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42 www.coalage.com January-February 2017 suppliers news Russian Longwall Mines Set National Monthly Coal Production Records Two Russian longwall mines operated by the Siberian Coal Energy Co. (SUEK) recently surpassed the national monthly coal produc- tion record. The Kotinskaya mine produced 1,050,452 metric tons (mt) of raw coal in August to set the all-time record, and Taldinska- ya-Zapadnaya mine No. 1 produced 1,020,109 mt of raw coal to exceed the national record of 1,007,000 mt that it set in 2013. Both mines are located in the Kuzbass region, the source of much of Russia's coal exports. In 2015, the Kotinskaya mine had annual production of more than 4.5 million mt of steam coal, about 3.6 million mt of which were exported. The 2015 produc- tion of the Taldinskaya-Zapadnaya mine No. 1 was more than 2.5 million mt of coal. Each of the two mines use Cat longwall equipment — Cat roof supports equipped with Cat PMC-R roof support control, a Cat AFCPF6 face conveyor with an installed power of 3 x 750 kilowatts (kW ) or 1,000 hp, Cat CST45 gearboxes, and a Cat BSLPF6 beam stage loader with integrated crusher. Kotinskaya's current longwall is equipped with two-leg Cat shields, each with a width of 1.75 m (5.75 ft) and support capacity of 725 mt (800 tons). With an operating range of 2.2 to 4.8 m (7.2 to 15.7 ft), the supports are used in a seam that is typically about 4 m (13 ft) thick. At the Kotinskaya mine, the PMC-R roof-support control sys- tem offers special operating modes to boost both productivity and safety. The system can reactivate some regions of the face and resume production even though the face has been put into a safe condition in response to detection of an electrical fault, some- times caused by a broken cable between two PMC-R controls. Before reactivation, strictly defined conditions must be observed. Cat PF6 face and entry conveyers are especially designed for high performance longwalls. With its patented trough concept and durable pan design, the Cat AFCPF6 face conveyor is particu- larly suited for applications in longwalls with extended face length and for panels with coal reserves of 10 million mt and more. The innovative design of the PF6 line pan allows the separa- tion of wear parts and structural parts. Very hard, wear-resistant materials are used for wear parts, while the structural parts are made of high-strength steel. The PF6 is designed to allow deflec- tions of ±6 degrees vertically and 0.8° to 1.2° horizontally, thus al- lowing it to be easily aligned to suit local conditions. SUEK is Russia's largest coal company, operating 11 under- ground coal mines and 11 open-pit coal mines in 2015. That year it supplied 97.8 million mt of coal, about 26% of Russian coal pro- duction. SUEK also is among the largest suppliers of coal in the international market — with sales of 46.9 million mt in 2015. Strata Acquires AL Lee Assets During December, Strata Worldwide has completed an acquisition of certain assets of A.L. Lee Corp., the market leader in rock dust- ing machinery as well as other types of underground mining equip- ment. The asset purchase includes rights to all products and services relating to the mining industry. Strata plans retain the A.L. Lee brand and trademark and leverage its respective operational strengths. "Through this action, we continue to build on our investment in the mining industry," said Dave Jenks, CFO and COO, Strata Worldwide. "A.L. Lee is admired for its innovation and success in solution-based mining equipment, lowering customers' overall cost per ton. Acquiring this market leader positions Strata to offer an enhanced portfolio of products to a domestic customer base and also customers worldwide." The acquisition of A.L. Lee helps accelerate Strata's market reach in mining equipment and adds engineering expertise to further develop technology, the company said. Rexnord Offers Shorter Lead Times for Falk Drives Rexnord has established new, shorter standard lead times for prod- ucts and accessories within the Falk V-Class Gear Drive portfolio, beginning at four weeks or less. Standard lead times for V-Class unit sizes 107-167 begin at four weeks, with additional sizes and accesso- ries at six and eight weeks, with plans to broaden the offering in 2017. "We are proud to establish shorter lead times for the V-Class portfolio to help our users reduce unplanned downtime and shut- The Kotinskaya mine produced 1,050,452 mt of coal in August 2016. Lead times for 107-167 V-Class units begin at four weeks.