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 28 www.coalage.com February 2012 Mine Company (parent) WEST VIRGINIA (13) Blacksville No. 2 CONSOL Energy Federal No. 2 Patriot Coal Loveridge CONSOL Energy McElroy CONSOL Energy Mountain View Mountaineer II Arch Coal Panther Patriot Coal Pinnacle No. 50 Cliffs Resources Revolution Seam Pittsburgh No. 8 Pittsburgh No. 8 Pittsburgh No. 8 Pittsburgh No. 8 Pittsburgh No. 8 Upper Alliance Resource Partners Freeport Alma & Eagle No. 3 Seam height (inches) Cutting Panel height (inches) width (ft) Panel length (ft) Over- burden (ft) 800- 80 96 98 60- 65 60- 65 78- 108 Cedar Grove 84 50 Pocahontas 48- 50 Alpha Natural Resources Powelton Robinson Run No. 95 CONSOL Energy Shoemaker CONSOL Energy Tunnel Ridge WYOMING (3) Bridger Pacific Minerals Green River Solvay Chemicals Westvaco FMC Corp. D41 Bed 17 Bed 17 Alliance Resource Partners No. 8 48 Pittsburgh No. 8 Pittsburgh No. 8 Pittsburgh 92 60- 65 62- 72 96- 144 96- 130 96- 132 82 88 94 84 84 78- 108 84 64 48- 50 78 87 65 68- 72 120 108- 130 96- 132 1,100 12,000 1,050 1,400 8,500 8,900 1,400 12,500 1,480 12,500 6,000- 8,000 3,100- 5,000 850 1,000 1,020 16,200 1,000 9,000 1,000 10,000 1,300 12,000 1,090 10,800 1,000 750 505 750 9,000 10,000 5,000 9,400 1,150 750- 1,400 800- 1,250 500- 1,100 500- 1,100 600- 800 300- 1,100 600- 1,000 600- 1,300 800- 1,000 500- 900 500- 1300 400 700 1,500 1,500 3 3 3 4 3 3 3 3 3 4 42 42 7 42 42 38 42 Joy 7LS3 39 34 32 DDR 1,330 Jumbotrac Cat EL3000 Jumbotrac DDR 2,736 Joy 7LS5 2000 DDR 2,360 Ultratrac 2000 3 3 3 3 3 3 42 36 42 42 42 42 No. of gate entries Depth of cut (inches) Shearer Haulage system Joy 7LS1A DDR 1,290 Joy 7LS1D Jumbo GearRack DDR 1620 Indirect Drive Ultratrac 2000 Joy 7LS2 Jumbo GearRack DDR 1,680 Indirect Drive Joy 7LS1A Super GearRack DDR 1620 2000 Joy 7LS1A Super GearRack DDR 1620 Joy 7LS1 2000 DDR 1,340 Joy 7LS2A DDR 1,666 Joy 7LS1A DDR 1,290 Cat GH 1600 Plow 1,080 Joy 7LS1A DDR 1,625 Ultratrac 2000 Ultratrac 2000 Jumbotrac 2000 Chain Ultratrac 2000 Joy 7LS2 Jumbo GearRack DDR 1,680 Indirect Drive Joy 7SL1A Jumbo Track DDR 1620 Joy 7LS1A 2000 Ultratrac 2000 Roof support yield (tons) Cat 840 Joy 1,005 Cat 865 Cat 882 Cat 893 Joy 815 Joy 1,040 Cat 1,271 Cat 715 Joy 875 Cat 840 Cat 800 Tunnel Ridge JSST-1,020 Cat 926 Cat 800 Joy 870 Face conveyor type (strand, motors) LW Associates 42 TIB 3x800 Joy Mining Machinery 42 TIB 3x700 Caterpillar/LW Associates 48 TIB 3x1900 Caterpillar/LW Associates 48 TIB 3x1,900 Caterpillar/LW Associates 48 TIB 3x1,900 Longwall Associates 38 TIB 2x700 Joy Mining Machinery 42 TIB 3x1,000 Caterpillar 48 TIB 3x1,200 Caterpillar 34 TIB 2x800 Joy Mining Machinery 42 TIB 3x1,072 Caterpillar/LW Associates 48 TIB 3x1,900 Caterpillar/PF4 42 TIB 3x750 Joy/LW Associates 42 TIB 3x1,073 Caterpillar 42 TIB 2x1,250 Caterpillar 38 TIB 2x700 Joy Mining Machinery 42 TIB 2x1,072 Face conveyor width (mm)/ speed (fpm) 1,000/ 350 890/ 270 1,000/ 365 1,000/ 365 1,000/ 365 950/ 229 1,000/ 337 988/ 320 1,032/ 366 890/ 347 1,000/ 365 988/ 350 1,000/ 340 1,000/ 357 950/ 330 1,100/ 268 Stageloader type width, speed Trinity 1,200 mm, 550 fpm Joy Mining Machinery 1,220 mm, 415 fpm Caterpillar 1,188 mm, 525 fpm Caterpillar 1,188 mm, 525 fpm Caterpillar 1,188 mm, 525 fpm Joy Mining Machinery 1,200 mm, 312 fpm Joy Mining Machinery 1,200 mm, 455 fpm Caterpillar 1,388 mm, 350 fpm Caterpillar 1,188 mm, 466 fpm Joy Mining Machinery 1,360 mm, 450 fpm Caterpillar 1,188 mm, 525 fpm Caterpillar 1,190 mm, 440 fpm Joy 1,294 mm, 443 fpm Caterpillar 1,388 mm, 423 fpm Caterpillar 1,532 mm, 477 fpm Joy Mining Machinery 1,294 mm, 385 fpm Legend: DDR 2,000 means double-drum ranging arm shearer with 2,000 hp installed. Cutting machines reported are all shearer type unless otherwise indicated. VFD—Variable Frequency Drive; SS—single strand; TIB—twin strand inboard; 42 TIB 2x1,000 means 42-mm chain, twin strand inboard, two 1,000-hp motors. *Note: AEMI=American Equipment and Machine, Inc., and MEC=Murray Energy Corp. Cat Cat Joy Cat Joy Cat Cat Cat Longwall Associates Joy Cat Cat Joy Cat Cat Joy Crusher Electrical controls Line Power Line Power Line Power Line Power Line Power Line Power Service Machine Service Machine Service Machine Service Machine Line Power Line Power Line Power Service Machine Service Machine Service Machine 4,160 4,160 4,160 4,160 4,160 4,160 4,160 4,160 4,160 4,160 4,160 2,300 4,160 4,160 4,160 2,300 Voltage to face

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