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Published on Mar 12, 2013
Marion 8050 long swinging and digging both sides. The machine is digging a pre-strip pass for an 8750 to dig the pit spoil. Bench preparation for drilling is completed as the operation continues, and the bench is trimmed and graded for a good drilling surface and easy access. Dumping the spoil on the highwall side in the final strips in this pit enables cheaper rehabilitation of the area after the coal is removed, and reduces rehandle of the pre-strip material and speeding up the main pit stripping operation.