QTZ40 Series 4808 Model Top Kits Tower Crane Self Erecting Tower Crane

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China main port
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TT OR LC
Min Order Qty:
1 set
Supply Capability:
1000 set/month

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Item specifice:

Maximum Lifting Weight: 4T Maximum Lifting Height(M): 36 Rated Loading Capacity: 4t
Span: 36 Rated Load Moment: 36

Product Description:

Brief Introduction:

 

1.Overall haulage with only a 5t vehicle for whole machine transportation. Haulage size can smoothly pass all standard bridge and culvert.
2.After quick erection, it can start working normally within one hour.

 

3.Correctly-positioned mechanism kinematics spacing.
4.High precision and reliable load moment limiter and load lifting limiter.
5.Special system: wheelbarrow persist axis break
6.Two purpose: arm-brace fixing and orbit walking
7.Overall haulage bridge can be easily altered into a transport tow (10t)
8.35m height and could be used 30 degree higher up

 

9.Crane body locked automatically, crane jib docked automatically, pulley at jib point positioned automatically. There is no artificial high-altitude operation through the whole erection and dismantling process.


Max.Lifting   moment

40   tm

Lifting   capacity

4   Ratio

411m

1136m

4.0t

4.01.1t

2   Ratio

421m

2136m

2.0t

2.01.1t

Lifting   speed

Ratio

α=2

α=4

ton

2

1

4

2

m/min

024

029

012

014.5

Slewing   speed

00.65r/min

Trolleying   speed

20/30m/min

Erect   Height

30.9m

Working   temperature

-20℃~+40

Total   power

24.9KW

Lifting   mechanism

Motor

Model

YEJ160M-4

PowerkW

11

Speedr/min

1460

Uplifting   mechanism

Motor

Model

YEJ100L2-4

PowerkW

11

Speedr/min

1430

Slewing   mechanism

Motor

Model

YLEW112L-55-6B1

MomentN.m

55

Trolleying   mechanism

Motor

Model

YDEJ100L-4/6

PowerkW

2.2/1.5

QTZ40 Series 4808 Model Top Kits Tower Crane Self Erecting Tower Crane

QTZ40 Series 4808 Model Top Kits Tower Crane Self Erecting Tower Crane

QTZ40 Series 4808 Model Top Kits Tower Crane Self Erecting Tower Crane

QTZ40 Series 4808 Model Top Kits Tower Crane Self Erecting Tower Crane


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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- Required specifications

- Inquire about price/MOQ

Q:What tower cranes are used on the 30 storey house?
According to the weight and the lifting range in order to determine the size of the tower crane tower crane lifting moment! Size to measure the lifting torque maximum weight * maximum weight of the amplitude of.QTZ63 represents 63 tons - meters, general building does not involve carrying heavy, almost 63!
Q:What kind of equipment must be installed on luffing trolley of horizontal luffing tower crane?
It must be installed:To prevent the trolley cable broken car slip away;
Q:How to build a tower crane?
7, the boom of the horizontal installation, setup of counterweight, main hoist installation, installation sequence of these large, there are provisions in the instructions.8 、 install operating room, main cable and control cable. Installation of crane wire rope, hook, lifting the car has been in the assembly of the boom when installed.9, at this time has completed the basic installation, the later self lifting installation, the main work by the tower crane itself equipment and artificial to complete.10 tower crane from basic height to work height.Each type of tower crane has different self lifting mounting methods. In fact, in addition to carrying heavy loads, the installation of a large number of high-strength bolts is a heavy work.11, the above is the general procedure, the actual installation work in strict accordance with the installation instructions. According to historical experience, tower crane installation accidents often occur in some professional installation team.12, the old type of tower crane installation is relatively simple, but also have independent installation, and now the development of automobile crane is not a must, general use of car crane can complete all the installation.
Q:What windproof devices should be set up for crane work?
Safety protection device and function of crane1. overload limiterIt is a safety guard for cranes to prevent overload, also called a weight limiter. The safety function of the utility model is that when the crane load exceeds the rated value, the lifting action is stopped, so as to avoid overloading. Overload limiters are widely used in bridge type cranes and elevators. Some boom type cranes (such as tower cranes and gantry cranes) use the overload limiter and the torque limiter together. Overload limiter has mechanical, electronic and many types.(1): mechanical drive ram through a lever and a spring cam, etc., when overloaded, hit the switch control rod and the lifting action phase, cut off the power source of hoisting mechanism, control the lifting mechanism to suspend operations.(2) electronic: composed of a sensor, an operational amplifier, to control the actuator and load indicator, display, control and alarm and other security functions in a body. When the crane is loaded, the sensor on the load bearing component is deformed, and the load weight is converted into an electric signal, and the value of the load is indicated by operation amplification. When the load exceeds the rated load, the power source of the lifting mechanism is cut off so that the lifting action of the lifting mechanism can not be realized.
Q:What are the parts of a tower crane? What are their main functions?
The tower crane is mainly composed of a tower body, door frame, tower, tower cap, boom, arm and other metal structure and balance hoisting, luffing, slewing mechanism operation, composition and electrical system and safety device etc.!
Q:How to improve the stability of tower crane
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: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.
Q:In what circumstances should a tower crane be demonstrated by an expert?
(two) lifting equipment with lifting capacity of 300kN and above; climbing within height 200m or aboveDemolition of heavy equipment.
Q:What is the difference between a tower crane and a jack up tower crane?
Tower cranes, because there is no running mechanism, so tower crane can not do any movement. Fixed tower crane can be divided into the tower height invariant and Jack up. That is, the jack up tower crane is a kind of fixed tower crane.
Q:What is the function of the balance valve in the hydraulic jacking system of tower crane?
The function of the balance valve is to maintain the balance of the oil pressure, the hydraulic oil delivery flow is stable, so that the tower crane jacket and the upper part of the lift, disassembly, standard time, lift and smooth.

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