Groundnut oil making machine is a kind of equipment used to process peanut oil, which can be divided into many types according to different process requirements and production scales. Common types of groundnut oil making machine include physical oil press machine, oil extraction machine, and combined oil press production lines. Each type of oil press machine has its own unique characteristics and scope of application.

The physical oil press machine is to use the physical pressing method to press peanuts into oil. It is characterized by simple process, convenient operation and low cost, and is suitable for small-scale production and home processing. The peanut oil produced by the physical oil press machine is rich in color and fragrance, retains the nutrients of peanuts, and is a natural and healthy edible oil.

The leaching oil press machine extracts the oil from peanuts by solvent leaching. It is characterized by high extraction rate, large output and stable process, which is suitable for large-scale industrial production. The peanut oil produced by the chemical oil press machine has a bright color and delicate taste, but because chemical solvents are used in the extraction process, it needs to go through a desolvation process to ensure the safety of the product.

The combined oil press machine is a combination of physical oil press machine and chemical oil press machine, which not only retains the advantages of physical pressing, but also overcomes the shortcomings of low output of physical oil press machine and poor safety of chemical oil press machine. The combination oil press machine is suitable for small and medium-sized processing plants, which can not only meet the production needs of a certain scale, but also ensure the quality and safety of products.

In addition to the above common types, there are some new groundnut oil making machines  emerging, such as ultrasonic-assisted oil press machine, screw press machine, etc. These new oil press machines have unique advantages in improving production efficiency, improving product quality, and reducing energy consumption, and are favored by more and more manufacturers.