Metso air classification technology is an effective way to classify your mineral end products. With no moving parts, you can easily meet your specifications and produce high-quality products all while lowering your operating costs.
Metso air classification technology combines over 150 years of industry knowledge with high-quality design, low maintenance, and low operating cost.
- Most efficient air classifier technology on the market
- Sharper separations (all products produced can be sold)
- No moving parts
- Lower operating costs
- No drying required for asphalt and industrial mineral products
- Ceramic lining makes extremely abrasive applications possible
Air classification technology
The Centrifugal Classifier (C series) uses secondary airflow to separate particles ranging from 100 microns to 20 microns. This airflow, as well as the diameter of the coarse-particles opening, is adjustable – for a clear, accurate cut point. Secondary airflow is also crucial in the removal of near-size particles. The C series is designed to reduce maintenance costs, with ceramic-enforced wear parts and no moving parts.
With the use of airflow, gravity, and sharp directional changes, the Gravitational Classifier series (or G series) performs accurate separations of material from 1,700+ microns down to 150 microns. Coarse particles are conveyed by gravity through a valve at the bottom of the unit, and fine material is conveyed by air to a fabric filter. This G series is effective without the use of water, supporting EPA water-usage regulations.
The GI Classifier series utilizes secondary airflow, along with gravity and sharp directional change, to make adjustable, accurate separations of material from 400 microns to 75 microns. With no moving parts and extensive use of ceramics in wear areas, GI Classifiers require limited parts replacement and virtually no maintenance. This series is widely used to produce engineered sands and mineral fillers to current specifications.
The Cyclonic Ultrafine (CU) Classifier series provides separation for a smaller range – from 50 to 10 microns – but can have a top feed size of 500 microns. The unique inlet scroll design creates a smooth, uniform flow without currents perpendicular to the main direction of gas flow. Different than conventional cyclones, it allows for adjustment of the amount of particulate removed.
Gyrotors, a rotating vane air classifier, separate dry solid particles by size. They are designed for any separation where the fines are 500 microns (35 mesh) or finer.