Tower Crane TC7021 QTZ250 New Mast Section
- Ref Price:
-
$30,000.00 - 80,000.00
/ unit
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 30 unit/month
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Specification
Detail of Tower Crane
Feature:Tower Crane Condition:New Model Number:TC7021(QTZ250) Place of Origin: China (Mainland) Brand Name: CMAX Certification: ISO,CE Warranty: 1 Year Application:Building,Construction,Industrial
Main Features of Tower Crane
1) This series of tower cranes, ranging from QTZ40 to QTZ400 has a horizontal jib frame, a jib-trolley radius-changing mechanism and a hydraulic self-raising mechanism. It is original in design, reliable in operation and satisfactory in shape. Equipped with all necessary safety devices, these cranes show a good speed-control capacity, satisfactory operating stability and high work efficiency. They can be widely used for the construction of high-rise hotels, residential buildings, high-rise industrial buildings, large-span factory buildings and tower-like buildings like tall chimneys.
2) It has high working speed, good speed-adjusting performance, steady operation and high efficiency. Three-speed motor and mono-speed ratio decelerator are applied in the lifting struction, which enables heavy load low speed and light load high speed. 3)The range-change structure drives the trolley moving on the horizontal crang jib, with good positioning performance. Planet gear decelerator is applied in the circumgyrating structure, together with moment-limiting hydraulic coupler, which can relize high load capacity, steady starting and reliable operation.
4) The crane has complete set of safety devices, which can guarantee the safe and high efficienct operation. The crane is equipped with lifting height limiter, trolley ranging limiter, moment limiter, weight limiter etc..
5)The cranehas scientific layout and handsome appearance. The drivers cab is set independently on one side, with good vision field. It creates a good working environment for the operator.
Specification of Tower Crane
Images of Tower Crane
FAQ about Tower Crane
Q: What serice you could provide? A: Providing timely delivery, standby engineers are ready to slove any of your problem Providing all-embraced warranty of products quality, worksite installation guidance Providing ample spare parts and training of operation and maintenance Engineers have more than 20 years' experience in tower crane, ready to solve any of your problems.
Q: What kind of steel used for tower crane ? A: Normally, as for the main force bearing steel structure, Q345B is adopted; as for the assistance force bearing steel structure Q235B is adopted. All of the raw material is outsourced from qualified steel factory in China.
Q: What about our tower crane warranty? A: Usually there is one-year quality warranty including main electronic parts (not including consumable parts). There are consumable spare parts together with whole machine and normally they are enough for one year.
Q: What is 3 main mechanism of the tower crane ? A: there are trolleying mechanism/ slewing mechanism/ hoisting mechanism.
Q: Can you equip with light on tower crane jib, monitor, remote control and anemometer? A: Sure. All of these could be provided with extra cost upon the clients' requirements. But according to general practice, remote control is not suggested because most of the operator feedback operation in the cabin will provide a wide working view. | |||||
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- Q: Equipment safety of tower crane
- Safe distance tower and transmission line is not up to the requirements of the tower frame door frame to design, erection principle to power erection, do not use metal materials, bamboo and other materials can be used. The distance between a bamboo pole and a power line shall not be less than 1m, and a certain degree of stability shall be taken to prevent the wind from blowing. The tower crane height and bottom bearing size ratio is large, and the center of gravity of the tower body, high torque, braking frequency, impact force, in order to increase its stability, we will analysis the main causes of the tilting of the tower crane has the following:Overloading. Different types of cranes usually adopts the lifting torque based control, when the amplitude exceeds the rated load weight increase or the corresponding weights, the overturning moment more than stable moment of it, it may cause the collapse of the tower crane.Two, inclined hanging. Slant weights will increase its overturning moment, the lifting point will produce horizontal force and vertical force on the crane, bottom supporting point will produce an additional overturning moment, and the stability coefficient is reduced, resulting in tower crane collapse.Three, the tower crane foundation is uneven, the ground endurance is insufficient, the perpendicularity error is too big, also can cause the tower crane to overturn the moment to increase, causes the tower crane stability to reduce. Therefore, we should proceed from these key factors to strictly check, check and check, and prevent major equipment personal safety accidents. State explicitly eliminated the model should resolutely prohibit the use of, in disrepair, tower crane in the identification of the repair, to limit the use of load, tower crane for the use of fixed number of years there is no uniform standards, opinions vary, different places have different provisions.
- Q: The mobile crane has a weight of 116kip and center of gravity at G1; the boom has a weight of 29kip and center of gravity at G2. Determine the smallest angle of tilt θ of the boom, without causing the crane to overturn if the suspended load is W = 38kip . Neglect the thickness of the tracks at A and B. Determine the smallest angle of tilt θ of the boom, without causing the crane to overturn.
- Smallest Crane
- Q: I don't really believe that the wish will be granted.Anyways I've really been into Origami and I remember reading in my Heroes book (slash the show) that a certain number of cranes means a wish. But before I start making all these cranes, I want to know if it's 100 or 1,000.So if you haven't gotten it in your head yet the question is:Is it 100 or 1,000 cranes to get a wish
- 1000 Cranes Wish
- Q: How do they get the cranes and counterweights down off the top of buildings when finished?
- sometimes they dont. i have heard of buildings where they left the crane body as the structure for the elevator
- Q: my 7 year old son swears that a crane jumper is a type of animal...any one heard of this??
- I googled crane jumper and came up with nothing. Not to say there isn't such a creature, that could be a regional name for it, it might be called something else.
- Q: What are the climbing claws on the tower crane?
- You mean the set section? Used to be rubber, and later found that when the top of the friction is too large, not too good, plus plus the festival, but also always remove the standard section paint, and now basically the pulley
- Q: How many meters does the tower crane installation height require expert proof?
- The installation, disassembly and jacking of tower cranes must be carried out by experts
- Q: What are the necessary safety devices on a tower crane?
- (3) amplitude limiting deviceA crane shall be equipped with a minimum amplitude limiter and a device for preventing the boom from rebounding backward. The trolley must be equipped with a trolley switch and a terminal buffer.(4) rail clamping device and walking spacing deviceTrack type tower cranes must be equipped with rail clamps. A walking limit device shall be installed at the same time.(5) anemometer;For cranes with a hinge height of more than 50m at the root of the boom, a anemometer shall be installed at the top.
- Q: Do they need another crane to get the concerete blocks to the top? And how do they move the blocks from one end of the crane to another. This has been bothering me for some time so anyone who knows the answer I would love to hear it!
- Its simple man, The company produces the concrete blocks called as hollow blocks also, they are lifted up using man power or lifts or cranes, dont know what was difficult to you in understanding that.
- Q: how do they erect those large tower cranes you see on big building projects?
- A tower crane is usually assembled by a telescopic jib (mobile) crane of greater reach (also see self-erecting crane below) and in the case of tower cranes that have risen while constructing very tall skyscrapers, a smaller crane (or derrick) will often be lifted to the roof of the completed tower to dismantle the tower crane afterwards
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Tower Crane TC7021 QTZ250 New Mast Section
- Ref Price:
-
$30,000.00 - 80,000.00
/ unit
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 30 unit/month
OKorder Service Pledge
OKorder Financial Service
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