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PRELI Pre-Cleaner
Product Overview
Model in Photo: PRELI-2
The PRELI Pre-Cleaner is an essential machine used in agricultural processing systems to remove impurities from grains, seeds, and coffee before further processing such as drying, grading, or storage.
The machine combines aspiration and screening technologies to separate impurities according to differences in size and weight. This process ensures that the product entering the next stage of processing is clean and suitable for efficient drying, milling, or storage.
The PRELI can be installed before or after the drying stage, making it a flexible and important component in grain processing plants. By replacing the screens, the machine can process a wide range of agricultural products.
Key Features
• Dual-stage cleaning system (aspiration + screening)
• Vibrating screen box for effective separation
• Adjustable air flow control valves
• Self-cleaning screen system using rubber balls
• Replaceable screens for different agricultural products
• Inspection window for monitoring aspiration efficiency
• Heavy-duty metallic structure for industrial operation
• Integrated fan system for removal of light impurities
Applications
The PRELI Pre-Cleaner is widely used in agricultural processing facilities to clean grains and seeds before drying, milling, or storage.
Typical applications include:
• Coffee processing plants
• Grain processing facilities
• Seed processing plants
• Agricultural cooperatives
• Post-harvest processing systems
Products that can be processed include:
• Coffee (dry cherry or parchment)
• Corn
• Soybeans
• Wheat
• Rice
• Other cereal grains and seeds
How It Works
The PRELI Pre-Cleaner separates impurities in three main stages:
1. Initial Aspiration
Light impurities such as dust and lightweight particles are removed through an airflow system powered by a fan.
2. Screening
The product passes through vibrating screens where:
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Large impurities remain on the upper screen
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Fine impurities pass through the lower screen
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Good product continues through the cleaning process
3. Final Aspiration
The cleaned product undergoes a second airflow separation to remove any remaining light particles before exiting the machine.
This multi-stage cleaning process ensures efficient separation and improved product quality.
Available Models
The PRELI series includes several models designed for different processing capacities:
| Model | Typical Capacity Range |
|---|---|
| PRELI-1 | 4,800 – 12,000 kg/h |
| PRELI-2 | 8,000 – 20,000 kg/h |
| PRELI-3 | 12,000 – 30,000 kg/h |
Capacity depends on product type, moisture level, and impurity percentage.
Optional Equipment
The PRELI system can be configured with optional accessories including:
• Cyclone and dust filter for collection of light impurities
• Plate magnet for removing metallic particles from incoming grain
• Additional screens for processing different crops
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