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

QTZ40 Series 4808 Model Top Kits Tower Crane Self Erecting Tower Crane System 1

QTZ40 Series 4808 Model Top Kits Tower Crane Self Erecting Tower Crane System 2

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

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 1 set

Supply Capability:: 1000 set/month

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Specification

Maximum Lifting Weight:

Maximum Lifting Height（M）:

Rated Loading Capacity:

Span:

Rated Load Moment:

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		4～11m			11～36m
				4.0t			4.0～1.1t
		2 Ratio		4～21m			21～36m
				2.0t			2.0～1.1t
Lifting speed		Ratio		α=2			α=4
		ton		2		1	4	2
		m/min		0～24		0～29	0～12	0～14.5
Slewing speed		0～0.65r/min
Trolleying speed		20/30m/min
Erect Height		30.9m
Working temperature		-20℃～+40℃
Total power		24.9KW
Lifting mechanism	Motor		Model		YEJ160M-4
			Power（kW）		11
			Speed（r/min）		1460
Uplifting mechanism	Motor		Model		YEJ100L2-4
			Power（kW）		11
			Speed（r/min）		1430
Slewing mechanism	Motor		Model		YLEW112L-55-6B1
			Moment（N.m）		55
Trolleying mechanism	Motor		Model		YDEJ100L-4/6
			Power（kW）		2.2/1.5

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.

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: Does anyone know how to make an origami crane ring out of a single dollar bill? I know it's possible, because I've seen a picture.: Sorry I can't give you the specific information you want. This site might link you up to a site that is more helpful. members.

Q: please help me solve.. i really don't get itttt: 1 horse power = 746 watt. So the work W done by the crane in 15 s is given by W = 8*746*15 J . So the distance, S through which the crane lifted 100 kg, presumably at constant speed is given by 100*9.81*S = 8*746*15 or S = [(8*746*15)/(100*9.81)] = 91.25 m

Q: They like fly on peoples face, i dont know why they come up on the face and it creeps me out, i have no idea why it comes inside of the house in the first place?: I killed a Crane Fly because I thought i was a type of mosquito. Now I feel rather bad about it. After looking seeing how Crane Fly's look online.

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: The fight sequence on the construction crane between 007 and villain Molakka was mezmorizing. But would the laws of gravity allow for it to happen in real life? I mean, acrobats perform similar stunts, but could the average super spy and villain?: anything scripted in general is not realistic,

Q: How many motors does the ZOOMLION TC6013A-6 tower crane use?: Model: YZRDW225M-4/8 power: 24/24KW speed: 1420/725r/minDirect search {ZOOMLION QTZ80 (tc6013) _ crane Manual Part 1 (Part Two)}, can also be found.

Q: These cranes always stay higher than the construction process but I have never seen how they are extended to stay above all of it. They come in two formats, free standing and those attached to the building. The possibilities that I thought of was that maybe they use another crane to lift the housing and the horisontal arm to put in more modules into the vertical part; or that they extend it by some way by putting modules in at the top or bottom and that the crane has some self-lifting mechanism to accommodate the insertion of more modules. However, I have never seen this being done, nor does the construction of these cranes point to its ability to do so. The only other possibility that I could think of was that the crane is set up at the outset to be higher than the completed height of the building, hence there is no need to extend it but this does not explain how they do it for very high buildings where the crane is attached to the building and seems to grow higher with the building.: In very tall buildings the tower crane's vertical frame usually sits in an elevator shaft. Initially it sits on its own base but as the building gets higher the crane is lifted using hydraulic jacks locked into the floor or floors above as they are completed. The construction of these cranes is rather ingenious in that they can dismantle themselves and the respective components lowered to the ground.

Q: Kindly name the companies.: Chowgule from Goa,JCB ,Ballabgarh are the few companies. Refer Indiatrade directory for more info

Q: What is the allowable range of vertical deviation for tower cranes?: The specified installation, construction, demolition of tower crane safety technical regulations in JGJ196--2010: the allowable deviation of verticality Tower: in the wind under no-load, the tower axis line should be less than 4 per thousand of the bearing surfaces of the lateral vertical deviation; after the attachment, the highest attachment point following the vertical deviation should be less than 2 per thousand. According to the installation state of tower crane, the deviation range of verticality is divided into 4/1000 or 2/1000. Tower crane maximum independent installation height (maximum installation height, does not need to be attached to the wall of the instructions specified in the free end) and height (the highest point of a tower crane attached to the wall above the height, body the following provisions in the specification of tower crane slewing) the vertical deviation range was 4/1000; tower crane attachment verticality deviation below the allowable range is 2/1000.

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