This series of sand washing machine has reasonable structure, large capacity, power consumption is small, sand loss less during sand washing process, especially the sand washing machine’s transmission parts isolate to water and sand, so the failure rate significantly lower than the current commonly used sand washing machine. They are widely used in the washing of the material.,such as sandstone plant, mining, building materials, transportation, chemical industry, water conservancy and hydroelectric power, concrete mixing stations and other industries etc.