Key Advantages

• Complete Processing System – performs cleaning, destoning, hulling, repassing, and separation in one integrated unit.

• High Productivity – designed for continuous coffee milling with efficient processing capacity.

• Improved Coffee Quality – removes impurities and defective beans while separating high-quality beans.

• Efficient Use of Coffee By-Products – allows partial recovery and use of heavy husks.

• Reliable Industrial Construction – built for long-term operation in coffee processing plants.

Key Components

The CON Combined Hulling Unit integrates several machines into one processing line:

• Gravity separator (destoner)
• Coffee huller with oscillating screen
• Ventilation column for density separation
• Dust aspiration system
• Vibrating conveyor for repass of unhulled beans
• Feed conveyors and bagging chutes

Together these components create a continuous processing workflow that improves productivity and bean quality.

Processing Workflow

The system processes coffee through several stages:

1️⃣ Dust Removal – removes dust and light impurities through aspiration.

2️⃣ Destoning – gravity separator removes stones, sand, and heavy impurities.

3️⃣ Hulling – the huller removes husks from coffee beans using friction through perforated screens.

4️⃣ Screen Separation – oscillating screen separates hulled beans from defective or unhulled beans.

5️⃣ Ventilation Separation – airflow separates beans according to density.

6️⃣ Repass Cycle – unhulled beans are automatically returned for reprocessing.

This process ensures efficient separation and consistent product quality.

Processing Capacity

Available models and approximate processing capacities:

(Capacity based on 60 kg bags of coffee.)

Applications

The CON Combined Hulling Unit is suitable for:

• Coffee milling plants
• Coffee processing facilities
• Agricultural cooperatives
• Coffee exporters
• Medium and large coffee processing operations