Introduction The efficient sand washing machine of XSD series, which are developed on the basis of introducing foreign outstanding technology of the same kind of products, is a kind of cleaning equipment of international advanced level for sand and slag pellets. Application It is widely used for cleaning materials in the following industries: quarry, minerals, building materials, transportation, chemical industry, water conservation and hydropower, cement mixture station and so on. Working Principle Driven by electric motor and decelerator, the impeller in the water groove moves in a circle, thus make the sand or slag pellets mixed, overturned, cleaned and discharged in the water groove