Weihua Group Developed the First China Large-scale Dedging Machine Passed the Acceptance The good news came from Beijing, lasted ten months, our company successfully developed the large intelligent Grab Dredger which weighed 570 ton, accepted and unanimously adopted by five experts of the State Ministry of Science. End the history of China without the ability to independent research the large-scale dredging machine. The dredger machine was the national "863" plan, the national key scientific and technological projects. This project through pre-market research, market forecasting, program development, expert assessment phases, began manufacturing in June last year. It was reported that the aircraft was adopted the control dig level, underwater mining visualization, ultra-high-power variable frequency drive control and other 16 advanced technologies, and three of them reached the domestic leading technology. After assembling the Grab Dredger machine matches with the vessel, it can be used for river dredging and mining debris before laying submarine cables etc. The dredger's maximum rope pull is 70 tons, the maximum dive depth is 60 meters, can dredge 18 cubic meters of stone for one times.