The domestic techniques all adopt the oil-immersed film capacitors,Website:http://www.heatking-induction.com, which will cause problems of overheating under high frequency (heating of capacitor shell, heating of lead terminal), and if it works in a long period, the capacitor will be damaged early. The foreign super-small volume capacitor recommended by our company will greatly increase the reliability of the machine, and meanwhile reduce the difficulty of field installation and maintenance. If there is size limitation in the loaded installation site of the users, our company can package the hardening transformer and the capacitor together, which will not only reduce the demanded installing space and is convenient to connect lines, but also will reduce the line loss of the resonance tank circuit.