bucket chain sand dredge bucket dredgers bucket sand dredger bucket dredge bucket dredging with hopper 1bucket chain sand dredge 1.Working load: out put of mixture of sand, stone, water and mud in one hour2. Discharge distance: which refers to the distance from the center of working site, to the destination where you want the sand or mud conveys to. For example, dredging sand or mud in the river, ...