Lower-speed Centrifugal Machine is mainly used to separate suspension of solid particles and liquid; Or emulsion in the two kinds of different density and mutual miscibility of liquid separation (such as isolated from milk cream); It can also be used to eliminate wet solid in the liquid, such as use washing machine to jilt dry wet clothes; Special speed tubular can separate different density of gas mixture, such as enrichment and separation of gaseous uranium hexafluoride: With different density and particle size of solid particles in a liquid sedimentation velocity of different characteristics, some sedimentation centrifuge for solid particles according to density and grain size grading.