Decanter centrifuges are designed to separate solid and liquid substances with high centrifugal force and different specific gravity. (2 Phase pomace - olive oil / 3 Phase Pomace - water - olive oil). The decanter consists of a bowl in which a high centrifugal force is applied to the olive paste that enters it, a screw that allows the pomace to be thrown out, and a gearbox connected to this screw. There are two separate motors that drive the bowl and the screw, and a frequency driver (Inverter) that controls the motors. Thanks to the double motor, the bowl and screw revolutions can be adjusted according to the type and characteristics of the olive to be processed, and the amount of unwanted leakage oil in the pomace is reduced to a minimum. It demonstrates nature friendliness with minimum energy consumption and keeps maintenance and repair times to a minimum with its unique design. ONER decanters can be configured in different processes with this structure.