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|Products||Construction machinery, mining machinery, engines|
(from wikipedia entry, revision required, with redefined links and machine list adding)
Komatsu is a Japanese company that manufactures construction, mining, and military equipment, industry machinery such as press machines, lasers, and thermoelectric modules.
Komatsu is the world's second largest manufacturer of Construction and Mining Equipment after Caterpillar. However, in certain geographic areas (Japan, China, Middle East), Komatsu has a larger market share than Caterpillar.[citation (source) needed]
Its headquarters is at 2-3-6, Akasaka, Minato-ku, Tokyo, Japan.
Its name was taken after the current city of Komatsu, Ishikawa at the company's foundation there in 1917. Its main plants are located in the city.
Komatsu makes the largest bulldozer in production in the world, the D575, the Italian company Umberto ACCO built a one-off machine of 1,300 hp (970 kW), weighing in at 183 ton, for a contract in Libya, which never took place.
Komatsu Iron Works was started by Takeuchi Mining Industry as a subsidiary to make industrial tools for the parent company. Komatsu eventually became large enough to sell to the public, and was spun off on 1921-05-13 as Komatsu Ltd.
Komatsu produced its first agricultural tractor prototype in 1931. Through the 1930s, Komatsu also produced military tractors for the Japanese military, as well as bulldozers, tanks and howitzers. After World War II, Komatsu added non-military bulldozers and forklifts to its line of equipment. Its growth as a company was aided by the strong demand for its bulldozer during Japan's post-war reconstruction in the 1950s. By 1957 they had advanced enough technologically that all of there models were also using Komatsu's own engines.
Komatsu began exporting its products in the 1960s, looking to counteract the postwar image of Japanese products as being cheap and poorly made, and entered the U.S. market in July 1967, taking on Caterpillar, the world's largest bulldozer maker, in its home market, under the leadership of President Yashinari Kawai. Komatsu did so under the rallying cry "Maru-C", translating into English as "encircle Caterpillar" (in the context of Go (board game) encircling an opponent results in capture of their territory).
Komatsu and Dresser Industries established Komatsu Dresser to make mining tractors and related equipment. This 50–50 ownership lasted from September 1988 to August 1994, when Komatsu bought out Dresser's share, and Komatsu's mining products were consolidated under the name Komatsu Mining Systems in 1997. To prevent brand name confusion due to the corporate changes, the name "Haulpak" is used for the product line Komatsu began with Dresser.
Komatsu owns the former Demag range of Mining Machines, which have been upgrades but are basically the same, with the PC3000 being the old Demag H185, of which over 200 have been built under both brands/model nos.
In 1993, two joint ventures were formed with Cummins; Komatsu Cummins Engine Corporation (KCEC) to manufacture Cummins engines in Japan, and the Cummins Komatsu Engine Corporation (CKEC) to manufacture Komatsu engines in the USA. Another joint venture was set up in 1997 to manufacture industrial engines in Japan.
- A new 375 ton Dump truck was released in 2008.
- A hybrid machine the Komatsu PC200-8 Hybrid was released in Japan in June 2008. This machines a s smaller engine and Diesel-electric drive system boosted by a battery pack.
- Main article: Komatsu (UK) Ltd
Komatsu (UK) Ltd was set up in the UK in 1985, and with a factory started manufacturing at Birtley in Co.Durham, England in 1987. The Factory Started by assembling kits imported from abroad, but was always to actually build machines from scratch, and today is a major exporter to Europe of machines in the 13 ton to 75 ton class. They built 3900 machines in 2004 and production has since increased to meet demand at home and in export markets.[citation (source) needed]
The factory is a full production line fabricating pre-cut plate & sheet steel to make the major elements from scratch, like booms and main frames. The factory is a former Caterpillar plant, that was used to benefit from the North East's Engineering and fabrication skills base from the ship building & heavy industries following there decline in the 1970s. Caterpillar still have a plant near by at Peterlee that builds ADTs.
- Main article: Marubeni Komatsu
- 5 Wheeled machines from 13t to 22t
- 13 crawler machines from 13t to 75t
- Crawler excavators
- Wheeled loaders
- Dumper trucks
|Model No.||Power kW / HP||Weight (kg)||Blade size||Notes|
|D37EX/PX-22||66 / 89||8 300 - 8 650||3 250 × 830 (Power Angle Tilt) / 1,95 (PX)|
|D51EX/PX-22||97 / 130||12 710 - 13 100||3 045 × 1 110 / 2,7 (Power Angle Tilt)|
|D61EX/PX-15||125 / 168||16 670 - 18 260||3 175 × 1 300 (Semi-U blade single tilt) / 4,3 (EX)|
|D65EX/PX-15||153 / 205||20 280 - 21 020||3 415 x 1 225 / 3,89 (EX)|
|D85EX/PX-15||197 / 264||27 650 - 28 100 290||3 635 x 1 580 (Semi U-tilt) / 5,2 (EX)|
|D155AX-6||264 / 354||39 500 / 412||4 060 × 1 850 / 9,4 (Sigmadozer)|
|D275AX-5||335 / 449||49 850 / 450||4 300 x 1 960 / 13,7|
|D375A-5||391 / 525||69 560 / 570||5 140 x 2 265 / 22,0|
|D475A-5||664 / 890||108 390||6 205 × 2 610 / 34,4 Full-U: 6 205 × 2 610 / 34,4|
- Komatsu D50A - ? Direct Drive - 90 hp
- Komatsu D60A - ? Direct Drive - 140 hp
- Komatsu D65A - ? Torqueflow - 140 hp
- Komatsu D65E - ? Torqueflow - 155 hp
- Komatsu D85A - 1970s-80s
- Komatsu D475 - 1986-89 90 ton with 30.8 litres Engine SA8V170 ( A Cummins QSK 30) - 104 built.
- Swamp dozers
|Articulated Dump Trucks||HM300||HM350||HM400|
|Mechanical Dump Trucks||HD325||HD405||HD465||HD605||HD785||HD1500|
|Skid Steer Loaders||SK815||SK820||SK1020||SK1026|
- Wikipedia for base article
- Earthmovers Magazine (article on Komatsu Birtly factory)
- ISBN 0646396978 - A History of Komatsu Construction and Mining Equipment Volume One
|This page uses some content from Wikipedia. The original article was at Komatsu Limited. The list of authors can be seen in the page history. As with Tractor & Construction Plant Wiki, the text of Wikipedia is available under the Creative Commons by Attribution License and/or GNU Free Documentation License. Please check page history for when the original article was copied to Wikia|