river digging machine,small sand digging machine,dredging vessel,dredging machine.river digging machinery,sand digging dredger. 1. ... by the hydraulic cylinder.2. Specifications for river digging machine Qingzhou Haiyang Ore Machinery Manufacturing Co., Ltd.Specifications for ... h Water flow 3500 m3/h Main engine power 1000kw 3. Spares and images for for cutter head dredge 4000m3/h river digging machine ...