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Machinery


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September 24, 2007

17,400 hours of highwall mining and Deere loader still humming

  • In four years, the Deere 724J loader chalked up 17,400 hours with only a few minor issues.

    • Photo courtesy of John Deere [enlarge]
    The Deere 724J is used to add or remove 20-foot-long, 10,000-pound push-beams that join end-to-end and extend under a mountain into the coal seam.

    In the world of highwall coal mining, success or failure is measured in high dollars per hour.


     
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