What is the working principle of an oil press

Spiral oil press is suitable for various types of oil, such as peanuts, soybean oil sunflower, olives, etc., and is divided into two types: cold press and hot press. Its working principle is to use a squeezing screw to rotate the oil, causing it to enter the squeezing chamber and experience high-pressure friction. The colloid increases its plasticity, allowing the oil to flow out. Prices vary depending on production volume and process. During the running in period, it is important to use rapeseed or rapeseed cake as the main grinding material to avoid feeding too quickly and causing the machine to become stuffy.

Introduction to Working Principle

After entering the oil press, the oil gradually enters the press chamber through the rotation of the press screw. As the screw rotates (the screw pitch gradually changes), the embryo is continuously pushed inward and pressed. Under the condition of high pressure in the squeezing chamber, a huge frictional force is generated between the embryo, the squeezing screw, and the squeezing chamber, causing the oilseed to bear significant pressure. Meanwhile, as the snails rotate, the distance between them gradually decreases. In this case, relative motion occurs between the screw and the material inside the squeezing chamber. The friction between the oil itself and the oil, as well as the heat generated by the oil press heating, causes thermal denaturation of the proteins in the oil, destroys the colloids, increases plasticity, and reduces viscosity, making it easier for the oil to flow out. The oil then flows out through the gaps in the rows of the oil press.

The effectiveness of using an oil press

• The spiral oil press equipment has the advantages of good performance, simple operation, and easy maintenance. The oil press can efficiently separate the oil from the material during operation, and due to the reasonable design of the press screw, it will not have any impact on the quality of the material.
• In addition, the spiral oil press also has the advantages of high instrument accuracy and high degree of automation. The use of spiral oil press equipment for production can greatly improve the degree of mechanization, reduce labor costs, and improve production efficiency.
• Spiral oil press equipment is widely used in various fields such as obtaining plant seed oil and separating and extracting chemical raw materials. Such as sesame, peanut oil sunflower, olive, avocado, etc. This equipment is not only suitable for large and medium-sized edible oil processing plants, but also for small or household production.
• Zhengzhou Fude Machinery integrates research and development, manufacturing, and sales. We have a professional technical team that deeply understands customer needs, recommends and answers equipment questions for customers, teaches operation techniques, and produces oil presses, refiners, dryers, shellers, etc. If you want to learn about the agricultural product processing industry, please consult us.