hydraulic oil press machine
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
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 5.5KW
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