Coal Qualities

Robindale Energy & Associated Companies | Coal Qualities

Caring for the Environment

By cleaning up and restoring the land back to approximate original contour (AOC) or landscape, Robindale Energy has helped to reduce the amount of acid mine drainage, thereby cleaning up hundreds of miles of streams and channels. In areas where the land has been restored for a while, streams have become alive again and able to support plant and
fish life.

Volatility is critical in the steel-making and power generation process, as it determines the burn rate of the coal. High volatile content coals are easy to ignite, while low volatile coal, though more difficult to ignite, contains more energy per unit volume. Balancing the volatile content optimizes the ease of ignition, burn rate, and energy output of the coal.

Anthracite coal is a hard, compact variety of mineral coal that has the highest carbon count, the fewest impurities, and the highest calorific content of all types of coals. Anthracite coal is used mainly in power generation and in the metallurgy sector. Anthracite accounts for about 1% of global coal reserves and is mined in only a few countries around the world.

Robindale Energy offers multiple premium metallurgical coals.


LCT Brubaker Low-Vol

Ash: 6.00%

Sulfur: 0.85%

Volatile Matter: 18-20%

Reflectance: 1.65

Fluidity (ddpm): 100

FSI: 8.5-9.0

CSR: 67%


RES Mid-Vol

Ash: 7.5-8.0%

Sulfur: 1.0-1.20%

Volatile Matter: 24-26%

Reflectance: 1.30

Fluidity (ddpm): 3,000

FSI: 8.5-9.0

CSR: 66%


Lehigh Anthracite Coal Qualities

Ash: 8-12%

Sulfur: 0.65%

Volatile Matter: 3.0-4.0%

Fixed Carbon: 82-90%

Sizing Chart
EGG 3 2 7/16 76       62
STOVE 2 7/16 1 5/8 62 41
NUT 1 5/8 13/16 41 21
PEA 13/16 9/16 21 14
BUCK 9/16 5/16 14 8
RICE 5/16 3/16 8 5
BARLEY 3/16 3/32 5 2
NO4 3/32 3/64 2 1
NO5 3/64 100 mesh 1 100 mesh


Robindale Energy & Associated Companies is a global supplier of coal and coke products and is able to supply to both domestic and international customers. For more information regarding our products, please contact us at (814) 446-6700.