Surely everyone has seen machines like bulldozers. More precisely, these are heavy tractors designed to perform complex work. Since ancient times, this word was used to describe any device or installation capable of moving heavy objects. The equipment first appeared in 1923, it looked like a huge unit and it made a lot of noise, one might even say unbearably. Today, not a single city or household can live without them. Tractors work on farms, in quarries, construction sites and many other places. Our task today is to learn about the largest bulldozers in the world and get to know each one better. The rating of bulldozers is opening.
ACCO Dozer
Weight - 183 tons
This is the largest bulldozer in the world today, assembled by an Italian company that has not existed for a long time. Unfortunately, he did not become serial and is a loner. Moreover, the customer company never used it. According to reliable information, this huge tractor is standing and waiting to be taken to Libya. It weighs 183 tons; for such a monster to start, it required 1350 horsepower. The heaviest bulldozer in length , with a three-meter ripper at the back.
- Length: 12 m.
- Width: 7 m.
- Height: 3 m.
- Power: 1350 hp
- Weight: 183 t.
Types
More often, bulldozers are assembled on a tracked chassis. Less common are wheeled analogues, which are used for auxiliary and cleaning work.
Typically, tire-mounted devices replace motor graders. This is due to greater traction capacity and stability.
Special equipment is also classified according to the type of blade installed. It is possible to equip with several working bodies:
- Straight. This is a knife curved in a vertical plane. Individual structures can be rotated in three directions and are installed on light vehicles. Heavy ones are aggregated with fixed knives equipped with side shields. The straight blade is considered universal - it can be used in all jobs, but it has lower productivity.
- Spherical. This blade has an enlarged drawing prism, which allows it to move more bulk material in one pass. It is made of 3 sections: one central and two side, welded at an angle of up to 25 °. The design ensures minimal material loss. A spherical blade is used to move bulk materials over relatively long distances.
- Hemispherical. This is a universal blade that has the structural features of the described working tools.
To increase productivity, dumps are equipped with slopes, extensions, and other mechanisms. Modified designs are used in coal or peat deposits or when moving municipal solid waste to treatment sites.
Komatsu D575A-3SD
Weight - 153 tons
If we consider the mass production of these tractors, then the largest bulldozer in the world is Komatsu D575A-3SD. The giant was assembled in Japan, and was first shown at an exhibition in 1981, even then it amazed everyone without exception with its size. Its height reaches 5 meters; imagine how small an ordinary person seems next to a tractor. The movement is driven by a power plant with a capacity of one thousand horses, so that the fuel does not run out at the right time, the car is backed up by a tank of 2 thousand liters. With such dimensions, he is allowed to work only in quarries, together with Belaz.
- Length: 12.7 m.
- Width: 3.3 m.
- Height: 5 m.
- Power: 1000 hp
- Weight: 153 t.
- Tank: 2100 l.
- Speed: 11.6 km/h
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Caterpillar D11T CD
Weight – 112.7 tons
A very popular heaviest bulldozer in the USA, which is in demand all over the world. First of all, the tractor gained such fame thanks to its powerful characteristics and high speed. But most of all, the unit is valued for its high performance and efficiency with which it is capable of working. One of the advantages is the economical motor, which further reduces the amount of harmful substances emitted into the atmosphere. Therefore, drivers feel comfortable and know for sure that they are working in a tractor, which was included in the top 10 most powerful bulldozers in the world 2021 .
- Length: 9.26 m.
- Width: 3.8 m.
- Height: 4.6 m.
- Power: 949 hp
- Weight: 112.7 t.
- Tank: 1600 l.
- Speed: 11.8 km/h
Bulldozer-loosening equipment
The front part of the machine is equipped with a hemispherical fixed blade with hydraulic tilt and an adjustable cutting angle. The width reaches 6 m, and the height is 2.6 m. The maximum possible volume of transported soil is 26.2 m3. The bucket can be immersed in the ground by 0.8 m. The skew angle of the blade is 8º.
A single-shank ripper is located at the rear of the tractor. The angle of inclination can be adjusted for different tasks. The smallest value is 37º, and the largest is 62º. The maximum immersion into the ground stops at 0.8 m.
Komatsu D475A-5SD
Weight – 108 tons
If our rating is for 10 tractors, then now you will see the second largest Komatsu bulldozer at the moment. A huge number of experts claim that this is the best earthmoving machine with improved suspension and reliable protection. In the extreme conditions under which bulldozers sometimes have to work, the Komatsu D475A-5SD could withstand much longer. Its dump volume reached 34.4 cubic meters. In addition, this is one of the fastest tractors in its class, as it accelerates to 14 km/h.
- Length: 10.5 m.
- Width: 2.77 m.
- Height: 4.59 m.
- Power: 912 hp
- Weight: 108 t.
- Tank: 1670 l.
- Speed: 14 km/h
History of bulldozers
At the end of the twenties of the last century, a bulldozer began to be understood as large-sized equipment for digging pits. This is how it came into use - meaning a self-propelled earth-moving machine equipped with a blade. This type of equipment is used at construction sites, in the repair and construction of roads, and in quarrying. In general, where it is necessary to move large layers of earth or other material.
Who is behind the invention of the dump is still not known for certain. Some give the title of creator to the LaPlant-Choate Manufacturing Company from North Dakota, USA, others to the inventor Robert Gilmore Le Thorneau.
The first blade was controlled manually and it was necessary to set its angle of inclination each time. Almost immediately, from the late 20s to the early 30s of the twentieth century, Caterpillar began to make attempts to use a hydraulic blade control system. And when she succeeded in 1935, the development of this type of machine began to occur much faster.
ChTZ T-800
Weight – 103 tons
In fifth place is the largest bulldozer in Russia , created during the Soviet era. The first copies of such giants rolled off the assembly line in 1983; over the entire period, 10 units of equipment were made to work on construction sites and in the mining industry. Such a unit can easily work under the extreme conditions of the Far North, which is why the ChTZ T-800 was created. Currently, they can offer another tractor at any moment, because they will not write off the giant.
- Length: 12.4 m.
- Width: 4.1 m.
- Height: 4.25 m.
- Power: 820 hp
- Weight: 103 t.
- Tank: 1670 l.
- Speed: 10.6 km/h
Industrial tractor T-50.01
Weight – 93.5 tons
In 1980, the second largest bulldozer in Russia, called Promtractor T-50.01, went into production. Even the technologies of engineers of that time were able to make it one of the most productive tractors, which is still working today in quarries, oil and gas points and construction sites. It is interesting that the Cheboksary plant did not abandon the technology; they continue to modernize it to make it even better. It is possible that in terms of strength this is one of the leaders, included in the top 10 most powerful bulldozers in the world . Because it is capable of going 1 meter deep into the ground.
- Length: 10 m.
- Width: 5.4 m.
- Height: 4 m.
- Power: 750 hp
- Weight: 93.5 t.
- Tank: 1320 l.
- Speed: 8 km/h
Fiat-Allis FD50
Weight – 80 tons
Another largest bulldozer in the world , which was produced in the USA, but with the help of specialists called from Italy. Work began on it in 1974, after which the car was repeatedly improved and modified. At the moment, production has been discontinued; unfortunately, the company closed, and they released their final giant in 1989. By the way, at that time it held the record as the most powerful bulldozer in the world with a blade blade.
- Power: 600 hp
- Weight: 80 t.
- Tank: 1200 l.
- Speed: 7 km/h
Where are bulldozers used?
Bulldozers perform various earthmoving jobs. This type of equipment is especially in demand in road construction, construction sites, and the mining industry. Bulldozers move soil, rock, bulk material, and snow.
In the mining and extractive industries, bulldozers-rippers are used for stripping operations and moving large volumes of rock. Especially where drilling and blasting operations cannot be carried out. It is in the mining industry that you can find truly huge machines, such as mining dump trucks the size of a house, the world's largest excavator or giant bulldozers.
Komatsu D375A-6
Weight – 71.6 tons
A reliable workhorse with great performance and even an automatic transmission with torque converter lock-up. Thanks to this new installation, the tractor has received more power and speed. The third largest Komatsu bulldozer to date included in the official ranking. Its distinctive feature is its speed, because it can go backwards at 15.8 km/h; few people are able to repeat such a record with the same weight.
- Length: 10.4 m.
- Width: 3 m.
- Height : 4.28 m.
- Power: 650 hp
- Weight: 71.6 t.
- Tank: 1200 l.
- Speed: 11.8 km/h
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Caterpillar D10T
Weight – 67 tons
Among modern ones, it is among the best, as the largest bulldozer in the world 2022 and durable. The brand speaks for itself, it is very popular and famous. The main places for the operation of such equipment were quarries, construction and roads. In general, manufacturers did not use any restrictions. The Caterpillar D10T isn't just efficient, it's reliable, safe for the operator, and easy to maintain. Today, the approximate cost of the latest configuration can reach 28 million rubles. It is worth mentioning the speed of the bulldozer; the rear speed at maximum reaches 15.8 km/h, which is quite a lot.
- Length: 7.5 m.
- Width: 3.74 m.
- Height: 4.07 m.
- Power: 580 hp
- Weight: 67 t.
- Tank: 1204 l.
- Speed: 12.7 km/h
Device
All details of the device are fully adjusted to the areas of transport activity. Each of them has high reliability, ensuring long service life, according to the creators. All tractor control is carried out from the cab. We will tell you about it now.
Cabin
The main material in the manufacture of the cabin was metal. Inside, it is lined with special materials that have the ability to retain heat and absorb sound. The double cabin turned out to be very comfortable and spacious (3.5 m3). Comfort is added by shock absorbers located between the cabin and the main part, and double glazing. For additional driver protection, it is possible to install a special fence.
Control
There are 2 levers on the control panel that are responsible for turning the machine. Turned on using a pedal. The braking system allows you to stop the car while the engine is still active. If some kind of breakdown suddenly occurs and the engine fails, the automatic system will work and emergency braking will occur.
CHETRA T40
Weight – 64.8 tons
A tractor launched into production in the Russian Federation, which is called the largest mass-produced bulldozer in Russia today. The rest, as you already know, are the development of the USSR. This equipment was created for work in the gold and coal mining industries, therefore it is one of the most powerful.
- Length: 6 m.
- Width: 3.29 m.
- Height: 4.31 m.
- Power: 590 hp
- Weight: 64.8 t.
- Tank: 1200 l.
- Speed: 12.7 km/h
