In many aspects of process engineering, separators are used for mechanical separation and clarification of mixtures comprising solids and liquids. A separator is liquid-oriented and works with a higher rotation speed than a decanter. As a result, the generated centrifugal acceleration (g number) of a separator is significantly more powerful than in decanter centrifuges. Flottweg separators are suitable for separating ultrafine solid particles from a liquid (clarifier separator). Furthermore, Flottweg separators are suitable for separating mixtures of liquids with different densities at the same time as separating a solid (purifier). Flottweg AC separators (Automatic Cleaning) can be used in a wide range of applications, and are also available in various configurations.