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Coal Resource Recoverability
A Methodology

U.S. Bureau of Mines Circular 9368


Table 16.-Equipment-auger (twin head)

Capital equipment selection
Auger mining (twin-head auger)

Annual Total Mine
No. Total hrs Unit cost Depr term Hourly Str line equipment devel
Production deprec deprec costs amort
equipment

Twin-head auger 1 16 $400,000 40,000 $10.00 $38,400 $400,000 -
Auger head/flites 1 16 $575,000 30,000 $19.17 $73,600 $575,000 -
4 cy coal loader 1 16 $206,000 40,000 $5.15 $19,776 $206,000 -

Annual depreciation costs $131,776
Total capital equipment costs $1,181,000
Mine development amortization $0
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