An oil press is a machine used to extract oil from oilseed crops. It uses mechanical external force to increase the temperature to activate oil molecules, thereby squeezing the oil out of the oil. Oil presses play an important role in food processing and oil production, widely used in households, small workshops, and large-scale oil production enterprises. It has a good oil extraction effect on nuts, rapeseed, chili peppers, and olives.

• The working principle of an oil press is mainly based on the physical pressing method. The specific steps are as follows:
• Preprocessing: Wash, crush, steam, and treat oil crops to make them easier to press.
• Squeezing: Put the pre treated oil into an oil press, and use a squeezing screw or plate to squeeze the oil, separating it from the oil.
• Filtering: Separate the squeezed oil residue and grease, remove impurities and residues from the grease through a filtering device, and obtain pure grease.
• Types of oil presses
• Oil presses can be classified into various types based on their purpose and structure, including household oil presses, hydraulic press oil presses, screw oil presses, new hydraulic oil presses, high-efficiency fine filter oil presses, and fully automatic oil presses. Among them, the fully automatic oil press has the advantages of high automation, high oil yield, and easy operation, making it particularly suitable for large-scale production.