HID Cutter Suction Dredgers Empower Ecological Restoration of the Old Yellow River Channel
At the desilting sites of Wutun and Linqi Reservoirs in Shangqiu, Henan Province, multiple HID cutter suction dredgers manufactured by Shandong Haohai Dredging Equipment Co., Ltd. are operating at full capacity, playing a crucial role in the Yellow River Old Channel Water Ecological Restoration Project.
Silt and sand from the reservoir beds are transported via pipelines to sediment disposal areas located one kilometer away. Upon completion, the project will increase the total reservoir capacity by 51.4 million cubic meters, enabling an annual regulation of 260 million cubic meters of diverted Yellow River water. This will effectively support the water supply needs—113 million cubic meters—of Shangqiu City and Minquan County for domestic and industrial use, as well as irrigation demand across 2.037 million mu (approximately 135,800 hectares) of farmland.
The project posed significant challenges due to a thick, hardened yellow clay layer on the reservoir floor. Among the 16 dredgers deployed across various sections, many were unable to operate efficiently due to insufficient cutter power, which hindered construction progress.
As the main contractor, Shanghai Tenglin Construction Technology conducted thorough market research and selected Shandong Haohai Dredging Equipment Co., Ltd. as the equipment provider. Under the leadership of Chairman Wang Yongsheng and HID’s engineering team, a tailored solution was developed: the HID-CSD5522 heavy-duty cutter suction dredger, featuring the largest cutter power in its class in China and a capacity of 4,000 m³/h.
This customized solution received strong endorsement from the leadership of Shanghai Tenglin, resulting in a successful collaboration.
To date, the dredgers have performed exceptionally well, achieving an output of approximately 20,000 m³ per day, earning high praise from the client.
HID’s outstanding vessels are making a meaningful contribution to the ecological restoration of the Yellow River Old Channel, further demonstrating the company’s engineering expertise and commitment to national water management projects.
