Thyristor Controlled Air Plasma Cutting Machine has lamp that indicates oven heat, lack phase, air pressure, short circuit, poor connection and thyristor occurs. The Machine has built in cup-sensing circuit that ensures safety for the replacement of tip and electrodes. The Machine has user friendly design with built in safety mechanism. The Machine is designed with warming lamp that indicates oven heat, lack phase, air pressure, short circuit, poor connection and thyristor occurs. The Machine has the feature of less electromagnetic disturbance without high frequency that improves cutting line, torch and consumable life. The Machine has 35 mm maximum cutting capacity, 2 hp air compressor, 6 metre air cut torch, 102 kg net weight and 60% rated duty cycle. The Thyristor Controlled Air Plasma Cutting Machine has rated input power of 20 kva, 3 phases, rated output current of 70 amp and rated output volt of 108 v.