1. The pressing way is different:
Hydraulic oil press makes use of hydrostatic pressure transmission principle. It takes liquid as the transmitter of pressure and squeezes the oil seeds. It is a closed loop system composed of hydraulic system and oil press ontology, including hydraulic power pack, controlling valve, motor, electrical cabinet, oil cylinder, charging basket and rack.
Screw oil press force feeding though screw shaft. Pressing rings roll and produce high temperature and high pressure. Then oil will be squeezed out through the weep gap of the pressing rings. It includes rack, electrical cabinet, screw shaft, pressing rings and cake mouth.
2. The quality of the oil is different, the price of the oil is different:
The method of hydraulic oil press is a pure physical one. During pressing process, it does not produce high temperature and does not destroy the organic component of the seeds. Oil quality is better with less impurity. It is very suitable for high oil content seeds, such as sesame and walnut.
Due to screw oil press produces high temperature, it will destroy the organic component of the seeds. Besides, for high oil content seeds there will be greasy filth coming out from the pressing rings. The oil will have more impurity. As the oil is of high temperature, cooling process is necessary.
3. The power is different:
For hydraulic one, the motor power is about 1.5-3KW.
For screw one, the smallest one is about 2.2KW
The hot sale and main products are our oil press series machine. The raw materials range from sesame, peanut, corn, soybean, flax, sunflower, cotton seed, cashew, walnut, coconut, palm and live and all the nuts that could be pressed electrically. The refining machine could make sure to attain purified oil with good color and taste. For years effort, our products have received high reputation from our customers in more than 30 countries, which helps our company earned great credit.
