The Caterpillar D4 track-type tractor is a small bulldozer manufactured by Caterpillar Inc.
Caterpillar first introduced the RD4 in 1936, [1] as the diesel follow on to the successful CAT 30 gas model. The RD4 originally weighed in at 10,000 pounds (4,500 kg), and used Caterpillar's D4400 engine, an inline four-cylinders, with a 4.25 by 5.50 inches (108 mm × 140 mm) bore and stroke. [2] In 1935 Caterpillar had started the naming convention of "RD" for diesel or "R" for regular gasoline, followed by a number to indicate the relative engine size. [3] In 1937, the "R" was dropped, and just a "D" was used for the diesel versions. At the time of introduction of the RD4, the D4400 engine produced about 43 horsepower (32 kW) at the drawbar so the 4 indicated the relative engine power. The D4 U series was fitted with the more powerful D315 engine. The later D4 series engines quickly increased in power, so the number "4" just became a figure of merit rather than indicating actual engine power.
The Caterpillar D4 was used as the base tractor for the Trackson built loader that was known as the T4 or Traxcavator shovel. [6]
Caterpillar Inc., also known as CAT, is an American construction, mining and other engineering equipment manufacturer. The company is the world's largest manufacturer of construction equipment.
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.
The Caterpillar D6 track-type tractor is a medium bulldozer manufactured by Caterpillar Inc. with a nominal operating weight of 18 short tons (16 t). The military versions were classified as the SNL G152 medium tractor, under the G-numbers classification system used for army tractors.
In civil engineering, a wheel tractor-scraper is a type of heavy equipment used for earthmoving. It has a pan/hopper for loading and carrying material. The pan has a tapered horizontal front cutting edge that cuts into the soil like a carpenter's plane or cheese slicer and fills the hopper which has a movable ejection system. The horsepower of the machine, depth of the cut, type of material, and slope of the cut area affect how quickly the pan is filled.
Farmall was a model name and later a brand name for tractors manufactured by International Harvester (IH), an American truck, tractor, and construction equipment company. The Farmall name was usually presented as McCormick-Deering Farmall and later McCormick Farmall in the evolving brand architecture of IH.
The Caterpillar Sixty is a 60 horsepower (45 kW) crawler tractor manufactured by the Caterpillar Tractor Company from 1925 until 1931. The Sixty was the largest tractor in Caterpillar's product line at that time.
The Caterpillar 797 is a series of off-highway, ultra class, two-axle, mechanical powertrain haul trucks developed and manufactured in the United States by Caterpillar Inc. specifically for high-production mining and heavy construction applications worldwide. In production since 1998, the 797 series represents Caterpillar’s largest, highest capacity haul trucks. The current, third-generation model, the 797F, offers one of the largest haul truck payload capacities in the world, up to 400 short tons (363 t) and has the highest payload capacity among mechanical drive haul trucks.
The Farmall Cub or International Cub was the smallest tractor manufactured by International Harvester (IH) under either the McCormick-Deering, Farmall, or International names from 1947 through 1979 in Louisville, Kentucky.
Clarence Leo Best, usually known as C. L. Best, was an American manufacturing executive. C. L. Best founded the C. L. Best Gas Traction Company in 1910 then merged his company with Holt Manufacturing Company to form Caterpillar Tractor Company in 1925. C. L. Best was chairman of the board of Caterpillar Tractor Company from its founding until his death in 1951.
Challenger is an American brand of agricultural tractors. Created in 1986 by Caterpillar Inc., the brand was sold to AGCO in 2002. Since then, Challenger tractors have been manufactured at the company's Jackson, Minnesota facility.
The Caterpillar D5 is a small track-type bulldozer manufactured by Caterpillar Inc. The original D5 series was only produced in 1939. The current D5 series being produced is the D5K.
Traxcavator was a namebrand of the Trackson Company of Milwaukee, Wisconsin. The word "Traxcavator" came from combining "tractor" and "excavator".
The GE Universal Series is a series of diesel locomotives intended for the export market introduced by General Electric in early 1956. General Electric had previously partnered with Alco, producing locomotives for export using Alco's 244 engine, and provided electrical parts for Alco's domestic production. However, with the advent of the Universal Series, GE ended its partnership with Alco and entered the export locomotive market on its own.
The Sno-Freighter is a one-of-a-kind land vehicle designed by LeTourneau Technologies for Alaska Freight Lines in the 1950s. During that decade, Alaska Freight Lines won the contract to transport construction material to build the Distant Early Warning Line (DEW) in far northern Alaska and Canada. At the time, no roads crossed the Arctic Circle in North America, there were almost no runways for air transportation, and the polar ice cap prevented seaborne transport.
Prior to and during World War II the United States Army called several tractors M1 Light Tractor. Under the Ordnance Corps these commercial off-the-shelf tractors were meant to tow artillery pieces so were not equipped with blades like their Engineer counterparts. Eventually these were replaced by purpose built "High Speed Tractors" (HST). Some tractors were equipped with crane attachments for ammunition, and material handling.
The Hercules DFXE was an American diesel truck engine produced by the Hercules Engine Company.
The John Deere Model G tractor was a large three-plow row-crop tractor produced by John Deere from 1937 to 1953, with successor models produced until 1961. It was followed by the 70, 720, and 730.
The John Deere Model L tractor was a small one-plow row-crop tractor produced by John Deere from 1937 to 1946.
The John Deere Model R tractor was John Deere's first diesel tractor. A large, heavy tractor, it had fixed wheel widths and was not produced as a row-crop tractor with adjustable axles. The R was followed in the John Deere numbered model series by the John Deere 80, 820 and 830 tractors, which represented evolutionary upgrades to the basic R.