Compressed air plasma cutting system with high frequency HF striking of pilot arc. Allows a rapid, distortion-proof cutting of all conductive materials such as steel, stainless steel, galvanised steel, aluminium, copper, brass, etc. Possibility to use long nozzles. Characteristics: 2 positions for regulation of cutting current * control devices for torch under voltage, air pressure, torch short circuit, phase failure, thermostatic protection * possibility to cut on grids with automatic restart of pilot arc (self restart) * visualization of air pressure. Complete with torch.