The rotary bar screen cleaner is a specialized water treatment device capable of continuously and automatically intercepting and removing various debris in fluid. It finds wide application in urban sewage treatment, particularly effective in removing fibrous garbage from dyeing and printing wastewater. It is also utilized in industries such as the water supply sector, power plants' inlet water, and serves as a preliminary screening device in wastewater treatment processes for textile, food processing, papermaking, leather, and other industries. It is considered one of the most advanced solid-liquid screening devices in China.