You’ll find that a CNC plasma cutter can come in a variety of sizes but they all work the same: (1) send pressurized nitrogen, oxygen or argon through a channel, (2) apply electricity to a negatively charged electrode, (3) touch the metal and create a full circuit. The minute the circuit is created, a high powered spark travels though the channel and then heats the gas to 15,000 Celsius – creating plasma.
Plasma generates electric current and it’s what keeps the power supply running. That is until the circuit is broken. As long as a circuit is maintained, you can cut to your heart’s content. Its nozzle continues to create a flow of gas with different channels, all in an effort to make an even cut. A CNC Plasma Cutter by Miller is one of the best in the industry for doing the toughest jobs.