Tower Crane TC4808 Construction Machiney
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 set
- Supply Capability:
- 15 set/month
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Introduction:
Tower crane is used to lift, lower and horizontally move materials in construction and other industry. It has large lifting capacity and lifting height, wide moving range, and can rotate. It basically consists of base foundation, mast, slewing unit, working jib, counter jib, counterweight, hook, and operating cabin.
Features:
1. A universal model, suitable for various construction projects and working conditions.
2. Adopt standard section hydraulic lifting and connecting, can adjust crane height according to height of the building
without affecting the lifting capacity.
3. Use three-speed motor and mono-speed ratio decelerator, trolleying mechanism can provide two operation speeds: low speed for heavy and high speed for light load. Steady operation, stable braking and less shock when shifting.
4. With complete set of safety devices, with lifting height limiter, dolly range-change limiter, moment limiter, weight
limiter, circumgyrating limiter and so on.
5. Scientific layout, beautiful appearance design. The operator's room is set independently on one side, with good vision field.
Specifications:
- Q: Hello, i am goin in on Dec 5 to write the millwright C of Q for the 3rd time. On the test there was a question that went something like this The crane is rated 40Ton, with a boom lenght of 40ft and at an angle of 70 deg. The jib is 8ft long on a 10 deg angle. What is the sefe working load. The numbers are not correct but that is how the question is phrased. Please help me with the formula. I cannot find it anywhere.
- Normally you would get a chart for that crane and you look up the SWL at the extension and angle you would want to use, but you can calculate this too. Basic formula; mass*distance = newmass*newdistance, in the case you have described you have to take into account that the distance is not the load arm as it is not at a right angle to the force the mass has and therefore you would have to work that out via trigonometry. Any clearer?
- Q: I'm researchign for this demonstration speech on origami and uncovered a legen that says in the Japenese custom if you fold 1000paper cranes you are granted a wish. Just wondering, has anyoen ever tried this? and the outcome?I'm goign to do it this weekend!
- my daughter's art club did this for a hospital not to long ago...they made 1300 paper cranes and hung them from the ceiling in one of the hospital wings. I don't know about being granted one wish, but it made the patients happy and smile no matter how sick they were. I've heard the paper crane was some how connected with leukemia, so she made one for a friend of mine's son (he is only 7 and has battled this disease for 2 years) and it made him happy to know that someone who doesn't know him would make something like that for him.
- Q: who invented cranes?
- Lost in the mists of time. We know that the Babylonians and Egyptians used simple cranes a few thousand years BC.
- Q: It's better if the explanation is not complicated.TQ
- Hello, 1. Modularity: You can build ships (larger ships) in modular sections and have the crane lift these modular sections and put them into place for final assembly. This is one major advantage that was not available back in the day
- Q: What should i do to solve tower crane collapse?
- i couldn't figure it out either. try the castle catapult instead.
- Q: as the crane cabin temprature is very high which is not good for equipment pls advise which air condition is good for colling
- I would use a roof mounted unit. They are commonly used in campers. 10,000 btu should be ample.
- Q: any1??
- forces for cranes are dynamic , so u'll have repeated cycles of compression tension ( i assume it's a trussed crane). but generaly for a cantilever , the main forces are -ve Bending Moment +ve shear which changes the rft. bars position if dealing with R.Concrete for example
- Q: Trying to find an estimated weight for a mobiles crane with a 5 tonne capacity ?
- It is not the weight of the crane alone that matters. But to some extend if the crane is light, this could create a torque when carrying a heavy load and the crane could collapse. Therefore I am speculating that inorder to lift 5Tonnes, the crane must be more than 5 tonnes to balance out the moments resulting in a torque The internal structure of bolts and trusses must be able to handle heavy loads and their are several calculations done to find each forces acting on the members of a truss. For eg: By using Pin Joint Analysis
- Q: i need a summary for the story cranes by hwang sunwon?
- Cranes, by Hwang Sunwon, depicts two friends and their contrasting political views. Fond memories of their past adventures cool the hatred between them. It is almost mind-boggling to think that one day we would face our friends and have to murder them because of our differing ideology.
- Q: how do you say paper crane in japanese?
- Japanese Word For Crane
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Tower Crane TC4808 Construction Machiney
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 set
- Supply Capability:
- 15 set/month
OKorder Service Pledge
OKorder Financial Service
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