Tower Crane CMAX TC5013B Construction Machiney
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 set
- Supply Capability:
- 20 set/month
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Introduction:
Tower Crane is a machinery used for vertical lifting and horizontal delivering of building materials and any other heavy items during construction process. It can lift and lay down, horizontally shift, and rotate, so the working range is very large. The whole body can be fixed or movable.
Features:
1. Hoisting Mechanism
Three-gear speed modulation by electrical motor or frequency conversion, giant winch.
2. Rotation Mechanism
Speed modulation with frequency conversion, stable break, accurate position,
3. Luffing Mechanism
Speed modulation with frequency conversion, less concussion, stable operation.
4 Control System
PLC control, auto diagnosis on electric malfunction, alarm of light and sound, international top brand key components.
5. Security & Protection
In addition to usual standard security mechanism, this model adopts self-developed advanced mechanism, such as unique double tighten mechanism on luffing steel cable, anti-break mechanism on sliding vehicle, anti-drop mechanism on standard section, speedy link between rotary body, hoisting boom and balance boom.
6. Structure
Mechanical-electrical integration design, CAD supported design, optimization design, modularization design. Steel structure have outstanding intensity, firmness and anti-fatigue capability.
Specifications:
- Q:My science teacher wants to know why cranes make work easier rather than just lifting an object yourself. She refers to the formula of force x distance. So i have to compare (in a way) the work of a human lifting an object and a crane lifting an object. Grrrr.... I hate this project!
- The type of crane she is referring to ia a simple pole with a fulcrum placed between the person operating the crane, and the mass to be lifted. Imagine a weightless pole with a rope tied to one end attached to a mass of weight 224 lbs The pole is 9 feet long Let's say the human weighs 112 lbs, or half of what is to be lifted. Without a crane, it will be difficult to lift that much and swing it around. With the crane, though, let's look at the advantage when a fulcrum is placed under the pole and the person pushes down on the pole to lift the weight. First, note that gravity is in favor of the person to use their weight on the pole. Using physics, with the fulcrum place at x from the mass to be lifted, the downward force of the person is F*(9-x)=224*x or F=224*x/(9-x) now plug in some values for x and compute the force: x F 4.5 224 3.5 143 2.5 86 1.5 45 0.5 13 I started by placing the fulcrum exactly in the middle and then moving the fulcrum in increments of 1 foot closer to the weight to be lifted Notice that the more pole towards the person pressing down, the less force the person has to apply to lift the weight. Also, note that when the fulcrum is in the middle, the person must apply a downward force equal to the weight - which willl be difficult foir a person that weighs 112lbs. However, once the fulcrum is placed 2.5 ft from the weight, the person only need apply 86 lbs of downward pressure. Leverage. j
- Q:It frustrates me every time I play one of those games i never win. Is there a secret? If so then what is it?
- It depends which type of animal crane you are talking about. If it's the jumbo cranes that pick up the huge stuffed animals, they are actually set to give out a win every so many plays, however the number of the winning play varies based on the location. If you are talking about the average sized cranes, the key is to look for a stuffed animal that is light up on top and bottom heavy. This will allow you to grab ahold of the head or neck and pick the animal up. I've found the easiest cranes to win on are the ones that you pick up beanie baby sized stuffed toys. They seem to win, every time you aim the crane to pick up the head or neck. It's a great way to rack up a lot of stuffed animals. While they may not be huge prizes they are reasonable ones, and some of them are pretty cute.
- Q:How were Churches and really tall buildings constructed hundreds of years ago before the invention of cranes?
- Scaffolding, pulley systems, pure strength.
- Q:my class is supposed to start reading poems/short stories by Stephen Crane.why should i look forward to his work?
- Well, you know he lived in the late 1800s, so you probably have an idea of what his poetry will sound like. Then you read some of it, and the effect is sort of like walking into what you think is going to be a prissy hair salon and being whacked over the head with a bunch of bananas wielded by a glow-in-the-dark green monkey from Jupiter. Crane's stuff is that weird. And I mean that in a good way.
- Q:why are whooping cranes on the endangered species list?
- Over-hunting, habitat conversion and human disturbance were the main causes of the decline. Currently, the most significant known cause of death or injury to fledglings is collision with powerlines7. Birds are depredated by Golden Eagle Aquila chrysaetos, especially on migration3, and drought is deteriorating breeding habitat9. Pollution, boat traffic, wave erosion and dredging threaten the Texan wintering grounds9. Aransas NWR can only support a maximum of 150 birds through the winter, forcing remaining birds to use disturbed and suboptimal habitat - this is considered to have stabilised the growth of the wild population in recent years13. The long-term effects of genetic drift after a severe population bottleneck4 are unknown. There are currently concerns about oil spills and about river flows in Aransas National Wildlife Refuge14, and the spread of West Nile virus may pose a threat to the species15.
- Q:Ask about the lift and transportation of the jack up tower crane
- According to the requirements of the 2.0.3 specification: tower crane tower crane installation and disassembly operation should be equipped with the following: 1, hold a qualified safety assessment certificate of the project and responsible for the safety of people and machinery management personnel; 2, with construction qualification certificates for special operations of the construction hoisting machinery installation and disassembly, lifting work, special operation signal heavy drivers, riggers and other operations personnel. And an electrician.
- Q:If the crane Dawkings refers to about natural selection is not operating or existing by chance, then some questions arise:1) who or what is operating the crane?2) if its self operating, how is it programmed to do so?3) who made the crane?And about designing the designer, No one did. Otherwise the crane would be lifting the operator of the crane into the crane. I guess the crane can operate by itself, but then stopped doing so when something designed the designer. Too many philosophical conundrums for me. The belief in an unified, and self-complete, creator is far less of a complex explanation than the 'crane' concept with all its requisite philosophical flamings hog's heads.
- There are cranes, anchored to the ground which can build concepts up. However, the idea of a sky crane is how someone builds a concept from thin air. The ultra cosmic sky crane built it. That way you don't have to figure out a realistic way of building a theory.
- Q:vehicle's like car's,truck's etc.need's paper's or document's for regestration or license to used it.what if i mounted or install a crane on it,do i need some paper's or document for regestration or license for the crane?
- Yes even the top load car carrier needs to be registered with LTO.
- Q:Hello,I live in the St. Louis area of Missouri and during the summer, Crane Flies (I call them Mosquito Eaters) fly around all the time at night. I believe that it is normal for this type of bug to be nocturnal, but lately, I've seen them flying around, jumping around, and getting in the house DURING THE DAYTIME!! (AHH!!) :0 Is there any explanation for this? If so, is there anyway to reduce their population in and around my house? Thanks for reading.Ty
- Mosquito Eater... That's interesting lol. I grew up calling them candlestick bugs. In any case, crane fly populations can explode when they have plenty of resources and few predators in the larval stage. It's possible that there is a shortage in invertivores (animals which eat invertebrates, such as insects or crustaceans) that provide top-down population control in the aquatic environment from which your population came. These insects are harmless and provide food and energy to myriad other organisms in their food web. For that reason, I suggest that you just catch them and take them outside. We get huge ones around here (Western Kentucky, think 2.5-3 inches from head to tip of abdomen with a good 6 inch leg span haha), so I wouldn't suggest squishing them in the house on the wall or anything lol. If you're really bothered by them, I don't really have a non-messy solution. As a biologist, I kind of just ignore them. Also, these animals are attracted to light. Maybe turn off your porch lights, if you have any, and keep your doors closed?
- Q:What other animals are there in an Eurasian Cranes habitat?
- For example the Spreewald is representative of an ecosystem, the Eurasian Cranes live in. You find there also: Eurasian river otter (Lutra lutra), black stork (Ciconia nigra), white-tailed eagle (Haliaeetus albicilla), osprey (Pandion haliaetus), European fire-bellied toad (Bombina bombina) and several dragonfly species such as the beautiful demoiselle (Calopteryx virgo), banded demoiselle (Calopteryx splendens), several club-tailed dragonflies (Gomphus vulgatissimus, G. flavipes, Ophiogomphus cecilia) and a range of other invertebrates. www.bfn.de/0203_spreewald+M520875...
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Tower Crane CMAX TC5013B Construction Machiney
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 set
- Supply Capability:
- 20 set/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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