Palm oil fractionation goes through the control of palm oil cooling and crystallization to make separation of palm oil into low melting point liquid and high melting solid. Fractionation of palm oil can be divided into three fractions, stearin, soft fat and middle section, palm midfraction.

Palm oil automatic dewaxing and degreasing process work under slowly stirring and cooling the oil to certain temperature in fixed time, and make waxy formed bigger crystallization, then separation exhalation, after filtering, it separates the fluid oil and solid fat. After palm oil fractionation, palm oil will be clean after five hours in 0 degree, but it can keep transparency and flow ability in the refrigerator and improve the oil quality and appearance.