Rice bran oil press

Rice bran oil press is a high-efficiency pressing equipment carefully developed by our company on the basis of absorbing advanced technologies at home and abroad. It has a wide range of applications and can efficiently press a variety of oil crops such as peanuts, soybeans, rapeseed, sunflower seeds, tea seeds, sesame, cotton seeds, castor seeds, flax seeds, corn germ, etc. The equipment has the advantages of small size, low operating noise, high oil output efficiency, low energy consumption, and high oil output rate.

The process of squeezing rice bran with screw oil press:

Rice bran→screening→adding warm water→mechanical stirring→heat preservation and moistening→cake making→pressing→crude oil

Working Principle of Rice Bran Oil Press

During the operation of the rice bran oil press, the processed oil will flow from the hopper into the pressing chamber. Driven by the rotation of the pressing screw, the germ is continuously pushed into the pressing chamber for pressing. Since the germ is in a dynamic state in the pressing chamber of the rice bran oil press, under the combined effect of the high pressure environment in the pressing chamber, a large friction resistance will be generated between the germ and the pressing screw, and between the germ and the pressing chamber, causing the germ particles to rub against each other and produce relative motion.

On the other hand, the diameter of the spiral tooth root of the rice bran oil press is gradually increased, and the pitch is gradually reduced. Therefore, when the spiral rotates, the thread will push the embryo to move forward and flip outward, and the material layer close to the surface of the spiral thread will also rotate with the pressing shaft. In this way, in the pressing chamber of the rice bran oil press, each embryo particle does not move at the same speed and direction, and there is relative movement between the particles. The heat generated by friction just meets the heat conditions required for the pressing process of the rice bran oil press, which helps to promote the thermal denaturation of protein in the embryo, destroy the colloidal structure, enhance its plasticity, reduce the viscosity of the oil, and facilitate the precipitation of the oil, thereby improving the oil output rate of the rice bran oil press, so that the oil in the embryo is fully squeezed and flows out from the gaps in the round row and the gaps in the strip row.

Factors affecting rice bran oil yield:

1. Rice bran contains broken rice, which contains starch, which is easy to gelatinize and become sticky, blocking the oil circuit and affecting the oil output.
2. Broken rice is easy to absorb oil when pressed after drying.

Advantages and features of rice bran oil press:

1. Stable and reliable performance: The oil press has passed professional technical testing and appraisal by relevant departments for many times.

2. Pure physical pressing: The squeezed oil is clear in color, pure in quality, original in flavor and rich in aroma.

3. Wide range of applications: It can be widely used in the pressing of various oil crops such as peanuts, soybeans, rapeseed, sunflower seeds, flax seeds, castor seeds, almonds, walnuts, sesame, corn germ, cotton seeds, etc.

4. Complete supporting facilities: It provides perfect technical support and a full set of mechanical equipment, which is an ideal choice for urban and rural oil plants and small and medium-sized oil plants.

5. After-sales guarantee: Provide professional and timely after-sales service, so that you can buy with peace of mind and use with confidence.

The spiral oil pressing technology is mature. The rice bran is moistened and cooked, which has a certain inhibitory effect on the activity of lipase. The acid value of the crude rice bran oil produced is low, and the residual oil in the rice bran cake can be reduced to about 5%, which is lower than the hydraulic oil output and higher than the leached oil output.
The crude oil produced by this method is of good quality, easy to refine, requires little process investment, is suitable for both large and small scales, is easy to match with rice mills, and has low processing costs. The disadvantage is that the oil yield is low.
Therefore, screw oil presses are generally used to process oils with high oil content, and are not recommended for processing rice bran oil with low oil content. Continuous mechanical pressing is the latest processing trend.

As an innovative technology in the field of grain and oil processing, rice bran oil press not only promotes the resource utilization of agricultural waste, but also provides environmentally friendly and energy-saving solutions for the industry. With the increase in consumer demand for healthy oil products and the expansion of the global vegetable oil market, the technological iteration and market penetration of rice bran oil press will continue to accelerate. In the future, companies need to focus on intelligence and greening, and further release the economic and ecological value of the rice bran industry through process optimization and cost control.