Stone washing machine, also known as sand washing machine (or sand washing machine), is used for desilting and screening of sand and gravel in construction sites, sand and gravel plants, prefabrication plants, and water and electricity construction sites. It can also be used as a machine for ore sorting operations. Stone washing machines can be roughly divided into spiral stone washing machines, drum stone washing machines, water wheel stone washing machines, vibrating stone washing machines, bucket stone washing machines, and cylindrical stone washing machines. The stone washing machine is designed to clean the sand and stones produced by sand excavation and mining, mainly using water for cleaning. The sand and gravel extracted from the riverbed or rock layers still contain impurities, which need to be washed with water to separate the soil and gravel in the sand and gravel, in order to achieve purification. The mixture is transported to the compartment of the stone washing machine, and then subjected to rolling, vibration, and other movements according to the technical settings of the compartment. High pressure is used to spray water for washing, and the washed soil or sand is removed through water holes and dried.