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In 1942, the United States military created a new engineering unit that would be extremely mobile; this could only be done with light equipment. The military began looking for new bulldozer small and light enough to be flown in the Douglas C-47 and the Waco CG-4A. When the parameters were set the military looked for a company to create such a ...
Bulldozers are used heavily in large and small scale construction, road building, minings and quarrying, on farms, in heavy industry factories, and in military applications in both peace and wartime. The word "bulldozer" refers only to a motorized unit fitted with a blade designed for pushing.
Caterpillar D4H LGP (Low Ground Pressure) model, Eschborn, Germany. 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.
D5N was replaced with the D6K low drive hystat dozer, becoming the D4 in 2021; D5 D5LGP (current version) released in 2019, as a replacement for the D6N. High drive power shift dozer. The following models originated with the MHI (Mitsubishi Heavy Industries) partnership, providing smaller, low drive dozers, in the 20,000 lb range.
The cost of a new Cat D9 bulldozer is at least $900,000 (£739,624) but extensive “slat armour” editions and offensive capabilities mean the vehicle’s total cost likely exceeds £1 million.
The Wheatley Hall Road factory also produced agricultural crawler tractors BTD5/BTD6/BTD8/BTD20 in red as well as yellow CE bulldozer and loader versions. Wheatley also produced backhoe loaders (3400/3500/260) and Payloaders H25/500 Payloader/H30/H50 & H65.