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Plasma Cutter vs Welder – What’s the Difference

Plasma Cutter vs Welder

If you’re planning to take up welding as a hobby or profession, it’s important to understand the differences between two popular tools – the plasma cutter and the welder. Both are used to cut and join metal but offer very different results. Let’s break down the differences between these two tools.

Plasma Cutters Work

Plasma cutters are used for cutting through thicker pieces of metal, up to 1 inch in thickness. They use an electrical current which is forced through a gas (often nitrogen, oxygen, or argon) which is then directed through an electrode. This creates an arc which is then forced through a nozzle attached to the electrode. The result is an extremely hot stream of air (up to 20,000 degrees) which can cut through most types of metal quickly and cleanly. It’s important to note that plasma cutters do not create any heat on the surface being cut; instead, they only produce heat inside the gas stream itself. This makes them ideal for cutting thick pieces of metal without creating too much heat in the surrounding area.

Welders Work

Welders work by producing enough heat and pressure to melt two separate pieces of metal together. This process creates a strong bond between the metals that are being welded, allowing them to become one solid piece. Welders come in wide varieties depending on what type of material you plan on working with – stick welders, MIG welders, TIG welders – but all operate under the same basic principles; generate heat and pressure at high temperatures in order to melt two pieces together into one solid unit. Unlike plasma cutters, they require more skill in order to create proper joints that will last over time.

Difference Between Plasma Cutter and Welder

  • A plasma cutter is a tool that uses a high-voltage arc to cut through metal.
  • A welder, on the other hand, uses heat to join two pieces of metal together.
  • Plasma cutters are generally more precise than welders, making them ideal for cutting thin sheets of metal or for cutting intricate shapes.
  • Welders, on the other hand, are better suited for joining thicker pieces of metal together.
  • Plasma cutters are also faster than welders, which can be important when time is a factor.
  • Finally, plasma cutters are less likely to cause warping or distortion in the metal than welders.


Plasma cutters and welders both have their own advantages when it comes to cutting or joining metals together; however, when it comes down to it, each tool serves its own purpose – plasma cutters for quick clean cuts on thicker pieces of metal while welding provides stronger connections for thinner metals or intricate projects such as sculpting or decorating objects out of metal. Therefore if you are planning on becoming a professional welder or just taking up welding as a hobby, make sure you know your way around both tools before getting started!

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