The new-generation universal plasma devices enable high productiveness and optimum-quality (also fine) cutting of various metals. They were developed for cutting construction steel with oxygen and for cutting high-alloy steel and aluminium with cutting gases argon Ar/ hydrogen H2/nitrogen N2 and their mixtures. In using compressed air, they may also be deployed for classic construction steel cutting by means of air. New-generation inverter power sources allow a broad span of electric current regulation forcutting, which makes the devices suitable for plasma marking as well.