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A tracked loader or crawler loader is an engineering vehicle consisting of a tracked chassis with a front bucket for digging and loading material. The history of tracked loaders can be defined by three evolutions of their design. Each of these evolutions made the tracked loader a more viable and versatile tool in the excavation industry.
The Oliver OC-9 was the first tractor crawler by Oliver Farm Equipment Company to employ the use of a torque converter. [2] Along with the OC-96 variant, this model was introduced in 1959 as the final model in the OC series, [1] marking a significant advancement in the company's technological standards.
CASE 580N tractor loader backhoe. Case was the first company to introduce the factory-integrated backhoe loader. [13] [14] In February 2017, the firm released an upgraded backhoe loader in Europe, which meets the Stage IV/Tier 4 Final emissions regulations. [15] [16] [17] CASE CX300D and CX370D crawler excavators.
A crawler excavator, also known as a track-type excavator or tracked excavator, is a type of heavy construction equipment primarily used for excavation and earthmoving tasks. It is characterized by its tracked undercarriage, which provides superior mobility and traction compared to wheeled excavators, especially in soft, uneven, or unstable ...
The Komatsu D575A is a 1,150 horsepower (860 kW) tractor crawler produced in a 'SR' or Super Ripper bulldozer/ripper configuration, or as a dedicated bulldozer in the form of the 'SD' or Super Dozer. [1] Both models can move 90 cubic yards (69 m 3) of material per pass using the standard blade.
A bulldozer or dozer (also called a crawler) is a large, motorized machine equipped with a metal blade to the front for pushing material: soil, sand, snow, rubble, or rock during construction work. It travels most commonly on continuous tracks , though specialized models riding on large off-road tires are also produced.