Mud Cleaner is the second class and the third class solids control equipment which is the newest type to treat the drilling fluid. At the same time Mud cleaner has the higher cleaning function compared with separated desander and desilter. In addition to the reasonable design process, it equals another shale shaker. TR mud cleaner structure is compact, it occupys small space and the function is powerful. Mud cleaner is the ideal device of the second class and the third class solid control to treat the drilling mud.