XSD series sand washing machine impeller is used with the sand making a kind of wheeled sand washing equipment, is the completion of sand, natural sand sorting operation important equipment, it can wash away the sand making a mixed sand trace powder and impurities, improving the quality of the sand. This series sand washing machine using advanced technology, combined with the actual situation of the development of sand and gravel industry, mainly for construction sites, gravel plants, hydroelectric plants precast concrete, glass quartz sand and oil sand backfill pressure washing, grading and dehydration. A simple structure, the impeller drive bearing unit with water and by water material isolated to avoid bearing due to flooding, sand and pollutants cause damage, greatly reducing the failure rate; 2, sand washing process, the less the loss of sand and stone powder, The building sand gradation and fineness modulus wash meet the standard requirements. 3, clean and high processing capacity, power consumption, long service life.