Excavators come in a wide variety
of sizes.
The smaller ones are called a mini-excavator or compact excavator.
| In recent years, hydraulic excavator
capabilities have expanded far beyond excavation tasks. With the advent
of hydraulic powered attachments such as a breaker, a grapple or an
auger, the excavator is frequently used in many applications other than
excavation. Many excavators feature quick-attach mounting systems for
simplified attachment mounting, dramatically increasing the machine's
utilization on the job site.
Excavators are usually employed together with loaders and bulldozers. Most wheeled versions, and smaller, compact excavators have a small backfill (or dozer-) blade. This is a horizontal bulldozer-like blade attached to the undercarriage and is used for pushing removed material back into a hole. Excavators are also called diggers and 360-degree excavators, some times abbreviated simply to a 360. Tracked excavators are sometimes called trackhoes by analogy to the backhoe. Even though the 'back' in backhoe refers to the action of the bucket (which pulls "back" toward the machine) and not the location of the shovel, excavators are also occasionally referred to as fronthoes or even just "hoes" . |
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Caterpillar Incorporated, also known as CAT is a United States based corporation that is based in Peoria, Illinois. The company commonly known as CAT is known around the world as the largest manufacturer of construction and mining equipment, diesel and natural gas engines, and industrial gas turbines. Well known and famous for their products that feature the Caterpillar track and distinctive yellow paint, CAT produces a wide range of heavy equipment for all types of jobs, including the very popular Caterpillar D9 bulldozer. History The story of CAT dates back to the late 19th century, when Daniel Best and Benjamin Holt were experimenting with different ways to fulfil the promise that steam tractors held for farm work. Prior to 1925, the Holt family had pioneered track tractors and gasoline powered engines. After the companies of Best and Holt were merged, the company went through several changes then at the end of World War 2, they began to grow at a very fast pace, launching the first venture outside of the country in 1950, which marked the beginning of CAT development into a big corporation. CAT equipment ranges from track type tractors to hydraulic excavators, backhoes, motor graders, off road trucks, wheel loaders, tractors, diesel and gas engines, and gas turbines. CAT equipment is used in construction, excavation, building roads, mining, energy, forestry, transportation, and material handling companies. Sales Over half of CAT's sales are to customers in overseas areas. CAT products are sold in almost 200 different countries. The company has a worldwide network of over 200 dealers - 63 in the United States and over 150 in other countries. |
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CAT equipment and components are manufactured in 42 plants in the United States and 58 plants in Australia, Belgium, Brazil, Canada, England, France, Germany, India, Japan, Mexico, and several other countries. Labor CAT almost went down in the early 1980s due to the massive union strikes and a down turn in product demand. At the time, several news reports indicated that products were piling up so high in facilities that temporary workers hired to work the lines could barely get to their stations to perform their jobs. In the 1990s, CAT suffered yet another long strike in which the company hired what it deemed to be permanent replacements for union workers that were on strike. During both strikes, jack rocks were placed in the home entrances of many of CATs top executives and employees, puncturing the tires of their vehicles and making things worse for the company. Not long after the strike of the 1990s ended and the economy started to get back up again, CAT adopted the "6 Sigma" quality management program, to help reduce costs and inventory and identify and correct the defects in processes and products. |
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