The development of the servo hydraulic dry ice machine has the advantages of energy saving,high efficiency, low nosie and so on. Energy saving effect can be reduced by 40%; the production efficiency can be increased by 30% compared with the ordinary dry ice machine adopts the servo motor and drive; domestic military enterprises; germany pump with low noise internal gear pump, suitable for the characteristics of high pressure, high speed operation ,improve produce efficiency .motor running at a lower speed ,reduce energy.