12/28/2023 0 Comments Caterpillar d 11 dozer pushing coal![]() ![]() This blade design was introduced by Komatsu on their D575 A-2 dozers in 1995 as the Superdozer version. The Carrydozer version has a special blade with a curvature that allowed 57 cy ( 43.6 m³) to be pushed. The finger tip controls (FTC) allowed the D11R to be steered with small fingertip clutches on the left hand side. Other improvements made to the D11R were fingertip controls and electronic clutch and brakes. Both were 770 hp (570 kW) and that would be increased to 850 hp (630 kW) later in 1997. The D11R and D11R Carrydozer were introduced in Las Vegas, Nevada, at MINExpo International in 1996. This would become known as the D11N Impact Ripper. In 1987 a hydraulically powered impact ripper was added to the D11N which raised the weight up to 225,950 lb (102,490 kg). The D11N's improvements made it over 10 percent more productive than the D10. This increased the blade capacity to 45 cu yd (34 m 3). The U blade was just under 21 feet (6.4 m) long and 7 feet (2.1 m) high. The D11N had some major improvements over the D10: it includes a bigger track and blade, and a longer track by 21 inches (0.53 m). The D11N was introduced in February 1986 to replace the D10. Primarily designed as a bulldozer, it is also used for push-loading scrapers, and ripping rock overburden. in East Peoria, Illinois, and mainly used in the mining industry. ![]() The Caterpillar D11T is a large bulldozer, manufactured by Caterpillar Inc. Instead we offer this photo to explain the principles involved.10.4 feet (3.2 m) (track) 22 feet (6.7 m) (blade)Ģ48,500 pounds (112,700 kg) (operating weight) Resilient pads or some other form of cushioning material absorbs shock loads when the blade comes in contact with the tractor to be pushed. The dozer moldboard is hinge-mounted to a special inside push beam. They are always part of a special dozer group which is made predominantly for pushing other Dozers and Self Loading Scrapers when a more tractive effort is required. U-Blades are able to Tilt when equipped with one Tilt Cylinder and Tilt and Tip when equipped with two.Ĭushion Dozers are not available as a moldboard only. They are not well suited to handling large angular objects such as blast rock. They are best suited for loose loads coal, woodchips, and overburden, which are evenly distributed across the face of the moldboard. These blades are designed to push large quantities of granular materials over long distances. Semi-U Blades are able to Tilt when equipped with one Tilt Cylinder and Tilt and Tip when equipped with two. Semi-U Blades can be built with good abrasion resistance for materials like gravel, and with puncture resistance for handling large angular pieces of rock. Straight Dozers are able to Tilt when equipped with one Tilt Cylinder and Tilt and Tip when equipped with two.īuilt much like a Straight Blade but with a deeper profile and closed ends to help keep granular materials in front for long pushes. They are not well suited to handling granular materials since these materials spill off the ends during long pushes. Straight Blades can be made very strong, abrasion-resistant, and puncture-resistant for moving large, sharp, and abrasive objects. ![]() This is a good all-purpose blade, especially when equipped with Tilt Cylinders. Ideal for making windrows, digging drainage ditches, backfilling trenches grading roads. The moldboard pivots about its center point to cast materials left or right. Angle Dozers work best handling broken and granular materials, soils, and gravel. ![]()
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