Construction Machine 8t Topless Tower Crane QTZ80A

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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

 

Construction Machine 8t Topless Tower Crane QTZ80A

Construction Machine 8t Topless Tower Crane QTZ80A

Construction Machine 8t Topless Tower Crane QTZ80A

Construction Machine 8t Topless Tower Crane QTZ80A

Construction Machine 8t Topless Tower Crane QTZ80A

  

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 does a track type tower crane look like? In that case, use?
The rail type multi characteristic tower crane consists of track, door frame, main arm, auxiliary arm, hook and so on. Its features are: A, crane through the door frame (2), supported on a track (1); B, the door frame (2) is provided with a rotary bearing (3); C (3) is arranged on the rotary supporting all kinds of machinery and equipment (4), and balance weight (8); D, the main arm (5) the jib (6) through the bearing cable (7) is installed on the rotary support (3); E, the main arm (5) side arm (6) and Russo (7) can have a variety of length combination; F, a main arm, jib all tube truss structure; G, hook pulley h, equipped with a variety of rate; the torque limiter (10) and amplitude detection device (11); I, operating room in slewing bearing (3); J, self moving use winch is luffing winch main arm, mounted on a rotary support (3).Track type multi characteristic tower crane. The utility model is especially suitable for power construction and hoisting operation. The slewing support on the track type door frame is provided with a main and an auxiliary arm frame, and various variants can be formed through different combinations. Its maximum torque of 3360 tons meters, the maximum lifting capacity of 140 tons, the maximum working range of 60 meters, the maximum rise of 120 meters. The utility model can be carried in the lifting, and the work is smooth and safe. The main and auxiliary arms are all truss structures, light in weight. The electronic torque limiter and other safety devices are adopted, and the 130 meter high machine can be installed by itself. This machine can also be used in petroleum, chemical, metallurgical and other large projects.
Q:Tower crane 4 how to change the rate of 2 magnification, how to change, say detailed points
There is a magnification pin on the hook group. When the magnification pin is removed, the pulley will automatically slide to the lifting trolley. At this point, the rope will be turned into 2 fold!Some manufacturers produce pulley, also need to be in the car, and then the magnification pulley with pin shaft fixed in the car!
Q:What special operators should be equipped for the installation and disassembly of tower cranes?
According to the requirements of the 2.0.3 specification: tower crane tower crane installation and disassembly operation should be equipped with the following: 1, hold a qualified safety assessment certificate of the project and responsible for the safety of people and machinery management personnel;
Q:Brief introduction of ten no hanging criterion for tower crane operation
8, oxygen acetylene generator with explosive materials are not allowed to hang; 9, mechanical safety device failure or sick when not hanging; 10, bad weather, more than six winds not hanging.
Q:What are the working mechanisms and safety devices of tower cranes?
A safety device: four limit: height limit, amplitude limit, slewing limit, travel limit; three insurance: luffing rope insurance, car insurance broken shaft, the hook to prevent falling insurance; two limit: torque limiter, weight limiter on these roughly.
Q:What kind of personnel should be installed for the tower crane installation and disassembly?
According to GB specifications:2.0.3 the installation and disassembly of tower cranes shall be provided with the following personnel:1. The project and the safety supervisor and the mechanical management personnel who have the safety inspection certificate;
Q:What are the necessary safety devices on a tower crane?
(6) lightning protection and anti electromagnetic wave induction device;For the crane whose hinge height is over 50m, the lightning arrester shall be installed according to the actual situation and the electromagnetic interference shall be taken.(7) tower crane shall install limit torque coupling in order to prevent slewing overload(8) anti stripping device prevents the rope from working position(9) the device prevents the rope from breaking and the trolley is free to slide(10) the car prevents the broken axle device, prevents the trolley wheel to fall off the axle, then falls(11) each part of the brake is a working device and a safety device
Q:Tower crane attached concrete pump can be? Are there any state regulations?
Do not need to expressly can not tower crane work mode cannot withstand recoil thrust and level, and these forces or dynamic load, if the use of the tower crane is not an accident, almost impossible, then help the wall studs, will fall off, the consequences are not dare to think.
Q:What are the qualifications for site installation and acceptance of tower cranes and construction lifts?
This really did not hear, the site installed to be tested, usually installed, in accordance with the safety procedures, acceptance of the OK
Q:Is tower crane a tower crane?
Yes, the tower crane is commonly known as the "standard" in the industry. It is called tower crane.

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