20%. If you weld for a time crossing the threshold of the machine, it will automatically turn off to protect itself. The major drawback that comes with frequent halting is that it causes issues with the wire feed motor because stopping is not good.
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Lincoln 140C

Lincoln Electric is essentially the same thing with a few differences. In my opinion, these differences add up to make 140c better than 140hd.
This model is sometimes referred to as the upgraded ‘commercial’ model. This upgraded model is mostly supplied by online merchants and local welding suppliers.
The product has the same outlook as the other retail machines but if you examine this welder closely, you will find improvements in the areas where there was room for such changes. Some of the more noticeable changes lie in power source, wire drive and the voltage control of this product.

One of the features that I find to be of more importance than others when comparing with 140hd, is the option of the spool gun. All you have to do is detach the standard MIG gun and in its place, plug in the economical Magnum spool gun. This gun has enhanced the performance of aluminum feeding.

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In the above section, the advantages of 140hd had been discussed. As this product is the enhanced version, it has added advantages.

  • This product is designed in such a way as to give a no-hassle tool-less design. It finds its use while changing the input power, polarity, and spool mounting.
  • The ready-to-use spool gun gives it enhanced performance.
  • Another factor that improves its performance is the drive motor with enhanced torque. This industrial closed-design betters the performance when compared with the 140hd.
  • In order to save sensitive components from the environment, it has a tough PC board protection.
  • It produces smooth and better results because of its good bending capability.


Just like with Lincoln 140HD, so does 140C have few drawbacks. Some of them are discussed below:

  • It is not the best product to be carried around since it doesn’t work without an extra gas tube.
  • There is a specific range of thickness of material between which this welder can weld the metals.
  • Since it is not lightweight, it can’t be carried around easily. For it to be moved from one place to another, you might need a cart.
  • Another disadvantage is that it does not support a generator.

Getting this product will be your money’s worth. The warranty can be extended to five years.

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Buying Guide:

This is the only guide you will ever need to choose the best welder. Lincoln Electronics provide one-of-a-kind products. Choosing between two slightly different products of the same company can be slightly demanding. You need to do some thorough research to know what exactly you should be looking for in the products.

Lincoln 140hd is best suited for newbies who do not have heavy welding projects. It works well for small projects because of the duty cycle. It shuts down automatically in order to save itself. One of the drawbacks that I personally feel is associated with the product is the noise of the fan. While you try to get in your zone and build up the tempo to work, this type of noise can be quite distracting. However, 140c doesn’t have this problem. You can get to work within peace and quiet.

Another feature to consider while getting the product is the weight. Since welding requires a lot of moving around, the weight of the product should be that it is portable. 140hd is lighter when compared to 140c. It can easily be moved around whereas the latter might need a special carrier to help move from one place to another. The portability of 140c makes it somewhat of a drawback to otherwise a beautiful system.

Since welding requires melting the metals together to combine them, one of the most important features to look for is the torch trigger. It should be balanced as to melt and combine the metals. It should not be too strong and not too weak that it is unable to perform the job. One of the major drawbacks I found in using 140hd in earlier stages was the strength of the trigger. It wasted a lot of material which would otherwise have been saved. This can be reversed if you use a spool gun. 140c comes with an added accessory: a spool gun. You can remove the default torch and fit in the spool gun to make welding tricky metals easier for yourself.

Frequently asked questions:

Many welders are faced with the challenge to fix something that
involves aluminum. It might be a small project they had taken up or something around the house needs to be repaired or modified. When working with metals such as aluminum, it can be quite tricky to get a hold of how to weld without a spool gun. Aluminum is conductive and very soft. To work with these properties, welding amperages needs to be spot on.

Can I weld aluminum with 140 HD?

140h HD does not come equipped with one. So it may prove to be a little difficult to weld this metal. But all versions of Lincoln are compatible with a spool gun.

Can stainless steel be welded by 140?

Yes. All versions of 140 can weld stainless steel. Tri-Mix shielding gas is recommended for this type of welding. (for more detailed guide read this)

What is the duty cycle of 140c?

The c in the name stands for commercial. This product can not perform heavy tasks for long periods of time. The duty cycle of this product is 20% at 90 amps, which means you can run it in 90 amps for two minutes. It is High enough to withstand welding on simple hobby projects.

Does the Lincoln Company provide full repair and replacement if something breaks down?

This totally depends upon the situation. In most cases, if the damage is not serious, the company will repair or even replace the component broken. But if serious damage has occurred which was not a fault in the product, the company might not go for a replacement.


As a final verdict, both the products have their own advantages and disadvantages. There are many similarities between these two products. However, 140c is better than 140hd. It is the newer version, after all.

In order to make the right decision, you need to consider the factors that affect your work the most. Both these welders are great. But 140c finds its edge in the sense of having slightly better technology used in the machine. However, even the people who do not have that much experience with welding can use both machines to work on a project with ease.

It is a little heavy, but it is durable and comes with a long term warranty. If you do decide to go with this product, you will find this to be a good investment. The spool gun that this product comes equipped with makes the product work better with metals that are otherwise tricky to weld.
Even though there are some disadvantages, you will not be disappointed with this welder.