Citizendia
Your Ad Here

A typical modern excavator:a CAT 325C, fitted with quick coupler and tilting bucket
A typical modern excavator:
a CAT 325C, fitted with quick coupler and tilting bucket

An excavator is an engineering vehicle consisting of an articulated arm (boom, stick), bucket and cab mounted on a pivot (a rotating platform, like a Lazy Susan) atop an undercarriage with tracks or wheels. Caterpillar Inc ( is a United States -based Corporation headquartered in Peoria Illinois. Engineering vehicles, known by the other terms construction Equipment, earth movers heavy equipment or just plain equipment are machines specifically designed to execute A Lazy Susan is a rotating tray placed on top of a table to aid in moving food on a large table or counter tops Continuous tracks are large (modular tracks used on the so-called caterpillar Tanks construction equipment and certain other off-road vehicles A wheel is a circular device that is capable of rotating on its axis facilitating movement or transportation whilst supporting a load ( Mass) or performing labour in machines Their design is a natural progression from the steam shovel. A steam shovel is a large steam-powered excavating machine designed for lifting and moving material such as rock and Soil.

Contents

Usage

Excavator demolishing a house. Note the hydraulic thumb
Excavator demolishing a house. Note the hydraulic thumb

Excavators are used in many roles:




Configurations

An excavator with sheeps foot compactor attachment
An excavator with sheeps foot compactor attachment

Excavators come in a wide variety of sizes. Mining is the extraction of valuable Minerals or other geological materials from the earth usually (but not always from an Ore body Open-pit mining, also known as opencast mining and open-cut mining and strip mining, refers to a method of extracting rock or Minerals "Riverine" redirects here For the use of that term in Maritime geography, see there Dredging is an Excavation activity or operation usually carried out at least partly underwater in shallow seas or Fresh water areas with the purpose of The smaller ones are called a mini-excavator or compact excavator. A compact hydraulic excavator or mini excavator is a tracked or wheeled vehicle with an approximate operating weight from 0 One manufacturer's largest model weighs 84,980 kg (187,360 lb) and has a maximum bucket size of 4. The pound or pound-mass (abbreviation lb, lbm, or sometimes in the United States #) is a unit of Mass 5 m³ (5. CM3 redirects here If you were looking for the 3rd game in the Cooking Mama series abbreviated as CM3 see here. 9 yd³). A cubic yard is an Imperial / US customary (non- SI non- metric) unit of Volume, used in the United States, Canada and The same manufacturer's smallest mini-excavator weighs 1470 kg (3240 lb), has a maximum bucket size of 0. 036 m³ (0. 048 yd³) and the width of its tracks can be adjusted to 89 cm (35 inches). A centimetre ( American spelling: centimeter, symbol cm) is a unit of Length in the Metric system, equal to one hundredth Inches redirects here To see the Les Savy Fav album see Inches. Another company makes a mini excavator that will fit through a doorway with tracks that can be adjusted to only 70 cm (28 inches) wide.

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. A breaker is a powerful percussion hammer fitted to an excavator for demolishing concrete structures or rocks A grapple is a Hook or claw used to catch or hold something A ship's Anchor is a type of grapple especially the "grapnel" anchor An auger is a device for moving material or liquid (see Archimedes' screw) by means of a rotating Helical flighting Many excavators feature quick-attach mounting systems for simplified attachment mounting, dramatically increasing the machine's utilization on the jobsite. Excavators are usually employed together with loaders and bulldozers. A loader is a type of construction equipment (engineering vehicle machinery that is primarily used to "load" material (asphalt demolition debris ----A bulldozer is a crawler ( Caterpillar tracked Tractor) equipped with a substantial metal plate (known as a blade) used to push large quantities Most wheeled versions, and smaller, compact excavators have a small backfill (or dozer-) blade. A compact hydraulic excavator or mini excavator is a tracked or wheeled vehicle with an approximate operating weight from 0 This is a horizontal bulldozer-like blade attached to the undercarriage and is used for pushing removed material back into a hole.

Terminology

Excavators are also called diggers and 360-degree excavators, sometimes abbreviated simply to a 360. Tracked excavators are sometimes called trackhoes by analogy to the backhoe. A backhoe, also called a rear actor or back actor, is a piece of excavating equipment consisting of a digging bucket on the end of a two-part articulated arm 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" .

Education

The National Association of Heavy Equipment Training Schools (NAHETS), established 2002, uses excavator training schools and circuilum as a method to test and train users in the ability of excavator use. The National Association of Heavy Equipment Training Schools (NAHETS founded 2005 is an association of heavy equipment operator training schools in the United States.


Gallery

John Deere excavator 330C.

Mini digger by Kubota

Caterpillar excavator. () is a tractor and heavy equipment manufacturer based in Osaka, Japan

Older American 35A in Borrow pit

Brand new excavator in Brittany (France). Brittany (Breizh bʁejs Bretagne; Gallo: Bertaèyn) is a former independent Celtic kingdom and Duchy, now incorporated into

Major manufacturers

See also

Types of excavator

Other

External links

The California-Nevada-Hawaii District Key Club International, Cali-Nev-Ha, or simply CNH is a governing body Orenstein & Koppel (normally abbreviated to " O&K " is a major German Engineering company and was founded on April 1, 1876 Bobcat Company is a Manufacturer of farm and construction equipment with headquarters in West Fargo North Case CE, also Case Construction Equipment or simply Case, is a brand of Construction equipment from CNH Global. Caterpillar Inc ( is a United States -based Corporation headquartered in Peoria Illinois. Doosan Group is a South Korean conglomerate quoted on the Korea Stock Exchange. This article is about the Chaebol Daewoo Group For the Korean auto company Daewoo Motors that is associated with Chevrolet, see GM Daewoo. Hydrema is a dump truck manufacturer based in Stovring, Denmark. Hyundai Heavy Industries Co Ltd (HHI is the world's largest shipbuilder company headquartered in Ulsan, South Korea. John Deere ( February 7, 1804 &ndash May 17, 1886) was an American blacksmith and manufacturer who founded Deere & Company &mdash JCB, or J C Bamford (Excavators Ltd as it is more properly known is a family business named after its founder J For the city called Komatsu in Ishikawa prefecture Japan see Komatsu Ishikawa. The Liebherr Group is a German manufacturer established in 1949 by Hans Liebherr headquartered in Biberach an der Riss, Baden-Württemberg. Manitowoc Company Inc ( is a global company specializing in products for the food service marine and construction industries Poclain is a family company founded by Georges Bataille in France in the 1930s then developed by his sons Pierre and Claude Bataille with help from Jacques and Bernard Bataille ST Kinetics ( is the land systems and specialty vehicles arm of ST Engineering. Terex Corporation is a diversified global manufacturer of a broad range of Heavy equipment for a variety of industries including construction infrastructure quarrying Volvo Construction Equipment (originally Volvo BM) is a Subsidiary and business area of AB Volvo. Backhoe loader, also called a loader backhoe, and commonly shortened to backhoe, is an Engineering vehicle, which consists of a Tractor, fitted Bucket-wheel excavators are Heavy equipment used in Surface mining and Civil engineering. A compact hydraulic excavator or mini excavator is a tracked or wheeled vehicle with an approximate operating weight from 0 Dragline excavation systems are Heavy equipment used in Civil engineering and surface Mining. The long reach excavator or high reach excavator is a development of the Excavator with an especially long boom arm that is primarily used for Demolition A skid loader or skid steer loader is a rigid frame engine-powered machine with lift arms used to attach a wide variety of labor-saving tools or attachments A steam shovel is a large steam-powered excavating machine designed for lifting and moving material such as rock and Soil. A Power shovel (also called a Stripping or Front Shovel in some markets is a bucket equipped machine usually electrically powered used for digging and loading earth or fragmented ----A bulldozer is a crawler ( Caterpillar tracked Tractor) equipped with a substantial metal plate (known as a blade) used to push large quantities Civil engineering is a professional engineering discipline that deals with the design construction and maintenance of the physical and naturally built Engineering vehicles, known by the other terms construction Equipment, earth movers heavy equipment or just plain equipment are machines specifically designed to execute The National Association of Heavy Equipment Training Schools (NAHETS founded 2005 is an association of heavy equipment operator training schools in the United States. A mining simulator is a system used to replicate elements of Mining operations for Training or efficiency analysis

Dictionary

excavator

-noun

  1. A person who excavates
  2. A curette used to scrape out pathological material
  3. A vehicle, often on tracks, used to dig ditches etc; a backhoe
© 2009 citizendia.org; parts available under the terms of GNU Free Documentation License, from http://en.wikipedia.org
 Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic