Nov
grain destoner technical analysis and manufacturing specifications
Our factory supplies high-performance Double Air Screen Cleaners with 3–7 TPH capacity and 99% purity for cleaning sesame, chia, and grains. The equipment is CE and SGS certified.
The Double Air Screen Cleaner is a high-efficiency industrial cleaning solution engineered specifically for the primary processing of oilseeds and grains. Using a dual-stage air aspiration system and a precision vibration grader, this machine effectively removes dust, husks, and light impurities, delivering a cleaning efficiency of up to 98%. It is an essential solution for exporters and processing facilities worldwide.
Designed for versatility and precision, the system can classify materials into large, medium, and small sizes using configurable sieve layers. Whether you are processing sesame, sunflower seeds, or chia seeds, the secondary air screen helps achieve final product purity of up to 99% by removing remaining light contaminants, supporting the strictest international quality requirements for the global seed market.
| Cleaning Capacity | 3–7 tons per hour | Final Product Purity | Up to 99% |
|---|---|---|---|
| Sieve Surface Area | Up to 1.2–2.4 m² | Cleaning Efficiency | 98%–99% |
| Material Classification | Large, Medium, Small | Screen Type | Double Air Screen |
| Key Components | Japan high-quality bearings | Motor Grade | Industrial high-quality |
| Elevator Type | Low-speed bucket elevator | Applicable Seeds | Sesame, Sunflower, Chia, etc. |
Achieves up to 99% purity, specifically optimized for high-value seeds such as sesame and chia.
Processing capacity of 3 to 7 tons per hour to meet industrial production demands.
Double air screens remove light impurities twice, delivering superior cleaning performance.
Configurable sieve layers enable accurate classification of different particle sizes.
Low-speed bucket elevators help prevent seed breakage during material transport.
Proven performance in Nigeria, Mexico, Poland, and Peru, with 100+ units sold annually.





Easily switch between sesame, soybeans, coffee beans, and chickpeas.
Sieve assemblies are designed for quick and easy replacement to minimize downtime.
Systematically removes dust, husks, and oversized contaminants.
Dual air screening helps ensure that only the cleanest seeds reach the final packaging.
Effectively handles high-impurity raw materials.
Optimized motor and bearing systems help reduce energy consumption per ton.
| Feature | Standard Cleaner | Double Air Screen Cleaner |
|---|---|---|
| Final Purity | 90%–95% | Up to 99% |
| Cleaning Stages | Single stage | Dual stage (Air + Vibration) |
| Seed Damage Rate | Moderate | Ultra-low (Low-speed elevator) |
| Versatility | Limited crops | Wide range (Sesame, Chia, Coffee) |
| Export Grade | Basic | Premium export standard |
It is highly effective for light seeds such as sesame, sunflower seeds, chia seeds, quinoa, and alfalfa seeds, as well as pulses including soybeans and mung beans.
No. The machine can separate stones of different sizes from the grain, but it cannot remove stones that are exactly the same size as the seed.
The first screen removes the majority of light impurities. The secondary screen then re-cleans the product, removing remaining fine dust and light particles to achieve up to 99% purity.
Yes. The machine is designed for easy sieve replacement, enabling you to switch between different material sizes (large, medium, small) quickly.
Depending on the seed type and impurity level, the cleaning capacity ranges from 3 to 7 tons per hour.
No. We use a non-broken low-speed bucket elevator to ensure that seeds and grains are transported without physical damage.