The largest truck crane in the world August 23rd, 2013
Among the huge number of different construction equipment, and in particular among cranes, it is automobile cranes that are often the most the best choice. They are mobile, easy to transport, quick to assemble, have a wide range of load capacity options.
Their disadvantages usually include a relatively low load capacity and a low boom height, which is often not enough for the construction of massive tall structures. But German designers are ready to argue with this, having built the largest automobile crane on the planet.
And so I present to you the giant of technology Liebherr LTM 11200-9.1.
Today, the largest crane in the world is the Liebherr "LTM 11200-9.1" crane - MAMONT. This is a self-propelled jib crane, which is produced by the German company Liebherr. This crane is self-propelled and has a telescopic boom, which is mounted on a special chassis. In addition, this crane jib is also the tallest jib in the world.
Just think: he is able to lift a load weighing 1200 tons to a height of 180 meters. These are 7 passenger airliners raised at a time to the height of the 60th floor!!! The height of the Mammoth is 2 times higher than the statue of liberty.
The time to prepare the crane for operation is about 8 hours. Parts and components are brought in escorted by a convoy on 20 heavyweights. The weight distribution goes to 4 hydraulic supports (outriggers), 300 tons each. Under each leg of the outrigger, a special platform of steel beams is arranged to distribute the load on the soil.
On the basis of a crane weighing 22 tons, there are counterweight plates with a total weight of 202 tons. Control over the load distribution, stress in the supports is carried out from the crane operator's cab in automatic mode. The work process is constantly monitored by several operators who have direct contact with the crane operator, which minimizes the possibility of error.
The Liebherr LTM 11200-9.1 is 30 times more powerful than a conventional mobile crane. Parts for the assembly of the "Mammoth" are delivered to the site of the planned work on twenty trucks, accompanied by a convoy. The weight of the load and the weight of the crane itself are distributed over 4 hydraulic legs - 200 tons each. Iron supports are placed under each paw to distribute pressure.
In April 2011, an unfortunate incident occurred with an LTM 11200-9.1 crane. During the installation of one of the wind turbines in Germany, a crane boom collapsed due to a sharp gust of wind. The crane itself remained on the move. Fortunately no one was hurt.
However, not only the Mammoth itself deserves attention. The crane hook is no less surprising. The LTM 11200-9.1 has a hook length of almost 10 meters and weighs 111 tons.
During operation, the LTM 11200-9.1 crane does not use a counterweight. This device, which consists of 18 plates weighing 10 tons each, is used only when some kind of cargo needs to be delivered to a fairly high altitude. This crane does not have a counterweight due to the very robust design of the slewing ring.
Mammoth is controlled from a special control cabin, which can be adjusted in height. In the control cabin, everything is on electronics, so there are no difficulties when working with this colossus.
In order to deliver the LTM 11200-9.1 to the next job site, 20 trucks are required. During transportation, the crane boom is transported separately from the chassis. The boom is designed in such a way that it does not require any additional equipment. This is due to the presence of 4 hydraulic cylinders, which allow you to assemble the structure without much hassle. True, the installation of the LTM 11200-9.1 crane takes 8 hours. And the "Mammoth" is being transported, accompanied by a convoy of policemen.
With and without flaws - not produced in Russia
Cranes with a lifting capacity of 600 tons are powerful machines, but there are currently cranes in the world whose lifting capacity reaches several thousand tons, the most powerful supercrane has a lifting capacity close to 7 thousand tons.
Most supercranes fall into two categories: fixed with a large slewing ring base and mobile crawler cranes. Both types of cranes have their advantages and disadvantages.
Rotary, in which the boom structure, together with the counterweight, rotates along a rounded rail track, are stationary, but they have high altitude cargo lifting and departure. The disadvantages of such cranes include the fact that they cannot move with a load, and their installation requires a prepared soil base and even a foundation.
Crawler cranes are easy to move both on the site and from one site to another and can move with a load.
Outrigger cranes such as those made by VersaCrane have the advantage that the bearing capacity of the subgrade can be lower than for other non-outrigger supercranes, making them easier to set up on the job site.
Transportation
Transportation of supercranes is one of the important problems that manufacturers solve already at the design and development stage. Thus, Mammoet designed PTC cranes for delivery in containers on ships, these containers then become a ballast box for the crane. The user is instructed to fill the box with local gravity materials - sand and gravel to obtain the design counterweight.
Lampson breaks down its crane structures to fit on 100 trucks, and the boom sections are not welded but assembled on pins.
Parts of the Bigge Super Crane are placed on 160 trucks.
Purpose
Supercranes are used for the installation of large-block, heavy equipment at nuclear power, petrochemical, metallurgy and other construction sectors. In recent years, heavy-duty cranes have been actively used for the installation of wind power equipment.
Of the 13 largest cranes on the list (see table) - 9 cranes have been introduced to the market for the first time in the last six years, in this short period the maximum lifting capacity of cranes has grown from 2 thousand tons to more than 6.8 thousand tons.
Even 10 years ago, the TC-36000/1 crane with a lifting capacity of 2,268 tons, developed in the USA by VersaCrane, was unique; today it ranks 9th in terms of lifting capacity. Since then, many super cranes have appeared in the category of the most popular lifting capacity of 3 thousand tons, which are mainly used in the construction of nuclear power plants. True, after the accident in Japan in 2011 at the Fukushima plant, the construction of new nuclear power plants in the world slowed down, and the demand for supercranes for these purposes decreased accordingly. But for new generation stations, such as the Westinghouse AP1000 station in the USA, such cranes will be in demand.
| Place |
Manufacturer |
Model |
Carrying capacity, t |
|---|---|---|---|
| 1 |
bigge |
125DAFRD |
6803 |
| 2 |
ALE |
AL.SK190 |
4300 |
| 3 |
Sany |
SCC36000 |
3600 |
| 4 |
mammoet |
RTS-1 40/200-DS |
3200 |
| 5 |
Sarens |
SGC-120 |
3200 |
| 6 |
Terex |
CC8800-1 TWIN |
3200 |
| 7 |
mammoet |
MSG-80 |
3072 |
| 8 |
Liebherr |
LR-13000 |
3000 |
| 9 |
Lampson |
LTL-2600 |
2359 |
| 10 |
Manitowoc |
31000 |
2300 |
| 11 |
VersaCrane |
TS-36000/1 |
2268 |
| 12 |
Liebherr |
LR-11350 |
2000 |
| 13 |
mammoet |
RT50 |
2000 |
125DAFRD
The world's largest Bigge 125D AFRD is a full swing derrick crane with an A-shaped lattice luffing boom, with a capacity of 6,803t at 91m. radius of 73 m. The distance between the center of the crane and the outer ring base is 43 m, which limits the minimum reach of the boom to 31 m.
With special equipment in the center to increase the stability of the crane, together with a reinforced concrete foundation, the crane can operate at a wind speed of 64 km/h and remain stable in hurricane winds up to 241 km/h. The power drive consists of five diesel engines with a total power of 2573 kW.
The crane is equipped with a unique automatic system balancing, allowing you to keep the lifting part in a vertical position.
AL SK190
In second place on the list is the AL SK190 crane with a lifting capacity of 4300 tons, manufactured by Abnormal Load Engineering Ltd, a British-based company. (ALE). Crane with a ring base, cable jacks with a lifting capacity of up to 600 tons are used to lift the load, the load moment of the crane is 190 thousand tons.
The speed of lifting the load with jacks is 10 m/h, while an additional high-speed winch provides lifting at 150 m/h.
Two AL SK190 cranes are working in different countries the world - in Thailand and the USA. The first one was produced in 2008, in 2011 the Mega Jack mega-jack system was installed on the second crane, capable of lifting a load weighing 50 thousand tons to a height of 25 m. Both cranes were assembled at the company's plant in Breda in the Netherlands .
130 containers are required to transport each of the cranes.
SCC36000
The SCC36000 crane with a lifting capacity of 3600 tons from the Chinese company Sany is ranked 3rd in the list. The load moment of the crane is 86 thousand tons. With a lifting height of 98 m and a radius of 45 m, the load capacity is 1700 tons.
The double boom crawler crane launched in 2011 is the first entry of Chinese crane manufacturers into the global supercrane market. The crane is manufactured at the Kushan plant in China and is valued at $40 million.
The undercarriage of the crane contains eight caterpillar tracks; two diesel engines with a capacity of 597 kW are used as a power unit. 86 trucks are enough to transport the crane.
RTS-140/200-DS
The following PTC-140/200-DS cranes from Mammoet in the Netherlands are part of a new generation of Platform Containrized Twin-Ring Crane (PTC) cranes. Two cranes with a lifting capacity of 3,200 tons were produced.
Double ring base cranes vary in diameter from 30 to 41 m. The twin boom and crane components fit into standard ship containers, which are then used as ballast boxes.
The RTS-140 crane has a load moment of 140,000 t.m, while the RTS-200 crane has a load moment of 200,000 t.m. Preparing cranes for work on a construction site takes three to six weeks.
Two RTS-140 cranes are currently operating in the USA, one RTS-200 model in Brazil.
In 2011, the Belgian Sarens Group launched the SGC-120 crane with a maximum lifting capacity of 3,200 tons at a radius of 30 m and a load moment of 120,000 tons. m or 130 m.
The crane is equipped with 12 diesel engines, traditional hydraulic winches, and the crane slews on a base of a double ring with a diameter of 43 m.
The crane is transported in 155 ship containers, which can then be used as ballast.
The crane is currently working on the construction of an Intel plant in Antel, Arizona in the USA, after which the crane will be relocated to China for the construction of an offshore oil platform weighing 15,000 tons, where modules weighing up to 1,300 tons will need to be lifted.
CC8800-1 TWIN
The Terex CC8800-1 TWIN Crawler Crane with Double Lattice Boom was built in Zweibrücken, Germany.
By the time this crane was introduced, it was the largest in the world in terms of lifting capacity of 3,200 tons. The crane is able to move around the site with a load.
With a maximum load capacity of 3200 tons, the crane can lift a load of 534 tons with a radius of 62 m and a boom length of 123 m. Its maximum load moment is 44 thousand tons.
The design of the crane largely repeats a similar crane with a single boom.
The crane is widely used in large facilities around the world, including nuclear projects, oil refineries, etc.
In 5th place is the Mammoet MSG-80 crane with a lifting capacity of 3072 tons, which was first introduced in 1996.
A faucet with a round base, in which the stroke is finished with Teflon for better glide of the faucet.
Cable jacks are used to lift loads.
With a main boom length of 93 m with a jib of 37 m, the crane can lift a load of 774 tons with a radius of 61 m.
The MSG series crane is slower to operate than the new generation of PTC cranes, but it remains in demand due to other outstanding performance.
Read more in the April issue of the magazine.
According to foreign media
BINTI translation
Photo: Construction.RU, trucktorg.ru, forums.dhsdiecast.com, vertikal.net, specialtransportreport.com
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