In the world there are several models of giant trucks used in heavy industry for career development. All of these supercars are unique in their class. Therefore, it is not surprising that each year a kind of competition is held between the producing countries: whose dump trucks are the most load-lifting, high-speed and hardy. A separate line indicates the question "in which country is the largest dump truck in the world produced." Technological progress cannot be stopped. Characteristics of cars reached fantastic heights. At the same time, production technologies continue to improve. Therefore, the largest dump truck in the world may appear unexpectedly, as has happened more than once. The parameters, characteristics and dimensions of new models are regularly calculated by competent specialists in research centers. The analytical work of engineering services is international.
Mining giants
The largest dump truck in the world, the BelAZ-75710, an unmatched mining giant, was presented at the test site on September 25, 2013. The machine is manufactured at BelAZ plants located in the city of Zhodino, not far from Minsk. The technical characteristics of the truck are impressive, it takes 450 tons of cargo on board, while its European and American counterparts lift only 380 tons. The giant weighs 810 tons, but it is capable of speeds up to 64 km / h. And although such speeds do not make sense in quarry development, the fact of such dynamics itself testifies to the unprecedented power of the car. The new car was awarded the title "The largest dump truck in the world in 2013". Over the past year, not a single career car has appeared in the world ranking that could be ahead of BelAZ-75710 in its characteristics. Therefore, the Belarusian giant can rightfully carry the title of "The largest dump truck in the world in 2014". The production of a career giant began, the first machines are already operating in the largest sections around the world.
In operating mode, the largest dump truck in the world usually moves through the territory of a mining section at a speed of 10-12 km / h. Maintenance of the machine consists in the periodic inspection of the power plant and chassis. Mechanics operate on the principle of "easier to prevent damage than to fix it later." Repair of a dump truck is possible only at specialized enterprises equipped with hoisting mechanisms, such as port cranes. And from the quarry to the place of repair, the car has to be delivered on several tractors. Manufacturing companies try to locate technical service centers in the zone of greatest accessibility to a career or a mine, in which dump trucks work. Otherwise, the issue of delivering the car to the repair site and back could result in a large amount. Therefore, there are special intermediary firms that are engaged in optimizing the location of service centers. In addition, practice shows that owners of large industrial developments in the extraction of raw materials and minerals purchase mining equipment from the same manufacturer. This allows for years to work according to an established scheme with the least losses. Maintenance of the material part is usually carried out by specialists of the manufacturer, who come to the place according to a certain schedule.
Fuel consumption - 500 liters per hour. Is it a lot or a little?
The largest dump truck in the world, respectively, has a heavy-duty power plant, which consists of two diesel generators producing a total thrust of 8500 liters. with., and feeds with energy four electric drives providing rotation of wheels. Electric motors drive the truck’s wheels when the body is fully loaded with maximum traction. And an empty car moves in a 50 percent power reset mode, for this one of the diesel generators is turned off. Diesel fuel consumption in full mode is about 500 liters per hour. As we can see, the largest dump truck consumes a huge amount of fuel. However, the cost of diesel fuel is nothing in comparison with the economic benefit, which is expressed in seven-digit numbers. And it is thanks to the career giants dump trucks.
Camcorders and other useful devices
The equipment of the BelAZ-75710 mining dump truck includes complex but effective fire extinguishing systems and viewing the "dead" zones around the car. To do this, eight constantly operating cameras are installed around the machine’s perimeter, transmitting information to monitors in the driver’s cab. In a double spacious cabin the driver-operator and the navigator are placed. In addition to the video review, the dump truck is equipped with a special device that warns of approaching high-voltage lines. The cabin has air conditioning in summer and a heater in winter. The largest dump truck in the world, BelAZ-75710, is a supercar designed to operate in difficult conditions at temperatures from minus 50 to plus 50 degrees. The resource of the machine allows you to operate it around the clock.
The largest dump truck in the world: specifications
Dimensions:
- Length - 20 m 600 cm.
- Height - 8170 mm.
- Width - 9750 mm.
Weight characteristics:
- The weight of the truck without loading is 360,000 kg.
- Carrying capacity - 450 tons.
- Gross weight - 810 tons.
Power point:
- Two diesel generators with a capacity of 4664 liters. from. each, the total energy of 8500 liters. from.
- The number of cylinders is 32, the arrangement is in-line.
- Fuel consumption - 500 liters per hour.
- The number of fuel tanks is 2 for 2800 liters.
- Drive - electric motors on each rear wheel with a capacity of 1200 kW.
Chassis:
- Tubeless tires - 59/80 R63, radial, career-type tread, resistant to damage.
Appearance story
The development and manufacture of the BelAZ-75710 dump truck was caused by the increased need for heavy-duty vehicles for the mining industry. Existing machines could no longer cope with the volume of transported raw materials. In recent years, there has been a tendency around the world to increase the output of giant trucks. Moreover, their number is not limited to any specific norms, the need for career carriers is so great. The more such machines will be produced, the better for the global economy. Taking into account the needs, market demand and its capabilities, the Belarusian company plans to enter the production of 1000 dump trucks per year. Moreover, this is only a plan for the release of cars of the latest generation. In addition to the new BelAZ-75710 car, production of previous models that are not yet outdated will continue.
The predecessor of the 75710 is BelAZ-75601, which successfully operates in hundreds of open pit mines around the world. It features the following characteristics:
- Length - 14 m 900 cm.
- Height - 7220 mm.
- Width - 9250 mm.
- The weight of the truck without loading is 250,000 kg.
- Payload - 360 tons.
- Gross weight - 610 tons.
- Engine - power 3807 l. S., 2800 kW.
- Fuel consumption - 500 liters per hour.
- Tubeless tires - 59/80 R63, radial, career-type tread, resistant to damage.
Prospects
BelAZ’s factory facilities are constantly expanding, only over the past three years several new workshops have been built with a total area of ​​more than 30 thousand square meters. 700 high-tech machines were installed, modern production methods are being introduced. Today BelAZ holds the world championship in the variety of automobiles manufactured; its model range includes about twenty modifications of mining dump trucks. Simultaneously with an increase in output, the quality of machines increases. The resource of the Belarusian giants has more than doubled, at present it is 1 million kilometers - it used to be 400 thousand.
Export
Quarry equipment, off the factory conveyor in Zhodino, is shipped worldwide. Mining enterprises in different countries willingly take Belarusian-made dump trucks: reliable, reliable and fully provided with high-quality technical service. There are practically no complaints - they can be too expensive. Therefore, the production of mining equipment is strictly controlled at all stages of production. In addition, the developers try not to complicate the design of the machine, in order to avoid damage. Each manufacturer is familiar with the proverb "where it is thin, it breaks", so everything is done thoroughly, with a multiple margin of safety.
World competitors
Other representatives of such vehicles at different times also entered the category "Largest dump trucks in the world". For example, the Japanese mining giant Komatsu 930E-3SE, which is the country's main achievement in the production of heavy equipment for the mining industry. The features of the Komatsu 930E are impressive. The machine is equipped with an 18-cylinder turbodiesel engine with a capacity of 3500 liters. from. The engine torque is unprecedentedly high, it is 1900 rpm. The length of the giant is 15.5 meters, while the car is capable of transporting 290 tons of cargo. When fully loaded, the dump truck weighs about 800 tons.
The car carries 340 liters of engine oil in the engine crankcase, and 720 liters of antifreeze are poured into the cooling system. The scheme of energy transfer to the wheels of a Japanese dump truck is common for such machines: the engine transmits rotation to an alternator that powers the electric motors.
Caterpillar
Another mining truck from the list of “The Largest Dump Trucks in the World” is an American-made Caterpillar 797 car, which, in terms of a number of parameters and technical characteristics, is radically different from its “brothers”. There are no wheeled electric drives in its design, a huge diesel engine with a working volume of 117 liters stands on the chassis, which transmits rotation through a seven-speed automatic transmission to the rear wheels. Half of the driver’s work is transferred to the computer central unit, which successfully controls several dozen parameters, aligning the performance of the main components and assemblies of the dump truck.
The "American" has a complicated braking system, which is fundamentally different from the devices of other career giants. Most supercars operating at mining opencasts have an electrodynamic principle of operation of the brakes, while the Caterpillar’s ​​principle is hydraulic, that is, in fact, a regular automobile. To increase efficiency, the area of ​​brake discs was increased to 32 square meters in total. For example: this is almost three times more than the disks of the Japanese Komatsu 930 dump truck. The pads of the American car are cooled by several oil radiators.
Liebherr T282B
The main competitor of the BelAZ-75710 is the Liebherr T282B mining truck , which is also listed on the Biggest Dump Trucks list. Supercar Liebherr T282B was called the "Eighth Wonder of the World" in 2004 at the premiere in Germany. At that time, the new car made a splash before with an unprecedented ratio of its own weight and the volume of cargo that the dump truck could transport. By this indicator, the car took the first place and occupied an honorable position until BelAZ-75710 in 2013. A world ranking titled "Biggest Dump Trucks" is regularly updated. However, machines that could get ahead of the BelAZ-75710 and Liebherr T282B have not yet been created. But, since progress does not stand still, we should expect in the near future the appearance of new masterpieces of engineering in the field of career development.
So, it has already been determined that the largest dump truck after the Belarusian giant is a German competitor. The Liebherr T282B power plant is a classic combination of mining dump truck parameters: diesel generator - converter - electric motor. A 20-cylinder diesel engine paired with an alternator is located above the front wheels, traction motors are mounted in the rear axle. Combined brakes. Each wheel is equipped with resistor energy absorbers. To help these brakes, there are two discs on the rear wheels and one on the front wheels. All disc brake drives are hydraulic.
Inaccessible BelAZ-75710
The largest dump truck in the world, the photos of which are presented on the page, is still an orange giant, who came off the assembly line in the Belarusian city of Zhodino. The engineering staff of BelAZ OJSC is currently preparing a number of improvements that will further strengthen the already high rating of the 75710 model. Thus, the largest dump truck in the world, with a carrying capacity of more than 450 tons, will become unattainable for competing manufacturers in the coming years.
The manufacture of mining equipment is associated with very high costs. Therefore, in the world there are no new large manufacturers. But in a large number there are contractors who are able to produce high-quality components and assemblies for machines operating in the mining industry. These are motor builders, super-tire companies and other specialized enterprises available for cooperation. Open-pit automotive equipment is expensive, the price of a high-end dump truck reaches five to six million dollars. However, the machine justifies the costs in the first two years, while bringing significant profits.
Giant mining trucks never stand idle, in most cases this equipment works around the clock. The management of the mining section should only prepare the driver’s staff on time, and BelAZ, Caterpiller and Komatsu will do the rest.