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TeachMeFinance.com - explain Longwall mining machine Longwall mining machine The term 'Longwall mining machine' as it applies to the area of energy can be defined as 'shears coal from a long straight coal face (upto about 700 feet) by working back and forth across the face under a movable, hydraulic-jack roof-support system. The broken coal is transported by converyor. Longwall machines can mine coal at the rate of 1,000 tons per shift. Mine locomotive, operating on tracks, is used to haul mine cars containing coal and other material, and to move personnel in specially designed 'mantrip' cars. Large locomotives can haul more than 20 tons at a speed of about 10 miles per hour. Most mine locomotives run on electricity provided by a trolley wire; some are battery-powered'. Previous 5 Terms: Long-term debt Long-term purchase Long-term self-renewal Long-throated flumes Longwall mining Next 5 Terms: Longwave Radiation Longwave Trough loop Loop Loop flow About the author Mark McCracken Author: Mark McCracken is a corporate trainer and author living in Higashi Osaka, Japan. He is the author of thousands of online articles as well as the Business English textbook, "25 Business Skills in English". Copyright © 2005-2011 by Mark McCracken, All Rights Reserved. TeachMeFinance.com is an informational website, and should not be used as a substitute for professional medical, legal or financial advice. Information presented at TeachMeFinance.com is provided on an "AS-IS" basis. Please read the disclaimer for details.