Self- Cleaning Type Surface Aerator is used for aerating and mixing variable water surfaces such as the lagoons and the ponds which are used for aquaculture. The Surface Aerator also finds application in the transfer of oxygen to the industrial effluents and to the sewage. The Surface Aerator is available in high and low speeds and can be used for mounting and floating the conventional bridges. Self- Cleaning Type Surface Aerator is designed with low reaction forces that facilitate ease of operation.