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The design of the electric sockets allows simple and quick connectionon all sites.
Whilst operating or transporting, the cables are integrated and/or stored easily in the crane, increasing the service life of the electrical equipment and providing optimal conditions of safety.
•  There is a special channel for electric wiring in the counter-jib.

Considered to be the parent range to tower cranes,
MD cranes have been around since the beginnings of the Potain brand. This range is the pillar of all Potain product know-how.
Constantly evolving to meet market expectations, these cranes are equipped with the latest technological innovations and boast the best performance possible.

Technical characteristics
•  Jib lengths of between 30 m and 80 m, per 5 m section.
•  Max. load of 10 to 40 t.
•  Hoisting power ranging from between 50 and 150 horsepower.
•  The masts used are K400 (1.6 m), K600 (2 m), K800 (2.45 m) and K850 (2.45 m, reinforced).

All the components of the MD range are designed to minimize the total number of trucksrequired to transport them between sites.

The jib components can house the jib tiesto make transport easier and quicker.

Thanks to the factory-performed pre-reeving and the auxiliary winch supplied as standard, assembly of the jib and counter-jib ties can be carried out quickly and in total safety.

The mechanisms are always used at full power. When hoisting, the speed is optimized according to the load and command used. In distribution, progressive variation of speedand the maximum speed are adapted to the weight of the load. In orientation, there is controlled proportionalspeed with optimal acceleration and deceleration in accordance
with the maximum admissible torque for the mast.
The auxiliary winch can be used on the derrick: this provides users with the possibility of a motorized derrick at the base of the machine.

DVF Distribution
The jib-footDVF mechanism is easily accessible in total safety.
Progressive speed variation by proportional control.
The speed depends directly on the controls manipulated by the crane operator.
To make driving the crane easier, 2 hard spots integrated into the controlsprovide better pinpointing of the speed.

With different mechanisms (33 to 150 LVF Optima or 108 to 215 hp LBR), MD cranes are capable of high working speeds through optimizing speed in accordance with the load hoisted, allowing for gains in productivity.
•  For the first increments (approach speed, sling tension, etc.) hoisting of the load is controlled by the load security
device (a proving ring).
•  For working speeds, the Optima system adapts the speed in accordance with the load hoisted. This enables full power of the motor to always be used for optimum productivity.
The LVF Optima provides a gain of around 25% in descending speed.

RVF + orientation
The RVF Optima + orientation enables gentle rotating movements without jerking.
Fully integrated progressive control.
Driving adapts to the behavior of the crane operator:
•  Traditional driving thanks to action controlled by stoppage of the command. The slow-down phase of the jib is managed by the frequency variator in this case.
•  Or by an inverted command in the slow-down phase, called a «counter-orientation» command.
As a result, the crane operator can control stoppage.


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Q:when a skyscraper is done being built, how does the crane come down?
In pieces, section by section, and then the base is taken out by Helicopter. Or at least that is how I would do it.
Q:What is the giant crane for in downtown Pittsburgh?
Get ready for the new tower.
Q:How do people transport cranes?
it depends on the crane over the road mobile cranes drive them selfs to the job site and they have a dolly for the conter weights and then on the larger ones a semi brings in the conter weights. Then on a latise boom crawler crane it depends on the size of the crane if its a small one say a 150 ton crane the body and tracks can usally be moved together on a semi and the lattice boom will come on a seperate truck and is usally assembled with a all terrain fork lift. Then say on a larger crawler crane like a 500 tonner the body and tracks and carrige all come in seperate peices and are ussally put togther with a RT crane(more on the latter) and these cranes are held together with massive pins i saw a crew build a 400 ton manitowac crane with 150 feet of stick in less then a day. Now if they have to add more stick like say 200 feet of main stick and 150 feet of luffing jib they will build it all on the ground and then another crane will help lift the stick up Then there are RT cranes or rough terrain cranes they are moved on a semi to and from the job site and usally require no assebley thats all i know about i cant say how a tower crane is build iv never see one build hope this helps
Q:What kind of bodies are tower cranes made of?
First, the working mechanism of tower cranesThe working mechanism of tower crane is usually composed of lifting mechanism, luffing mechanism, slewing mechanism, hydraulic jacking mechanism and running mechanism.The hoisting mechanism to realize heavy vertical up and down movement; luffing mechanism and slewing mechanism to achieve weight moving in two horizontal directions; hydraulic lifting mechanism of standard section, increase or decrease, so as to increase or decrease the tower; range of weights can achieve walking mechanism in tower crane and force of arbitrary space motion.
Q:The mobile crane has a weight of 116kip and center of gravity at G1; the boom has a weight of 29kip and center?
The key here is to simplify this as much as possible The equation is really: mass 1 x length 1 + mass 2 x length 2 = mass 3 x length 3 G1 * 6 ft = (G2 * X ft) + H3 * X ft) G1 = 116 kip G2 = 29 kip H3 = 38 kip Now it is an equilibrium of torque about the point where the boom pivots: 116 kip * 6 ft = 29 kip * Xft + 38 kip * Xft solve for X feet: X feet = 10.388 ft So the crane is in equilibrium when the load is length1 + length 2 times the mass = mass of motor * length 3 (10.388 ft * 29 kip) + (10.388 ft * 38 kip) = 116 kip * 6 ft The boom forms a triangle with the hypotenuse equals 12ft + 15 ft = 27 ft. The bottom of the triangle is 10.388 ft + 10.388 ft = 20.776ft So we have two sides of the triangle and now just need to find the angle where the triangle forms with those two sides: cosine of angle = adjacent side / hypotenuse cosine of angle = 20.766 / 27 = 0.7691 and the arc cosine of that = 39.7 degrees So rounding it off, angle of crane = 40 degree
Q:can u have a small dog w/u when u are operating a crane?
I can't imagine any employer allowing that condition to exist. A crane operator's attention must be on the job at all times. If the dog were to do something unexpected at a critical time, the operator may be distracted and lose control of the load.
Q:The arm of a crane at a construction site is 17.0 m long, and it makes an angle of 13.5◦ with the horizantal.?
The easy answer is that the applied torque is the cross product of the radial arm and the force, or in this case T = 811*17*cos(13.5). The hard (it's actually not that hard) answer will depend on the design and material properties of the crane. Since the problem asks for max torque, I'd find the bending stress due to the moment found above (T = 811*17*cos(13.5)) where bending stress = Ty/I. Next, compare this to the yield stress of the crane's material and an appropriate failure criterion.
Q:Would David have made a better babysitter than a crane driver?
none of the crane accidents were fatal, a black lad was slightly injured though
Q:What is the difference between crawler crane and tower crane?
There are many differencesThe crawler is used to transport items in a smaller range of motion (site)A tower, used for construction, stationary, or maneuvering along a railroad track.Crawler can easily reach the magnitude of 50 tons or moreMore than ten tons of tower are relatively commonTrack internal combustion engine, hydraulicTower type general power consumptionWait, wait......
Q:Paper crane level on we love katamari damacy?
Lol I know what you're coming from. You don't exactly have to get 1000 cranes. Try to roll up as many cranes as you can get (tiny cranes count as well). From the start, don't just roll up cranes. You want to grow your katamari so you would be able to roll around more stuff. If there are small things that ARE NOT cranes and is your katamari size, roll them up. That will make your katamari bigger and allow you to roll up more bigger sized cranes. Since most cranes are bigger than the katamari that you start the level with, roll up random things to make your katamari bigger. The bigger your katamari is, the easier it is to roll up many cranes. I managed to roll up about 600 cranes on my first try (after replaying the game on a new file). Did you unlock the clouds and save the pandas yet? If you did, yo don't have to complete the paper cranes to access those levels. You just need to complete the paper cranes, the clouds and the pandas to unlock more levels.

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