Ducted Rudder Propeller

　　The company specializes in the design and production of large, medium and small fixed-pitch marine propellers, controllable pitch propeller components (adjustable propeller blades, propeller hubs, oil cylinders), copper sleeves, various copper alloy castings, shafting, rudder systems and other marine supporting products. It can cast propellers with a diameter of less than 8M, copper sleeves with a diameter of 2M and a length of 4 meters, supporting sealing devices, shaft and rudder processing, etc. The total annual copper castings are 1,000 tons, and the annual output of large-scale ship shaft and rudder processing is about 50 sets. A propeller boat is powered by a propeller. Propellers are divided into fixed-pitch propellers and controllable-pitch propellers. The principle is that the ship obtains a recoil force by the rotation of the propeller. The source power can be diesel engine, steam turbine, gas turbine, nuclear power, or hybrid power. In fact, the propeller is only a kind of ship propeller, in addition to the water jet propulsion.