LGK inverter air plasma cutter features and usage: 1. advanced soft-switching technology wich settles the problems of IGBT failure 2. HF arc-starting, easy to strike 3. cut opening in order, smooth, the effect is good 4.self lock and manual lock function, easy to use 5.high power factor, energy-saving, small size, light weight, easy to move 6. intelligent control of the fan, lower loss, lower fan failure rate 7. widely application for cutting lower barbon steel, stainless steel, aluminum and other-ferous metals etc