Nov
grain destoner technical analysis and manufacturing specifications
Our factory supplies high-performance gravity destoners with a 7–20 tons per hour capacity for reliable seed and grain cleaning. It is designed to achieve 100% stone removal for sesame, beans, groundnuts, and rice. Professional seed cleaning solutions are available with CE, SGS, and SONCAP certification.
Our high-performance Gravity Destoner is a professional-grade solution designed to remove heavy impurities—specifically stones—from a wide range of grains, legumes, and seed crops. By leveraging a coordinated combination of specific gravity, controlled airflow, and precision vibration, this machine effectively separates contaminants that are similar in size to the target material, delivering a high-purity output for the most demanding agricultural processing requirements.
Built for versatility and long-term durability, the Destoner is suitable for various product formats, from small particles such as sesame and millet to medium and large seeds including soybeans, mung beans, chickpeas, and coffee beans. By integrating this equipment into your production line, you can protect downstream machinery from damage, reduce dependence on manual sorting, and significantly improve the overall purity and market value of your processed seeds.
| Cleaning Capacity | 7–20 tons per hour | Bearing Brand | High-quality Japan bearing |
|---|---|---|---|
| Sieve Material | Stainless steel woven sieves | Table Material | Imported USA beech wood |
| Surface Finish | Sandblasted anti-rust coating | Adjustability | Variable vibration frequency |
| Material Compatibility | Small, medium, and large particles | Core Principle | Gravity, airflow, and vibration |
| Application Scope | Sesame, coffee, soybeans, pulses | Operation Mode | Stable & simple operation |
Equipped with imported USA beech wood and a sandblasted finish to help prevent rust and water damage for long-term use.
Processing capacity of 7 to 20 tons per hour, helping to significantly reduce production bottlenecks.
Advanced gravity separation removes heavy stones effectively, improving the final grade of your product.
Adjustable frequency settings support efficient switching between sesame, coffee beans, and various legumes.
By removing stones early, it helps prevent critical damage to downstream processing and polishing equipment.
Uses Japanese bearings and high-quality motors to support consistent operation and minimal downtime.
Efficiently categorizes materials based on specific gravity to help achieve stone-free output.
Precise adjustment of vibration frequency to match different seed densities.
Optimized airflow to help float lighter grains while allowing heavier stones to drop.
Helps reduce waste and supports improved recovery rates of high-value seeds and grains.
Seamlessly integrates with cleaners, graders, and color sorters within a full processing plant.
Designed for easy access to bearings and sieves to support quick routine maintenance.
| Metric | Manual Sorting | Gravity Destoner |
|---|---|---|
| Labor Cost | Extremely high | Minimal |
| Cleaning Purity | Inconsistent | High & stable |
| Processing Speed | Very slow | 7–20 tons/hour |
| Downstream Wear | High risk | Significantly reduced |
| ROI Period | N/A (ongoing expense) | Fast (increased yield) |
Our destoner is versatile and can process small particles (sesame, millet), medium particles (soybeans, mung beans), and large particles (coffee beans, adzuki beans, and broad beans).
It uses the principle of specific gravity. By combining airflow and vibration, heavier materials such as stones sink while lighter grains rise, even when they have similar physical dimensions.
Yes. The machine features highly adjustable vibration frequency and air volume controls to support optimal cleaning for different seed specifications.
We use stainless steel woven sieves and a specialized sandblasted exterior finish to help protect the equipment from rust and water damage.
It increases yield by reducing the need for manual sorting and helps prevent heavy debris from damaging downstream equipment such as polishers or color sorters.
Depending on the material and operating settings, the machine provides a cleaning capacity of 7 to 20 tons per hour.