Cylindrical Seed Screening – Cylindrical Seed Grader

The Cylindrical Screening Machines & Seed Grader deliver high-efficiency sorting for seeds, grains, and cereals. Featuring centrifugal force sorting, modular screening cylinders, and an adjustable inclination system, this grader ensures maximum precision and high-purity output.

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Cylindrical Seed Screening & Cylindrical Seed Grader – Precision Seed Grading & Cleaning Solution

MMCTECH Cylindrical Seed Screening & Cylindrical Seed Grader are engineered for high-efficiency grading and cleaning of all types of seeds and grains, including wheat, barley, corn, rice, soybeans, lentils, chickpeas, sunflower, sesame, flax, mustard, poppy, cocoa, grass seeds, and more.

Cylindrical Seed Grader High-Precision Seed & Grain Graders

These advanced seed graders use centrifugal force and modular drum screening technology to separate seeds by thickness and diameter with unmatched precision. Ideal for seed processing plants, grain cleaning facilities, and agricultural operations, this system ensures superior purity and uniformity for planting, packaging, or food-grade applications. Perfect for those searching for seed cleaning machines, grain separators, wheat cleaning systems, or seed grading equipment.

Enhance Seed & Grain Sorting Efficiency with MMCTECH’s Cylindrical Seed Screening & Cylindrical Seed Grader

The Cylindrical Seed Screening Seed & Cylindrical Seed Grader are engineered for high-precision seed and grain grading, ensuring maximum efficiency, accuracy, and energy savings. These advanced cylindrical seed graders provide versatile sorting solutions for wheat, maize, sunflower seeds, rice, legumes, pulses, and other granular products, making them the ideal choice for seed processors in North America, Canada, and beyond.


Why Choose MMCTECH Cylindrical Seed Screening & Cylindrical Seed Grader?

Cylindrical Seed Screening Designed for superior efficiency and adaptability, these machines incorporate a modular system, centrifugal force sorting, and adjustable screening inclination, optimizing grading results while reducing operational costs.

Key Features & Benefits

✔ Energy-Efficient Drive System – A single motor powers up to three cylinders, reducing energy consumption.
✔ Advanced Sorting Technology – Sorts seeds based on width (round perforation) and thickness (slotted perforation).
✔ Centrifugal Force Sorting – Ensures consistent kernel contact with the screen perforation, improving grading accuracy.
✔ Modular & Scalable System – Up to three cylinders can be installed in parallel or series for customized sorting applications.
✔ Adjustable Screen Inclination – Allows for precision control of throughput between 0 and 2.5°.
✔ Parallel & Series Operation Options – Provides flexibility in sorting configurations for different product flows.
✔ Permanent Screen Cleaning – Prevents blockage of screen holes, ensuring uninterrupted operation.
✔ Quick Screen Replacement – Simplifies maintenance, improving machine efficiency and reducing downtime.
✔ Versatile Product Compatibility – Suitable for seeds, grains, cereals, sunflower seeds, rice, and even recycling materials.
✔ Customizable Drive Options – Can be equipped with frequency inverter or mechanical speed variator gear.


How the CS 300 / 500 / 700 Cylindrical Seed Screening & Cylindrical Seed Grader Work

The CS 300 / 500 / 700 Cylindrical Screening & Cylindrical Seed Grader integrate mechanical screening, centrifugal force sorting, and modular screening cylinders to achieve exceptional grading results.

Step-by-Step Seed Screening Process

🔹 Step 1 – Product Feeding & Distribution: The material enters the screening cylinder, ensuring even seed flow.
🔹 Step 2 – Centrifugal Sorting Mechanism: The continuous rotation of the screening cylinder generates centrifugal force, forcing each kernel to make contact with the screen perforation.
🔹 Step 3 – Screening & Separation: Thinner kernels pass through perforations, while oversized kernels move to the end outlet.
🔹 Step 4 – Adjustable Screen Inclination: The sieve angle can be modified to control grading precision.
🔹 Step 5 – Permanent Screen Cleaning: The self-cleaning system prevents blockage, maintaining optimal screening efficiency.


Parallel vs. Series Operation – Maximizing Sorting Efficiency

Parallel Operation

The grain flow is divided into separate inlet channels, allowing each cylinder to process a portion of the product.
Oversized kernels exit at the end of each cylinder, while smaller particles bypass the following cylinder.

Series Operation

Material passing through the upper cylinder is fed to the next cylinder’s inlet, allowing for multi-stage screening.
Oversized particles exit at the final cylinder, ensuring refined grading precision.


Applications of the CS 300 / 500 / 700 Cylindrical Seed Screening & Cylindrical Seed Grader

The CS Series Cylindrical Seed Screening & Cylindrical Seed Grader are optimized for various industrial seed grading and sorting applications, including:

🔹 Seed processing plants – Ensures high-purity seeds for planting and packaging.
🔹 Grains cleaning operations – Ideal for wheat, barley, oats, rice, rye, quina, spelt, millet, buckwheat and corn seed cleaning.
🔹 Legumes cleaning operations – Ideal for chickpeas, yellow pea, pigeon pea, green pea, lentils, beans, and pulses seed cleaning.
🔹 Oilseed processing – Optimized for sunflower, sesame, soybean flax, hazelnut, lin seed, mustard, peanut, pumkin,and canola seed cleaning.
🔹 Garden Seeds cleaning operations – Ideal for Lettuce, Melon,  Onion, parsley, tomato, radishes, dill seed cleaning.
🔹 Grass Seeds cleaning operations –
Ideal for Alfalfa, clover,poppy, coffee beans, grass seeds, cocoa bean seed cleaning.
🔹 Grass & specialty seed cleaning – Handles small, lightweight seeds with precision.


Technical Highlights

Feature Function
Energy-Efficient Drive System Powers up to three cylinders with a single motor
Adjustable Screen Inclination Allows precision control for optimized sorting
Modular Cylinder System Configurable in parallel or series operation
Permanent Screen Cleaning Prevents blockage for uninterrupted performance
Quick Screen Exchange Enables easy maintenance & efficiency

Cylindrical Seed Screening & Cylindrical Seed Grader – Precision Seed Grading & Cleaning Solution

MMCTECH Cylindrical Seed Screening Machines are engineered for high-efficiency grading and cleaning of all types of seeds and grains, including wheat, barley, corn, rice, soybeans, lentils, chickpeas, sunflower, sesame, flax, mustard, poppy, cocoa, grass seeds, and more. These advanced seed graders use centrifugal force and modular drum screening technology to separate seeds by thickness and diameter with unmatched precision. Ideal for seed processing plants, grain cleaning facilities, and agricultural operations, this system ensures superior purity and uniformity for planting, packaging, or food-grade applications. Perfect for those searching for seed cleaning machines, grain separators, wheat cleaning systems, or seed grading equipment.

📞 Get in Touch – Get expert advice on the right seed processing solutions for your facility.

📹 Watch on YouTube – See our cleaning, sorting, and automation systems in action.

Cylindrical Screening Seed Graders Datasheet

Frequently Asked Questions

What is a seed cylinder?


A seed cylinder is the rotating perforated drum used in cylindrical seed screening machines to sort seeds based on thickness and diameter. It enables precise grading by allowing smaller seeds to pass through the holes while larger ones are carried to the discharge outlet.



What is the function of cylindrical seed screening machines?


Cylindrical seed screening machines are used to clean and grade seeds and grains by separating oversized, undersized, and lightweight impurities using centrifugal force and rotating drum cylinders. This improves seed purity and uniformity for packaging, planting, or food-grade use.



How does the MMCTECH Cylindrical Seed Screening Machine improve seed purity?


The MMCTECH Cylindrical Seed Screening Machine uses centrifugal force and modular screening cylinders with adjustable inclination to sort seeds with high accuracy. It removes light particles and separates seeds by thickness, ensuring 99.99% purity in seed processing.



Which types of seeds can be cleaned with the MMCTECH Cylindrical Screening Machine?


This machine is compatible with a wide range of seeds, including wheat, barley, corn, rice, sunflower, flax, sesame, mustard, poppy, coffee beans, legumes, pulses, and grass seeds. It’s suitable for industrial seed processing plants and food-grade cleaning operations.

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