KAMY offers unmatched quality, value, and innovation in our rock and concrete cutting products. Our expertise in engineering and our quality, US manufactured tunneling, mining and construction equipment is unparalleled to others in the industry.
KAMY is the leading manufacturer of roadheaders in the weight class of 13-100 tons weight. Our roadheaders offer interchangeable cutter heads, both transverse and axial and are custom engraved for each project. Our hydraulic cutters are suitable for material with uniaxial compressive strength ranging from 500 to 25,000 pounds per square inch. All of our products can be utilized in a variety of applications from rock excavation, trenching, demolition and concrete, to underwater cutting, tunneling, and scaling.
Technology led the establishment of the quality assurance after-sales service, improve the management system.
Production license of the product ensure that the license number, approval date and expiration date.
Product packaging in line with national regulations, due to packaging damage caused by the products borne.
Any difficulties encountered by customers, we will do our best in the first time to provide perfect service.
By Prof. A. Balasubramanian Centre for Advanced Studies in
early days of men tunneling, digging and manually extracting the coal on carts, to large open cut and long wall mines. The various methods of mining a coal seam can be classified under two ...Learn More
Tunnel Construction Methods and their comparison – Mining
27/07/2011 · Tunnel Construction Methods and their comparison . 1. Introduction – This paper gives a general description of the tunnelling techniques such as cut and cover, drill and blast, bored tunnelling and sequential mining construction, reviewed forLearn More
CHAPTER V MINING METHODS AND COAL PROCESSING
Inclination of coal seam is the main parameter for determining the type of wall face of mining stopes. Therefore, for extraction of coal reverse benching method is employed for extraction of coal from seams having dip more than 40 degrees whereas longwallLearn More
Resolve a DOI Name
Type or paste a DOI name into the text box. Click Go. Your browser will take you to a Web page (URL) associated with that DOI name. Send questions or …Learn More
Port Manteaux Word Maker - OneLook
Port Manteaux churns out silly new words when you feed it an idea or two. Enter a word (or two) above and you'll get back a bunch of portmanteaux created by jamming together words that are conceptually related to your inputs.Learn More
1980s' Timeline: Important Events of the '80s Everyone
One would best remember 1980s as the decade of MTV, Pac-Man, and MASH. While music and entertainment were fantastic over these years, it was also an era of economic development and international relations.Learn More
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The Universe, Cosmos, Galaxies, Space, Black Holes, Earth, Planets, Moon, Stars, Sun Solar SystemLearn More
What are the main methods of mining? | American
There are four main mining methods: underground, open surface (pit), placer, and in-situ mining. Underground mines are more expensive and are often used to reach deeper deposits.Learn More
The method of tunnel construction depends on such ... Shallow tunnels are often of the cut-and-cover type ... Tunnel formerly used for coal mining in New ...Learn More
Dynamic Monitoring of Water in a Working Face Floor Using
China type coal fields (Fig. 1a), Carboniferous and Permian ... mine DC method, which has been continuously improved and is well known in the Xinwen, Feicheng, and southwest- ... The strike of the coal seam is northwestern, inclin-ing to the northeast, wiLearn More
PDF Water Control in Underground Mines - Grouting or Drainage?
Mine dewatering is the most common method of water control in underground mines. Dewatering methods for underground mines can range from the relatively simple collection of water seeping into the mine from fractures or roof bolts, to more complex drillingLearn More
A novel method for estimating methane emissions from
A novel method for estimating methane emissions from underground coal mines: The Yanma coal mine, China ... the classification emission coefficient of an i-type coal mine (m 3 /t); P Ci /P C: the coal production weight of an i-type coal mine. Download higLearn More
roadheader attachment for excavator - Roadheaders
Hard rock drivage choose saw tunneling machine. About KM. KM is specialized in coal mining, coal mining, transportation equipment, research and development, manufacture and sale of large equipment. +86-21-57674157 [email protected] ... tunneling method foLearn More
Underground Coal Mine | Coal Mining - scribd.com
Underground Coal Mine ... 3.3 Coal-mining Method ... net ，injection and anchor cable Concrete or reinforced Concrete Type steel support set 6.4 Drift Tunneling: ...Learn More
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DealBook Briefing: ‘Brexit’ Deal Fails; What’s Next for Britain? Prime Minister Theresa May’s plan suffered a crushing defeat, which thrust Britain further into political chaos.Learn More
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A control method perspective on how dust in tunnels and underground mines can be reduced by proper use of ventilation, water and dust collectors is provided. Different methods such as dilution ...Learn More
tunneling method for coal mine strike type
miner tbm coal mine and tunneling machine; am105 coal mine roadheader tunneling; u135 coal mine drill bit roadheader cutting tools tunneling tools for miningLearn More
Coal Production in the United States - An Historical Overview
the form of immense western surface coal mines. Average U.S. mine size in 2003 at 0.814 ... excluding years affected by a major unionized coal strike, annual increases in coal production ... Energy Information Administration, October 2006 2. Table 1. HistLearn More
Glossary of Mining Terms - rocksandminerals.com
Back — The roof or upper part in any underground mining cavity. Backfill — Mine waste or rock used to support the roof after coal removal. Barren — Said of rock or vein material containing no minerals of value, and of strata without coal, or containing coLearn More
Underground mining techniques - Universidade Federal do
increase the efficiency of mine production. Modifying the mining method and introducing new, more powerful machines are actions ... coal, salt and potash, limestone, and dolomite. This method is used to recover resources in open stopes. The method leavesLearn More