In modern rice processing lines, the rice milling machine plays a crucial role in determining grain quality. A high rate of broken rice not only lowers product value but also reduces overall yield. To minimize this issue, operators must understand how the machine works, apply proper adjustments, and follow consistent maintenance practices.
OPTIMIZING THE MILLING PROCESS
Reducing broken rice starts with careful preparation — from raw paddy selection to milling operation. The moisture content of paddy directly affects grain strength. If the paddy is too dry, grains become brittle and prone to breakage; if too moist, they soften and deform easily. The ideal range is 14–14.5%, which allows grains to stay flexible enough to withstand friction without cracking.
Pre-sorting is equally important. Removing immature, lightweight, or already cracked grains ensures smoother operation and consistent milling pressure. Uniform batches help distribute force evenly, minimizing internal stress and impact among grains. For better results, use a two-stage light milling process instead of a single heavy pass. The first pass gently removes the outer bran, while the second — under lower pressure — polishes the surface, creating a smooth and glossy finish with minimal breakage.
MACHINE ADJUSTMENT AND REGULAR MAINTENANCE
Machine configuration directly affects rice integrity. If pressure between the milling roller and sieve is too high or the speed too fast, excessive friction generates heat that cracks the grains. Conversely, too little pressure results in poor whitening. Operators should adjust both speed and pressure based on the paddy type to achieve smooth and efficient milling. The roller’s abrasive material also matters. Lightweight alloy rollers with fine surfaces help reduce mechanical shock.
Many modern machines now feature automatic pressure control systems that keep the milling force stable, preventing uneven stress and grain damage. Regular maintenance is vital. Components such as bearings, gears, and abrasive parts must be inspected frequently to prevent vibration or misalignment — both common causes of broken rice. Proper cleaning helps maintain performance, efficiency, and the machine’s lifespan.
CONTINUOUS MONITORING AND AUTOMATION
Regular sampling during milling helps detect increases in broken rice early. Timely adjustments to pressure, speed, or input moisture prevent quality loss. Modern milling systems integrate automation and smart monitoring, allowing real-time tracking of temperature, speed, and pressure.
Automation reduces human error and keeps product quality consistent. With sensors and control software, operators can fine-tune every stage of the process, improving efficiency while minimizing grain breakage.
SYNCHRONIZED OPTIMIZATION FROM RAW MATERIALS TO MACHINES
Reducing broken rice requires a coordinated approach — from raw material preparation to machine setup and skilled operation. When every stage is managed carefully, the milling line performs efficiently, producing intact, bright, export-quality rice.Investing in modern milling equipment, combined with automation and standard maintenance, helps businesses increase productivity, cut costs, and enhance competitiveness in the rice industry.
VICHEM – DISTRIBUTOR OF BUHLER AGRICULTURAL MACHINERY AND EQUIPMENT PRODUCTS IN VIETNAM
Vichem is the authorized distributor of Buhler agricultural machinery and equipment products in Vietnam. We not only provide quality products but also provide after-sales services that meet international standards. Services include:
- Technical consultation: Helping customers choose the right additive for their applications.
- Color testing: Vichem experts conduct precise lab tests to ensure accurate color results.
- Application support: Assisting clients in integrating additives into production lines for consistent performance.
For more information, please contact us:
📞 Hotline: 08 1790 1790
📧 Email: contact@vichem.vn
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🌐 Website: www.vichem.vn
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