The Coix Seed Hulling Machine is the core component of any coix seed processing line. The QMTP-30 Coix Seed Huller, independently developed and manufactured by Win Tone Machinery, plays a pivotal role in efficient processing....
The Coix Seed Hulling Machine is the core component of any coix seed processing line. The QMTP-30 Coix Seed Huller, independently developed and manufactured by Win Tone Machinery, plays a pivotal role in efficient processing.

Widely used in client factories, this machine is renowned for its high hulling rate, low breakage rate, large capacity, and automatic shell-kernel separation.
Centrifugal Hulling Structure
Under the combined action of the emery disk and wear-resistant alloy blades, the hull is separated from the kernel, revealing the yellow coix seed. Subsequent gravity separation and aspiration equipment then remove the shells to select clean kernels for the next polishing stage.
Performance: Single-pass hulling rate exceeds 75%, offering a significantly higher whole-kernel yield compared to other manufacturers.

Principle of the Coix Seed Whitening (Polishing) Machine
Designed specifically for the unique structure of coix seeds, this machine utilizes an emery roller for skin removal. As the seeds rotate within the whitener, the yellow seed coat is uniformly rubbed against the emery roller and sieve, resulting in clean, white kernels. This process minimizes breakage and maximizes the yield of finished products.

The Coix Seed Processing Flow
Cleaning → Hulling → Whitening → Color Sorting → Grading → Packaging
Cleaning: Raw coix seeds are lifted into a vibrator screener to remove large and light impurities. The material then passes through a gravity destoner equipped with a magnetic separator.
Hulling: The cleaned material is graded and fed into the hulling machine. This ensures stable and effective separation of the hull from the kernel based on size grades.
Whitening: The hulled seeds (now in two grades) enter our proprietary Coix Seed Whitening and Brushing Machines. This step polishes the kernels to enhance surface smoothness and brightness.
Color Sorting: Seeds enter the color sorter, which separates them based on subtle color differences to ensure purity.
Grading: Finally, the sorted kernels are graded by particle size to maximize the commercial value of the finished product.


Key Features of Win Tone Coix Seed Processing Machinery
Proprietary Technology
Our wear-resistant peeling rollers and sieves are specifically designed for coix seeds, ensuring stability and durability even in high-capacity production lines.
Gravity Separation
To handle the complex impurities often found in raw coix seeds, we have strengthened the cleaning process by introducing gravity separation. This effectively removes immature or unfilled grains, significantly improving product quality.
Superior Hulling & Whitening
Win Tone’s specialized hullers and whiteners not only increase the yield but also enhance the quality of the final product. The processed kernels are clean, intact, and retain their original flavor.
Automated Control System
Integrating technologies from corn, highland barley, and rice processing, our system includes advanced dust removal and automation controls. This ensures precise quality control and a clean, dust-free workshop, aligning with green production standards.
Contact Us
Tel: +86 371 86159555
Email: info@wintonemachinery.com
Website: https://www.wintonemac.com
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