The main types of oil presses can be divided according to different classification methods. The following are several common classification methods and their corresponding oil press types:

1. Classification by pressing method

Physical pressing oil press:

Screw oil press: It mainly uses the principle of screw extrusion. Through the extrusion of the rotating screw shaft and the inner wall of the pressing chamber, the oil crops are crushed under high temperature and high pressure, and the oil is squeezed out of the cells. The screw oil press can squeeze a variety of materials, such as peanuts, soybeans, etc. It has the characteristics of large production volume, high oil yield, low energy consumption, novel and beautiful structure, and movable operation. It is widely used in small and medium-sized oil processing plants and rural material processing.

Hydraulic oil press: It is mainly used to squeeze certain specific oils, such as sesame. The hydraulic oil press uses a hydraulic system to press the oil under high pressure to extract oil.

Chemical pressing oil press (less common):

Chemical pressing oil press mainly uses chemical reactions to separate and extract oil, such as solvent extraction. This type of oil pressing method is rarely used in industry, mainly because chemical solvents may remain in the oil, affecting the quality and safety of the oil.

2. Classification by pressing raw materials

Oil presses can also be classified according to the pressed raw materials, such as soybean oil presses, rapeseed oil presses, peanut oil presses, cottonseed oil presses, sesame oil presses, etc. These oil presses are optimized for different oil crops to improve oil yield and oil quality.

3. Classification by scope of use

Household oil presses: mainly used for home use, usually small in size, easy to operate, suitable for processing small batches of oil crops.

Commercial oil presses: mainly used in commercial fields such as catering and food processing, with large processing capacity and high production efficiency, suitable for large-scale oil production.

4. Classification by oil production

Oil presses can also be classified according to oil production, such as small oil presses and large oil presses. Small oil presses produce less oil and are suitable for use by families or small businesses; while large oil presses produce more oil and are suitable for use by large enterprises.

5. Other types

With the development of science and technology, some new oil presses have appeared on the market, such as the fully automatic screw oil press. This oil press adopts vacuum filtration and automatic temperature control functions, and produces products with good quality, delicious taste and high oil yield. It is mainly used for processing in rural areas or on-site processing in urban areas, making production more transparent and reassuring customers.