For the first time in the world, compressed air flow and pressure can be checked and adjusted on a touch screen, enabling more stable plasma beam generation. In addition, a vision system for checking plasma beam status is available as an option, so multi-nozzle can be effectively managed, and basically, the plasma beam can be identified through a temperature sensor. The specially designed carbon brush gives a replacement signal when it reaches the wear limit, and when it needs to be worked in a clean environment, it can minimize dust generated by applying a special energizing bearing. It is also possible to detect rpm using a laser and magnetic sensor.