Size Reduction 1791

Cone Mill
The Kek cone mill has the ability to take a wide range of feed material and produce an equally wide range of product, making it ideal for intermediate sizing in both wet and dry granulation processes. The mill provides a gentle low-energy form of size reduction and eliminates traditional milling problems including noise, dust, and heat. The gentle grinding action is capable of control within fine limits while maintaining a close particle size distribution with minimal fines generation, typically grinding from 25 mm to 250 µm.  Kemutec, Bristol, PA 215-788-8013 www.KemutecUSA.com

Hammer Mills and Roller Mills
Designed for the most demanding operations, these versatile hammer mills and roller mills provide a high-capacity, consistent grind for a variety of friable and fibrous materials, including: abrasives, ceramics, minerals, plastics, rendering, coatings, bio-mass, food, pet food, fine chemicals, ethanol, polymers, and pharmaceuticals. CPM Roskamp Champion, Waterloo, IA 800-366-2563 www.cpm.net

Grinding Mills
Versatile Vibro-Energy grinding mills provide fast, low-cost particle size reduction to sub-micron range. Vibro-Energy grinding action achieves higher output per input horsepower, precise control of size and distribution. Product contamination from media and lining wear is virtually eliminated. Maintenance costs are low because of few moving parts and replaceable linings made of abrasion-resistant metal, ceramic, or elastomers. The mills’ vibratory motion, coupled with the use of cylindrical media, allows a dense packing of the media bed assuring maximum media surface contact and minimum void area when operated under a low-energy condition. Feed materials as large as 300 microns can be reduced to sub-micron sizes. In the high-energy configuration, feed materials as large as 12-in. agglomerates have been successfully milled and solid particles of a half inch are being reduced to a d50 of less than 5 microns. Sweco, Florence, KY 859-727-5116 www.sweco.com

Bulk Container Crusher/Feeder
This combination crusher/feeder was designed to solve the nuisance of lumps coming from bulk containers, while providing a metered feed to the downstream equipment. This solution is applicable to many applications for industries like chemical, food, dairy, or any dry to slightly moist powders. The crusher is designed to run in a flooded condition directly below the bulk container outlet. Machine and Process Design Inc., Anoka, MN  877-224-0653 www.mpd-inc.com

Agglomeration/Lump Reducer
The LumpMaster reduces lumps and agglomerations in sugars and many other ingredients that compact. The simple and economical design is easily integrated into your existing process or can be engineered into a new feeding solution. Two gear-driven, counter-rotating finger shafts and replaceable side combs are used to eliminate lumps. The LumpMaster is available in carbon steel, 304 and 316 stainless steel, with food-grade or sanitary finish. Hapman, Kalamazoo, MI 800-427-6260 www.hapman.com

Laboratory Cryogenic Grinding System
This system controls the flow of liquid nitrogen into the grinding chamber for customers performing cryogenic grinding. The engineered system includes a probe inside the grinding chamber that monitors the temperature, and at the same time, regulates the flow of liquid nitrogen into the mill to maintain the desired temperature. Raising and lowering the temperature is accomplished by simply adjusting the dial up or down. The device is then able to change the rate of flow of liquid nitrogen into the chamber to achieve this goal. The system pictured was designed for use with the 01-HD and 1-S laboratory attritors, but can also be adapted for use with production-sized mills as well. Union Process Inc., Akron, OH 330-929-3333 www.unionprocess.com

Compact Laboratory Plant
The Lab Compact Plant was developed for ultra-fine grinding and classification of products of any hardness. It is designed for concept tests as well as for batches of up to 5 l in one run. Parts in contact with the product and the base frame of the compact plant are stainless steel. The new design has a small footprint. Nearly all applications for ultra-fine grinding and classification can be solved with a basic plant module and the option to install three machine types for size reduction including CGS fluidized bed jet mill; ConJet high-density bed jet mill, and CUM universal mill. The CFS and CFS/HD-S fine classifiers can be installed for the classification of powders. The plant is delivered completely assembled including a fully automatic control system with a touch screen user interface. Netzsch Premier Technologies LLC, Exton, PA 800-676-6455 www.netzsch-grinding.com

Pin Mill
The rugged Simpactor is a simple pin mill with a broad array of liner materials. In operation, materials are fed to the single-feed inlet dividing the stream to pass on either side of the external bearing column. The material drops onto the spinning rotor plate where centrifugal force drives it through intermeshing pins and against an impact ring. This action reduces the friable particles via impact, or gently separates the material into fractional parts if used at low RPM. Sturtevant Inc., Hanover, MA 800-992-0200 www.sturtevantinc.com

Compact Pin Mill
This 18-in.-diam model CIM-18-SS centrifugal impact mill provides coarse to fine (400 mesh) grinding of friable materials into controlled particle sizes, as well as de-agglomerating and conditioning of dry solids. A direct-drive system reduces the unit’s footprint to about half of that required by a belt-driven machine, allowing installations in restricted areas. High-speed rotation of the inner disc creates centrifugal force that accelerates bulk material entering the central inlet of the opposing stationary disc. As material travels from the center to the periphery of the discs at high speed, it passes through a “treacherous path” of five intermeshing rows of rotating and stationary pins, with the desired tight particle size distribution obtained by controlling the rotor speed. Munson Machinery Company, Inc., Utica, NY 800-944-6644 www.munsonmachinery.com

Air Swept Mill
The Micro-Max fine grind air swept mill is a versatile screenless mill capable of producing a wide range of particle sizes. Typical applications for the mill are diverse, ranging from adhesives and asphalt to wheat germ and zinc oxide. The Micro-Max slave plate saves wear on the inlet beater plate, and the increased air flow keeps material cooler when grinding, an advantage over competitive models. By adding heat to the Micro-Max, the mill is capable of grinding and drying in one pass. Liquid injection ports are standard for grinding heat-sensitive materials. Stedman, Aurora, IN 800-262-5401 www.stedman-machine.com