Coal Age

FEB 2012

Coal Age Magazine - For more than 100 years, Coal Age has been the magazine that readers can trust for guidance and insight on this important industry.

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u.s. longwall census continued 26 www.coalage.com February 2012 Mine Company (parent) NEW MEXICO (1) San Juan South BHP Billiton OHIO (2) Century Mine American Energy Corp. Powhatan No. 6 Ohio Valley Coal PENNSYLVANIA (7) Bailey CONSOL Energy Seam Fruitland No. 8 Pittsburgh No. 8 Pittsburgh No. 8 Pittsburgh No. 8 Pittsburgh No. 8 Cumberland Pittsburgh Alpha Natural Resources No. 8 Emerald No. 1 Alpha Natural Resources No. 8 Pittsburgh No. 8 Enlow Fork CONSOL Energy Pittsburgh No. 8 Pittsburgh No. 8 UTAH (5) Deer Creek Energy West Mining Dugout Canyon Arch Coal SUFCO No. 1 Arch Coal Skyline Arch Coal West Ridge VIRGINIA (1) Buchanan CONSOL Energy Blind Canyon Gilson Upper Hiawatha Lower Lower Pittsburgh Seam height (inches) 136- 200 62- 65 62 62- 72 62- 72 78- 84 72- 84 72- 84 62- 72 62- 72 84- 120 72- 144 84- 216 108- UtahAmerican Energy Sunnyside No. 3 O'Connor A 240 78- 98 Pocahontas 60- 76 Cutting Panel height (inches) 120- 156 width (ft) Panel length (ft) Over- burden (ft) 1,000 12,500 400- 900 68 68 1,350 10,000 1,500 9,000 400- 600 350 600- 93 95 78- 84 72- 84 72- 84 92 89 1,500 12,000 1,500 12,000 1,370- 6,800- 1,430 12,000 1,250- 10,000- 1,450 12,000 1,450 12,000 1,500 12,000 1,500 12,000 1,000 600- 1,000 600- 1,200 500- 1,000 500- 1,000 600- 1,000 600- 1,000 96 72- 132 96- 156 108- 156 78- 90 70 750 890 1,110 850 850 700 6,500 3,400- 8,000 2,400- 4,000 2,500- 6,000 3,200 11,500 1,600- 2,600 400- 2,600 800- 1,800 800- 1,800 3,000 1,400- 2,000 3 3 3 3 3 3 3 42 42 42 42 42 42 42 No. of gate entries Depth of cut (inches) Shearer Joy 7LS5 3 39 DDR 2,092 3 3 32 34 Joy 7LS1A DDR 1,625 Joy 7LS1A DDR 1,625 Haulage system Ultratrac 2000 AEMI 2010 AEMI 2010 Joy 7LS2A Jumbo Track DDR 1,680 2000 Eickhoff-300SL Jumbo Track DDR 1,850 Joy 7LS2A DDR 1,666 Joy 7L1A 2000 Jumbotrac 2000 DDR 1,666 Joy 7LS2 DDR 1,666 Jumbotrac 2000 Jumbotrac 2000 Joy 7LS2A Jumbo Track DDR 1,680 2000 Joy 7LS2A Jumbo Track DDR 1,680 2000 Joy 7LS2 2 2 3 2 2 4 36 36 42 42 30 42 DDR 1,451 Joy 7LS2 DDR 1,750 Ultratrac 2000 Ultratrac 2000 Cat EL3000 Jumbotrac DDR 2,805 Joy 7LS3 DDR 1,507 Joy 7LS2 DDR 1,534 Ultratrac 2000 Joy 7LS1D Super GearRack DDR 1,300 2000 Roof support yield (tons) Joy 1,160 MEC 680 MEC 680 Cat 880 Joy 1,005 Cat 1,096 Cat 1,172 Cat 925 Cat 882/893 Joy 1,005 Joy 1,170 Joy 1,100 Cat Jumbotrac 1,271 Joy 970 Joy 905 Joy 1,024 Face conveyor type (strand, motors) Joy Mining Machinery 50 TIB 3x1,150 AEMI 48 TIB 3x1,900 AEMI 48 TIB 3x1,900 Caterpillar/ PF5 48 TIB 3x1,900 Caterpillar/ PF6 48 TIB 3x1,900 Caterpillar 42 TIB 3x1,650 Caterpillar 48 TIB 2x1,650, 1x1,450 Caterpillar 48 TIB 3x1,650 Caterpillar/ PF6 48 TIB 3x1,900 Caterpillar/ PF6 48 TIB 3x1,900 Joy Mining Machinery 34 TIB 2x600 Caterpillar 42 TIB 2x1,250 Caterpillar 48 TIB 3x1,650 Caterpillar 42 TIB 2x1,200 Joy/LW Associates 42 TIB 2x700 Joy/LW Associates 42 TIB 3x800 Face conveyor width (mm)/ speed (fpm) 1,100/ 350 1,000/ 370 1,000/ 370 988/ 365 988/ 365 988/ 365 988/ 365 988/ 365 988/ 365 988/ 365 940/ 257 1,042/ 355 1,342/ 374 1,342/ 354 890/ 263 1,000/ 350 Stageloader type width, speed Joy Mining Machinery 1,350 mm, 500 fpm MEC 1,300 mm, 475 fpm MEC 1,300 mm, 475 fpm Caterpillar 1,188 mm, 525 fpm Caterpillar 1,188 mm, 525 fpm Caterpillar 1,388 mm, 420 fpm Caterpillar 1,388 mm, 420 fpm Caterpillar 1,388 mm, 420 fpm Caterpillar 1,188 mm, 525 fpm Caterpillar 1,188 mm, 525 fpm Joy Mining Machinery 1,250 mm, 320 fpm Caterpillar 1,188 mm, 472 fpm Caterpillar 1,388 mm, 464 fpm Caterpillar 1,388 mm, 477 fpm MEC 1,024 mm, 320 fpm Longwall Associates 1,294 mm, 460 fpm Cat Cat Cat Cat Cat Cat Cat MEC MEC MCI MCI Line Power Line Power Service Machine Service Machine Service Machine Service Machine Service Machine Line Joy Cat Cat Cat MEC Joy Power Line Power/ RAD Service Machine Line Power Line Power Line Power 4,160 4,160 4,160 4,160 2,300 4,160 4,160 4,160 4,160 4,160 4,160 4,160 4,160 4,160 4,160 Crusher Electrical controls Service Joy Machine 4,160 Voltage to face

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