• TOWER CRANE TC4708A System 1
  • TOWER CRANE TC4708A System 2
  • TOWER CRANE TC4708A System 3
  • TOWER CRANE TC4708A System 4
TOWER CRANE TC4708A

TOWER CRANE TC4708A

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
1 set
Supply Capability:
12 set/month

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Technology is the drive for business development and production equipment the assurance of product quality. In the large-scale concentrated production, the stability and uniformity of product quality plays an essential role. The company constantly improves processing equipment. The automatic assembly line ensured quality stability and maximally reduced adverse effect of personal factor to the product quality. As a result, the one-time qualification rate of the products is improved and the company is able to win continuous trust from customers。

1.    The lifting boom and balance boom adopt cantilever boom structure, which reduces the hoisting modular and makes it more safe, convenient and flexible to install and uninstall, and reduces the requirements for hoisting equipment and the site.
2. Multiple special mounting brackets are available, which saves the installation time and ensures safe and quality installation.
3. The lifting boom adopts cantilever boom structure and variable cross-section materials, featuring more reasonable structural stress and long service life; and it is easier to make different combination of boom length. 
4. It adopts standard sections (for models of over 12t) of piece assembly structure, split structure stock, and assembled platform, which meet the transport requirements for standard container.
5. The extra-long boom is designed with a rope-supporting trolley, and the speed of which is 1/2 of that of the luffing trolley, which can achieve the most optimum rope-supporting effect. The structure has applied for national patent.
6. The lifting mechanism adopts speed regulation by frequency control or by eddy current brake series resistance, featuring good lifting performance; The slewing system adopts frequency control by torque electric motor or by coil winding type electric motor with hydraulic coupler, featuring smooth operation and small slewing impact.
7. All kinds of safety devices are reliable and easy to adjust; both the safety monitoring control system and traditional safety system are available, the double system ensures safety operation of the tower crane; the hydraulic system adopts low/medium pressure design, featuring higher safety and reliability.

The construction hoist product  produced has achieved internationally advanced level in terms of industrial design, control and the drive performance, as well as the operation safety and comfortableness. And is also making efforts to keep improving the product, as what the construction hoist lifts is not only people and material, but also a kind of social responsibility and service concept…
The new generation SC series of construction hoists adopt modular structure, ergonomic design and advanced manufacturing technology, thus the adaptability and reliability of the product is greatly improved, e.g. the max. lifting height can reach 300 meters. The product adopts multiple patented technologies, reaches advanced level in China, and the market share in domestic market is increasing year by year. The product has also been exported to overseas countries like Russia, Turkmenstan, Vietnam, etc. winning the confidence of customers of both home and abroad

1. The cage drive system is equipped with buffering device, so the cage moves more stable.
2. The ergonomically designed cage interior improves comfortableness.
3. The unique structural design has applied for patent.
4. The typical technologies ensure the malposition difference of the guide rail.
5. The excellent parts in the industry ensures reliable quality of the machine.
6. Precise assembly and accurate drive.
7. Professional solutions for special projects.
8. The complete safety devices ensures reliable control system.
 

 

 

Tower Cranes(Top-Slewing)    

Model

Max.lifting capacity & work range

Max.work range & lifting capacity

Max.independent lifting height(m)

Torque

Lifting capacity at max.boom length

Lifting capacity(t)

Work range(m)

Work range(m)

Lifting capacity(t)

QTZ31.5

TC3508

3

11.59

35

0.8

29

TC3807

3

11.15

38

0.7

29

QTZ40

TC4208

4

11.6

42

0.8

29

TC4708

4

13.4

47

0.8

29

QTZ50

TC4610

5

11.9

46

1

36

TC5010

5

13.1

50

1

36

QTZ63

TC5013

6

13.72

50

1.3

40

TC5013A

6

13.72

50

1.3

40

TC5510

6

13.17

55

1

40

TC5510A

6

13.17

55

1

40

QTZ80

TC5512

8

12.68

55

1.2

45

QTZ100

TC6013

8

14.45

60

1.3

45

QTZ125

TC6014A

10

12.4

60

1.4

50

QTZ160

TC6020

10

15.2

60

2

52.6

QTZ250

TC7030

12

20.4

70

3

45

 

 

 

Q: Secured to a concrete floor with 12 30mm bolts
That can only be answered by analizing it. A crane as you are supposed to know has different loads and directions of impact due to the moving bridge, the trolley, and break loads. So what it can lift depend on the whole structure. Besides depends as much on the type of crane
Q: i want to go to school and learn to operate over head cranes
No. they can't chew human beings. The lengthy pointy bit on the lower back isn't a sting both. it truly is an ovipositor, designed to allow the Crane fly to position her eggs in the soil. The eggs hatch out into leather-depending Jackets, gray grubs who devour the roots of grass. once you spot starlings and different birds on a backyard poking bout into the floor, it truly is what they're searching for, effective tasty leather-depending Jackets. leather-depending Jackets make the grass of a backyard pass yellow, and die. they're pests, notwithstanding the Crane fly is purely tense even as it comes interior.
Q: I saw this documentary on ancient buildings like the pyramids and it said that we don't have a construction crane that can life the stones used to build some of these ancient structures.So I gotta wonder how much the strongest crane CAN lift....or is that just fantastical nonsense about cranes not being able to lift those blocks?
First, okorder /. This means that at 5 m the capacity is 600 tonnes. Double the radius, half the capacity. A crane located at the foot of the pyramid, will be at 115.2 m from the center. At that radius, the crane could only lift 26 tonnes, so this crane could not lift the greatest stones weighing 80 tonnes. Being the boom only 100m it could'nt even reach the center.
Q: Yea i need to write up a summary on that short story, but SERIOUSLY dont have time to read it because i have to study ever sentence to understand things lol.
The Open Boat is a short story by American author Stephen Crane (1871–1900). First published in 1897, it was based on Crane's experience of having survived a shipwreck off the coast of Florida earlier that year while traveling to Cuba to work as a newspaper correspondent.
Q: how do they take crane off top of building?
Depends on the building. Either a taller crane is brought in to lift them, or they're lifted by helicopter. And sometimes a building effectively builds itself, and the crane moves up with the construction platform after being constructed at ground level. Will still need a helicopter to remove it of course.
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?
I think the answer you're looking for is (Wc)/(2a). ...Assuming you're in my physics class!
Q: how do construction crews put up a crane?
They assemble it on a concrete foundation using a mobile crane. To grow taller, the top unit of the tower crane has a jacking mechanism that lets it raise itself up and insert another tower section.
Q: The earthing resistance of tower crane shall not be greater than that of the tower crane
The lightning resistance of tower crane (tower crane) on the construction site shall be no more than 4 ohms.I. tower crane GB/T 5031--20085.5.5.9 lightning protectionIn order to avoid lightning stroke, the main structure of the tower crane, the motor frame and all the electrical equipment metal shell, wire metal protection tube should be reliable grounding, and its grounding resistance should be no more than 4 ohms. When multiple repetitive earthing is adopted, the grounding resistance shall be no more than 10 ohms.Two. Safety regulations for tower cranes GB 5144 - 20068.1.3 tower crane metal structure, track, all electrical equipment metal shell, metal line pipe, safety lighting transformer, low voltage side should be reliable grounding, grounding resistance is not more than 4 ohms. Repeated earthing resistance is not greater than l0. The selection and installation of the earthing device shall comply with the relevant requirements of the electrical safety.The insulation resistance of the 8.1.7 main circuit and control circuit shall not be less than 0.5M ohm.
Q: What is the dumbest bird in the aviary community? Is it really the Crane?
great question! I would love an aviary that was half open/half closed. I would love the birds to have the option at all times of choosing the protected surroundings (from weather, sounds, other animals, etc) of inside. Just as convenient would I love their ability to be outside in the fenced aviary so as to choose t heir own environment filled with trees, shrubs, plants, fountains but with enough room for me to observe and enjoy their interaction.
Q: Four for crane, two for insurance, two for insurance. What does that mean?
Four limit: torque, ultra high, variable amplitude, walking limit device. Two insurance: hook insurance and reel safety device.

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