Excavators are heavy construction equipment consisting of a boom, dipper, bucket and cab on a rotating platform known as the "house". The house sits atop an undercarriage with tracks or wheels. They are a natural progression from the steam shovels and often mistakenly called power shovels. All movement and functions of a hydraulic excavator are accomplished through the use of hydraulic fluid, with hydraulic cylinders and hydraulic motors. Due to the linear actuation of hydraulic cylinders, their mode of operation is fundamentally different from cable-operated excavators which use winches and steel ropes to accomplish the movements.
A backhoe—also called rear actor or back actor—is a type of excavating equipment, or digger, consisting of a digging bucket on the end of a two-part articulated arm. It is typically mounted on the back of a tractor or front loader, the latter forming a "backhoe loader". The section of the arm closest to the vehicle is known as the boom, while the section that carries the bucket is known as the dipper, both terms derived from steam shovels. The boom is generally attached to the vehicle through a pivot known as the king-post, which allows the arm to pivot left and right, usually through a total of 180 to 200 degrees.
Heavy equipment or heavy machinery or Earthmover refers to heavy-duty vehicles specially designed to execute construction tasks, most frequently involving earthwork operations or other large construction tasks. Heavy equipment usually comprises five equipment systems: the implement, traction, structure, power train, and control/information.
A dragline excavator is a piece of heavy equipment used in civil engineering and surface mining.
Komatsu Ltd. or Komatsu (コマツ) is a Japanese multinational corporation that manufactures construction, mining, forestry and military equipment, as well as diesel engines and industrial equipment like press machines, lasers and thermoelectric generators. Its headquarters are in Minato, Tokyo, Japan. The corporation was named after the city of Komatsu, Ishikawa Prefecture, where the company was founded in 1921. Worldwide, the Komatsu Group consists of Komatsu Ltd. and 258 other companies.
A bucket-wheel excavator (BWE) is a large heavy equipment machine used in surface mining.
FMC Corporation is an American chemical manufacturing company headquartered in Philadelphia, Pennsylvania, which originated as an insecticide producer in 1883 and later diversified into other industries. In 1941 at the beginning of US involvement in WWII, the company received a contract to design and build amphibious tracked landing vehicles for the United States Department of War, and afterwards the company continued to diversify its products. FMC employs 7,000 people worldwide, and had gross revenues of US$4.7 billion in 2018.
Hitachi Construction Machinery (Europe) NV (HCME) is a subsidiary of Hitachi Construction Machinery Co.,Ltd. (HCM) and was established in 1972 in Oosterhout, The Netherlands. It is responsible for the manufacture, sales and marketing of Hitachi construction equipment throughout Europe, Africa and the Middle East.
The Euclid Company of Ohio was a company that specialized in heavy equipment for earthmoving, namely dump trucks, loaders and wheel tractor-scrapers. It operated in the US from the 1920s to the 1950s, when it was purchased by General Motors. It was later purchased by Hitachi Construction Machinery.
Sumitomo Heavy Industries, Ltd. (SHI) is an integrated manufacturer of industrial machinery, automatic weaponry, ships, bridges and steel structure, equipment for environmental protection, including recycling, power transmission equipment, plastic molding machines, laser processing systems, particle accelerators, material handling systems, cancer diagnostic and treatment equipment and others.
Ruston-Bucyrus Ltd was an engineering company established in 1930 and jointly owned by Ruston & Hornsby based in Lincoln, England and Bucyrus-Erie based in South Milwaukee, Wisconsin, the latter of which had operational control and into which the excavator manufacturing operation of Ruston & Hornsby was transferred. The Bucyrus company proper, from which the Bucyrus component of the Ruston-Bucyrus name was created, was an American company founded in 1880, in Bucyrus, Ohio.
JBT Corporation, or John Bean Technologies Corporation, is a global food processing machinery and airport equipment company. JBT Corporation was incorporated in 2008 when FMC Technologies divested its non-energy businesses. JBT Corporation is based in Chicago, Illinois. Its AeroTech division manufactures and services the Jetway brand of airport passenger loading bridges and other Ground Support Equipment such as Cargo Loaders, Deicers and pushback tractors. The company traces its history back to a company founded in 1884 by John Bean, an orchardist in Los Gatos, California.
P&H Mining Equipment designs, builds and supports a line of drilling and material handling machinery marketed under the "P&H" trademark and applied to minerals and energy surface mining operations worldwide. The firm is an operating subsidiary of Joy Global Inc. In 2017 Joy Global Inc. was acquired by Komatsu Limited of Tokyo, Japan and is now known as Komatsu Mining Corporation and operate as a subsidiary of Komatsu.
Joy Global Inc. was a company that manufactured and serviced heavy equipment used in the extraction and haulage of coal and minerals in both underground and surface mining. The company had manufacturing facilities in Alabama, Pennsylvania, Texas, Wisconsin, Australia, Canada, China, France, South Africa and the United Kingdom. In 2017, Joy Global was acquired by Komatsu Limited and was renamed Komatsu Mining Corp.
LiuGong, officially Guangxi LiuGong Machinery Co., Ltd., is a Chinese multinational construction machinery manufacturing company headquartered in Liuzhou, China. It is the world's 10th-largest construction equipment manufacturer by market share and the world's largest manufacturer of wheel loaders.
Hitachi Construction Machinery Co., Ltd. (日立建機株式会社) is a Japanese construction equipment company which is into the manufacturing, sales and service of construction machinery, transportation machinery, and other machines and devices. It is a subsidiary of the Hitachi Group.
William Dana Ewart invented and patented the linked belt, a square detachable link for chain belts, on September 1, 1874. The metal chain "linked belt" replaced the leather and strap belts used on agricultural equipment at the time.
Liebherr is a German-Swiss multinational equipment manufacturer based in Bulle, Switzerland, with its main production facilities and origins in Germany.
Xuzhou Construction Machinery Group Co., Ltd. is a Chinese multinational state-owned heavy machinery manufacturing company with headquarters in Xuzhou, Jiangsu. Founded in 1989, XCMG currently ranks first in the Chinese construction machinery industry, 3rd in the world, 4th in China's top 100 machinery enterprises, and 409th in the world's top 500 brands. Recently the company has taken over Schwing GmbH. Schwing a German manufacturer of mobile and stationary concrete pumps and truck mixers, headquartered in Herne, as well as the parent company of Schwing Stetter, based in Memmingen. The business group is the world's second largest concrete pump manufacturer, behind Putzmeister, another German manufacturer and subsidiary of the Sany Group.
CNH Industrial N.V. is an Italian-American multinational corporation with global headquarters in Basildon, United Kingdom, but controlled and mostly owned by the multinational investment company Exor, which in turn is controlled by the Agnelli family. The company is listed on the New York Stock Exchange and on Borsa Italiana: it is a constituent of the FTSE MIB index. The company is incorporated in the Netherlands. The seat of the company is in Amsterdam, Netherlands, with a principal office in London, England.
