Spiral oil press and hydraulic oil press are two common types of oil extraction equipment, differing significantly in their working principle, application scope, and performance characteristics. The following will compare and analyze them from several aspects.

First, the working principle

Spiral oil press adopts the principle of mechanical extrusion. Through the high-speed rotation of the screw shaft, the oil is continuously pushed forward, and at the same time, the oil is squeezed out under the action of high pressure. The whole process is continuous and efficient.

The hydraulic oil press uses the high pressure generated by the hydraulic system to gradually squeeze the oil. Its operation needs to be completed step by step, usually in intermittent working mode.

Second, the scope of application

In the scope of application, the spiral oil press is mostly used to treat common oils such as rapeseed, soybean and sunflower seeds, which is suitable for industrial production or large-scale processing.

Hydraulic oil press is more suitable for processing sesame, walnut and other high value-added oils, especially for occasions that need to maintain the fragrance and quality of raw materials, such as small workshops or families.

Third, the oil yield and oil quality

Although the spiral oil press has high efficiency, it may generate some heat at high speed, which will affect the nutritional composition of some oil, and the oil yield is slightly lower than that of hydraulic oil press.

The hydraulic oil press can effectively protect the nutrients in the oil because of the more uniform pressure and lower temperature, so the oil yield is higher, and the oil quality is better, the color is clear and the impurities are less.

Fourth, operation and maintenance

Spiral oil press is easy to operate and has a high degree of automation, which is suitable for continuous production, but the equipment wears quickly and needs regular maintenance.

The operation of hydraulic oil press is relatively complicated and the production efficiency is low, but the equipment has strong durability and low maintenance costs.

Spiral oil press and hydraulic oil press have their own advantages, and the choice of which equipment mainly depends on the production demand. If you pursue high-efficiency mass production, you can choose spiral oil press; If small batch and high quality production are pursued, hydraulic oil press is more suitable. In practical application, it can be reasonably selected according to the specific situation to achieve the best economic benefits.