3D working video for Yongsheng siphon sand jet pumping dredger Yongsheng dredger, original factory for dredger with its own R&D department and workshop 1. 8 inch to 20 inch siphon sand jet pumping dredger can be produced; 2. Maximum dredging depth 35 meters under water; 3. Discharging distance can be 2 KM; 4. Pump station can be connected for more distance; 5. Cutter head is changeable with suction pipe for hard clay or soil when dredging; 6. Custom building is accepted. Any interested pls advise Yongsheng dredger +86 139 5366 2777 yongshengdredger@machineys.com Shandong Yongsheng Dredging Machinery Equipment Co., Ltd. Providing best solution for dredging