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Batch Fluidized Bed Dryer
The Batch Fluidized Bed Dryer is built for manufacturers who need reliable, repeatable drying results without compromising product quality. This machine processes one batch at a time, so you can have more control over drying conditions and final output.
By using this machine, you can adjust, monitor, and repeat each batch with the same settings and improve overall product stability. All this makes it especially useful for pharmaceutical and food applications where consistency matters.
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Key Features
Technical Data
Machine Details
FAQ
Application Powder Types
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- Easy to Operate and Adjust: The PLC touch screen makes it simple to manage temperature, airflow, and drying time. Operators can quickly adjust settings without complex training.
- Built-in Dust Control: This machine has an integrated filtration system that captures fine particles with up to 99.9% efficiency.
- Low Noise: It operates at around ≤75 dB, making it suitable for long working hours without creating a disruptive environment.
- Consistent Product Output: Once parameters are set, the same cycle can be repeated with minimal variation. This is especially important for pharmaceutical products where consistency is necessary.
- Automated and Manual Operation: The batch bed dryer supports both automatic and manual feeding/discharge. It gives operators the flexibility based on the production speed and workflow.
| Item | Specification |
| Material of Construction: | Product contact parts: SUS316L (food/pharmaceutical grade); Frame & casing: SUS304 |
| Production Mode: | Batch operation (one batch per cycle: feeding → drying → discharging), manual or automatic feeding/discharging optional |
| Heating Method: | Steam (0.3–0.6 MPa) / Electric (380V/50Hz) / Gas (natural gas/LPG) (optional) |
| Inlet Air Temperature: | 70–140 °C (adjustable, recommended 80–110 °C for tablets) |
| Outlet Air Temperature: | 40–70 °C (adjustable, to control final moisture content) |
| Vibration Frequency: | 15–50 Hz (stepless adjustable, low amplitude to protect tablets) |
| Vibration Amplitude: | 3–8 mm (adjustable, avoiding tablet breakage and material accumulation in the drying chamber) |
| Fluidization Wind Speed: | 0.5–2.0 m/s (adjustable, preventing tablets from being blown away, ensuring uniform fluidization in batch processing) |
| Control System: | PLC + touch screen, automatic control of temperature, vibration speed, air volume and drying time; manual backup mode available; batch parameter storage function |
| Final Moisture Content: | ≤1.0–3.0% (customizable according to tablet formula requirements) |
| Dust Removal: | Pulse bag filter/cartridge filter (efficiency ≥99.9%), with dust collection drawer for easy cleaning, matching batch operation cycle |
| Noise Level: | ≤75 dB(A) (at 1m distance from the equipment) |
| Power Supply: | 380V/50Hz, 3-phase 4-wire (customizable for different regions) |
| Drying Cycle: | 15–60 minutes per batch (depends on tablet type, initial moisture and batch size) |
Storage Hoppe
Air Filter
Control Panel
Induced Draft Fan
What materials can be dried in a batch fluidized bed dryer?
What materials can be dried in a batch fluidized bed dryer?
A batch FBD dries a fixed quantity (batch) of powders/granules by suspending particles in upward-flowing hot air, creating a fluid-like "boiling bed" for uniform, fast drying.
How does it work?
How does it work?
- Load: Material into the drying chamber.
- Fluidize: Hot filtered air flows through a perforated plate, lifting particles.
- Dry: Turbulent air-particle contact evaporates moisture.
- Cool: Switch to cold air (optional).
- Discharge: Unload the full batch.
Key applications?
Key applications?
- Pharmaceuticals: Granules, APIs, tablets (GMP-compliant).
- Food: Coffee, milk powder, spices, snacks.
- Chemicals: Polymers, fertilizers, pigments.
- Nutraceuticals: Herbs, vitamins, supplements.
Batch vs. continuous FBD
Batch vs. continuous FBD
| Feature | Batch FBD | Continuous FBD |
| Operation: | Cyclic (load → dry → unload) | Steady flow |
| Volume: | Small–medium batches | High throughput |
| Traceability: | Full batch records | Less batch isolation |
| Flexibility: | Easy product/recipe changes | Fixed product lines |
| Footprint: | Compact | Larger |
What materials are suitable?
What materials are suitable?
- Good: Free-flowing granules (50–2,000 μm), uniform size
- Challenging: Very fine powders, sticky/wet lumps, fibrous materials
- Solutions: Agitators, vibratory beds, pre-conditioning
Can it granulate/coat?
Can it granulate/coat?
Yes — many batch FBDs include top/bottom spray systems for wet granulation, pellet coating, or micro-encapsulation in one unit.
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