5 Best Plasma Cutters In 2021 Reviewed & Rated

best plasma cutters

For an instant result, the non-touch pilot arc Lotos LTP5000D outranked my list of the best plasma cutters. This cutter comprises dual voltage which works like a breeze on dual frequencies. It can make clean cuts on a wide range of materials. Go for it!

A plasma cutter is a device which is capable of cutting through the electrically conductive materials with the help of a jet of hot plasma. Though it can cut almost all the conductive metals, the list comprises steel, stainless steel, brass, copper, aluminum and many more.

There are a lot of critical factors which should be considered before you finalize a suitable plasma cutter. So, I have listed only 5 best plasma cutters which could gracefully pass my vetting list. Let’s have a tour.

5 Best Plasma Cutters In 2021 With Reviews

1. Lotos LTP5000D 50Amp Non-Touch Pilot Arc Plasma Cutter

This LTP5000D plasma cutter by Lotos is a high-frequency non-touch start pilot arc plasma cutter. This versatile cutter cuts through painted, rusty and rough surfaces like a breeze. The best thing is that it generates minimal slag while doing its job.

This pilot arc technology protects the tip as it allows you to cut the metal without any direct contact of the tip to the metal. Therefore, you get longer consumable life and a premium cutting quality.

This plasma cutter utilizes non-hazardous compressed air which is capable of cutting alloy steel, mild steel, stainless steel, aluminum and copper material. Also, this compact designed cutter comes with a handle for easy portability. 

Coming to the performance and output attributes, Lotos cutter features 10 to 50 amps of DC output that can make ½ inches of an ideal clean-cut and a severance cut of ¾ inches under 220/240 V.

Further, at 10-35 amps of DC output, it makes ⅓ inches of clean-cut and a ⅖ inches of maximum severance cut under 110/120 volts. So, you can see that it works on automatic dual voltage and dual frequency which is 110/120 V and 220/240 V at 50/60 Hz.

In short, Lotos plasma cutter incorporated with IGBT/MOSFET based HF inverter gives a precise and consistent current to your cutting material or surface. You can confidently grab one for you. 

Pros

  • HF non-touch start cutter
  • Ideal for both DIY users and Professionals
  • Easy to use and cost-effective
  • Range of output current is 10 to 50 amperes
  • 13 feet of torch lead
  • Gives maximum cut of ¾”
  • An input voltage of 110/120 and 220/240 V

Cons

  • Gives a maximum clean cut of only ½ “.
  • A one-year warranty is too less.

2. PrimeWeld CUT50D Air Inverter Plasma Cutter

The next one on my list is the CUT50D plasma cutter by PrimeWeld which is specifically designed to withstand extensive use in construction, fabrication and rugged industrial heavy-duty jobs. Also, it works quite well for home projects and DIYs too.

This amazing cutter comprises 50 amperes dual voltage of 110 and 220 V AC. Further, this digital inverter plasma cutter is much cost-effective as compared to Oxy-Acetylene after a few cuts only.

Another notable attribute of this portable cutter is its low maintenance. To lessen your overall work with a bonus of clean cuts, this device involves less fire hazard, less cleaning and so on.

Now coming to the materials it can cut, this high-frequency DC Plasma smoothly cuts the thicker materials. Also, it can cut swiftly with minimum distortions than the standard DC plasma cutters.

In order to tackle thick materials, the design of this device is based on MOSFET transistors. These transistors provide high power output which is extremely useful for cutting thick metals. Besides, these also give a steady output which works well for thin metals.

The package includes a plasma cutting torch, 6’8” long air filter, 6 air hose connections, 9’9” long, 3 prong ground clamp and a cable, 2 couplers air hose, 4 clamps etc. Above all these accessories, PrimeWeld backs up this device with a 3-year warranty.

In short, this plasma welder by PrimeWeld has dual voltage compatibility. Also, it is portable enough to enable easy cuts onto your metals or other materials.

Pros

  • Works well for both thin and thick metals
  • Portable and compact
  • Weighs around 25 pounds
  • An input voltage of 110/120 and 220/240 V
  • 14 feet torch lead
  • HF non-touch start

Cons

  • Provides maximum clean cut of ½ inches
  • It may require 30 A breaker

3. Ramsond CUT 50DX Portable Air Plasma Cutter

The next in my box is a portable plasma cutter by Ramsond. The CUT 50DX cutter is a 4th generation device comprising 50 A, dual voltage of 110 V and 220 V and operates at a dual-frequency of 50 and 60 Hertz.

This inverter technology high-frequency plasma cutter features a digital amp display. Also, there is an integrated pressure gauge installed in the front panel of the device.

Since this is an upgraded version so this model comes with a fully insulated foldable handle. Further, to keep it cool and prevent overheating, this cutter uses a german nade cooling system.

This upgraded version is incorporated with PWM (Pulse Width Modulation) and HF inverter technology using V-MOSFETs. This combination gives a more concentrated and precise current stream to the cutting surface which delivers uniform and a cleaner cut.

All these advancements have minimized the overall size and weight of this plasma cutter. Moreover, this cutter is capable of cutting a wide range of materials and surfaces. So both newbies and experts can easily try their hands on this machine.

The wide variety of materials which it can cut includes, carbon steel, stainless steel, aluminum, alloy steel, brass, copper and many other conductive materials.

In short, this plasma cutter is a great choice for cutting various materials and surfaces with precision and concentration. It can cut without distortions and minimal heat input.

Pros

  • Output current range: 20 to 50 amps
  • A maximum cut of ¾ inches
  • Dual voltage converter
  • Weighs around 19 pounds
  • Input voltage range: 110/120 and 220/240 V
  • A duty cycle of 60% at 50 A

Cons

  • Its cuts are not very clean
  • The ground clamp gives a light grip

4. LOTOS LT5000D 50A Air Inverter Plasma Cutter

Lotos is quite a famous brand for its welding, manufacturing and fabrication machinery. LT5000D plasma cutter is another marvel by Lotos which is features-loaded and is capable of handling any challenge you throw towards it.

This is an air plasma cutter which utilizes non-hazardous compressed air. It makes it capable of cutting materials such as aluminum, alloy steel, stainless steel, copper, mild steel and so on.

This economic and safe plasma cutter is compact in design and comes with a handle for enhanced portability. Besides, for increased durability, high performance and stability, this cutter has an advanced cooling system which keeps the machine cool even after long usage.

Not only this, it hardly takes any time to get installed. The pre-installed air filter regulator and NPT ¼ inches industry type D plug enables it for an instant connection to your air compressor.

Coming to some more details, this cutter features 10 to 50 A DC output which gives ½ inches clean-cut and ¾ inches maximum severance cut when operated under 220/240 V. Also, 10 to 35 A DC output which provides ⅓ inches of clean-cut and ⅖ inches maximum severance cut under 110/120 V.

The package comprises plasma cutting torch, power supply, pre-installed NPT ¼ inches industry type D plug, ground clamp, consumables, air filter regulator, and a user-friendly instruction manual and so on.

Pros

  • Automatic dual voltage and dual frequency
  • Equipped with a cooling system
  • Air plasma cutter
  • Instant installation
  • Ground cable and clamp
  • Backed up with a 1-year warranty

Cons

  • It is suitable for heavy-duty use.

5. SUNGOLDPOWER IGBT CUT50 Portable Plasma Cutter 

This plasma cutter by Sungoldpower is incorporated with IGBT technology which makes it much more stable than a MOSFET device. This cutter operates on a dual voltage of 110 V and 220 V that makes it suitable for wide applications.

This air plasma cutter also works on dual-frequency which makes it run directly on 110 V 50/60 Hz or on 220 V 50/60 Hz. Further, it features an LCD display which makes it easy to read the current settings.

Regardless of a beginner or a professional, you get ample of adjustable settings to meet your various material demands. You can adjust the cutting current as per the type and thickness of the working material.

The output current ranges from 10 to 50 amperes and it works great on it. However, if you go beyond 35 amperes, it may not produce clean and precise cuts.

Sungoldpower CUT50 utilizes non-hazardous compressed air to cut. It is capable of cutting materials such as iron, stainless steel, aluminum, copper and other metal surfaces.

The box comprises a CUT50 IGBT machine with digital display, gas hose, air regulator, hose clamp, 10 ft ground clamp, 13ft plasma cutting torch, 2 sets cutter consumables etc.

In short, Sungoldpower Cut50 is a versatile, modern and efficient device which is installed with an LCD display. It is suitable for cutting a variety of metals by producing minimal slag. You can consider this machine on your list.

Pros

  • Weighs around 23.9 pounds
  • Output current range 10 to 50 amperes
  • Duty cycle 60% at 50 A
  • Input voltage 110 -220 Volts
  • Comes with a digital LCD display
  • Smooth and high cutting speed

Cons

  • It can give a maximum clean cut up to ½ inch only.
  • You may be disappointed with the low-quality components.

How to Choose the Best Plasma Cutters in 2021

Duty Cycle

It is the duration for which a machine works before it gets hot and needs to cool down. If you want a cutter which can run for a longer period than go for high amperage output. It will give a decent duty cycle.

Besides duration, check the type and thickness of the material you are going to weld. You have to be a little futuristic about the range of projects you are going to handle.

Cutting Speed

The cutting speed of a plasma cutter is determined by the thickness of your metal. For your quick knowledge, there are broadly 3 cutting parameters: rated cuts, severe cuts and the quality cuts.

If your cutter has a good rated quality cut, it may take some time to cut through thick metals. Further, the cutter with a decent rated cut efficiently cuts medium to thick steel at an optimal cutting speed. 

If a plasma cutter has a good severe cut rating then it can cut quite a thick metal but the cutting speed will be significantly low. Therefore, I would suggest you understand these 3 cutting standards carefully then make the final move.

Air Supply

The air supply implies the air used as an input to the plasma cutter to carry out the cutting process. The traditional or handheld cutters use air as the supply. However, experts or professionals prefer to use bottled nitrogen for cutting. The reason is that bottled air is much more expensive than bottled nitrogen.

Not only this, as the nitrogen is drier in nature so it produces less oxidation than that of compressed air. As the advancements are happening, the modern cutters are equipped with built-in air compressors which eliminate the use of bottled gas.

Start

It is basically the step to initiate a welding arc. So typically there are two types of starters namely: Contact start and High-frequency start.

The non-pilot arc is incorporated with a contact start which means you have to touch the torch tip to the metal surface to make a cut. The downside of this type of start is that it largely affects the life of the consumables.

Whereas, in the pilot arc, you can freely make a cut with the plasma torch without touching the tip of the torch to the metal surface. This arrangement delivers smoother cuts and it doesn’t affect the life of the consumables.

Coming to the high-frequency start, it is a little risky because of its sensitivity. You cannot keep any kind of electronic or even electrical device near it. Also, while operating it may create interference with the settings or control of such devices.

Finally, in contact start, you don’t face such problems of interference. Moreover, the pilot arc which is initiated by contact start increases visibility and precision as you can easily see the arc and location of the tip.

Types of Plasma Cutters

1. Conventional or Manual Plasma Cutters

The traditional plasma cutters use air nitrogen or oxygen for cutting materials. The main attraction of these cutters is that these give quality cuts and are much more cost-effective than the High definition plasma cutters. 

Generally, the operating voltage of these manual plasma cutters lies somewhere between 65 amperes to 200 amperes. Further, they are mostly used for cutting mild steel and that too on a certain angle.

Besides these attributes, conventional cutters are much preferred for medium manufacturing jobs and for home garage fabrications. You can easily use them for simple cuts but may not use them for delicate projects comprising edges.

2. High Definition Plasma Cutters

The high definition plasma cutters use a mixture of gases to make a cut and have smaller nozzles than the manual plasma cutters. The smaller nozzle produces a narrow stream of plasma to make intricate cuts.

One of the gases from the blend protects the plasma steam and keeps it directly on the material. Therefore, the quality and the finishing through these cutters give a professional look. Such cutters are used by experts for delicate and high standards projects.

One crazy attribute of these cutters is that they have a duty cycle which can run for approximately 24 hours a day.

Summing it Up

The Lotos LTP5000D gracefully topped my list of best plasma welders. This feature-loaded cutter is incorporated with a non-touch pilot arc which can easily cut through any painted, rough and rusty surfaces.

If I conclude then this cutter is a portable device which uses non-hazardous compressed air to operate and delivers a high-quality cut to give your work a professional finish. I have listed my best 5 machines, you may match your needs and get the best one for yourself.

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Josh Miller

Josh Miller

Hey there, I’m Josh Miller. I teach my readers how to master the skill of welding effortlessly and how to meticulously fuse the workpiece together. Follow my guides to make welding fun & easy for you. Thanks!