Coal Age Magazine - For nearly 100 years, Coal Age has been the magazine that readers can trust for guidance and insight on this important industry.
Issue link: https://coal.epubxp.com/i/110818
1,250 21,500 Panel length (ft) 450 Overburden (ft) 3 No. of gate entries 42 Depth of cut (inches) Shearer Joy 7LS5 120 Panel width (ft) 28 www.coalage.com 72 No. 8 No. 8 84 84 Hiawatha Lower O'Connor A Lower Arch Coal Skyline Arch Coal West Ridge Sunnyside Upper SUFCO No. 1 UtahAmerican Energy 144 Gilson Arch Coal 98 78- 240 108- 216 84- 72- 120 Dugout Canyon Canyon Energy West Mining 84- 72 No. 8 Blind 72 62- No. 8 Pittsburgh 62- No. 8 Pittsburgh 84 72- No. 8 72- Pittsburgh Pittsburgh 78- 62- Pittsburgh Pittsburgh 72 62- 54 75 65- 200 136- No. 8 Deer Creek UTAH (5) CONSOL Energy Enlow Fork Alpha Natural Resources Emerald No. 1 Alpha Natural Resources Cumberland CONSOL Energy Bailey Pittsburgh No. 8 Ohio Valley Coal PENNSYLVANIA (7) Pittsburgh No. 8 Pittsburgh No. 8 Fruitland Powhatan No. 6 American Energy Corp. Century Mine OHIO (2) BHP Billiton San Juan South NEW MEXICO (1) 90 78- 156 108- 156 96- 132 72- 96 89 92 84 72- 84 72- 84 78- 95 93 68 75 68- 156 120- 850 650- 850 1,110 890 750 1,500 1,500 1,450 1,450 1,250- 1,580 1,500 1,500 1,500 1,350 1,000 6,000 3,500- 6,000 2,500- 4,000 2,400- 8,000 3,400- 5,600 2,600- 12,000 12,000 4,000 10,000 12,000 6,800- 12,000 12,000 9,000 10,000 12,500 3,000 1,600- 1,800 800- 1,800 800- 2,600 400- 2,600 1,600- 1,000 600- 1,000 600- 1,000 500- 1,000 500- 1,200 600- 1,000 600- 1,000 600- 300 600 400- 900 400- 2 2 3 2 2 3 3 3 3 3 3 3 3 3 3 28 42 42 36 36 42 42 42 42 42 42 42 32 32 39 2000 Jumbo Track 2010 AEMI 2010 AEMI 2000 Ultratrac 2000 Jumbotrac Haulage system DDR 1,534 Joy 7LS2 DDR 1,507 Joy 7LS3 DDR 2,805 Cat EL3000 DDR 1,750 Joy 7LS2 DDR 1,451 Joy 7LS2 DDR 1,680 Joy 7LS2A DDR 1,680 Joy 7LS2A DDR 1,661 Joy 7LS2A DDR 1,661 Joy 7LS2A DDR 1,666 Joy 7LS2A DDR 1,850 2000 Ultratrac Jumbotrac Jumbotrac 2000 Ultratrac 2000 Ultratrac 2000 Jumbo Track 2000 Jumbo Track 2000 Jumbotrac 2000 Jumbotrac 2000 Jumbotrac 2000 Eickhoff-300SL Jumbo Track DDR 1,680 Joy 7LS2A DDR 1,625 Joy 7LS1A DDR 1,625 Joy 7LS1A DDR 2,092 Joy 7LS5 DDR 2,400 120 Cutting height (inches) Signal Peak Energy Mammoth Seam Seam height (inches) Bull Mountain Mine MONTANA (1) Mine Company (parent) 905 Joy 970 Joy 1,271 Cat 1,100 Joy 1,170 Joy 1,005 Joy 880 Cat 924 Cat 1.75M 1,173 Cat 2M 1,096 Cat 1,005 Joy 880 Cat 700 MEC 700 MEC 1,160 Joy 1,170 Joy Roof support yield (tons) 42 TIB 2x700 Joy/LW Associates 42 TIB 2x1,200 Cat 48 TIB 3x1,650 Cat 42 TIB 2x1,250 Cat 34 TIB 2x600 Joy Mining Machinery 48 TIB 3x1,900 Cat/ PF6 48 TIB 3x1,900 Cat/ PF6 48 TIB 3x1,650 Cat 48 TIB 3x1,650 Cat 42 TIB 3x1,650 Cat 48 TIB 3x1,900 Cat/ PF6 48 TIB 3x1,900 Cat/ PF5 48 TIB 3x1,960 AEMI 48 TIB 3x 1960 AEMI 50 TIB 3x1,150 Joy Mining Machinery 48 TIB 3x1,650 Cat Face conveyor type (strand, motors) 263 890/ 354 1,342/ 374 1,342/ 355 1,042/ 257 940/ 371 988/ 371 988/ 371 988/ 371 988/ 371 988/ 371 988/ 371 988/ 370 1,000/ 370 1,000/ 350 1,100/ 365 1,088/ Face conveyor width (mm)/ speed (fpm) 1,024 mm, 320 fpm MEC 1,388 mm, 477 fpm Caterpillar 1,388 mm, 464 fpm Caterpillar 1,188 mm, 472 fpm Caterpillar 1,250 mm, 320 fpm Joy Mining Machinery 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 Caterpillar 1,300 mm, 475 fpm MEC 1,300 mm, 475 fpm MEC 1,350 mm, 500 fpm Joy Mining Machinery 1,388 mm, 464 fpm Caterpillar Stageloader type width, speed MEC Cat Cat Cat Joy Cat Cat Cat Cat Cat Cat Cat MEC MEC Joy Cat Crusher Power Line Power Line Machine Service RAD Line Power/ Power Line Machine Service Machine Service Machine Service Machine Service Machine Service Power Line Power Line MCI MCI Machine Service Machine Service Electrical controls 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 4,10 Voltage to face u.s. longwall census continued February 2013