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Used Plasma Cutters For Sale

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Plasma machines create an electronic channel through a gas that is passing through a constricted opening inside the torch.  An electric arc is generated from the external power supply and that is when the gas is introduced. This forms a “plasma jet” that can reach temperatures of up to 40,000 F.  Plasma machines can use a variety of gases, including oxygen, nitrogen and combinations of argon/hydrogen/nitrogen.

What are the plasma machine components?

  • Plasma torch-  This component provides proper alignment and cooling of the consumables.  The main consumable parts that are required for plasma generation is the swirl ring, nozzle and electrode.  If you would like to improve cutting quality, you can use a shielding cap.    
  • Arc Starting Console-  The arc starting console circuit produces an AC voltage of about five thousand VAC at 2 MHz.  This produces the spark inside of the plasma torch to create the plasma arc.
  • Power Supply-  The power supply converts single or three phase AC line voltage into a smooth, constant DC voltage.  The DC voltage maintains the plasma arc throughout the cutting process.

There are conventional plasmas and precision plasmas:

Conventional-  A conventional plasma system will use shop air as the plasma gas.  The shape of the plasma arc is defined by the orifice of the nozzle.  All of the handheld systems utilize conventional plasma.

Precision-  A precision plasma system has a high current density and is designed to produce the sharpest quality cuts.  Multiple gases are used as the plasma gas such as oxygen, nitrogen, and a hydrogen/nitrogen/argon combination.

Revelation Machinery can always help you find what you need!  If you have any questions about plasma machines or need to find a specific brand/type, please feel free to contact us!  If you need to sell your used plasma machines, do so here.