1.The dredger could be divided into bucket type and pump suction type. Bucket type dredger is applied for waterways with high percentage of clay and gravels, while pump suction type can only be used for terrains with low percentage of clay and gravel. 2.Iron ore need to be retrieved firstly by magnetic separator if the percentage is high in the raw ore, then gold, diamond,zirconium will be concentrated. 3.The key part for the diamond dredger is pulsating jigger. The deal capacity decide the quantity of jigger. We learn the jigger’s technology from one engineer of South Africa. Now the diamond dredger is widely used in Africa.

Jet Suction Dredgers, leveraging their flexibility, mobility, and user-friendly operation, perform effectively in specific scenarios. Placer Gold Mining: Used in small-to-medium-scale placer gold deposits such as inland rivers, ancient channels, tidal flats, and drylands. The equipment is modular and portable, making it suitable for mobile operations in remote areas with poor accessibility. Dredging and Desilting: Applied in water bodies like rivers, ports, lakes, and reservoirs for dredging and desilting. High-pressure water jets cut and break up silt, while slurry pumps suction the sediment mixture, achieving efficient dredging. The compact design of the dredger makes it ideal for narrow or shallow waters. Sand Mining and Reclamation: Utilized for sand extraction from rivers and lakes, as well as land reclamation and sand-filling projects. It extracts sand and gravel from underwater for use as construction materials or in filling engineering projects, characterized by low investment and operational costs.

1. Good engine brand: China Chongqing Cummins 2. Sand pump: Shijiazhuang Kingda or industrial pump 3. Coupler: CNPC Jichai Power 4. Hydraulic Valve: Yuken,Japan The Cutter Suction Dredger of steel construction , the non self-propelled, dismountable type, is able to berth and dredge at any waters both in the coastal area and inland rivers. It can also be designed to self-propelled according to customers’ requirement.