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JOY
Wethead Continuous Miner Improves Safety and Cuts Cost
WARRENDALE,
PA — Joy Mining Machinery’s second generation wethead continuous miner
continues to improve mine safety and productivity by further reducing respirable
dust levels, improving visibility and reducing the potential for frictional
ignitions while reducing bit costs, the company said. In comparing Mine Safety and Health Administration (MSHA)
dust samplings for two mines covering six months before and after the
introduction of the JOY wethead, Joy said there were significant dust
reductions, reflecting an earlier Southern Illinois University study showing
reductions at the miner’s return side of 35% on average.
In addition, Joy said bit consumption was significantly reduced by 50% on
average, and as high as 70% at one South African test site. Costing as much as
$10 each, that represents potential annual savings of $50,000 per machine. Also,
from the first machine tested underground in 1995 to today, not a single face
ignition has been associated with the miner.
The JOY wethead miner had been under development for 10 years before its
introduction to the market in March 2006. In 2007, 26 wethead miners entered
into production, and in 2008, an additional 26 machines are expected to join
them. Joy Mining Machinery, a
subsidiary of Joy Global Inc., is a global leader in the development,
manufacture, distribution and service of underground mining machinery for the
extraction of coal and other bedded materials. For more information on Joy
Mining Machinery visit www.joy.com.
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