The mining sector mostly employs the Caterpillar D11T, a sizable bulldozer produced by Caterpillar Inc. in East Peoria, Illinois. Although it was made primarily as a bulldozer, it may also be used to push-load scʀᴀᴘᴇrs and remove rock overburden.
Bulldozers have captivated young males all across the world since they were children. With a Tonka truck in the backyard, it begins and develops into adulthood. When we observe one in its natural setting, engaged in the task that makes it magnificent, we all pause and turn to stare. And it would be difficult to find a ᴍᴀɴ in the world who wouldn’t jump in the driver’s seat and give one a spin if given the chance.
The Caterpillar D-series bulldozers, of which the enormous D11T is the king, are arguably the most well-known in America. The D11T, a track-type tractor, features a 32.1L V-12 C32 Acert engine with 850 horsepower and a top speed of 8.7 mph in reverse (7.3 mph forward). However, given that the D11T weighs around 230,000 pounds and can move 45 yards of earth in normal trim, speed isn’t really a problem. If you have the Carrydozer (CD) version, those figures increase to just about 250,000 pounds, and its larger blade can move ᴄʟᴏsᴇ to 58 yards.
The D11C32 T’s Acert engine uses a cooled exhaust gas recirculation system (EGR) and a diesel oxidation catalyst to comply with U.S. EPA Tier 4 Final emissions criteria for off-highway equipment (DOC). The most recent Cat MEUI-C high-pressure common-rail injection system supplies the fuel, while a single fixed-geometry turbocharger with air-to-air aftercooling controls the airflow. To maximize perforᴍᴀɴce per gallon of fuel used, an ADEM A4 electronic engine control module controls airflow and fuel supply.
By dampening impact loads and vibrations, a torque divider serves as the hydrodynamic component between the engine and transmission, lowering the likelihood of ᴅᴀᴍᴀɢᴇ to the powertrain. The Cat Planetary Powershift transmission uses water-to-oil fluid cooling and large-diameter, high-capacity clutches with three forward and reverses gear speeds.
Let’s see Cat D11 Dozer in Action in the ᴀᴡᴇsome video below.
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Video resource: Hastings Deering