Potain Tower Crane--MC480

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Tower Crane Jib Length 65M Made in China

Model:	MC480 (Fixed )
Hook Height:	74.91m
Jib Length:	80m
Mast Section:	2.5m×2.5m×5.78m
Max. Load:	25t
Load at Jib End:	3t
Hoisting Winch:	100LVF63
Slewing Mechanism:	RVF183
Trolley Winch:	10DVF10
Nominal Power:	106KVA 400V(+10%-10%) 50HZ

Q: HSE Officers can better answer this question or a qualified Crane operator it self can explain.: each crane is so different. it depends on the rated crane load, the lifted distance from the crane and actuall load to be lifted. Each crane an envelope of angles to the horizontal, lifted load, and distance from the crane. The crane operator must insure that he is within this envelope or the crane may topple over. Also, the wind at the time of the lift must be considered. If you can picture a seesaw with loads pivoting about a fulcrum. When two people are on the seesaw, one person is the crane and the other is the load to be lifted. Only in the case of a crane, the fulcrum is at the crane itself with a large dead load counter weight behind the cab operator.

Q: what are the number meanings for paper cranes?: Hey Mary, Don't let the web site name fool you, it does discuss the deeper meaning behind paper cranes. Steeped in ancient myths and carrying resonant cultural meanings, the crane occupies a central role in the Asian imagination. Anyone who has witnessed cranes flying through the early morning mist over shimmering green rice paddies will readily understand how the mysterious beauty of the crane has captivated Asian life and art for centuries. Like the dragon, tiger, and phoenix, the crane ranks among the favorite motifs for Asian artwork because of its rich meaning and history. Read more at the web sites.

Q: A solid answer and links would be nice.Your help and/or attempts to help are appreciated: It's actually a POST WWII story: Sadako Sasaki, a Japanese girl who developed leukemia at age eleven as a result of exposure to atomic radiation when she was two years old, began folding paper cranes in observance of a Japanese belief that the gods will grant a wish to anyone who folds 1000 cranes. Although she died a year later, her friends took up the mission, and the paper crane has become a symbol of the hope for world peace. The site below tells the story far more movingly than this summary.

Q: I've always been puzzled how cranes operate.Because as buildings get taller so do cranes but i don't know how they increase the height of the cranes.Can you help answer this please?: search for others, animation and video of process more edit Some cranes actually climb the structure of the building and are taken apart when the building reaches its full height.

Q: Flocks of cranes shout'. Is it right to use the word'shout' here?: If that's what it sounds like, sure.

Q: I have this assignment to find out how a climbing crane is able to move up the building as construction continues.: They add extra stages from the bottom. A tower crane is erected from a boom assembly, first and second tower sections of different cross section, and a base in a sequence of steps in which the boom assembly is mounted on a hollow climbing section dimensioned to be received in each of the larger second tower sections and defining a cavity dimensioned to receive each of the first tower sections. One of the latter is secured on a base in upright position, and the upright section is received in the cavity of the climbing section which is then raised relative to the first section and enveloped by one of the second sections. The enveloping section is secured to the base and the raised climbing section for supporting the climbing section whereupon the first tower section may be released from the base, raised, and secured to the second tower section. The climbing section may then be raised relative to the first tower section to permit the installation of another second section, and the procedure repeated, until all second or larger tower sections are superimposed on each other, the one first section being ultimately attached to the topmost second section. When the climbing section is raised relative to the attached first section, another first section may be superimposed on the one first section and the procedure repeated until the slimmer portion of the tower is assembled from superimposed first sections. Ultimately, the boom assembly is attached to the topmost first tower section, and the climbing section may be removed or stored for further use on the wider, lower tower portion.

Q: How were Churches and really tall buildings constructed hundreds of years ago before the invention of cranes?: Cranes existed in different forms than today for a really long time. Just, they used pulley systems are were human, animal, or even water powered. They might be the single greatest part of how the Roman empire was built outside of the invention of concrete.

Q: What is W_safe, the largest weight of the load that is safe to lift regardless of the angle of the crane's arm?: (Wc)/(2b) for my problem.

Q: What are the working mechanisms and safety devices of tower cranes?: About the structure: Tower cranes are all metal structures, so far there is no wood. About institutions: tower crane working mechanisms are: winding lifting mechanism; luffing mechanism; slewing mechanism; cart moving mechanism; lifting mechanism.

Q: What is the dumbest bird in the aviary community? Is it really the Crane?: The owl is close to being the dumbest bird. An expert who told us this explained that its eyes were so big, there wasn't much room left in its skull for brain . . .

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