In order to meet market demand, improve processing efficiency of micro-spray EDM of the control valve, develop a control valve orifice EDM machine equipped with double-station processing capability. 1. The inverted cone mechanism can process holes of various specifications and shapes to meet the requirements of the high-end control valve for the hole shape; 2. Perfect combination of high frequency vibration and micro electric discharging technogy improves the quality and efficiency of the micro-hole machining process. 3. Unique wire feeding and withdrawing structure achieves self compensating and automatic trimming of electrode wire, and guarantees the precision and conformity of holes. 4. With double-station setup and two separate EDM unit, it is capable of machinig two products of different specification. Occupying less floor space and improving the efficiency.