What is the difference between hydraulic oil press and screw oil press?

Hydraulic oil press and screw oil press are the main kinds of oil press used in cooking oil production industry, and they have their own advantages and disadvantages. If you don't know how to choose them, Glory Oiltech will introduce you the difference of hydraulic oil press and screw oil press, through the advantages and disadvantages. You can choose suitable oil press to use based on your needs.

1. The introduction of hydraulic oil press

Hydraulic oil press uses physical way to extract oil, and the oil quality is better. Hydraulic oil press is easy to operate and cost less, usually used in family or small scale oil extraction production line. The hydraulic oil press is suitable for cold pressing, especially for sesame, peanut, walnut and so on.

The structure of automatic hydraulic oil press machine

Advantages of hydraulic oil press

Compared with ordinary screw oil press, hydraulic oil press is environmental protection and energy saving. There is less noise during operating. It is physical pressing without heating, no addition of any chemical substances. The major advantages of the hydraulic oil press is that the pressure of the equipment is hydrostatic, and the mechanical friction of the oil is very small, so the oil is very clean and can be consumed directly without any treatment.

Disadvantages of hydraulic oil press

Different from screw oil press, the hydraulic oil press is a closed hydraulic system, if only part of the leakage of oil will make the whole machine useless. Oil yield rate is relatively low, with a single function and low automation.

2. The introduction of screw oil press

Different from hydraulic oil press, the screw oil press presses the oil by continuously pushing the screw shaft forward and squeezing the material. Glory Oiltech provide three types of screw oil press: single screw oil press, screw oil press with automatic temperature control system and screw oil press equipped with vacuum filtration system and automatic temperature control system. Specially, screw oil press equipped with vacuum filtration system and automatic temperature control system is very popular among the small investors. The oil quality is clear and pure with less foam and impurities after pressing.

Automatic temperature controlled integrated oil press machine with vacuum filter

Advantages of screw oil press

As the screw oil press goes through 3-4 times of squeezing, the oil yield is higher than that of a hydraulic oil press with a single squeeze. And because of the simple mechanical structure of the left and right screw presses, it’s more durable and stable. It also has different model for different processing capacity. Screw oil press is reasonably designed with advanced performance and is suitable for various oil seeds pressing, such as soybean, peanut, cottonseed, sunflower seeds and so on. It can be pressed directly, saving time and costs. The invest cost for the screw oil press is less and the processing capacity is high.

Disadvantages of screw oil press

While screw oil press produces high temperature during work, it will It destroys the nutrients in the oil. The oil has a black appearance and high phospholipid contact. It is necessary to equip a centrifugal filter for fine filtration.

The above is Glory Oiltech's introduction of the advantages and disadvantages of hydraulic oil press and screw oil press to make you more aware of their differences and make better choices. We hope that it can be helpful for you. Please feel free to leave a message on our website if you still have any questions.