The fluidized bed dryer lab scale is a multi-functional processing unit capable of drying, granulation, solution coating, and powder layering.
Our laboratory-scale model enables coating experiments with batch sizes ranging from 50 to 200 grams.
It is suitable for laboratories, research institutes, and universities to conduct process development and compare experimental data.
The system supports top-spray, bottom-spray configurations with interchangeable modules, enabling: Granulation, Coating, Pelletization, Functional Layering.
Our fluid bed dryer system features user-friendly operation, high productivity, and exceptional versatility, with a compact, stable, and reproducible design.
Working Principle & Process of Laboratory Fluid Bed Dryer
Material is suspended by clean, heated air (under negative pressure), achieving a fluidized state for uniform heat exchange and maximum efficiency.
Equipped with an optional spray system and structural enhancements, the fluid bed processor becomes a multipurpose unit capable of:
- Drying
- Granulation
- Solution Coating
- Powder Layering
Key Features of Our Lab Fluid Bed Dryer
Multifunctional – Single-unit solution for drying, granulation, solution coating and powder layering.
Precision Coating – Uniform functional or drug layering on powders, granules, or pellets.
GMP-Compliant Design – Micron-grade filters ensure product purity, dust-free operation under negative pressure.
Narrow Particle Distribution – Doubled yield vs. traditional jet mills or crushers.
Built-In Air Dryer – Automatically removes moisture from compressed air.
Touchscreen Control – Intuitive animated interface for fully automated operation, reducing labor costs.
Energy-Efficient – Variable-frequency fan minimizes power consumption and noise.
Compact & Mobile – Easy disassembly, cleaning, and sterilization with no dead corners.
Optimized Airflow – Uniform distribution for consistent product quality and reproducibility.
Superior Granules – High sphericity, minimal fines, and excellent flowability.
Low-Temperature Processing – Preserves heat-sensitive active ingredients.
GMP-Ready – Simple structure, rapid changeover, and full compliance.
Technical Specifications
Process Technologies
Top-Spray Granulation
Binder solution is sprayed onto fluidized powder, forming nuclei that grow via liquid bridging into uniform granules.
Bottom-Spray (Wurster) Coating
A differential airflow design with a central Wurster column accelerates particles upward in a fountain-like motion, while bottom-mounted spray nozzles apply coating layers with precision.
Tangential-Spray Powder Coating
A rotating disk (flat or conical) and specialized airflow enable powder-liquid binding for applications like:
Moisture protection
Taste masking (e.g., orally disintegrating tablets)
Functional layer encapsulation
Applications
This system enables dry, high-purity, low-temperature processing of ultrafine powders for:
Pharmaceuticals (APIs, antibiotics, TCM extracts)
Food & Additives (probiotics, flavors)
Chemicals (pigments, battery materials)
Minerals (quartz, talc, calcium carbonate)
Advanced Materials (PTFE, ceramics, abrasives)
Processed Materials (Examples)
Diamond, SiC, iron phosphate, nano CaCO₃, silica, diatomite, bentonite, mica.
High-purity pigments, luminescent powders, Li-ion battery materials.
Food additives, herbal extracts (ganoderma, pearl powder), antibiotics, contrast agents.
More Details of Lab Fluid Bed Dryer
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