Crane , QTZ Series Tower Crane , Construction Tower Crane

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Product Description:

  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.   

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Q:What is a tower crane without a collector?
The advantage of the collector is that the tower crane can be turned on one side without any limit, and how many circles can be turned. The tower crane is basically not equipped with collector, because collector generally needs to be located at the center of the tower's turning center, so it is inconvenient for operators to go up and down.
Q:What measures should be taken to make tower cranes stable?
The fatigue test data show that the fatigue life of the phosphating coating of steel wire rope is about 3 times of the same structure light steel wire rope (laboratory comparable conditions), not easy to wear and corrosion is not easy to cause the service life of wire rope large amplitude extension. Manganese phosphating is wear resistant phosphating, which can solve the wear problem in the use of wire rope and improve the corrosion resistance. It is for reference only
Q:What is the insulation resistance of tower crane?
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 should be included in the disassembly plan of the tower crane?
- 3 - tower crane demolition special program should include the following1. General situation of engineering;2, the tower crane position of the plane and elevation;3. Disassembly order;4, unit weight and hanging point position;5, remove the auxiliary equipment types, performance and arrangement position;6, the power set;7, the construction personnel configuration;8. Rigging and special tools;9, major sources of risk and safety technical measures;10, emergency plans, etc..Note: (1) the special construction plan for the installation and disassembly of tower cranes shall be examined and approved by the units, technology, safety, equipment and other departments, and shall be implemented after approval by the supervisor.(2) the contents and requirements of the special construction scheme for tower crane installation;Compiled from the "building construction tower crane installation, use and disassembly safety technical regulations" JGJ196-2010, please refer to the implementation. Attached: 1, Zhifu Wanda Plaza Tower Crane installation program 2, Muping District Cultural Center project PT7528 tower crane demolition program
Q:Climbing process of an internal climbing tower crane
Climbing tower crane, usually installed in the elevator shaft building or ad hoc Bay, also can be installed in the cylinder structure, by means of a climbing mechanism increases with the structure increases, generally every building 3~8m, crane climbing a tower, its height is only 20m left and right, lifting height with construction height and.
Q:The rated lifting capacity of a tower crane refers to what is allowed and what is allowed to be divided by the crane
The total quality of the crane rated liftingweightincludes the lifting load and the hook and rope a simplified example, such as the rated lifting weight of 100 tons, the quality of the hook and spreader for 5 tons, the actual quality of the goods can lift 95 tons.
Q:Tower crane railing height is greater than or equal to meters
GB 6067 requires the height of the railings of the crane to be 1050mm, and a horizontal bar with a spacing of 350mm shall be provided. The bottom should be set at a height of not less than 70mm.
Q:Are tower cranes the same as tower cranes?
Tomato, you tomato, potatoes, you potatoTalent exchange of tower crane and tower crane
Q:What is the wall radius of a qtz50 tower crane?
The working radius is usually 50 meters. There are also 48, 49 meters. For example, 4810, 4910, and 5010, belong to 50 tons of tower cranes.Qtz50 resolves to:Q: crane;T: Tower type;Z: Jack up;50: lifting torque of 50 tons meters.
Q:Where can I get the tower crane manufacturing permit?
Zhengzhou China enterprise management consulting company, oh, my uncle company for tower crane manufacturing license is to find them, they are not only a team of professional, and service is very thoughtful, efficient.

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