HighPerformance Gravity Destoner Machine China Factory and Suppliers

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.

Detailed Parameters

Cleaning Capacity7–20 tons per hourBearing BrandHigh-quality Japan bearing
Sieve MaterialStainless steel woven sievesTable MaterialImported USA beech wood
Surface FinishSandblasted anti-rust coatingAdjustabilityVariable vibration frequency
Material CompatibilitySmall, medium, and large particlesCore PrincipleGravity, airflow, and vibration
Application ScopeSesame, coffee, soybeans, pulsesOperation ModeStable & simple operation

Key Advantages

Premium Durability

Equipped with imported USA beech wood and a sandblasted finish to help prevent rust and water damage for long-term use.

High Efficiency

Processing capacity of 7 to 20 tons per hour, helping to significantly reduce production bottlenecks.

Superior Purity

Advanced gravity separation removes heavy stones effectively, improving the final grade of your product.

Versatile Application

Adjustable frequency settings support efficient switching between sesame, coffee beans, and various legumes.

Equipment Protection

By removing stones early, it helps prevent critical damage to downstream processing and polishing equipment.

Stable Performance

Uses Japanese bearings and high-quality motors to support consistent operation and minimal downtime.

Product Gallery

Management Platforms

Material Sorting

Efficiently categorizes materials based on specific gravity to help achieve stone-free output.

Frequency Control

Precise adjustment of vibration frequency to match different seed densities.

Airflow Optimization

Optimized airflow to help float lighter grains while allowing heavier stones to drop.

Yield Monitoring

Helps reduce waste and supports improved recovery rates of high-value seeds and grains.

Process Integration

Seamlessly integrates with cleaners, graders, and color sorters within a full processing plant.

Maintenance Alerts

Designed for easy access to bearings and sieves to support quick routine maintenance.

Investment Return Comparison

MetricManual SortingGravity Destoner
Labor CostExtremely highMinimal
Cleaning PurityInconsistentHigh & stable
Processing SpeedVery slow7–20 tons/hour
Downstream WearHigh riskSignificantly reduced
ROI PeriodN/A (ongoing expense)Fast (increased yield)

Frequently Asked Questions

Q: Which types of seeds can the gravity destoner process?                                    

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).

Q: How does the machine separate stones from grains of the same size?                                    

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.

Q: Can the vibration frequency be adjusted for different crops?                                    

Yes. The machine features highly adjustable vibration frequency and air volume controls to support optimal cleaning for different seed specifications.

Q: What materials are used to help prevent rust?                                    

We use stainless steel woven sieves and a specialized sandblasted exterior finish to help protect the equipment from rust and water damage.

Q: How does a destoner improve the efficiency of a seed processing plant?                                    

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.

Q: What is the average capacity per hour for this model?                                    

Depending on the material and operating settings, the machine provides a cleaning capacity of 7 to 20 tons per hour.

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