Edible oil processing machine is a kind of mechanical equipment used to extract edible oil from oil, according to different raw materials and processing requirements, the types of oil processing machine are also different. Common types of edible oil processing machines include cold presses, hot presses, screw presses, hydraulic presses, etc. These common types of edible oil processing machine will be analyzed below.

The cold press oil machine is a kind of oil pressing machine that adopts a low-temperature oil pressing process, and its working temperature is generally controlled below 60 degrees Celsius. The cold pressing machine is suitable for low-temperature cold soak oil-seeds, such as sesame, olive, almond, etc., which can maintain the nutrients and original flavor of the oil-seeds, but the output is low, the process is complex, and the cost is high.

The hot press oil machine is a kind of oil pressing machine that uses a high-temperature oil pressing process, and its working temperature is generally above 80 degrees Celsius. The hot oil press is suitable for high-temperature hot-dip oil-seeds, such as soybeans, peanuts, cottonseeds, etc., which can improve the yield and extraction rate of oil-seeds, but because high temperature will destroy some nutrients and original flavor, the quality of the edible oil produced is poor.

The screw oil pressing machine is a kind of mechanical equipment that uses the principle of screw extrusion to extract oil, which is suitable for the extraction of various oils, such as soybeans, peanuts, cottonseeds, rape seeds, etc. The screw oil press has the advantages of simple structure, convenient operation and stable output, but it has high requirements for raw materials and needs to go through pre-treatment processes such as shelling, crushing and drying.

Hydraulic oil pressing machine is a kind of mechanical equipment that uses hydraulic force to extract oil, which is suitable for the extraction of various oils, such as sesame, sunflower, walnut, etc. The hydraulic oil pressing machine has the advantages of stable work, high output and simple operation, but the equipment cost is high and the maintenance is more complicated.

In addition to the above common types of edible oil processing machine, there are also some new types of oil press equipment, such as supercritical extraction technology oil presses, microwave assisted extraction technology oil presses, etc., these new equipment has certain advantages in improving the output and quality of edible oil.

Generally speaking, different types of edible oil processing machines have their own scope of application and characteristics, and they need to be reasonably selected according to specific raw materials and process requirements when selecting and using.