Dredgers mainly handle soft materials such as silt and silt, which usually contain high moisture and viscosity. The sand dredger mainly deals with hard substances such as sand and soil, which are relatively dry and loose. There are significant differences between sand dredgers and dredgers in terms of ship type design, working principles, applicable scenarios, and operating objects. These differences make them play irreplaceable roles in specific engineering fields.

With the continuous progress of technology and the increasing demand for environmental protection, dredgers are also constantly developing towards intelligence and environmental protection. Future dredgers will pay more attention to energy conservation, emission reduction, and ecological protection, adopting more efficient and environmentally friendly excavation technologies and treatment equipment. Meanwhile, with the continuous application of technologies such as artificial intelligence and big data, the intelligence level of dredgers will also continue to improve, achieving more precise and efficient operations.