Designing and laying out a rice bran oil mill plant involves several key points to ensure efficiency, productivity, and sustainability:

1. Automated Grain Handling: The integration of automated grain handling systems, such as conveyor belts, robotic arms, and sensor technology, can significantly improve the efficiency of rice mills. This technology makes the process of moving grains from one stage to another faster and more precise, reducing manual labor and minimizing human error.

2. Compact and Space-Efficient Designs: Space optimization is a crucial consideration in modern rice mill layouts. Utilizing compact designs and vertical storage solutions allows mill owners to make the most of limited space while maintaining high production capacities.

3. Energy-Efficient Machinery: The adoption of energy-efficient machinery is a growing trend in rice milling. Newer milling equipment is designed to consume less power while delivering the same or even better results. This approach supports sustainability initiatives in addition to lowering operating costs.

4. Sustainable Practices: As the world becomes more environmentally conscious, rice mill layout plants are increasingly focusing on sustainability and eco-friendly practices. These measures include waste reduction and recycling efforts, as well as efficient water management solutions.

5. Rice Bran Pre-processing: Pre-processing generally includes the processes of screening and heating, which prepare the rice bran for oil extraction. Stabilization is crucial to remove bacteria and enzymes that cause the rice bran to spoil and to lower the fat acid rate.

6. Rice Bran Oil Extraction Process: After specific preprocessing, the rice bran is fully stabilized and can be sent to the oil extracting section. Screw oil pressing/expelling and solvent extraction are the two common plant oil making processes.

Remember that each plant will have its unique requirements and challenges, so these points should be adapted as needed.