Commonwealth Mining LLC is a Highwall Mining Services Co. that has Operated Highwall Miners in Ohio, West Virginia, Kentucky, Alabama and Virginia. We have provided consulting for Highwall Mining Operations in Australia and India as well as currently providing consulting services to Highwall Mining Companies throughout the United States.
The highwall mining machine is positioned on the pit floor or on a bench beside the highwall in front of the coal seam. A cutterhead attached to a string of push beams is thrust into the seam. The coal is mined by the shearing action of the cutterhead that is raised and lowered to dig out the entire height
ADDCAR Systems LLC is an international highwall mining (HWM) specialist based in Ashland Kentucky, USA with over 25 years experience operating HWM systems in the coalfields of Australia, USA, South Africa and India. ADDCAR highwall mining systems have produced in excess of 100Mt of coal and is the leader in maximising resource recovery and cost
Cat® push beams are 6 m (20 ft) long, rectangular, reinforced steel box structures joined together to form a string, which connects the highwall mining system to the cutter module. The push beam string is the backbone of the machine; pushing and pulling the cutter module in and out of the coal seam.
The signature of ADDCAR Highwall Mining is the unique Cascading Conveyor system that uses high speed open conveyors that overlap to feed coal from the miner to the stacker conveyor without increasing fines. Support Equipment. End Loaders, Stacker Conveyors, Diesel Generators, Water Tankers, Pull & Carry Dollies and Auxiliary Equipment. About.
Mega Highwall Mining LLC. (Mega) was founded in 2015. We operate both ADDCAR and Superior/Cat highwall mining systems. Mega recruits the best operators from around the industry. We are dedicated to producing results safely. We take great pride in our machines
Mega Highwall Mining LLC. 12081 Virginia Boulevard, Ashland, Kentucky 41102, United States. Office: (606) 929-5590 Fax : (606) 929-5513
The Cat highwall mining system is equipped with a comfortable, climate controlled, pressurized cab that offers full line of sight to the highwall, strip pit, support staff and support equipment. The full suspension operator seat and the two user-friendly touchscreens create an ergonomic workplace, placing controls and system information at the
American Highwall Systems, Inc. (AHS) provides a radical alternative to current highwall mining equipment. With AHS highwall mining systems, mine operators can mine previously unrecoverable coal seams of various heights and slopes and unmatched seam penetrations.
@article{osti_5631032, title = {Design of highwall mining equipment electronic guidance package}, author = {Brenden, B B and Morgen, G P and Shorpik, J R and Farrar, R}, abstractNote = {This report provides design specifics and guidance software for a guidance system intended for use in guiding an auger type highwall mining head through thin coal seams to depths of up to 600 ft.
Highwall mining is used to mine coal from underneath the inal highwall, when the strip limit is reached due to economic reasons or surface conditions • Contour mining: In a mountainous area, the Cat highwall mining system can follow a coal seam along the side of the hill • Trench mining: The unit mines coal from both sides of a purpose-prepared
Professional Highwall. located in Beckley, WV is your one stop WorldWide Highwall Mining Experts! Over the last 2 years we have successfully brokered 4 used Highwall Miners. With less than 100 machines built my staff knows where every machine is located.
Mar 14, 2016· Do not dig into the toe of a high wall. Increase the number of benches at each high wall to catch falling material. Use CB radios to keep equipment operators informed of high wall conditions. MSHA Rules To Live By High Wall Safety In Surface Mining . There are also several applicable points from the MSHA Rules To Live By initiative.
Mar 13, 2012· High Wall Mining Technology• Highwall Mining is a remotely controlled mining method, which extracts coal from the face of a coal seam under a highwall in a surface mine, which has reached the final highwall position due to uneconomic stripping ratios Or due to local constraints which limit further surface mining.• The coal left in the High
Jul 25, 2017· To drill directly into the “high walls” left by surface mining in an economic way, requires specialized equipment. Highwall mining is actually a hybrid of surface and underground mining technologies. It is a people-free, low footprint mining process which uses high power hydraulic cylinders as part of a Pushbeam Transfer System.
Mining methods shall be used that will maintain wall, bank and slope stability in places where persons work or travel in performing their assigned tasks. When benching is necessary,the width and height shall be based on the type of equipment used for cleaning of
Linking underground and surface mining operations, the Cat® Highwall Mining System is a testament to versatile mining equipment. The Cat HW300 offers a safe
The self-contained Cat highwall mining system offers an innovative method for extracting coal from outcropping seams in a multitude of applications. Highwall Miner: Bridging the Gap Linking underground and surface mining operations, the Cat® highwall mining system is a testament to versatile mining equipment.
Figure 9 shows the damaged highwall mining equipment by the falling rocks from the . top soil and weathered rock zone. Apparently, the highwall under the failed top zone has failed .
Highwall mining is a coal mining method for recovery of outcropped coal by mechanical excavation without removal of overburden. A continuous miner with single or multiple underground mining equipment is specialized and expensive. A number of surface mines operate 24 hours/da y and almost 365 days/year in order to use