Edible Oil Extraction

An edible oil expeller uses a screw press to crush and push the oil out of the raw materials by using mechanical force.

Edible Oil Extraction processes

Feeding:

The raw materials—which include nuts and seeds such as peanuts, sunflower seeds, soybeans, and so forth—are fed into the expeller.

Pressing Section:

The raw materials pass through a pressing section where a screw rotates and compresses the material. The pressure applied by the screw causes the oil to be released from the cells of the raw material.

Oil and Cake Separation:

The oil is released during the pressing process and exits the expeller through tiny holes. After that, the extracted oil is collected, and the residual material—also referred to as cake or meal—is processed further through the expeller.

Cake Discharge:

The expeller releases the cake, which is still partially coated in oil. The cake may go through additional processing to extract more oil or be utilized for other purposes, depending on the kind of raw material.

The type of raw material, the amount of oil in the seeds or nuts, and the required grade of the extracted oil all influence the expeller selection. Contact us today for expert guidance.