radial percussive coal cutter
radial percussive coal cutter
[′rād·ē·əl pər′kəs·iv ′kōl ‚kəd·ər] (mining engineering)
A heavy coal cutter having a percussive drill, with extension rods; used in headings and rooms in pillar methods of working and for drilling shot-firing holes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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