The Air Swept Classifier System
For the economical, efficient recovery of fine powders.
The Proven Solution for Countless Applications
Specializing in fine powder processing, CMS’s highly energy-efficient Air Swept Classifier System is offered in 3-to-600hp Models. Durable and fully customizable, this system goes as fine as 10 micron (particulate size is easily adjustable to produce fine or coarse products).
With an Air Swept Classifier System from CMS, expect:
- A system that’s easy to clean, maintain and operate
- Adjustable particle size without shutdown
- The mill to grind and classify the product while producing narrower distributions
- The grinding temperature to remain low since the mill chamber is constantly “air swept”
- Custom designs to grind your product and meet peak efficiency requirements
- A complete, energy efficient and reliable system.
- Comprehensive ‘Turn-Key’ Designs
User-friendly and versatile, a typical CMS Air Swept Classifier System has 5 main components:
- Air Swept Classifier Mill
- High Efficiency Cyclone (or cyclone classifier)
- Dust Collector (99.9% dust free)
- Industrial Fan Set
- Control Panel
Please note that each component can be supplied separately or as a complete system. It’s up to you!
CMS Customers Found the World Over
Whether your need is new equipment, system design and engineering for size reduction applications, CMS is at your service.
How Does The CMS System Work?
This high efficiency classification system consistently sweeps the material directly in front of the hammers at right angles. In other designs, the material picks up the peripheral speed of the rotor, impacting the energy transferred to the particle.
Fine feed material is swept directly to the classifier. This pre-classification means that work is only performed on material exceeding your requirements. Particles rejected by the classifier are continuously recycled back to the impactors for further reduction. CMS’s Air Swept Classifier System has been uniquely designed to produce a narrow particle size distribution.
While the mill is in operation, the speed of the classifier can be changed to compensate for rises in differential pressure losses. It also optimizes peak capacity. Once stabilized, the Air Swept Classifier mill continues to produce the same fineness and capacity. If requirements change, the classifier is also easily changed. The variable speed of the classifier as well as the regulation of the air flow and rotor speed, enable the variation of particle fines over a wide range. The maximum permissible particle size or the separation curve can be adjusted during the grinding operation without shutting down the mill. A 200HP mill, for instance, can turn up to 20 tons of 200 mesh limestone.
Click here to see a Graphical Representation of Partical Size Distribution
Standard System Models

All Models listed are identical in operation as well as performance. The only difference between them is the capacity of product being utilized. All rates are subject to product testing at our test facility. For More details contact our laboratory test facility toll free @ 1-877-353-MILL (6455)
For a list of common materials CMS processes, click here