Plasma Cutter Amps and Thickness — Here’s What You Need To Know!

Are you looking for a proper guideline for plasma cutter amps and thickness? Or, do you need to make a quality cut by the plasma cutter? Okay, to get an excellent idea about these two vital parts of a plasma cutter, stay tuned with this article.

In this article, you will get a proper guideline on the understanding of plasma cutter amps vs thickness. Besides, you will get to know the exact and accurate consideration of plasma cutter amps and thickness.

Let’s start our mission.

Understanding Plasma Cutter Amperage and Thickness

As a worker of a plasma cutter, you must understand its amperage and thickness. Now, the question can arise, what is the accurate amperage and thickness of the plasma cutter?

Before answering this question, I would like to provide you with some basic concepts on plasma cutter amps and thickness.

Plasma Cutter Amperage

What are plasma cutter amps?

Amps are the most necessary fact that you must consider for a plasma cutter to get an excellent cut. You need to consider it to maintain the quality and speed of the plasma cutter.

You may know that the amperage is different for each kind of metal. For stainless steel, you must know the best stainless steel cutting amperage. On the other hand, for mild steel, the cutting amperage can be different.

Let’s have a look at the measurement of cutting amperage for different kinds of metal.

Determining the right amperage for various metals

To get a quality cut, you should lower the cutting amperage. Lower cutting amperage will make an exact cut. But you must keep in mind that it will affect the working speed.

The quality and speed are similarly crucial matters for plasma cutters. So never forget to make a balance between speed and quality.

On the other hand, measuring cutting amps is different for each type of metal. Let’s get an idea of appropriate amperage for

You need less amperage to cut stainless steel. The initial amperages start from 40 and end to 300 amperages for stainless steel.

The question can arise, what is the reason behind different amperages while the metal is only stainless steel? It is because of thickness.

According to some experts, 20 is the lowest amperage for cutting any kind of metal. However, to cut mild steel, the preferable amps start from 30 and end to 300. Here the thickness is also an impactful matter.

Advantages of precise amperage in plasma cutting

There are a lot of benefits of accurate plasma cutter amps.

  • First of all, you will get a quality cut. The quality cut is necessary for each piece of metal that you need to use.
  • Accurate plasma cutter amps also provide you speedy cutting. When you will be able to make a combination of amps with respective metals, then it will make a speedy cut.
  • The amps also create a great impact on the result of plasma cutting. So, never forget to consider the amps to get an excellent result from your plasma cutter.

Plasma Cutter Thickness

What do you mean by plasma cutter thickness and why is it important?

Plasma cutter thickness means the maximum number of cuts that a plasma cutter lets you have. Every metal contains a respective range of possible thicknesses. So, you can do it by following the metals guide.

Moreover, thickness has a great impact on the effectiveness of plasma cutters. So, as a worker, you must consider the proper thickness of the metal. For this purpose, you may use the process core thicknesses (PCT) range to get an accurate cut.

Measuring metal thickness for effective plasma cutting

For accurate plasma cutting, you can’t ignore the measurement of thickness. The thickness of the metal depends on the metal type and the capability of the cutting system.

If you need an exact metal cut, then the PCT range is the best option for you. In this regard, you will be able to cut the metal piece in a medium range. Moreover, it will provide you a quality cut.

On the other hand, you can choose a range that is less than the PCT. It will give you a speedy cut. But keep in mind that it’s not suitable for a quality cut. Now the question can arise, what can you choose for a suitable cut? It’s easy to answer. Choose a range that is greater than PCT.

Sometimes the range of thickness depends on the types of metal. You will be able to cut sheet metal at a 0.5 MM minimum range. In the case of stainless steel, the range will be 0.750 MM, while mild steel requires 1.000 MM.

However, to get an accurate and quality cut, you must consider the matter thickness of the metal.

Benefits of accurate thickness in plasma cutting

There are several benefits associated with accurate plasma cutter thickness.

  • Firstly, you will get a quality cut from the plasma cutter. When you make a quality cut, it will be more durable. But when you can’t cut it properly, you will face various problems.
  • On the other hand, it will let you cut the metal speedily. The Speed of the plasma cutter is surprisingly associated with accurate thickness. So consider an accurate thickness and get a speedy plasma cutter.

What is the relationship between plasma cutter amps and thickness?

There is a deep relation between plasma cutter amps and thickness. You can’t decide the range of amps without thickness. Similarly, the range of thickness depends on the amps. Here is an example for you. For a ⅜ MM thickness, 40 amps are required.

However, to get a quality cut, measurement of plasma cutter amps and thickness is similarly crucial. Without a proper combination of these two vital facts, you may not get a quality cut.


You can get the required amperage from the regular power supply. So never be worried about it. On the other hand, selecting the exact thickness is a highly crucial matter. So, consider these two facts similarly and get an excellent cut.

However, I hope you have a clear concept now on the understanding of plasma cutter amps vs thickness. I strongly believe that you will be able to consider these two facts in your next project.

Never forget to maintain your safety. Good luck!