This type of jet suction dredger is widely used in reservoir, artificial lake, river and port dredging & reclamation. The main parts of jet suction dredger is high pressure water pump and sand suction pump. One high pressure water pump will output large clear water and then clear water through the high pressure water gun flushes the river bed soil layers. Then the sludge will be sucked by the suction pipe and sand suction pump. The whole work process contains water jet and sand suction. This dredger is equipped with jigger.Its main function is used to dredge sand, select gold or diamond.