We could say that CNC is an electronic driver of the Cutting System based on the configurations by the user and the profiles of the parts to be worked on fed into the system before the beginning of the job. Making use of built-in electronic and software automation, CNC can control the cutting process calculating all available parameters, both the ones determined by the Cutting code (G-Code) fed into it beforehand and the real-time cutting data provided by the relevant sensors. It adjusts the proper gas mixture and velocity, the feed rate and the torch movement along the three axes, and the power of the Source. The cutting process is automatically continuously adjusted in the best way, much better than by the most experienced operator.

Plasma cutting is a process that is used to cut steel and other metals of different thicknesses (or sometimes other materials) using a plasma torch. In this process, an inert gas (in some units, compressed air) is blown at high speed out of a nozzle; at the same time an electrical arc is formed through that gas from the nozzle to the surface being cut, turning some of that gas to plasma. The plasma is sufficiently hot to melt the metal being cut and moves sufficiently fast to blow molten metal away from the cut.