1. Pressing equipment
Hydraulic oil press: Hydraulic oil press is one of the commonly used equipment in sesame oil extraction. It applies high pressure to sesame seeds through the hydraulic system to squeeze out the oil in them. Hydraulic oil press has the advantages of simple structure, low pressing temperature and good oil quality, but it is usually suitable for small oil presses because of the labor intensity of intermittent operation and loading and unloading cakes. Hydraulic oil presses can be divided into vertical hydraulic oil presses and horizontal hydraulic oil presses, among which vertical hydraulic oil presses are more common in sesame oil production.
Screw oil press: Although hydraulic oil presses perform well in processing sesame oil, screw oil presses are also used in some occasions. The screw oil press continuously pushes sesame seeds forward and squeezes them through the rotation of the screw shaft to extract oil. However, compared with the hydraulic oil press, the oil quality of the screw oil press when processing sesame oil is slightly inferior.
2. Solvent extraction equipment
Solvent extraction equipment uses organic solvents (such as petroleum ether, n-hexane, etc.) to dissolve and extract oil from sesame seeds. This method has the advantages of high oil yield and low cost, but attention should be paid to the recovery and treatment of solvents to avoid impacts on the environment and health.
3. Supercritical CO2 extraction equipment
This is an emerging green and environmentally friendly extraction method that uses supercritical carbon dioxide as an extractant to extract oil from sesame seeds. The sesame oil extracted by this method is of high quality and has no solvent residue, but the equipment investment is large and the cost is high.
4. Water substitution equipment
Although the water substitution method is more of a traditional process, modern water substitution equipment is also being continuously improved. These equipments improve the extraction efficiency and oil quality of the water substitution method by optimizing the process links such as stirring, kneading, heating, and centrifugation.
5. Leaching and refining equipment
Leaching and refining equipment usually includes extractors, evaporators, desolventizing towers, refining equipment and other parts. After the sesame raw materials are fully soaked, they are extracted by high temperature with solvents, and then refined through the "six degreasing" process (degreasing, degumming, dehydration, decolorization, deodorization, and deacidification) to finally obtain high-quality refined sesame oil.
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Equipment selection: The selection of sesame oil extraction machinery and equipment should be considered comprehensively based on factors such as production scale, raw material characteristics, product quality requirements, and investment costs. For example, for small oil mills, hydraulic oil presses may be a more suitable choice; while for large oil processing enterprises, more efficient equipment such as solvent extraction equipment or supercritical CO2 extraction equipment may need to be considered.
Equipment performance: The performance of the equipment directly affects the extraction efficiency and oil quality of sesame oil. Therefore, when selecting equipment, attention should be paid to its performance indicators in terms of pressing efficiency, oil yield, oil quality, and degree of automation.
Maintenance and care: Equipment maintenance and care are also the key to ensuring long-term stable operation and extending service life. The equipment should be inspected, cleaned, lubricated, and repaired regularly to ensure that it is in good working condition.
As a high-quality edible oil, sesame oil is widely used around the world, especially in Asia and the Middle East. Sesame oil extraction machinery plays a vital role in the production process, and different application scenarios have different requirements for machinery. The following are the main application scenarios of sesame oil extraction machinery:
1. Small family workshops
Application scenarios: Small family workshops are usually located in rural areas or towns, mainly producing sesame oil for self-use or supplying local markets. These workshops have a small production scale, but have high requirements for product quality.
Mechanical equipment: Small screw presses are usually used, which are easy to operate, easy to maintain, and can meet the needs of small batch production. The equipment occupies a small area and is suitable for use in a home environment.
Features: Low input cost, flexible operation, suitable for family workshops or self-employed entrepreneurs.
2. Medium-sized regional production
Application scenarios: Medium-sized regional production enterprises usually supply sesame oil to the regional market to meet the needs of local catering industry and families. Such enterprises have a moderate production scale and need to find a balance between output and product quality.
Mechanical equipment: Medium-sized screw presses and supporting filtering equipment are common choices, and sometimes steaming and frying equipment is used to increase the oil extraction rate. Some companies may be equipped with preliminary refining equipment to improve product quality.
Features: High production efficiency, able to meet the stable supply demand of the regional market, and the product quality is also relatively reliable.
3. Large-scale industrial production
Application scenarios: Large-scale industrial production companies usually face the national market and even export to the international market. Such companies need to mass-produce high-quality sesame oil to meet large-volume demand.
Mechanical equipment: These companies usually use fully automated production lines, including efficient screw presses, a full set of refining equipment (degumming, deacidification, decolorization, deodorization), filtering equipment and automatic packaging lines. The high degree of automation can ensure product quality consistency and production efficiency.
Features: Suitable for long-term large-scale production, complete equipment configuration, complex production process, and can achieve dual guarantees of high output and high quality.
4. Food processing companies
Application scenarios: Some food processing companies use sesame oil as raw material to produce sesame paste, condiments or other food additives. These companies have extremely high quality requirements for sesame oil, especially the retention of flavor and nutrients.
Mechanical equipment: High-precision pressing equipment and refining equipment are usually used to ensure that the extracted sesame oil is of high purity and unique flavor, suitable for food processing requirements.
Features: Every link in the production process needs to be strictly controlled to ensure the flavor and quality of the product, and the mechanical equipment needs to have fine processing capabilities.
5. High-end catering and specialty oil stores
Application scenarios: High-end catering and specialty oil stores have higher requirements for the quality of sesame oil, and usually choose higher-quality cold-pressed sesame oil. This type of scenario focuses on the natural flavor and health properties of sesame oil.
Mechanical equipment: The cold press is the main equipment in this scenario. It is used to press sesame oil under low temperature conditions to maximize the retention of sesame's natural flavor and nutrients.
Features: The cold pressing process equipment is relatively expensive, but it can produce high-end sesame oil with rich flavor and rich nutrition, which is suitable for the high-end market.
6. Export-oriented production enterprises
Application scenarios: The sesame oil produced by these enterprises is mainly used for export and supplied to the international market. Foreign customers usually have more stringent requirements on product quality standards and certification.
Machinery and equipment: In order to meet the needs of the international market, these companies need to adopt internationally advanced pressing and refining equipment to ensure that the products meet export standards. The equipment is usually efficient and stable.
Features: It is necessary to strictly comply with international quality standards, the equipment is high-end and the production line is highly automated, suitable for large-scale export production.
The application scenarios of sesame oil extraction machinery are diverse, covering a wide range from small family workshops to large-scale industrial production. According to different market demands and production scales, companies can choose the machinery and equipment configuration that suits them to achieve efficient production, ensure product quality, and gain an advantage in the fiercely competitive market.
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