There are actually about 70 species of sunflowers in the world today, but not all of them produce sunflower oil. Sunflower varieties fall into two main categories: oilseed and non-oilseed. Oilseed sunflower produces solid black seeds with a high oil content, which are best for oil extraction. If you are interested in the sunflower oil production business, the next reading will provide you with more information on sunflower oil extraction.
The optimal temperature for sunflower seeds before pressing is 120 degrees Celsius, and the moisture content is 2-5%. This requires a different pretreatment before pressing.
1. Cleaning raw materials: Different equipment is required to remove impurities, metals, etc. from raw materials. On the one hand, it is to reduce the working pressure of subsequent equipment, and on the other hand, it is to ensure the quality of oil products. The second step is cracking, but there are some shells in the raw material that are more suitable for pressing, and the shells also contain oil.
2. Crushing and rolling: Crushing is to break the raw material into small pieces, and then use a roller to press the raw material into a flat shape, in order to improve the oil yield.
3. Steaming and frying: Under the condition of high temperature and high steam, the raw material reaches the best state before pressing.
4. Pressing: The heated coarse powder is continuously fed into the screw press. As the oil is squeezed through slots in the barrel, it is collected.
Sunflower seeds (with shell) can contain up to 45% oil. It is rich in nutrients, and modern technology has fully mastered how to efficiently process these raw materials to obtain high-quality oil. Huatai Oil Machinery have been focusing on this industry for 38+ years, and have helped our customers set up many factories in Africa and South America. If you need sunflower oil production equipment, please contact us.
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