... suction system, sliding gear, deck cranes and so on. The dredger we produce is self-propelled or non self-propelled,portable ... produce certain amount of vacuum by the centrifugal pump. The dredge pump is driven by the main diesel engine ... such as : cutter suction dredger , bucket chain dredger , underwater pump dredger , self- propelled dredger , gold panning dredger , iron extracting dredger, iron ...