Automatic oil press

oliveavocado

The oil press refers to a kind of device that can, by means of external mechanical force, squeezes grease from oil through raising the temperature and activating oil molecules. Oil presses can fall into household oil press, hydraulic oil press, screw oil press, new hydraulic oil press, high efficiency fine oil filter press and automatic oil press. What we introduced now is screw oil press. Compared to other types of oil presses, a screw oil press has a high oil capacity, good cost performance and simple operation although the oil quality is not as good as that of other oil presses. (A hydraulic oil press only need a small driving force, which can be drove by both three-phase and household electricity. The oil is clear but the output is low. So a hydraulic oil press is more suitable for expressing high-end oil such as sesame oil and walnut oil.) Expression Method There are two methods for extracting edible oil from plants, which are chemical extraction and physical extraction. Normally they are also known as lixiviation method (chemical) and expressing method (physical). With a long history, the expression method has a relatively simple process. After steaming and frying raw material, it can express oil from the material by means of mechanical method. The traditional expression method requires strenuous manual labour and the content of residual oil is quite high, wasting extremely valuable raw material. The modern expression method can complete industrial automatic operation, but it neither solve the problem that the content of residual oil is high.