What Is a 63×3 White Rice Grader and How Does It Increase Rice Mill Profitability?

A 63×3 white rice grader uses a three-layer vibrating sieve system to separate rice into multiple commercial grades, improving product quality, meeting export standards, and increasing rice mill profitability by up to 15% without increasing production volume.

Introduction: Why Rice Grading Is Where Profit Is Made

In the rice milling industry, most operators focus on increasing production capacity—faster milling, higher throughput, and better polishing. However, experienced mill owners understand a more important principle:

Production creates output. Grading creates profit.

The 63×3 white rice grader is one of the most important machines in a modern rice processing plant, yet it is often underestimated or treated as optional.

After milling and polishing, rice is not uniform. It contains a mix of:

• Whole grains
• Large broken grains
• Small broken grains

If this rice is sold without proper grading, it is priced as a mixed product—resulting in lost revenue and reduced competitiveness.

By contrast, rice mills equipped with a high-precision grading machine can:

• Segment rice into multiple commercial categories
• Sell each category at optimized pricing
• Meet export standards
• Improve brand positioning

In competitive markets such as India, the Philippines, Nigeria, and Tanzania, this difference can determine whether a rice mill operates at average margins or premium profitability.

Definition: What Is a 63×3 White Rice Grader?

A 63×3 white rice grader is a rice processing machine designed to separate milled white rice into different sizes using a three-layer vibrating sieve system.

It typically divides rice into:

• Head rice (whole grains)
• Large broken rice
• Small broken rice

The designation “63×3” refers to:

• The screen size (63)
• The three-layer sieve structure (×3)

This multi-layer configuration enables high-precision classification, which is essential for both domestic markets and export-grade rice.

Why Rice Grading Is Critical in Modern Rice Processing

Rice grading directly affects how your product is valued in the market.

Without Grading

• Mixed product quality
• Lower average price
• Reduced competitiveness

With Grading

• Clear product segmentation
• Multiple pricing tiers
• Higher overall revenue

Market Pricing Reality

Industry Data

• Broken rice is typically 30–50% cheaper than whole rice (FAO)
• Export markets require uniform grain size and classification
• Proper grading can increase total revenue by 8–15% per ton processed

How a 63×3 White Rice Grader Works

The machine operates using a combination of vibration, gravity, and sieve separation.

Step-by-Step Process

1. Feeding

Milled rice enters the grader evenly through the inlet system.

2. Top Layer (First Sieve)

• Removes oversized particles or impurities
• Begins initial classification

3. Middle Layer

• Separates head rice from large broken grains

4. Bottom Layer

• Separates small broken rice and fine particles

Final Outputs

• Head rice → premium market
• Large broken rice → secondary market
• Small broken rice → industrial or low-cost use

Technical Specifications of the 63×3 White Rice Grader

Why 3-Layer Grading Is Superior to 2-Layer Systems

Many rice mills still use simpler grading systems, but these limit profitability.

Comparison Table

👉 A 3-layer grader enables more precise segmentation, which directly translates into higher revenue per ton.

Real Case Study: Starlight Customer Application

Customer Profile

• Medium-scale rice mill
• Located in Southeast Asia / Africa
• Goal: improve product quality and export capability

Before Using 63×3 Grader

• Mixed rice output
• Inconsistent product quality
• Limited pricing power

After Implementation

• Clear separation of rice grades
• Improved consistency
• Access to export markets
• Higher selling price per ton

Starlight Operational Data

Rice mills using 3-layer grading systems typically achieve 10–18% higher revenue per ton processed, based on real deployment data.

Where the Rice Grader Fits in the Milling Process

Full Rice Processing Workflow

1. Cleaning
2. De-stoning
3. Husking
4. Paddy separation
5. Whitening
6. Polishing
7. Grading (63×3)
8. Packaging

👉 The grader is the final stage where product value is maximized.

ROI Analysis: Why the Investment Pays Back Fast

Example Calculation

• Capacity: 2 tons/hour
• Daily output: 16 tons
• Revenue increase: +$10 per ton

👉 Daily gain: $160
👉 Monthly gain: ~$4,800

Payback Period

👉 Typically 3–6 months

Who Should Use a 63×3 White Rice Grader?

Ideal Applications

1. Medium-Scale Rice Mills

• 1–5 tons/hour capacity
• Focus on efficiency and quality

2. Export-Oriented Businesses

• Require strict grading standards

3. Rice Traders

• Need consistent product quality

Key Advantages of the 63×3 White Rice Grader

1. High Precision Separation

Ensures consistent output quality.

2. Increased Profitability

Maximizes value from each ton processed.

3. Stable Operation

Designed for continuous use.

4. Low Maintenance

Simple mechanical design.

5. Compact Structure

Easy to integrate into existing systems.

Common Mistakes When Choosing a Rice Grader

❌ Choosing 2-layer systems

→ Limits profit segmentation

❌ Ignoring sieve quality

→ Reduces accuracy

❌ Oversizing equipment

→ Unnecessary investment

Global Demand Trends

The demand for rice grading machines is increasing rapidly in:

• Philippines
• India
• Nigeria
• Tanzania
• Vietnam

Reasons for Growth

• Rising export standards
• Increasing consumer expectations
• Market segmentation

How to Choose the Right Rice Grader

Key Factors

1. Capacity Matching

Machine must align with your production line.

2. Sieve Quality

High precision improves separation accuracy.

3. Durability

Must operate under continuous industrial conditions.

4. Ease of Maintenance

Critical in developing markets.

Integration With Full Rice Milling Systems

The 63×3 grader works best alongside:

• Rice milling machines
• Rice polishers
• Paddy separators

Together, these create a complete rice processing line.

Future of Rice Processing: Quality-Driven Markets

The rice industry is shifting toward:

• Higher quality standards
• Export compliance
• Value-based pricing

Machines like the 63×3 white rice grader are becoming essential rather than optional.

The Machine That Unlocks Value

The 63×3 white rice grader does not increase production capacity.

It increases profitability per ton.

By:

• Separating rice into distinct commercial grades
• Improving product consistency
• Enabling premium pricing

It transforms a rice mill into a high-efficiency, value-driven operation.

FAQ Section

What does a rice grader do?

A rice grader separates milled rice into different sizes, typically dividing whole grains from broken rice. This improves product consistency, allows better pricing segmentation, and ensures the rice meets market or export quality standards.

Why is rice grading important in a rice mill?

Rice grading is critical because it directly impacts profitability. By separating rice into different quality levels, mills can sell each category at different prices instead of averaging everything into a lower-value product.

What does 63×3 mean in a rice grader?

The “63×3” refers to the machine’s size and its three-layer sieve structure. This design allows the machine to separate rice into three distinct categories, improving grading precision compared to simpler two-layer systems.

How does a 3-layer rice grader improve profitability?

A 3-layer rice grader enables more accurate separation between whole rice, large broken, and small broken grains. This allows mills to maximize pricing for each category, typically increasing revenue by 8–15% per ton processed.

Can a rice mill operate without a rice grader?

Yes, but it is not recommended for commercial operations. Without grading, rice is sold as a mixed product, which reduces its value and limits access to premium or export markets.

What is the capacity of a 63×3 white rice grader?

A typical 63×3 white rice grader has a capacity of approximately 1 to 2.5 tons per hour, depending on the model and operating conditions. It is suitable for small to medium-sized rice mills.

What is the difference between a rice grader and a rice polisher?

A rice polisher improves the appearance of rice by smoothing its surface, while a rice grader separates rice based on size. Both machines are essential but serve completely different functions in the rice milling process.

Which markets require rice grading machines the most?

Rice grading machines are in high demand in regions such as India, the Philippines, Nigeria, Tanzania, and Vietnam, where rice quality standards and export requirements are increasing.

How do I choose the right rice grader for my mill?

You should consider capacity, number of sieve layers, durability, and maintenance requirements. A 3-layer grader like the 63×3 is ideal for mills aiming to improve product quality and profitability.

How much can a rice grader increase revenue?

Based on industry data and real-world cases, a rice grader can increase revenue by 8% to 15% by enabling better product segmentation and pricing strategies.

Contact Starlight Machinery 

Looking to upgrade your rice mill and increase profitability?

📩 Email: admin@starlightmachinery.com
🌍 Website: https://starlightmachinery.com