Mills, Granulators, & Crushers Spotlight - March 2010

Lump Breaker

The Delumper 2085L crusher breaks up lumps, crushes minerals, improves product consistency, facilitates mixing, drying, and conveying, and keeps process lines running smoothly. This powerful lump breaker reduces a wide range of materials including chemicals, sugar, food, mineral, salts, plastics, and pharmaceuticals to desired output with a positive, once-through chopping action. The unit utilizes specially designed, individually replaceable teeth mounted on a smooth rotating drum that intermeshes with sizing combs. Solids are reduced to their basic grain size without overgrind, heat rise, or fines. The unit runs at low speed and creates little vibration or noise. It features a seamless stainless-steel body construction and wide mounting flanges for easy connection to systems or hoppers.
Franklin Miller Inc., Livingston, NJ 973-535-9200 www.franklinmiller.com

Pre-Breaker Mill

The Kek Kibbler prebreaker mill is designed to work in conjunction with other Kek mills or as a stand-alone mill. Strong and robust, the Kibbler is designed to demolish large lumps up to 150mm and reduce them down to 2–3mm in preparation for further processing. Size reduction takes place through a combination of impact, crushing, cutting, and abrasion as the slow-speed, heavy-duty beater sweeps product against the contoured grinding screen. Available with cantilever grinding beaters, the Kibbler is ideal for food, pharmaceuticals, and fine chemical applications. This design offers improved hygiene and easy cleaning. The nondrive end access door opens and closes rapidly for easier and quicker screen changes.
Kemutec, Bristol, 215-788-8013 PA www.kemutecusa.com

Fine Grinder

The M-Series fine grinder can grind dry, freeflowing material as fine as 200 mesh (75 um) with tight distribution of particle size. It is best suited for heatsensitive materials such as resins, sugar, and powder coatings. Utilizing a high-speed impact principle, the feed material is metered into the center of the mill where it is impacted by the rotor. The feed material is then thrown outward where it impacts with other particles, aiding in the reduction process. After initial impact, particles are projected across the screen and are sheared between the blades of the rotor and the sizing screen or jaws. This action continues until the particles are properly sized and are discharged through the bottom of the mill. Precision tolerances are maintained between the rotor blades and the stationary grinding surfaces to allow for accurate control of finished particle size and distribution.
Prater-Sterling, Bolingbrook, IL 630-759-9595 www.prater-sterling.com

Hammer Mills

The Eliminator line includes five designs, eight diameters, and 12 widths for the most complete ability to size individual equipment for customers’ specific capacity requirements. The EMF mill is capable of grinding to a finer particle size than the traditional hammer mill. The company also manufactures pellet mills, pellet coolers, crumblers, and other products for the grain, feed, wood, oil, and flour milling industries.
Bliss Industries LLC, Ponca City, OK 580-765-7787 www.bliss-industries.com

Milling Equipment

Endecotts and Glen Creston have teamed up to provide milling equipment. Glen Creston Ltd manufacture a range of materials reduction equipment including the McCrone micronizing mill, crossbeater mill, roll crusher, hammer mill, jaw crusher, mortar and pestle mill, and a range of ball mills that are designed to reduce samples efficiently and quickly. Input particle size can be up to 250mm for some machines, and final particle size down to 5 μm.
Endecotts Inc., Ponte Vedra, FL 904-814-8418 www.endecotts.com

Ball Mill

The Ecutec KGM ball mill has a robust design that is ideal for the fine and ultrafine grinding of all types of minerals and ores. Engineered specifically with grinding efficiency in mind, the KGM can handle the entire range of soft, medium, or hard products. It can also handle abrasive products with the appropriate selection of wear-resistant lining and grinding media. Several installation, outlet, and drive configurations are available, depending on the application and mill size. An extensive selection of specialty grinding media is also available to optimize the performance of the mill specific to the customer’s application.
Sweco,  Florence,  859-371-4360 KY www.sweco.com

Hammer Mill

This hammer mill reduces friable and fibrous materials into uniform particle sizes from 20 to 300 mesh. Centrifugal force causes pivoting hammers to stand at 90° to the rotating shaft, throwing material against breaker plate ridges in the feed section, and then against perforated bed screens through which sized material exits. The shaft, integral hammer discs, disc pins, and hammers are driven by a 75-hp motor at 1800–4000 rpm, achieving hammer tip speeds of 8700 to 19,500 ft/min, even under heavy loads, reducing a broad variety of solid material into particles at high rates. The mill can pulverize wood scraps, process grain, break-down impact resistant housings, destroy ammunition shells, pulverize newspaper, separate rubber from cord fiber, and reduce the size of a variety of other chemical, plastic, rubber, and agricultural products. Screen perforations determine particle sizes.
Munson Machinery Company, Inc., Utica, 800-944-6644 NY www.munsonmachinery.com

Jet Mill

The Micronizer jet mill is a spiral jet mill with no moving parts that grinds and classifies powders to low and sub-micron particle sizes in a single operation using highpressure compressed air, gas, or steam. For processing ceramic powders, product contact parts can be made from aluminum oxide, tungsten carbide, zirconium oxide, silicon carbide, as well as many polymeric compounds. The variety of replaceable liners provides protection against wear and contamination. The unit will accept a granular feed size of up to 20 mesh (850 μm), but 100-200 mesh (75-150 μm) is preferable to achieve maximum product fineness and maximum capacity. In most cases, it can mill ceramic powders to 1–10 μm, depending on the material’s grindability. In some cases, the Micronizer can mill ceramic powders to as fine as 99% finer than 1 μm and 50% finer than 0.6 μm.
Sturtevant, Hanover, MA 800-992-0209 www.sturtevantinc.com

Granulators

These radial-knife granulators offer heavy-duty construction, greater weight, and higher capacity in continuous-duty operations. All models feature longer rotors with larger cutting circles, thereby increasing the grate area and ultimately improving efficiency. Each model features knives that are designed with a minimum rake angle on the cutting edge to resist chipping and nicking, retaining a sharp edge longer under severe service. They use fewer knives than competitive granulators, spanning the full cutting length, and thereby reducing the time required for knife changing or regapping.
Triple/S Dynamics, Dallas, TX 800-527-2116 www.sssdynamics.com