• Crane , QTZ Series Tower Crane , Construction Tower Crane System 1
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Crane , QTZ Series Tower Crane , Construction Tower Crane

Crane , QTZ Series Tower Crane , Construction Tower Crane

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
1 pc
Supply Capability:
10000 pc/month

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  TC7021 12T construction used tower crane for sale

 

Product Description

 

Descriptions of our tower crane:

1, TC7021 have competitive price and excellent quality, suitable for all kinds of construction project and can work under all kinds of work condition. With their working radius from 2.5 to 70m, TC7021 tower cranes are famous for their large operating ranges, varied working methods and wide uses.  

2,This series of tower cranes has a horizontal jib frame, a jib-trolley radius-changing mechanism and a hydraulic self-raising mechanism.

3, It is original in design, reliable in operation and satisfactory in shape.

4,Equipped with all necessary safety devices, these cranes show a good speed-control capacity,, satisfactory operating stability and high work efficiency.

5,They are widely applied for the construction of high-rise hotels, resident buildings, high-rise industrial buildings, large-span factory buildings and tower like buildings like tall chimneys. Best after sales service will be offered which will get rid of all your worries in the purchase of our products

 

Advantage of our tower crane:

1, boom relief Angle is big, greatly widened the equipment capacity and scope of work.

2, suitable for the group of tower cross homework.

3, boom stability is good, combination amplitude range.

4, suitable for height have special requirements occasions construction.

5, lifting capacity big, effectively solve the high steel structure construction team crane big lifting capacity requirements.

 

Independent height (m)

50

Max height with attachment (m)

200

Working range can be adjusted(m) 

40/45/50/55/60/65/70

Min working range(m) 

2.5

Max lifting capacity(t)

12

Tip load @ 48m(t)

2.1

Hoist mechanism

Falls

2

4

Lifting capacity(t)

0-3

-

0-6

0-6

-

0-12

Speed(m/min)

0-80

-

0-40

0-40

-

0-20

Motor

YZPBF250-4-55W   

Trolleying mechanism

Speed(m/min)

0-56

Motor

YZPBE132M-4-7.5KW  

Slewing mechanism

Speed(r/min)

0-0.6

Motor

YLEW112M-6-120.N.M X2

Climbing speed(m/min)

0.5

Counterweight(t)

23.6

Mast section size(L×W×H)m

2.0×2.0×3.0m

Working temperature

-40-+60°C

Total power (KW)

95

Power supply requirement (KVA)

190KVA for generator

Cable type ( within 30 meters from site power source to lower

 electric box of tower crane )

50mm2(3+2, 5 cores)

Startup voltage & current

380V×95%=361V       219A

Rated working voltage & current

380V                  146A

 

Crane , QTZ Series Tower Crane , Construction Tower Crane

Crane , QTZ Series Tower Crane , Construction Tower Crane

Crane , QTZ Series Tower Crane , Construction Tower Crane

Crane , QTZ Series Tower Crane , Construction Tower Crane

Crane , QTZ Series Tower Crane , Construction Tower Crane

  

About CNBM:

1, CNBM is the biggest state-owned company which has had been awarded Qualified construction machinery manufactures and most of the big project are using our products.

2, CNBM possess key technical research department and could design & produce special machinery for international clients.

3, We have had passed ISO9001:2008,CE and etc.

4. The successful long-time construction machinery operation in the world testifies that the CMAX products' performance is stable.

5. More than 10 overseas branch office provide immediate commercial convenience and after service.

6. We also has building hoist, suspended platform, formwork, etc. We also signed the strategic partnership with Tadano (China), XCMG, Zoomlion, Sany and other prestigious crane manufacturer, getting the competitive cost price from them, and using our overseas marketing channel to promote their brands. We can provider a series of equipment for your building company customer and supply a basket scheme for the final users.

7. We have built a cover 50,000 square meter logistic park in, Dubai UAE, will be a great guarantee of our business in middle east and nearby area.

 

 

FAQ

 1. why chose us?

China National Building Materials (Group) Corporation (CNBM), established in 1984,now is one of the largest state-owned group corporation in China, dealing with building materials & industrial equipment. Up to year 2010, CNBM Group's total asset is 20 billion USD and total staff is more than 100,000.CNBM International Corporation, specializes in designing & manufacturing of various

kinds of construction machinery, including tower crane, building hoist, etc. All the equipment produced by CNBM are compliant with the National level quality standard, and wins great reputation for their endurable performance in worldwide markets.

 

2.How about the shipment?

You can put 2 sets of of wheel loaders in one 40HQ container. The spare parts are packed with boxes.

The delivery time is 20 days.

 

3. What about your service?

We have our factory, we can meet customers needs as soon as possible.

We have first rate professional technology and provide good after-sales service.

 

4.After Sales Service

We offer the Preventative Maintenance and After Sales Service. For we strongly feels about the importance of supporting our customers and the product solutions we provide. Consequently we offer comprehensive maintenance options to prevent equipment issues before they become problems. Also we offer one year guarantee period.   

Q: (a)What is the power output of the crane. (ignoring losses)?(b)If it takes the cran2 2 minutes to raise the payload to its final height, how far above the ground is this?(c)If the cable were to break as the payload reaches its final height, how fast would it be traveling as it hit the ground?
a) As the crane is lifting at constant speed, there is no acceleration on the payload, therefore the net forces on the payload are equal to 0. Therefore the crane overcomes just the force of gravity = 500*9.81 = 4905 N Power = force * velocity = 4905 * 0.7 = 3433.5 W b) distance = speed * time = 0.7 * (2 * 60) = 84 m c) assuming that the cable breaks while it is still going up at 0.7 m/s, therefore initial velocity upwards = 0.7 m/s. using v? = u? + 2as: v? = 0.7? + 2(-9.8)(-84) = 1646.89 v = √(1646.89) = 40.9 m/s the payload will be travelling at 40.9 m/s when it hit the ground.
Q: i saw a PS3 in a claw crane game at Six Flags Over Georgia i wonder how you can win it. It is possible to win it... somehow. I thought that the strategy was to lift the prize that is closest to the hole. I almost won a Kinect that way. So are there any other strategies??? Don't say buy 1 or there isnt a way to win because there is.
The crane machines work in such a way as to only make the claw strong enough to hold prizes after a certain amount of attempts so as to limit the amount of prizes taken.
Q: DENNY CRANE!
The only Denny I bow down to serves awesome coffee and a grand slam with all the syrup I can pour. What do you got?
Q: What are the types of common tower cranes?
(2) according to the transition typeSlewing tower crane: slewing support tower mounted on top of tower. It can be divided into tower cap, rotary tower, top rotating type, upper slewing platform type and rotary column type.The rotary tower crane, slewing tower body is arranged at the bottom, the tower to tower crane chassis rotation.
Q: What is a TQ80 tower crane?
To put it simply, QTZ is updated than the TQ model, and the TQ series first appeared in 70s, and the QTZ series came out in the 80,90. Various parameters must be more advanced than TQ.
Q: when high rise buildings are built a crane is erected to lift iron and cement up. How do they erect these cranes?
Like an Electra set, they are dismantled then put back together. They are transported in sections along with the counter balance weights. The most solid part is the cab.
Q: My husband and I will be going to the Crane Resort in Barbados for 3 nights in January. Just wondering, will we need to rent a car or is everything we need to see right there on the beach. Past Crane visitors or even Barbados civilians, please respond. Thanks :)
The okorder / If you only are focusing on relaxing at your resort/beach then renting a vehicle is not necessary.
Q: I've only seen one book that has it.I can't buy it until I get more money.That's the only one from that book I really wanted though...Is there any site that has it?With a diagram.Thanks!
I okorder /
Q: What is the difference between lifting height of tower crane and independent height?
Attachment can be understood as the kind of tower crane tied to a building. Without it, the tower will fall, and its strength, stiffness and stability can not be satisfied.
Q: I can't seem to find the item I'm looking for on-line. Maybe some fellow crane operator happens to know where I can find this. It's a quick releasing crane hook, it drops the load on cue. I think it would probably be remote-controlled.
What load rating are you looking for? I am familiar with heavy lift cranes and smaller ones that do not have any sort of release device that you are looking for. Most rated crane hooks have to be qualified to carry that load and any quick release feature could fail, dropping the load. Maybe you could find such a hook for a non-industrial application, but I have never seen anything like this in use.

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