... 1,Capacity;600-25000 m3/h 2,Head;20-85 m 3,Outlet diameter;200-1000 mm 4,Max ... – cutter suction dredges of 80m3/h,100 m3/h,120 m3/h,200 m3/h, bucket-wheel and cutter suction dredges ... of 350 m3/h, cutter suction dredges of 500 m3/h ... in a trailing suction hopper dredger of 13500 m3/h for Shanghai Navigation Bureau. Definition of models;500 ...