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Komatsu D575
The Komatsu D575A is a tractor crawler produced in a 'SR' or Super Ripper bulldozer/ripper configuration, or as a dedicated bulldozer in the form of the 'SD' or Super Dozer. Both models can move of material per pass using the standard blade. The D575A-3 SD Super Dozer can move of material per pass if equipped with an optional blade. The D575A-3 can dig to a maximum depth of using its single-shank ripper. Commonly referred to as the 'world's largest production bulldozer', the D575A series bulldozers were produced by Komatsu Ltd. in Osaka, Japan. Surface mine operators in the United States, Australia and Japan were the primary users of the D575A, although they were sometimes used in heavy construction applications and quarries as well. Development Komatsu first showed a bulldozer prototype, the D555A, to the public at the Conexpo equipment exhibition in Houston, Texas in 1981. Due to economic conditions at the time, development was stalled for much of the 1980s. A successor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tractor Crawler
Continuous track is a system of vehicle propulsion used in tracked vehicles, running on a continuous band of treads or track plates driven by two or more wheels. The large surface area of the tracks distributes the weight of the vehicle better than steel or rubber tires on an equivalent vehicle, enabling continuous tracked vehicles to traverse soft ground with less likelihood of becoming stuck due to sinking. Modern continuous tracks can be made with soft belts of synthetic rubber, reinforced with steel wires, in the case of lighter agricultural machinery. The more common classical type is a solid chain track made of steel plates (with or without rubber pads), also called caterpillar tread or tank tread, which is preferred for robust and heavy construction vehicles and military vehicles. The prominent treads of the metal plates are both hard-wearing and damage resistant, especially in comparison to rubber tyres. The aggressive treads of the tracks provide good trac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-called compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine (gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Diesel engines work by compressing only air, or air plus residual combustion gases from the exhaust (known as exhaust gas recirculation (EGR)). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases the air temperature inside the cylinder to such a high degree that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of the fuel is une ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tracked Vehicles
Continuous track is a system of vehicle propulsion used in tracked vehicles, running on a continuous band of treads or track plates driven by two or more wheels. The large surface area of the tracks distributes the weight of the vehicle better than steel or rubber tires on an equivalent vehicle, enabling continuous tracked vehicles to traverse soft ground with less likelihood of becoming stuck due to sinking. Modern continuous tracks can be made with soft belts of synthetic rubber, reinforced with steel wires, in the case of lighter agricultural machinery. The more common classical type is a solid chain track made of steel plates (with or without rubber pads), also called caterpillar tread or tank tread, which is preferred for robust and heavy construction vehicles and military vehicles. The prominent treads of the metal plates are both hard-wearing and damage resistant, especially in comparison to rubber tyres. The aggressive treads of the tracks provide good trac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Komatsu Bulldozers , a cadet branch of the Japanese royal family
{{disambiguation, geo ...
Komatsu may refer to: * Komatsu (surname), a Japanese surname *Komatsu, Ishikawa, a city in the Ishikawa prefecture in Japan *Komatsu Airport, an airport *Komatsu Limited, a company mostly known for manufacturing industrial machinery * Komatsu LAV, an armoured car * Komatsu, Ehime, a former town, merged into Saijō, Ehime * Komatsu (Japanese restaurant), a Japanese restaurant in Yokosuka, Kanagawa, Japan *Komatsu College, a private junior college in Komatsu, Ishikawa, Japan, established in 1988 See also *Komatsu-no-miya The Komatsu House (''Komatsu-no-miya'') or Higashifushimi (東伏見) ''ōke'' (princely house) was the sixth oldest branch of the Imperial House of Japan, created from branches of the Fushimi-no-miya house, presently extinct. It was founded by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Komatsu Vehicles , a cadet branch of the Japanese royal family
{{disambiguation, geo ...
Komatsu may refer to: * Komatsu (surname), a Japanese surname *Komatsu, Ishikawa, a city in the Ishikawa prefecture in Japan *Komatsu Airport, an airport *Komatsu Limited, a company mostly known for manufacturing industrial machinery * Komatsu LAV, an armoured car * Komatsu, Ehime, a former town, merged into Saijō, Ehime * Komatsu (Japanese restaurant), a Japanese restaurant in Yokosuka, Kanagawa, Japan *Komatsu College, a private junior college in Komatsu, Ishikawa, Japan, established in 1988 See also *Komatsu-no-miya The Komatsu House (''Komatsu-no-miya'') or Higashifushimi (東伏見) ''ōke'' (princely house) was the sixth oldest branch of the Imperial House of Japan, created from branches of the Fushimi-no-miya house, presently extinct. It was founded by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caterpillar D11
The Caterpillar D11T is a large bulldozer, manufactured by Caterpillar Inc. in East Peoria, Illinois, and mainly used in the mining industry. Primarily designed as a bulldozer, it is also used for push-loading scrapers, and ripping rock overburden. History D11N The D11N was introduced in February 1986 to replace the D10. The D11N had some major improvements over the D10: it includes a bigger track and blade, and a longer track by . The U blade was just under long and high. This increased the blade capacity to . The D11N's weight was . It was powered by a , 3508 V-8 diesel engine. The D11N's improvements made it over 10 percent more productive than the D10. In 1987 a hydraulically powered impact ripper was added to the D11N which raised the weight up to . This would become known as the D11N Impact Ripper. D11R & D11R Carrydozer The D11R and D11R Carrydozer were introduced in Las Vegas, Nevada, at MINExpo International in 1996. Both were and that would be increased to later i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Komatsu D475A
The Komatsu D475A is the second largest bulldozer in the Komatsu line after the D575A, the world's largest production bulldozer. The current version is the , D475A-8 Tier 4. There are several versions of the D475A that are used in surface mining, open-pit mining, quarries and construction worldwide. The D475A-1 was introduced in 1986 as a replacement for the D455A. See also * Komatsu D575A * Caterpillar D10 * Caterpillar D11 The Caterpillar D11T is a large bulldozer, manufactured by Caterpillar Inc. in East Peoria, Illinois, and mainly used in the mining industry. Primarily designed as a bulldozer, it is also used for push-loading scrapers, and ripping rock overburden ... References Further reading * * External links Komatsu America Corp. D475A-5 Tier 2 product page(archived on 2010-10-26) Komatsu D475A-5 With Tier 2 Engine Product Brochure AESS724-00 04/06 (EV-1)(archived on 2010-10-26) Dozer's Guide Komatsu vehicles Komatsu bulldozers Tracked vehicles Bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Coast, New Zealand
The West Coast ( mi, Te Tai Poutini, lit=The Coast of Poutini, the Taniwha) is a regions of New Zealand, region of New Zealand on the west coast of the South Island that is administered by the West Coast Regional Council, and is known co-officially as Te Tai Poutini. It comprises the Territorial authorities of New Zealand, territorial authorities of Buller District, Grey District and Westland District. The principal towns are Westport, New Zealand, Westport, Greymouth and Hokitika. The region, one of the more remote areas of the country, is also the most sparsely populated. With a population of just 32,000 people, Te Tai Poutini is the least populous region in New Zealand, and it is the only region where the population is declining. The region has a rich and important history. The land itself is ancient, stretching back to the Carboniferous period; this is evident by the amount of carboniferous materials naturally found there, especially coal. First settled by Ngāi Tahu, Kāi T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stockton Mine
Stockton Mine, on the Stockton Coal Field, is New Zealand's largest opencast mining operation. The entrance to the mine is at the former settlement of Stockton. Extent The coal field is situated between 5 and 10 kilometres linear distance south west of Stockton. The southernmost part of the coal field is only 5 km away from the historic mining town of Denniston. The elevation of the coal field varies between 500 and 1100m above sea level. The Stockton coal field dips to the Northeast with approximately the same dip as the Denniston Coal Field, 15 km to the south. Both fields contain Bituminous Hard Coking Coal. The extracted coal is transported from the mine to an aerial ropeway near Stockton. The coal is transported to Ngakawau using this ropeway, doing away with the dangerous railway operation that plagued the Millerton and Denniston Inclines. From Ngakawau, most of the coal is transported by rail to Lyttelton, where it is exported via ship to steel makers in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpha Natural Resources
Alpha Natural Resources is a large American producer of metallurgical coal ("met coal") for the industrial production of steel and iron and low-sulfur thermal coal ("steam coal") to fuel steam boilers for the production of electrical power. In November, 2018 the company was acquired by Contura Energy. The company also provides industry services relating to equipment repairs, road construction and logistics, with domestic operations and coal reserves within the states of Virginia, West Virginia, Kentucky, Wyoming, Utah, Illinois, Tennessee, and Pennsylvania. Alpha Natural Resources does not produce all of the coal it sells; much of the coal sold by Alpha Natural Resources is purchased from independent mining operations and then resold in the worldwide market. The 2009 takeover of Foundation Coal provided Alpha Natural Resources with the ability to directly access the Cumberland Mine Railroad and to rail transport coal in Pennsylvania. In 2014, Alpha Natural Resources settled on a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Virginia
West Virginia is a state in the Appalachian, Mid-Atlantic and Southeastern regions of the United States.The Census Bureau and the Association of American Geographers classify West Virginia as part of the Southern United States while the Bureau of Labor Statistics classifies the state as a part of the Mid-Atlantic regionMid-Atlantic Home : Mid-Atlantic Information Office: U.S. Bureau of Labor Statistics" www.bls.gov. Archived. It is bordered by Pennsylvania to the north and east, Maryland to the east and northeast, Virginia to the southeast, Kentucky to the southwest, and Ohio to the northwest. West Virginia is the 10th-smallest state by area and ranks as the 12th-least populous state, with a population of 1,793,716 residents. The capital and largest city is Charleston. West Virginia was admitted to the Union on June 20, 1863, and was a key border state during the American Civil War. It was the only state to form by separating from a Confederate state, the second to sepa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ground Pressure
Ground pressure is the pressure exerted on the ground by the tires or tracks of a motorized vehicle, and is one measure of its potential mobility, especially over soft ground. It also applies to the feet of a walking person or machine. Ground pressure is measured in pascals (Pa) which corresponds to the United States customary units unit of pounds per square inch (psi). Average ground pressure can be calculated using the standard formula for average pressure: ''P'' = ''F''/''A''. In an idealized case, i.e. a static, uniform net force normal to level ground, this is simply the object's weight divided by contact area. The ground pressure of motorized vehicles is often compared to the ground pressure of a human foot, which can be 60 – 80 kPa while walking or as much as 13 MPa for a person in spike heels. Increasing the size of the contact area on the ground (the ''footprint'') in relation to the weight decreases the ground pressure. Ground pressure of 14 kPa (2 psi) or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
