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McLanahan Hydrosizer When extremely sharp classification is needed to separate granular material by size, the McLanahan Hydrosizer is comparable to screening but at only a fraction of the footprint and cost. For specific gravity separation, the Hydro‐ sizer, or the LitesOut Classifier offers the best, most efficient and cost‐effec‐ tive solution. Proven over a period of more than 30 years in applications as diverse as construction and specialty sand, ag‐ gregates, iron ore, phosphate, coal, mineral sand and many other ore con‐ centrates, the Hydrosizer is the sim‐ ple, robust and reliable way to maintain tight control over product size fractions. Historically, Hydrosizers and other classifiers that share the "hindered settling" technology have their roots in industrial sands and are very famil‐ iar equipment to producers of glass sand, foundry sand and frac sands. This same technology is used in spe‐ cialty construction sand production. Features Include: ■ Extremely sharp, high efficiency size classification between 100 and 600 micron. ■ Effective separation of minerals of different specific gravity. ■ Low operating cost. ■ Rapid payback on investment. McLanahan, www.mclanahan.com Midwestern Industries' MEV Screener The MEV high‐frequency screener is a rectangular screener that utilizes an elliptical motion to convey material across the screening surface. Available in sizes 3‐ x 5 ft., 4‐ x 8‐ft. and 5‐ x 10‐ ft. with the availability of one to five screening decks gives the MEV screener the versatility to meet a frac sand producer's screening needs. The MEV screener is designed to re‐ tain the material at the feed end for a longer period of time, then gently slopes near the discharge end assist‐ ing the material off the screening deck and into production. This is achieved by the screener's unique parallel‐arc configuration. Crossbars support the end‐tensioned screens and create a flat screening surface maximizing the screening area. The end‐tensioned screens used in the high frequency screener simplify changing screen panels. End‐tension‐ ing permits the use of square‐opening and slotted screens and is accurately maintained by a spring‐loaded draw bar. Users can make screen changes in 10‐15 minutes. Midwestern Industries, www.midwesternind.com Portable Frac Sand Plant McLanahan Corp. and Cemco have teamed up to produce the industry's first portable frac sand plant. Combining advanced technology hallmarked by McLanahan's processing engineers with Cemco's expertise in portable equip‐ ment design, the Portable Frac Sand Plant offers an economical, efficient means for the production of two sizes of frac sand used in oil and natural gas drilling applications. The plant is easily transported from one deposit site to the next, enabling frac sand mining at multi‐ ple locations. Created in response to the growing de‐ mand for highly specialized frac sand, McLanahan and Cemco designed the Portable Frac Sand Plant to allow for high volume production without the need to own and operate multiple stationary plants and obtain building permits. Based on McLanahan's stationary frac sand plants and process, the portable model features proven design and tech‐ nology in a configuration that's easy to set up, take down and transport. Only two operators are needed to assemble and disassemble, and setup takes less than eight hours. Additionally, the plant is highway legal, meeting all state DOT requirements for transport. Cemco's specialized, self‐erecting Portable Frac Sand Plant is designed for high‐volume production, offering an av‐ erage output of 150 tph, and built for continuous‐duty, 24/7 operation. From the initial feed, material first reports to a sump, which pumps the sand and added water up to a cyclone. This cyclone is mounted to the self‐erecting Hydrosizer, which sepa‐ rates sand of plus 70 mesh and transports it to a system of vibrating dewatering screens. E Cemco, www.cemco‐ turbo.com www.rockproducts.com ROCKproducts • OCTOBER 2012 23