Rotary Tray Dryer
Industrial Drying Equipment
- Drying area 3.3-168m²
- Power 1.1-18.5kW
The rotary tray dryer is a highly efficient continuous conductive dryer utilizing an indirect heating system, designed for uniform moisture removal from powders and granules. We offer this industrial drying equipment in various configurations, including atmospheric, sealed, vacuum, and positive pressure types, to suit a wide range of drying requirements.
It is available in six diameter models (Ø800, Ø1200, Ø1500, Ø2200, Ø2500, Ø3000) and constructed from carbon steel, stainless steel, or titanium, with drying areas ranging from 4 to 180 m². With over 300 model variations, the dryer can be customized with auxiliary equipment to meet specific needs for efficiently removing moisture from various materials. The rotary tray dryer is widely used for drying, cooling, calcination, and solvent recovery of free-flowing powders and granules across industries such as lithium battery materials, chemicals, and pharmaceuticals.
The drying process begins with the material being fed onto the top tray of the dryer through a feed chute. A rotating arm equipped with special blades gently stirs and moves the material along a spiral path across the tray. Once it reaches the outer edge, the material falls to the next lower tray, alternating between smaller and larger trays as it moves downward through the dryer, allowing for gradual and consistent drying. This alternating tray design enables a smooth, uninterrupted flow of material throughout the entire system. Heating media such as steam, hot water, or thermal oil is circulated inside each drying tray, entering from one end and exiting from the other to ensure uniform heat transfer.
Dried material is discharged from the bottom layer, while moisture-laden air is drawn off from the top for exhaust gas treatment. The dry product can then proceed directly to packaging.
The rotary tray dryer is widely used for powder and granule drying in the chemical and pharmaceutical industries, as well as for drying food additives and functional ingredients in the food processing sector.
| Model | Outer diameter (mm) | Height (mm) | Drying area (m²) | Power (kW) | Model | Outer diameter (mm) | Height (mm) | Drying area (m²) | Power (kW) |
| Ø1865 | 2877 | 3.3 | 1.1 | Ø3115 | 3981 | 26.3 | 4 | ||
| 3297 | 4.9 | 4401 | 35 | ||||||
| 3717 | 6.6 | 1.5 | 4821 | 43.8 | 5.5 | ||||
| 4137 | 8.2 | 5241 | 52.5 | ||||||
| 4557 | 9.9 | 2.2 | 5661 | 61.3 | 7.5 | ||||
| Ø2166 | 3327 | 8 | 6081 | 70 | |||||
| 3747 | 10.7 | 6501 | 78.8 | 11 | |||||
| 4167 | 13.4 | 6921 | 87.5 | ||||||
| 4587 | 16.1 | 3 | 7341 | 96.3 | |||||
| 5007 | 18.8 | 7761 | 105 | 15 | |||||
| 5247 | 21.5 | 8181 | 113.8 | ||||||
| Ø2820 | 3781 | 18.5 | Ø3768 | 5143 | 48 | 11 | |||
| 4201 | 24.6 | 5643 | 60 | ||||||
| 4621 | 30.8 | 4 | 6143 | 72 | |||||
| 5041 | 36.9 | 6643 | 84 | ||||||
| 5461 | 43.1 | 5.5 | 7143 | 96 | |||||
| 5881 | 49.3 | 7643 | 108 | 15 | |||||
| 6301 | 55.4 | 7.5 | 8293 | 120 | |||||
| 6721 | 61.6 | 8793 | 132 | 18.5 | |||||
| 7141 | 67.7 | 11 | 9293 | 144 | |||||
| 7561 | 73.9 | 9793 | 156 | ||||||
| 7981 | 80 | 10293 | 168 |
How long does the drying process take in a rotary tray dryer?
What are the key factors that affect drying efficiency?
Drying efficiency is influenced by several factors, including:
- Material properties (e.g., initial moisture content, particle size)
- Target final moisture level
- Operating conditions (e.g., temperature, steam pressure, shaft speed)
- Design parameters (e.g., number of trays, heat transfer surface area)
How can the moisture content of the final product be controlled?
To maintain optimal moisture levels, consider the following:
- Adjust temperature and rotation speed appropriately
- Control the feeding rate and main shaft speed
- Monitor and fine-tune the operation regularly
- Account for the specific properties of the material being dried
- Perform routine inspection and maintenance
From dryers and evaporators to crystallizers and turnkey systems, our team is ready to help you move forward with the right solution.
