Find all needed information about Joy Longwall Roof Support. Below you can see links where you can find everything you want to know about Joy Longwall Roof Support.
https://mining.komatsu/product-details/powered-roof-supports
Joy powered roof supports, for high-capacity longwall applications, are custom designed to meet your exacting cycle and operating requirements: Ratings up to 1,750 tonnes Widths of 1.5, 1.75, and 2.05 meters Heights from 0.8 to 7.8 meters
https://mining.komatsu/underground-mining/longwall-systems
Joy complete longwall systems represent the ultimate solution for high-production longwall mining. Joy incorporates best-in-breed shearers, roof supports, face conveyors, stageloaders, crushers, and mobile belt tail pieces to deliver a complete longwall system that is in a class of its own.
https://miningconnection.com/mfrs/featured_stories/article/joy_roof_supports_giants_of_longwall_mining/
“Joy has a long history of manufacturing roof supports and other components of longwall systems. In 1996, Joy not only became the first single-manufacturer of complete longwall mining systems with the acquisition of Longwall International, it also acquired Longwall’s expertise in manufacturing roof supports, which goes back to 1950.
https://im-mining.com/2010/04/07/joy-roof-supports-giants-of-longwall-mining-produced-the-highest-capacity-roof-support/
“Joy has a long history of manufacturing roof supports and other components of longwall systems. In 1996, Joy not only became the first single-manufacturer of complete longwall mining systems with the acquisition of Longwall International, it also acquired Longwall’s expertise in manufacturing roof supports, which goes back to 1950.
https://www.cat.com/en_US/products/new/equipment/underground-longwall.html
Cat® customized systems for longwall mining range from hydraulic roof supports and automated plow systems to shearers, face conveyors and roof support carriers. This site uses and sets "cookies" on your computer to help make this website better by keeping the site reliable and secure, personalizing content and ads, providing social media ...
https://www.cat.com/en_US/products/new/equipment/underground-longwall/roof-supports/18346354.html
The Longwall Top Coal Caving (LTCC) roof support allows mining to a total seam height of more than 10 m (33 ft) by using a longwall shearer to cut the bottom 2.8-3.0 m (9.2-9.8 ft) and then caving the top coal behind the roof supports onto a rear AFC. This type of longwall is in service for example at a mine in the Hunter Valley, Australia.
http://www.undergroundcoal.com.au/longwall/facesupports.aspx
EQUIPMENT SELECTION b) Face Supports. While it is frequently argued (correctly) that all items on a longwall face have to be considered as parts of an integrated unit and be fully compatible, it cannot be denied that poorly designed and inadequate roof supports are likely to have a greater effect on results than other items, and to that extent are more important.
https://www.youtube.com/watch?v=flePGEGtIAQ
Apr 30, 2015 · Cat Longwall Top Coal Caving (LTCC) roof supports allow mining of seams seams thicker than 6 meters (20 feet). Following a conventional cut with a shearer to about 3 m (9.8 ft) the roof supports...
https://www.youtube.com/watch?v=N8hXAGNfQmU
Apr 12, 2016 · It includes an explanation of the different products/key components of a long-wall mining system (long-wall shearer, automated plow system, AFC face conveyor, line pans, CST drive system, roof ...
https://en.wikipedia.org/wiki/Longwall_mining
Longwall has better resource recovery (about 80% compared with about 60% for room and pillar method), fewer roof support consumables are needed, higher volume coal clearance systems, minimal manual handling and safety of the miners is enhanced by the fact that they are always under the hydraulic roof supports when they are extracting coal.
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