Hydraulic oil presses have emerged as the go - to equipment for sesame oil production, offering high efficiency, low energy consumption, and excellent oil quality. They are particularly well - suited for small - batch, high - standard processing scenarios. Let's delve into their details.
Hydraulic oil presses can be classified into vertical and horizontal types. The working principle is based on the use of hydraulic pressure to squeeze the sesame seeds. The hydraulic system generates pressure, which is transferred to the pressing chamber, squeezing out the oil from the seeds. This method is gentle on the seeds, ensuring high - quality oil extraction.
When comparing hydraulic oil presses with screw oil presses, several key performance indicators come into play. In terms of temperature control, hydraulic oil presses operate at a relatively low temperature, usually around 40 - 60°C. This low - temperature extraction helps preserve the natural flavor and nutrients of the sesame oil, resulting in more stable oil quality. In contrast, screw oil presses can generate higher temperatures during the pressing process, which may affect the oil's flavor and stability.
In terms of production capacity, screw oil presses are generally more suitable for large - scale production, with an average hourly output of 200 - 500 kg. Hydraulic oil presses, on the other hand, are better for small - to medium - scale production, with an hourly output of 50 - 200 kg, making them ideal for family workshops and small - to medium - sized oil mills.
| Comparison Items | Hydraulic Oil Press | Screw Oil Press |
|---|---|---|
| Temperature Control | Low (40 - 60°C) | High |
| Oil Quality Stability | High | Relatively Low |
| Production Capacity | 50 - 200 kg/h | 200 - 500 kg/h |
For family workshops, the hydraulic oil press is a great choice. It is easy to operate, takes up less space, and can meet the small - scale production needs. For example, a family workshop may only need to produce 10 - 50 kg of sesame oil per day. The hydraulic oil press can achieve this goal with high - quality results.
Small - to medium - sized oil mills, which may have a daily production requirement of 100 - 500 kg, can also benefit from hydraulic oil presses. They can ensure stable oil quality and meet the market's demand for high - quality sesame oil.
Proper maintenance is crucial for the long - term performance of hydraulic oil presses. First, regular cleaning of the filter screen is necessary. A clogged filter screen can reduce the oil flow rate and affect the oil quality. It is recommended to clean the filter screen at least once a week.
Second, check the hydraulic system regularly. Inspect the hydraulic oil level, the tightness of the pipes, and the performance of the hydraulic pump. Any signs of leakage or abnormal pressure should be addressed immediately.
Third, handle the cake materials properly. The remaining cake after pressing should be removed in a timely manner to prevent it from affecting the next pressing cycle.
Common problems with hydraulic oil presses include insufficient pressure, poor oil output, and abnormal noise. If the pressure is insufficient, check the hydraulic oil level, the hydraulic pump, and the pressure relief valve. If the oil output is poor, check the filter screen, the pressing chamber, and the seed moisture content. Abnormal noise may indicate problems with the hydraulic system or mechanical parts, such as loose bolts or worn - out bearings.
By following the correct operating procedures, you can significantly improve the oil yield and quality. For example, adjusting the pressing pressure and time according to the seed quality can increase the oil yield by at least 15%. Using high - quality sesame seeds and ensuring proper pre - treatment, such as roasting and grinding, can also enhance the oil quality.
Here is a common problem self - check list for you to quickly diagnose potential issues with your hydraulic oil press:
Mastering these details, your sesame oil output rate can be increased by at least 15%! Whether you are a family workshop owner or a small - to medium - sized oil mill operator, implementing these strategies can help you achieve stable and efficient production.
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