Fluidized Bed Jet Mill
Fluidized Bed Jet Mill
Combines supersonic jet grinding with vortex classification in a single unit. D97 down to 2 µm, suited for continuous production of battery materials, pharmaceutical APIs, ceramic powders, and specialty chemicals.
Working Principle
Process Flow
Supersonic Jet
Particle Collision
Precise Separation
Collection
Key Features
Precise Particle Size Control
Stepless classifier speed adjustment. D97 2–150 µm can be set accurately with high batch-to-batch consistency.
Zero Grinding Media Contamination
Particle-to-particle self-impact grinding — no grinding balls or liners wearing into the product. Suitable for high-purity powders.
Low Temperature Rise
Adiabatic gas expansion provides a cooling effect, making the system suitable for heat-sensitive APIs and active materials.
Continuous Operation
Fluidized bed design supports extended continuous production runs, suited for large-scale manufacturing.
Ceramic Lining Option
Grinding chamber and nozzles can be fitted with full ceramic lining for battery cathode materials and pharmaceutical high-purity applications.
Inert Gas Compatible
Can be integrated with N₂ or Ar protection systems for safe grinding of flammable or oxidation-sensitive powders.
Applications by Industry
| Industry | Typical Materials |
|---|---|
| Battery & New Energy | Cathode materials (NCM, LFP, LCO), anode graphite, solid-state electrolyte |
| Pharmaceutical | APIs, herbal extracts, excipients, inhalation powders |
| Advanced Ceramics | Alumina, zirconia, silicon carbide, silicon nitride |
| Fine Chemicals | Catalysts, specialty coatings, pesticides, dyes |
| Minerals | Barium sulfate, calcium carbonate, kaolin, mica |
Model Specifications
The figures below are reference values for typical materials. Actual capacity varies with material density, hardness, and target particle size.
| Model | Ref. Capacity | Product Size D97 | Feed Size |
|---|---|---|---|
| DWQ-2A | 0.5–20 kg/h | ≥2.5 µm | ≤10 mm |
| DWQ-5A | 5–50 kg/h | ≥2.5 µm | ≤10 mm |
| DWQ-10A | 20–100 kg/h | ≥2.5 µm | ≤10 mm |
| DWQ-20A | 80–400 kg/h | ≥2.5 µm | ≤10 mm |
| DWQ-30A | 200–1000 kg/h | ≥2.5 µm | ≤10 mm |
| DWQ-40A | 400–2000 kg/h | ≥2.5 µm | ≤10 mm |
Request a Selection Proposal
Material name, target particle size, capacity, and safety requirements are the key inputs for equipment selection. The more detail you provide, the more accurate the proposal. Sample testing is recommended before final selection.
- Material name, application, and safety risks (flammable / oxidation-sensitive)
- Target particle size: D50 / D90 / D97 or residue specification
- Hourly capacity and continuous run duration
- Whether ceramic lining or inert gas protection is required
Contact Us
Send your material parameters and requirements. We will provide an initial selection recommendation and sample testing plan.
Submit Inquiry Arrange Sample TestingPhone: 0816-2680206
Frequently Asked Questions
How fine can a fluidized bed jet mill grind?
Typically D97 5–150 µm and D50 1–50 µm for common materials. With optimized parameters, finer results are achievable on certain materials. Actual fineness depends on hardness, brittleness, and target particle size — sample testing is recommended to confirm.
What are the advantages over mechanical grinding?
Jet milling uses particle-to-particle self-impact with no grinding media, resulting in lower temperature rise, less metal contamination, and narrower particle size distribution. It is preferred for heat-sensitive materials and high-purity applications. Mechanical grinding generally offers higher capacity at lower cost but is not suited where purity and temperature are critical.
Is ceramic lining standard or optional? Which materials require it?
Ceramic lining is optional. It is typically required for battery cathode/anode materials, pharmaceutical APIs, and high-purity ceramic powders (alumina, zirconia) where metal contamination must be minimized. For general chemicals and minerals with less stringent purity requirements, standard configuration is usually sufficient.
Can flammable or explosive powders be processed?
Yes, with an inert gas protection system. Nitrogen or argon replaces compressed air as the working gas, keeping oxygen below the safe threshold. Explosion-proof electrical components and interlock protection are also configured to ensure safe operation.
How do we confirm the equipment suits our material?
We recommend sending a material sample (typically 1–5 kg) for a trial run. The test report confirms target particle size achievability, capacity trend, wear risk, and system configuration recommendation, before formal quotation and order.