Rice Grader Series

Introduction

ANON rice grading machines classify rice by size, shape, and quality to ensure the final product meets strict quality standards. They typically combine sieving, gravity separation, and vibration separation to achieve an efficient and accurate grading process.

ANON offers a variety of white rice grading machines to suit different processing needs. We provide a standalone machine or an integration solution for your current milling line. In addition to the commonly used models that grade rice with multi-layer sieves (with sieve holes decreasing in size from top to bottom) combined with machine vibration—such as the MJP Series and MMPS Series—we also provide:

MJXT Series Length Rice Grading Machine
As the name suggests, it grades rice precisely by length. Using a rotating drum with specially shaped indentations, it separates head rice or broken rice from whole grains based on length differences, making it highly suitable for rice mills.

HS Series Thickness Rice Grading Machine
This model grades rice by thickness, effectively removing flat or incomplete grains. The result is high-quality rice with uniform thickness and improved plumpness.

MMJM Series Rotary Rice Grading Machine
A rotary rice grader that separates grains into different categories through three motion paths at the feed inlet, sieve plates, and discharge outlet. It can also be used to grade other similar granular products.

MJP Series White Rice Grading Machine
Designed for grading rice of different sizes, featuring a compact structure and advanced grading technology.

MMPS Series White Rice Grading Machine
Built for high-capacity grading with large sieve areas and multiple layers, making it ideal for handling large-scale rice processing.

Maximize Profit through Highly Consistent Quality

ANON Rice Grading Machine helps maximize your profit from every ton of rice by precisely classifying grains into different grades. With accurate grading, each grade of rice can be sold at its appropriate market price, significantly improving overall revenue.

During rice milling, broken rice is inevitable regardless of the equipment used. Even high-end milling machines can only achieve up to a 99% head rice rate. This means that every batch of finished rice will always contain a certain proportion of broken grains, including head rice, medium broken rice, and small broken rice.

Without proper grading, these different qualities are mixed together and sold at a lower average price. With the ANON Rice Grading Machine, you can effectively separate rice based on size, length, and thickness, allowing you to acquire the full value of each grade.

ANON rice grading machines are capable of classifying rice into up to 7 different grades in a single pass, ensuring precise separation and enabling you to price each category according to its true market value. This not only increases profitability but also improves product consistency and market competitiveness.

Increase Your Grading Efficiency and Reduce Your Labor Costs

Upgrading to the ANON Rice Grading Machine can significantly increase your processing speed per operational hour while drastically reducing labor costs. Compared to manual sorting, our machine produces unmatched efficiency and consistency.

ANON rice grading machines can handle capacities ranging from 0.5 to 13 tons per hour depending on the model, whereas manual sorting typically processes only 2–5 kg per hour per worker. This means one machine can effectively replace hundreds of workers while operating continuously without fatigue.

In addition to higher efficiency, ANON rice grading machines provide far superior accuracy compared to manual sorting. Each grain is classified precisely, ensuring consistent quality and better market value for every grade of rice.

As your production volume increases, the average processing cost per ton decreases significantly. Renting the machine and producing grading service is also an extra profit-sourcing option for you. Over time, investing in a rice grading machine not only reduces operational costs but also improves productivity and maximizes overall profitability.

Reduce Waste Broken Rice, Improve Your Profits

ANON Rice Grading Machine enables a higher utilization rate of small broken rice, turning what is often treated as waste into a valuable by-product. Small broken rice can be sold to food and drink processing factories (ingredients for rice noodles, rice flour, congee, rice cookie, rice wine, etc), used in animal feed, or applied in various industrial processes, creating additional stable revenue streams.

With low-precision or manual grading methods, small broken rice is difficult to separate effectively. As a result, most mills adopt one of two approaches. The first is to ignore the small broken rice and sell everything as mixed rice. While this saves time, it significantly reduces overall rice quality and lowers the selling price.

The second approach is to use simple sieving methods, which can remove part of the broken rice and discard it. Although this may slightly improve rice quality, it still leads to material waste and does not maximize profit. A portion of broken rice remains in the final product, while the separated portion is often underutilized or sold at very low value.

With the ANON Rice Grading Machine, small broken rice can be accurately separated and fully utilized. This ensures higher-quality final rice, better pricing for each grade, and maximum value from every part of your production.

Simple and Smart Design, Easy to Maintain

ANON Rice Grading Machine features a simple mechanical structure with a drawer-style screening design, making it extremely easy to maintain and repair.

The outer cover can be easily removed, allowing quick access to internal components for inspection. The quick-wear part—the screening deck—can be smoothly pulled out for convenient cleaning and fast replacement, minimizing downtime.

In addition, the discharge outlet is designed to be easily opened, enabling quick cleaning in case of clogging during operation. This ensures continuous performance and reduces interruptions in production.

With its user-friendly design, ANON Rice Grading Machine allows operators to carry out routine maintenance without the need for specialized technicians, helping you keep your production running efficiently at all times.

Special Models for Small Rice Mill

ANON not only manufactures models for large-scale rice milling lines but also offers specially designed solutions for small-scale rice mills with lower capacity and flexible configuration options to meet different needs.

ANON mini rice grading machines are especially suitable for small rice processing plants, startup mills, and rural operations where space, budget, and throughput are limited. Despite their compact size, these machines deliver reliable performance, precise grading, and efficient operation.

They are an ideal choice for businesses looking to upgrade from manual sorting, improve rice quality, and increase profitability without a large investment.

ANON Rice Grading Machine Features:

ANON White Rice Grading Machine – Efficient Whole & Broken Rice Separation to Enhance Your Rice Quality and Value!

1. High-Grading Precision

The ANON rice grader delivers highly accurate separation of over 98%, significantly outperform manual sorting, producing rice with uniform grain size and consistent appearance—helping you deliver premium-quality rice that stands out in the market.

Our graders are equipped with multiple sieve layers and adjustable sieve apertures, with each layer corresponding to a specific grain size. This guarantees precise grading into whole rice, large broken rice, medium broken rice, and small broken rice for further processing.

The vibration mechanism ensures that rice rolls evenly across the sieves for quick stratification, while carefully controlled vibration intensity prevents whole rice and broken rice from mixing.

2. High Processing Efficiency

The ANON rice grading machine is designed with a large feeding inlet, a wide screening surface, and a fast discharge system to ensure high throughput. Once the sieve size and other parameters are set, the machine automatically grades rice into whole grains, large broken rice, medium broken rice, and small broken rice under vibration. Each sieve layer has its own discharge channel, directing rice of different grades into their respective bins automatically—no manual intervention required.

The rice grader can be seamlessly integrated into a production line, working in combination with upstream rice whitener machines and downstream color sorters or rice polishers. This enables continuous, uninterrupted processing while minimizing losses between stages, ultimately boosting overall production efficiency.

3. Strong Adaptability

The ANON rice grading machine is adaptable to different rice varieties, from long-grain Indica rice to short-grain Japonica rice and even specialty varieties. With easy-to-change sieve plates of different apertures, operators can quickly switch between rice types without dismantling the entire machine—perfect for multi-variety or small-batch processing.

Our grader also offers adjustable grading levels to suit different market demands. By removing broken grains and imperfect kernels, it can upgrade ordinary rice into premium-quality rice, significantly increasing product value and competitiveness.

4. Stable Operation

The ANON white rice grader features a compact structure and well-engineered design that ensures stable performance. The feeding system delivers rice evenly onto the grading screens, preventing overloading that could cause excessive vibration. Multiple balance points and vibration-damping components minimize shaking caused by uneven loads.

5. Easy Maintenance

Built with durable stainless steel, the rice grader is wear-resistant, long-lasting, and compliant with food processing hygiene standards. The enclosed body design minimizes dust accumulation, while the self-cleaning system prevents blockages during processing, enabling reliable 24-hour continuous operation.

Why Choose ANON

ANON manufactures agricultural equipment using premium materials and components to guarantee stable performance, long service life, and easy maintenance. Its flexible structural design allows for quick replacement of parts, making it simple to adapt to different sizes and quality grades. Choose our rice grading machine to increase efficiency, maximize profitability, and secure long-term success in the rice processing industry.

FAQ

What are the industrial applications of rice grading machines?

Its function is to grade finished rice and extract broken rice that exceeds the requirements. Its performance directly affects the purity of finished rice and is the main instrument for determining the content of broken rice. Therefore, rice sorting machines are essential equipment for rice mills.

Can a brown rice grading machine be used for brown rice, or is it only for white rice?

Most brown rice graders can be used for both brown and white rice, but there are two things to keep in mind.
Required Equipment Parameters: Brown rice has a harder hull and a rougher surface, so the grader’s speed, mesh gap, or feed rate may need to be adjusted to avoid clogging or inaccurate grading.
Some specialized models require adjustments: If your production line only processes brown rice, you can choose a brown rice grader to avoid wear and tear on equipment components caused by brown rice hulls. If you process both brown and white rice, it’s best to choose a general-purpose model with adjustable parameters.

What profit can I gain after upgrading to the rice grading machine?

Apparently, you will earn more after upgrading to a rice grading machine. For example, whole head rice can sell 500 / batch, and broken rice can only sell 200 per batch according to the market price. If they are mixed together, the buyer will acquire the bargaining power and set a much lower price for your rice, because the value is not clear for them to see.,

Why is the classifier vibrating excessively during operation? How can this be addressed?

Excessive vibration during classifier operation is typically caused by issues with equipment placement, component installation, the drive system, or material distribution. These issues require specific solutions. If the machine is not level due to a tilted frame, use a spirit level and adjust the anchor bolts to level the machine. If the screen or drum is not securely installed (e.g., loose mounting bolts), shut down the machine and tighten the bolts one by one, paying attention to even tightening to prevent deformation of the screen. If the drive system is unbalanced (e.g., uneven belt wear or motor shaft misalignment), replace the worn belt and calibrate the coaxiality of the motor and drum shafts (ensuring a deviation of < 0.1 mm). If the feed port is tilted to one side, causing uneven material distribution, adjust the feed leveling device (e.g., the angle of the guide vane) to ensure even distribution of the material on the screen or drum. This will alleviate vibration and prevent degradation of grading accuracy and damage to equipment components.

How do you grade rice?

CNS level: According to the Chinese National Standard (CNS), white rice is divided into three levels based on its appearance quality. The first-grade rice has the least amount of damaged grains, broken grains, impurities, and other defects, indicating that its appearance quality is the highest.

 What could be the problem if there’s still a large amount of broken rice in the rice?

If the grading parameters are inappropriate, such as the drum speed being too high, resulting in a short rice retention time and inadequate separation, or if the screen mesh is too large, causing broken rice to be discharged along with the whole rice, you should reduce the speed or replace the screen with a smaller size. If the equipment is overloaded with too much material, causing material to accumulate in the grading area and preventing separation, you should reduce the feed rate to ensure that the equipment meets its rated processing capacity. If the cleaning device is malfunctioning, such as a worn brush or clogged screen mesh, preventing broken rice from falling to the lower layer, you should inspect and replace the worn brushes or clean the clogged screen mesh. If equipment parts are worn, you should replace the worn drum or recalibrate the gap.