Varahi Industries’ Lab Air Jet Mill is a precision micronizing system for laboratory and pilot-scale work. It reduces powders to sub-micron sizes with no moving parts inside the grinding chamber, delivering reproducible, contamination-free results for R&D, QC, and small-batch production in pharma, chemicals, pigments, and advanced materials.
The compact, modular design enables high efficiency, fast cleaning, and easy scale-up to production systems.
Compressed air enters via high-velocity nozzles into a cylindrical chamber.
A high-speed vortex forms; a Venturi feeder precisely meters the powder.
Particles collide at high speed, micronizing by attrition and impact.
Fine particles exit centrally; coarse particles recirculate for further grinding.
Product is collected in a cyclone or pulse-jet dust collector for high-purity output.
Key advantage: No moving parts in the grinding zone—minimal wear and contamination.
| Model | Capacity (Kg/Hr) | Air Compressor (HP) | Air FAD (CFM) | Space Required (L × W × H, m) |
|---|---|---|---|---|
| LJF-0.5 | 0.1 – 0.5 | 5 – 7 | 10 | 0.5 × 0.5 × 1 |
| LJF-1 | 0.5 – 1 | 7 – 10 | 15 | 0.6 × 0.6 × 1.2 |
| LJF-2 | 1 – 2 | 10 – 15 | 25 | 0.6 × 0.6 × 1.5 |
| LJF-5 | 3 – 5 | 15 – 20 | 40 | 1 × 1 × 1.5 |
Performance depends on material properties, feed rate, and air pressure.
| Component | Options |
|---|---|
| Construction | MS / SS 304 / SS 316 / Polymer |
| Liners | Tungsten Carbide, Ceramic, PTFE, PU, or custom |
| Discharge Type | Top or Bottom |
| Feeding System | Venturi-based precise feed control |
| Dust Collection | Cyclone, Dust Collector, Pulse Jet, or combinations |
| Material Collection | Manual or automatic bagging system |
APIs, excipients, fine powders
Organic & inorganic colorants
Talc, CaCO3, silica, graphite
Fine chemicals & specialty powders
Spices, starches, additives
Formulation testing & scale-up