Air Swept Classifier Mills

The CMS Air Swept Classifier Mill is a user-friendly and versatile component of a system which is comprised of the Air Swept Classifer Mill and the CMS Dust Collector with an airlock and a fan.

Our Air Swept Classifier Mill is completely enclosed resulting in a dust free environment and virtually no product is lost. The combination of impact size reduction and classifying results in the attainment of degrees of fineness which come within the range of jet mills (micronizers). However, the energy and time required to run this system is substantially lowered. The combination of high air throughput and cooled grinding chamber allows heat sensitive products to be run at higher capacities than ever thought possible.

Models - The Air Swept Classifier is available in various sizes: Model 3, Model 5, Model 10, Model 15, Model 30, Model 60, Model 75, Model 100, Model 200, Model 250, Model 300, Model 350, Model 400. All these models are identical in operation as well as performance. The only difference between them is the capacity of product being utilized.

How The System Works

This high efficiency classification system consistently sweeps the material directly in front of the hammers at right angles to the hammers. Different designs allow the material to pick up the peripheral speed of the rotor, which affects the impact energy transferred to the particle, again, affecting efficiency.

As the feed material is introduced into the grinding chamber, the movement of air from below the rotor disc sweeps the fines in the feed directly to the classifier. This pre-classification insures that work is only performed on that fraction of material which is larger than your requirements.

The classifier, an integral component of the mill, allows acceptance of the desired particles. Those particles rejected by the classifier are continuously recycled back to the impactors for further reduction. The classifier design with its canted blades has been proven to produce a narrow particle distribution.

Built into the design is the capability to change the speed of the classifier over a wide range while the mill is in operation. This feature is necessary to compensate for rises in differential pressure losses across the product collector during initial start-up.

The capability to change the speed of the classifier allows for optimizing peak capacity. Once the system is stabilized, the Air Swept Classifier mill will continue to produce the same fineness and capacity on a daily basis. Should future requirements change, this air swept classifier mill has the ability to change too. The variable speed of the classifier as well as the regulation of the air flow and the 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. This drive allows your operator the ability to change particle size without shutting down the mill. A 200HP mill can turn up to 20 tons of 200 mesh limestone. Just make the necessary changes to the classifier speed, and produce the required product.

HORIZONTAL & TOP ACCESS DESIGN As shown, this feature allows all internal components to be accessed without having to disassemble the classifier or hammer disc, and allows greater accessibility for the removal of any parts that require replacement. In addition, this design increases the life of any hardware that is often being removed with tools and possible worn or stripped resulting in frequent maintenance repair.

CMS has manufactured various mills and grinding systems specifically designed for a variety of industries. With our well equipped technical staff, we are able to run small to large samples in our laboratory testing facility. With a view to provide practically reliable solutions, CMS, has an equipped laboratory with actual production models of all their equipment. Grinding, Classifying, dust control and pneumatic conveying equipment are all available to assist our customers at any stage of development.

Refurbishing existing equipment and implementing new systems is only part of what CMS has to offer. The main area of concern that has been frequently addressed is “Change over time”. The extra time and effort required to do an efficient equipment clean down has always been a consistent problem. As a result, all CMS grinding equipment is designed with quick access to all internal components, easy clean availability resulting in fast and efficient change over. Listed briefly are a few of our strategic designs that have enhanced our systems over all operational capabilities.

QUALITY REPLACEMENT PARTS CMS has always been on the cutting edge when it comes to the quality and life expectancy of wear components. We believe that our spare parts are superior to that of any other company. Recognizing the demand for quality and quick delivery, CMS manufactures and stocks every spare part possible for each of their systems, in addition to an inventory of parts from various other manufacturing suppliers.