Model KYDH204Waste Oil Cenrifuge is mainly used to remove water and mechanical impurities from diesel oil, lubricating oil and other mineral oil in marine diesel engine unit and land-used diesel generator unit of power station so as to reduce wear of the diesel engine and other machine, and prolong engine life. The model is also used to separate two unsolvable liquids with different specific gravity or remove small amount of solid particle from liquid. The machine has the advantages of high efficiency, low oil consumption, convenient operation and economicmaintenance cost. The clear oil and dirty water are let out freely, the sludge is discharged manually. The machine is one kind of rotary machine with high speed, After accurate dynamic balancing, it can run for long time with low vibration, safety and security.