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.

Bucket-chain gold dredgers are suitable for placer gold mining in rivers and waterways; they can be used for placer gold mining in lakes and coastal shallows; and they are employed for the re-processing of historical tailings or old mining areas to extract residual gold particles. The dredger is composed of several gravity concentrators.The concentration ratio could reach as high as 1:1000,and the recovery efficiency about 90% after series of separating.

The Gold and Diamond Washing Plants could be used to mine gold mixed with sand in palaeouchannel, palaeo-riverbed, alluvial placer, tailing after ball milling, and diamond and zirconium in raw ore. 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, or the effectiveness will be affected. This set of mining equipment are composed of several gravity concentrators. The concentration ratio could reach as high as 1:1000, and the recovery efficiency about 90% after series of separation.

Could be used to mine gold and diamond mixed with sand in palaeochannel, palaeo-riverbed, alluvial placer, tailing after ball milling, and diamond and zircnium in raw ore.

Diamond washing plant is one of the most widely used sand diamond washing equipment, suitable for modern mechanized production,high work efficiency, modular design is easy for installation and debugging to adapt to different sand and gold diamond ore deposits.The main structure is divided into feeding system, cleaning and screening system, collection and recovery system.

land mining machinery can suitable different working condition . it is can designed fixed and removalbe type . it is widely used for land gold .diamond and iron powder so on . mormally high quality gaitation chute and fixed chute are used for the glod . in the method can reach the 98% collcetion percentage . jigger machinery and centrifuge machinery is used for diamond . meantine our machinery can equipped other mining machinery for the other mining in the metal.