How to improve the oil yield of the oil press machine? Five key optimization directions

🌱 Have you noticed that for the same oil, some oil mills have a high oil yield, while others can never produce much oil?
For edible oil processing plants, oil yield is profit margin! Even a 1-2% increase in oil yield can add hundreds of thousands of yuan in annual revenue to the company.

So, how to improve the oil yield of the press? Based on years of factory practical experience, we have summarized the following five optimization directions👇

1. Choose high-quality oil and pre-treat it

• The upper limit is determined by the quality of the raw materials : choose oils with high oil content and few impurities, such as high-oil soybeans, peanuts or sunflower seeds.

• Pretreatment improves oil yield : including cleaning, removing impurities, crushing, steaming and frying, especially the steaming and frying process can denature the protein, making the oil easier to squeeze out.
  📌 Case: One of our African customers increased the oil yield of peanuts by about 2% by adding the "steaming and frying + moisture adjustment" step.

2. Choose a suitable and efficient press

• Model matching : Choose screw oil press or hydraulic oil press according to output.

• Structural design : wear-resistant screw + high-pressure pressing chamber, higher oil output under the same conditions.

• Sufficient power : The motor power must match and the transmission system must be stable, otherwise incomplete squeezing will occur.

3. Optimize pressing process parameters

• Temperature control : Proper temperature increase can reduce the viscosity of oil and grease, making it flow more smoothly.

• Pressure regulation : Increasing the pressure within a safe range can further squeeze out the residual oil.

• Uniform feeding : avoid sudden changes in speed to ensure a stable pressing process.

4. Regularly maintain and service equipment

• Check wearing parts regularly : Wear of the pressing ring, screw, etc. will lead to a decrease in oil output and should be replaced in time.

• Keep it clean : prevent the accumulation of oil residues, avoid pollution and blockage.
  📌 Tips: After each pressing, clean the residue in the machine cavity in time to effectively extend the life of the equipment and increase the oil yield.

5. Use advanced pressing technology

• Automated control : Real-time monitoring and adjustment of parameters to ensure the process is in optimal condition.

• Multi-stage pressing : pre-pressing + main pressing + finishing pressing to maximize oil extraction rate.
  📌 Data comparison: The oil yield of a single press is about 70-75%, and multi-stage pressing can increase it to 80-85%.

Improving oil yield doesn't rely solely on the equipment itself; it requires comprehensive optimization of raw materials, equipment, processes, and management . We have provided pressing and refining solutions to oil mills in over 100 countries around the world, helping our clients significantly improve oil yield and economic benefits.

👉 If you also want to improve your oil refinery's oil yield, please contact us to obtain the "Oil Refinery Oil Yield Optimization Plan." Our team of engineers will provide you with one-on-one technical guidance and equipment selection recommendations.