The subject of this paper is centrifugal cleaners. Basically, the centrifugal cleaner works to bring the fluid into rotational motion so that the centrifugal force greatly accelerates the separation of mixed liquids and particles of different density. Today due to a reduction in the cost of shipboard exploitation, heavy ship fuels are used, which contain various impurities that can cause various failures and make handling difficult with fuel. The purpose of this paper is to show how the centrifugal cleaners work and its importance in daily application on board. This paper is divided into six chapters. The first chapter is an introductory chapter that speaks in general about centrifugal cleaners. Second and third describe his principle of work, and the development of history to this day. The chapter Four describes the division of centrifugal cleaners and parts thereof. While the fifth and sixth chapters describe the two most famous types of centrifugal cleaners.