What is the difference between Henan automatic oil press and hydraulic oil press?
1. Automatic oil press is easy to operate, high oil yield, but the power consumption is higher than the hydraulic oil press.
2. Hydraulic oil press has high cake yield, but the labor is more than automatic oil press.
3. Automatic oil press has a wider range of application for raw materials, while hydraulic oil press has a smaller range.
4. Automatic oil press can let people visualize the oil, hydraulic oil press can not give people a long period of time to visualize the effect of oil.
5. The oil from hydraulic press is clear and does not need to be filtered, while the oil from automatic press must be filtered through a filter.
6. Hydraulic oil press requires more equipments and a single equipment can't complete the oil extraction, such as steamer, tie machine, etc., but automatic oil press is OK.
screw oil press machine
hydraulic oil press machine
Oil Pressing Method
Hydraulic oil press is a kind of oil press equipment which takes liquid as pressure transmission medium and squeezes the oil according to the principle of liquid pressure transmission. It is a closed-loop system composed of hydraulic system and oil press body, which is mainly composed of hydraulic pump station, control valve, motor, electrical cabinet, oil cylinder, barrel, frame and other parts.
Screw oil press is a pressing equipment which is forced to feed the material through screw shaft and produce high temperature and high pressure under the rotating and squeezing with pressing ring, so that the oil material is crushed and squeezed to produce oil and cake. It mainly consists of frame, control cabinet, screw shaft, press ring, slag outlet and so on.
Finished oil quality
Hydraulic oil pressing method is a pure physical oil pressing method, which does not generate temperature in the process of oil pressing and does not destroy the organic components of the oil. The oil extracted is of good quality with few impurities. It is especially suitable for some oil materials with high oil content (such as sesame, almonds, pine nuts, peanuts, walnuts and some animal oils) and materials that must be processed by cold pressing method (such as chemical raw materials and pharmaceutical raw materials).
Screw oil press in the process of oil extraction, due to the friction of the ring will produce high temperature, will destroy the organic components of the oil: in the process of rotary friction, some oil with high oil content will produce oil oil sludge from the ring is extruded, the impurity content of the oil will be more. Due to the high temperature of the oil, the nutrients of the oil will be destroyed. After pressing, it needs to be cooled.
Recycling rate of cake residue
Hydraulic oil press will not destroy the organic components in the oil during the pressing process. The secondary value of cake residue is high and has a wide range of uses. For example, some food processing enterprises do walnut powder, almond milk, peanuts, and some oil can be reduced or reprocessed into other foods. This has certain requirements for the oil yield. Hydraulic oil press can control the oil output by adjusting different pressures, which must be more suitable for these enterprises; this can not be realized in screw oil press.
Screw oil press in the oil extraction process will produce high temperature due to mechanical friction, in the process of oil extraction in the oil will be lost, which for the direct sale of cake residue will also cause some losses. (The water content of cake residue of hydraulic oil press is about 10%, and the water content of cake residue of screw oil press is only 2-3%.)
Matching power
The matching power of small and medium-sized hydraulic oil press is generally 1.5-3kw, while the power of a smallest screw oil press is more than 5kw!
Price of wearing parts and failure rate
Hydraulic oil press works by oil pump and some control valves. Its failure is mainly in the sealing of pipes and plungers. In maintenance, it can be solved by replacing some gaskets and so on. It is easy to maintain and the parts are cheap.
Screw press works by mechanical rotation, which generates great friction in the process of oil extraction. The wear between the screw shaft and the press ring is fast. If the workload is large, it is usually replaced once in six months, and the folding and installation is more troublesome, and the price of accessories is relatively high.