Sumping definitions

Sumping

To force the cutter bar of a machine into or under the coal. Also called a sumping cut, or sumping in.
Found on http://www.coaleducation.org/glossary.htm

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Sumping

To force the cutter bar of a machine into or under the coal. Also called a sumping cut, or sumping in.
Found on http://www.rocksandminerals.com/glossary.htm

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