Air Classifier
How It Works
Materials enter the chamber via upward airflow, sorted by differences in size, shape, and density. Aerodynamic drag counteracts gravity and centrifugal forces; fine sulfur powders pass through the turbine for collection, while coarse particles settle and exit, completing the precise dry sorting and refining process under an inert nitrogen environment.
Performance Features
Turbine Classification & Narrow PSD Control
Utilizing advanced turbine technology, this classifier allows for precise cut-offs within a 3–150μm range. For heat-sensitive sulfur powder, it stably produces ultrafine powders with an extremely narrow PSD, effectively eliminating oversized particles to meet the stringent consistency requirements of high-end chemical and rubber grades.
Anti-Adhesion & Explosion-Proof Design
Specifically engineered for sulfur’s static and combustible nature, the system features nitrogen-shielded protection and anti-static internal coatings. The design minimizes powder buildup and prevents heat-induced clogging, ensuring long-term stable operation in hazardous environments.
Vertical Model: Large-Scale Industrial Output
The vertical design optimizes the discharge path to reduce flow resistance and minimize heat accumulation. This configuration significantly boosts hourly capacity, making it the premier choice for the high-volume mass production of industrial-grade sulfur powder.
Horizontal Model: Extreme Sorting Precision
The horizontal turbine enables higher speeds and stronger centrifugal forces for superior particle sensitivity. It yields high-value sulfur products with exceptional uniformity and higher purity, ideal for fine chemicals, laboratory-grade materials, and advanced explosives.
Secondary Air Intake & Refined Efficiency
The scientific secondary air intake re-sorts fine particles trapped in coarse material. This aerodynamic optimization boosts recovery rates and ensures maximum purity for sulfur powder during refinement, reducing waste and optimizing production costs.
Technical Parameters
| Parameters / Model Vertical | 250 | 320 | 400 | 450 | 500 | 570 | 630 | 700 | 850 |
|---|---|---|---|---|---|---|---|---|---|
| Particle size (D97 μm) | 6~50 | 6~50 | 8~60 | 8~60 | 10~80 | 10~80 | 12~100 | 12~100 | 12~100 |
| Processing capacity (kg/h) | 50~300 | 80~500 | 120~750 | 150~1000 | 200~1200 | 300~1500 | 380~1800 | 500~2200 | 700~3000 |
| Classifying wheel Speed (r/min) | 500~5000 | 400~4000 | 360~3600 | 340~3400 | 310~3100 | 270~2700 | 240~2400 | 220~2200 | 180~1800 |
| Classifying wheel Diameter (mm) | 250 | 320 | 400 | 450 | 500 | 570 | 630 | 700 | 850 |
| Motor power (kW) | 4 | 7.5 | 11 | 15 | 22 | 30 | 37 | 45 | 55 |






