Works air plasma cutting machine from the structure include: the main loop, the control loop and three gas path parts. (1) comprises a main circuit contactor KM, three-phase transformer B1, three-phase bridge rectifier (by D1 ~ D6, C1 ~ C6 composition), the high-frequency oscillator (by B2, B4, FP, C12 composition). (2) the control back to the routing control transformer B3 and J1, J2, J3, D7, C11, R3 and other components. (3) pneumatic solenoid valves in part by decompression and DF components. The principle is summarized as follows: connect the power and gas supply after closing the switch K1 CNC laser cutting machine, the power indicator light XD cooling fan FM rotation immediately. Press the torch micro switch K3 CNC cutting machine maintenance, relay J1 was electric action and its normally open contact connected, the solenoid valve DF action, gas supply is turned on CNC cutting machine, cutting torch pre-ventilation. Plasma arc cutting is a high temperature by the heat of the plasma arc so that the metal workpieces at the incision melted locally (and evaporation), and by the high velocity plasma momentum exclude the molten metal to form a processing method incision. Digital is a method for cutting sheet metal cutting program control automatic cutting equipment, which under the control of industrial computer, using a gas flame or plasma arc for cutting source, can plate in mild steel, aluminum, copper and other metals on cutting any graphics. CNC laser cutting machine, jade-NC (certified), Tongchuan CNC cutting machine provided by the Zhengzhou-NC Jade Products Limited. Zhengzhou Yu-NC Products Ltd. (www.yuxingsk.cn) is Zhengzhou, EDM, wire cutting leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Yu-NC leadership with the staff warmly welcome all inquiries negotiations to create jade-NC a better future.