Belt Dryer Machine (also known as a Conveyor or Mesh Belt Dryer) is the preferred choice for large-scale, continuous drying of sensitive food items like fish, spices, and vegetables. Unlike batch tray dryers, these machines move the product through different temperature zones, ensuring uniform moisture removal without damage.

1. Technical Specifications for Food & Fish

For multi-purpose use, the machine must handle different temperature profiles (fish requires a lower, more delicate heat than spices).

2. Why use a "Multi-Layer" Belt Dryer?

• Automatic Flipping: When the product falls from the top belt to the bottom belt, it naturally "flips." This ensures the underside of the fish or vegetable slice also gets dried perfectly.
• Continuous Operation: You can feed raw material at one end and collect dried product at the other 24/7.
• Zonal Temperature Control: You can set the first section to high heat (to remove surface water) and the final section to low heat (for deep drying), which is critical for spices to retain their aroma (essential oils).

3. Integrated Components

1. Feeder/Distributor: A "Vibratory Feeder" or "Oscillating Spreader" is used to spread fish or vegetables evenly across the belt width. If the layer is too thick, the middle won't dry.
2. Air Circulation: High-velocity fans circulate hot air vertically through the mesh belt.
3. Exhaust System: A moisture-exhaust fan removes the humid air, while a heat recovery system can reuse the dry air to save fuel.
4. Cooling Zone: The last 1-2 meters of the belt often use ambient air to cool the product so it can be packed immediately.