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Cranes

USA-Dealer A division of Flexus Enterprises Corporation, Inc.

Los Angeles, CA 90011
1 (800) 765-5977 & (949) 888-8888

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Home > Heavy Equipment > Cranes
 

Cranes

Cranes | Gruas

A crane, can also be known as a bridge crane, overhead crane is a type of machine used for lifting, generally equipped with a hoist (device) (also called a wire rope drum), wire ropes or chains and sheaves, that can be used both to lift and lower materials and to move them horizontally. It uses one or more simple machines like a hoist to create mechanical advantage and thus move loads beyond the normal capability of a human. Cranes are commonly employed in the transport industry for the loading and unloading of freight, in the construction industry for the movement of materials and in the manufacturing industry for the assembling of heavy equipment.
 
The first construction cranes were invented by the Ancient Greeks and were powered by men or beasts of burden, such as donkeys. These cranes were used for the construction of tall buildings. Larger cranes were later developed, employing the use of human treadwheels, permitting the lifting of heavier weights. In the High Middle Ages, harbour cranes were introduced to load and unload ships and assist with their construction – some were built into stone towers for extra strength and stability. The earliest cranes were constructed from wood, but cast iron and steel took over with the coming of the Industrial Revolution.
 
For many centuries, power was supplied by the physical exertion of men or animals, although hoists in watermills and windmills could be driven by the harnessed natural power. The first 'mechanical' power was provided by steam engines, the earliest steam crane being introduced in the 18th or 19th century, with many remaining in use well into the late 20th century. Modern cranes usually use internal combustion engines or electric motors and hydraulic systems to provide a much greater lifting capability than was previously possible, although manual cranes are still utilised where the provision of power would be uneconomic.
 
Cranes exist in an enormous variety of forms – each tailored to a specific use.Sometimes Sizes range from the smallest jib cranes, used inside workshops, to the tallest tower cranes, used for constructing high buildings. For a while, mini - cranes are also used for constructing high buildings, in order to facilitate constructions by reaching tight spaces. Finally, we can find larger floating cranes, generally used to build oil rigs and salvage sunken ships.
 
 Products (Total Items: 44)
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D3R Hook Ball
D3R Hook Ball
Average Rating 0 Review(s)
Your Price: $250.00
Hook Ball
Hook Ball
Average Rating 0 Review(s)
Your Price: $250.00
Hook Ball
Hook Ball
Average Rating 0 Review(s)
Your Price: $500.00
CRANE BLOCK
CRANE BLOCK
Average Rating 0 Review(s)
Your Price: $1,950.00
BLOCK HOOK
BLOCK HOOK
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Your Price: $550.00
HOOK
HOOK
Average Rating 0 Review(s)
Your Price: $150.00
HOOK BALL
HOOK BALL
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Your Price: $350.00
HOOK
HOOK
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Your Price: $150.00
HOOK
HOOK
Average Rating 0 Review(s)
Your Price: $350.00
HOOK BALL
HOOK BALL
Average Rating 0 Review(s)
Your Price: $650.00
HOOK BALL
HOOK BALL
Average Rating 0 Review(s)
Your Price: $550.00
HOOK BALL
HOOK BALL
Average Rating 0 Review(s)
Your Price: $350.00
BLOCK HOOK
BLOCK HOOK
Average Rating 0 Review(s)
Your Price: $350.00
BLOCK HOOK
BLOCK HOOK
Average Rating 0 Review(s)
Your Price: $350.00
BLOCK HOOK
BLOCK HOOK
Average Rating 0 Review(s)
Your Price: $1,250.00
BLOCK HOOK
BLOCK HOOK
Average Rating 0 Review(s)
Your Price: $350.00
BLOCK HOOK
BLOCK HOOK
Average Rating 0 Review(s)
Your Price: $250.00
HOOK BALL
HOOK BALL
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Your Price: $250.00
HOOK BALL
HOOK BALL
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Your Price: $250.00
BLOCK HOOK
BLOCK HOOK
Average Rating 0 Review(s)
Your Price: $350.00
BLOCK HOOK
BLOCK HOOK
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Your Price: $950.00
HOOK
HOOK
Average Rating 0 Review(s)
Your Price: $950.00
HOOK
HOOK
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Your Price: $950.00
BLOCK HOOK
BLOCK HOOK
Average Rating 0 Review(s)
Your Price: $750.00
 
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2012 Miller Big Blue 400D Welder/Generator 2012 Miller Big Blue 400D Welder/Generator
$9,950.00
2014 Multiquip DCA70SSJU4I Generator
$19,950.00
2012 Ford F450 Cab and Chassis
$25,750.00

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USA Dealer
1049 E 32nd St Central Los Angeles, CA 90011 US
Phone: 3232323300 Website: usa-dealer.net