• TOWER CRANE TC3807 speed regulation by frequency control System 1
  • TOWER CRANE TC3807 speed regulation by frequency control System 2
  • TOWER CRANE TC3807 speed regulation by frequency control System 3
  • TOWER CRANE TC3807 speed regulation by frequency control System 4
TOWER CRANE TC3807 speed regulation by frequency control

TOWER CRANE TC3807 speed regulation by frequency control

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Loading Port:
Qingdao
Payment Terms:
TT or LC
Min Order Qty:
1 unit
Supply Capability:
1000 unit/month

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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.

 

 

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

 

 TOWER CRANE TC3807 speed regulation by frequency control

Q: we using EOT crane my company
Your okorder /... contact them with your enquiry. You must include Model and anticipated loads as that determines torque applied. Seed is operator dependent for safe operation.
Q: How does the torque of a construction crane relate to the torque of a car?
Torque is force x distance. In a car, the torque is the force twisting the drive axles, and the distance is the radius of the driving wheels. It controls the rate of acceleration of the car. In a crane, the force is that provided by the winch cable, and the distance is the length of the jib. It controls the weight the crane can lift.
Q: i have a report on it and its due on the 20th
I'm from the Sandhills of Nebraska and that is where some of them come from.
Q: What i am seeing is that people are using manual digging and buckets and manually cutting through steel!If they use cranes, it would be alot faster to get to those buried. I dont belive it is unsafe, if they are meticulous.
It's a good thought, but, in addition to the points others have mentioned, there could be 500+ collapsed buildings in even a small city. How many construction cranes with sufficient lifting capacity do you think a small town would have? How many qualified operators would there be (keeping in mind that some of them may themselves be buried in the rubble? Amateurs operating heavy equipment in the situation - well meaning though they may be - is almost sure to cause additional casualties among the rescuers. In any case, my personal opinion (cynical, for sure) is that the news media would rather have footage of the rescuers desperately digging by hand than a crane lifting huge slabs off of victims. There is much more pathos and drama in a hand dug rescue than a mechanical one, even if the mechanical one is actually more difficult to arrange.
Q: I've read significance and accordance online. But i can't find a source for defiance, I used epub bud for the other two books but this book isn't on the website. Is there anyway I can read defiance by Shelly Crane online for free?
did you ever get to read this book
Q: Something confuses me in dragon ball:When roshi has a flash back, he says crane didn't turn evil until after mutaito fails to kill piccolo, but in the filer where goku goes back in time, crane is an asshole before picolo and roshi referred to him as a friend before the piccolo incident.Also, why in the piccolo flash back are roshi and crane bald but in the filler do they have hair and glasses?Also, why in the filler does crane have a different outfit in the filler than the other students but in the piccolo flash back he has the same outfit as roshi?
The idea is that Crane Hermit is a selfish man that would do anything to get what he wants. In the past, Master Mutaito was there to ram some discipline in his head and have him under control. Following the events of his death and the defeat of King Piccolo, nothing could really stop him from being a selfish jerk again. Roshi probably didn't mention Crane being bad before King Piccolo's arrival because he wasn't really evil before it either. He was selfish and greedy, but not outright despicable as later... at least not that much. Roshi seeing Crane as a friend might imply that Crane had some redeeming qualities during his years as Roshi's rival under Mutaito's guidance. About their baldness, I think they shaved their heads after a while due to how monks and some martial artists tend to shave their heads. That or it's a plot hole due/filler error. It's again either a plot hole/filler error or they just switched outfits once they reached a certain level of their training, just like how you gain a different color of band as you progress in Judo and Karate.
Q: Where are levers used in and throughout the crane
the boom itself can become a lever if the load lifted is greater than the cranes capacity and causes the crane to tip over--the weight acts upon the boom(lever)--the pivot point of the boom becomes the fulcrum and OSHA will soon drop by to find out why!
Q: i am doing a major research paper on the other Stephen Crane and would like to know some suggestions about a name for the title of this essay it is an English 3 assignment. The book that i read is called The Red Badge of Courage. please help!
It depends on what the paper is about. I could suggest a title such as The Influence of John Locke's Theory of Personal Identity on 'The Red Badge of Courage,' but if your paper is about Crane's portrayal of the military hierarchy instead, that would be an incredibly stupid title. So nobody can really answer your question.
Q: how a tower crane for a high rise building construction is erected?
Depends on the type - if the building is not that tall, the tower crane could be built by any taller crane (either a mobile one or an existing one on the site). If the building is very tall, a self-erecting crane is usually used; this type has a sort of jack mechanism somewhere in the tower (usually near the bottom), so as it is needed, the existing tower can be lifted, and another tower section is inserted to raise the entire structure, repeating the process as needed as the structure the crane is building gets taller (thus, the crane is building itself as it goes along).
Q: Were the anti-gravity machines used to build the pyramids levers, winches and cranes?
Levers winches and cranes all use a counter balance. Its weight that helps move weight in different ways. There is no such thing as an anti-gravity machine.

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