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Used and New Cranes For Sale


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Liebherr LTM1400-7.1
10
Liebherr LTM1400-7.1
2005
Mobile Crane / Boom Truck
USA Mississippi
Altec AC38-127S
10
Altec AC38-127S
2012 - 11,958 h
Mobile Crane / Boom Truck
USA Alabama
179,608
Altec DM47TR
10
Altec DM47TR
2008
Loader Crane
USA Alabama
70,003
Altec AC38-127S
10
Altec AC38-127S
2011 - 71,217 h
Mobile Crane / Boom Truck
USA North Carolina
165,590
Terex COMMANDER 4047
10
Terex COMMANDER 4047
2006
Loader Crane
USA Alabama
46,348
Manitowoc MLC650
4
Manitowoc MLC650
2015
Crawler Crane
USA Virginia
Manitowoc 2250 II
5
Manitowoc 2250 II
2001
Crawler Crane
USA Virginia
Manitowoc 16000
3
Manitowoc 16000
2015
Crawler Crane
USA Virginia
National NBT55
10
National NBT55
2012 - 55.0 T
Mobile Crane / Boom Truck
USA Missouri
381,119
National NBT45
6
National NBT45
2011 - 45.0 T
Mobile Crane / Boom Truck
USA Missouri
302,267
Terex HC110
1
Terex HC110
2015
Crawler Crane
USA Missouri
Altec AC38-127S-WS
10
Altec AC38-127S-WS
2008 - 38.0 T
Mobile Crane / Boom Truck
USA Missouri
183,989
Altec AC38-103S
6
Altec AC38-103S
2007 - 26,859 h - 38.0 T
Mobile Crane / Boom Truck
USA Missouri
166,028
National NBT60
1
National NBT60
2018 - 60.0 T
Mobile Crane / Boom Truck
USA Missouri
Link-Belt LS-118
1
Link-Belt LS-118
1976
Crawler Crane
USA Missouri
Terex RT555-2
5
Terex RT555-2
2014
Mobile Crane / Boom Truck
USA Missouri
258,460
Altec AC38-127S
10
Altec AC38-127S
2006 - 38.0 T
Mobile Crane / Boom Truck
USA Missouri
192,750
National NBT50
1
National NBT50
50.0 T
Mobile Crane / Boom Truck
USA Missouri
424,926
National NBT45
1
National NBT45
2016 - 45.0 T
Mobile Crane / Boom Truck
USA Missouri
Link-Belt LS-338
10
Link-Belt LS-338
1978
Crawler Crane
USA Missouri
National NBT45
2
National NBT45
2017 - 45.0 T
Mobile Crane / Boom Truck
USA Missouri
Elliott 40142
1
Elliott 40142
2016 - 40.0 T
Mobile Crane / Boom Truck
USA Missouri
381,119
Terex HC110
1
Terex HC110
2015
Crawler Crane
USA Missouri
National NBT55
6
National NBT55
55.0 T
Mobile Crane / Boom Truck
USA Missouri
IMT 17/117SL
2018
Loader Crane
USA Missouri
Sany SCC8150
1
Sany SCC8150
2015
Crawler Crane
USA Missouri
Sany SRC885
10
Sany SRC885
2013 - 1,701 h - 80.0 T
Mobile Crane / Boom Truck
USA Missouri
210,273
Mantis 20010
3
Mantis 20010
2015 - 3,300 h - 100.0 T
Crawler Crane
USA Missouri
Mantis 20010
1
Mantis 20010
2014 - 3,518 h - 100.0 T
Crawler Crane
USA Missouri
Mantis 15010
7
Mantis 15010
2015 - 1,432 h - 77.0 T
Crawler Crane
USA Missouri
Grove GMK4115
9
Grove GMK4115
2016 - 115.0 T
Crawler Crane
USA Missouri
854,233
Terex COMMANDER 6060
2018
Loader Crane
USA Missouri
262,403
Terex HC80
1
Terex HC80
2018
Crawler Crane
USA Missouri
National 500C
10
National 500C
15.0 T
Mobile Crane / Boom Truck
USA Missouri
42,493
Terex CROSSOVER 8000
1
Terex CROSSOVER 8000
80.0 T
Mobile Crane / Boom Truck
USA Missouri
National 14127A
2017
Mobile Crane / Boom Truck
USA Missouri
Manitowoc 11000-1
2016
Crawler Crane
USA North Dakota
Link-Belt TCC-1100
10
Link-Belt TCC-1100
2016 - 2,050 h - 110.0 T
Crawler Crane
USA Texas
Potain IGO T85A
Self-Erecting Crane
USA Washington
Boom
7
Boom
Crane Parts
USA Washington
Boom
1
Boom
1 pallet ...
Crane Parts
USA Texas
Terex RT555
7
Terex RT555
2011
Mobile Crane / Boom Truck
USA Texas
Terex RT555
7
Terex RT555
2011
Mobile Crane / Boom Truck
USA Texas
Terex RT230
6
Terex RT230
2006
Mobile Crane / Boom Truck
USA Texas
Grove TMS800E
7
Grove TMS800E
2006
Mobile Crane / Boom Truck
USA Texas
Boom
5
Boom
Crane Parts
USA Washington
BOSCARO
5
BOSCARO
Crane Parts
USA Washington
Qty Of Blocks
5
Qty Of Blocks
serial : Not Available ...
Crane Parts
USA Washington
Boom
4
Boom
Crane Parts
USA Washington
Boom
2
Boom
Crane Parts
USA Texas

Cranes

Cranes are construction machines used for lifting and lowering material needed on any construction projects. They are commonly used in the freight industry for loading and unloading heavy items as well as in the construction industry and in manufacturing for assembly purposes. Tower cranes are a common sight in any important construction site. They're quite hard to miss -- they often rise hundreds of feet high, and can reach out just as far. The construction crew uses the tower crane to lift steel, concrete, large tools such as generators, and other building materials.


Cranes are one of the first instruments used in construction and seems to have first been used in ancient Greece. While powered by men or animals at the time, they developed over the centuries to become what it is now. Cranes had a long wooden beam called arrow and was connected to a rotating base. The wheel turned thanks to a cord wrapped around a drum. The cable attached to a pulley above the arrow, a hook that had lifted the weight.

Cranes

Cranes

During the middle Ages, cranes were used to build European cathedrals and to load and unload ships at ports. A horizontal handle was added to the arrow. This handle is called the jib. This addition has improved the deflection of the crane, adding the ability to rotate. The streets were narrow in Europe, having high jib crane with the worker sitting on top was therefore a great advantage.
In 1908, Julius Wolff Maschinenfabrik & Co. produced the first tower crane. About 10,000 units were sold. In 1949, Hans Liebherr realized that there were no cranes on the market. Liebherr was thus able to revolutionize the field of tower cranes with the conception of the TK-10.


The first mechanical crane powered by steam engine appeared in the 19th century and remained in use for many years, some are still in use to this day. Modern cranes have a combination of hydraulic and internal combustion systems that enable an increase in weight lifting.

The hydraulic system is based on a simple concept but is extremely efficient -- the transmission of forces from point to point is made through a fluid. Most hydraulic machines use some sort of incompressible fluid meaning that it is at its maximum density.

There are 2 main aspects to take into consideration when designing a crane: lifting capacity and stability.

Lifting capacity depends greatly upon the strength of the leveler, the pulley and the hydraulic system which are the main component to a crane. There are two limit switches the operator can use to make sure that he does not overload the crane: The maximum load switch and the “load moment” switch to make sure that he does not exceed the tone-meter rating of the crane while the load moves out on the jib.

There are different types of cranes each tailored to a specific use:

  • Tower cranes are the first thing we think about when talking about cranes. They do not generally have a moveable base. These are usually used in the construction of high buildings as they are the tallest cranes. They have to be assembled piece by piece. The base looks like a high ladder, and the arm is perpendicular to the base. In the case of skyscrapers, the crane is often assembled and set up inside the building itself during construction.
  • Overhead cranes: often used in factories they are used to carry heavy pieces of metal or material on a rail mounted cable.
  • A fairly simple type of crane is the mobile crane with just a telescopic arm or steel truss mounted on a movable platform. Either pulleys or levers raise the boom. Generally a hook suspends from the boom. Mobile cranes can also be truck-mounted.


From being simple machines used to carry up and down materials, cranes have become more sophisticated simplifying processes in manufacturing and construction industries. They have made it safer and easier to move large, heavy loads, reduced human effort and also enabled for better timing, thereby increasing the output.