Qingzhou Guanshan Machinery Co., Ltd. is a manufacturer of stone washing machines, stone washing equipment, and various stone washing machinery, including vibration stone washers and drum stone washers. Since its establishment, the company has evolved into an integrated manufacturer specializing in research and development, mechanical design, production, installation, and after-sales service. Our main products include sand mining boats, sand extraction boats, gold panning equipment, large-scale dredging and sand (mud) extraction boats with绞刀, dump trucks for sand transportation, large, medium, and small iron sand extraction boats, dual-purpose automatic dredging boats for land and water, water selection and dry selection iron sand extraction systems, sand screening machines, auger sand washing machines, stone washing machines, and sand mountain crushing and cleaning machines, among others. We offer over 80 specifications for customer selection and design and manufacture customized products based on the customer's geographical environment. Our sand mining equipment simultaneously completes processes such as screening, extraction, separation, cleaning, and classification, producing qualified products in one go.