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This blade design was introduced by Komatsu on their D575 A-2 dozers in 1995 as the Superdozer version. The deeper curvature of the Carrydozer/Superdozer blades literally carry the dirt moved, and the weight of the load increases pressure on the undercarriage and is thereby increasing the traction of the bulldozer.
The D575A-2 SD Super Dozer was the second version of the D575A, going into production alongside the D575A-2 SR Super Ripper beginning in 1995. [3] The D575A-2 SD Super Dozer is an 1,150 horsepower (860 kW), 143,300 kilograms (315,900 lb) dedicated dozer with no ripper. The D575A-2 SD Super Dozer was superseded by the D575A-3 SD Super Dozer.
A "S-U" combination blade is shorter, has less curvature, and has smaller side wings. This blade is typically used for pushing piles of large rocks, such as at a quarry. Like many other bulldozers, the D9 can be fitted with other devices, such as mine plows. The rear ripper is intended for use in loosening rocky ground and ripping out larger ...
CAT D10N at work in Rishon LeZion, Israel. Among modern tractors, the High Drive (elevated sprocket) design was unique to Caterpillar products. The concept originated in 1914 with Caterpillar predecessor C. L. Best Tractor's 30 Humpback; [citation needed] this tractor was discontinued a year later, and the only other tractor to use the concept until the D10's introduction was the Cletrac Model ...
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.
The dozer blade on the front of the tractor can come in different varieties: A straight blade ("S-Blade") which is short and has no lateral curve, no side wings, and can be used for fine grading. A universal blade ("U-Blade") which is tall and very curved, and has large side wings to carry more material.
The US Army then used D9 bulldozers during the Vietnam War to clear forests. Combat use of Caterpillars in Israel stretches back to the Sinai War of 1956, the Six-Day War in 1967, the Yom Kippur ...
The Caterpillar D7 is a medium track-type tractor manufactured by Caterpillar Inc. and most commonly used as a bulldozer. The D7 was first manufactured in 1938. A series of improved models were later produced, including the D7C in 1955, the D7D in 1959, the 160 hp (120 kW) D7E in 1961, the 180 hp (130 kW) D7F in 1969 and the 200 hp (150 kW) D7G ...