buyer The machine can handle 80 cubic metersof sand per hour. Sandy has a net sand under 30-80 cubic meters per hour, underwater excavation depths : large dredging ships 13 meters.   General dredging vessel 4-8 meters in height, is equipped with regular diesel 1100,1110, and the gasoline 2.5kg/ hours, two staff people. Only RMB 100 yuan daily wage workers. Screening for separation products with the single, two-storey, the stone sand, mud, sand and weeds alike. Separation is sent through the conveyor system. Transportation divided into two parts-transmission, two single-carrier. Both sand and impurities can be separated. Transmission distance of 10-20 meters of sand and impurities transmission distance of 6-16 meters.