Cutting steel with an air plasma is two processes, exothermic oxidation of the steel (like an oxy-fuel torch) combined with the high temperature thermal (melting) process of the 25,000 degree plasma jet. Steel cuts best with an air plasma.
Cutting stainless is single part: Thermal cutting. In order to get the edge angularity as good as possible and to minimize edge roughness...the torch needs to run close and fast. To do the best job on thin stainless you need a highly responsive height control, FineCut consumables and a machine that has excellent acceleration and high cutting speeds.
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