HUAXIA TOWER CRANE QTZ40(4807)

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The tower crane is a hydraulic tower crane with swing top, horizontal jib and mobile trolley. It has the hoisting moment for400Kn.m;the maximum hoisting load of 4t and the maximum working radius of 48m.The hoisting height of anchoring tower crane is 29.7m and that of climbing tower crane is 90m.

The tower crane has ingenious design, beautiful shape and simple structure .It is easy to operate and maintain, and is safe and at a reasonable price .It is an ideal construction machines for construction enterprises. It has hoisting mechanism, swing mechanism, top-rising mechanism and radius mechanism, which can work individually or cooperatively to make a high efficiency. The top-rising mechanism is used to raise or lower tower. The hoisting mechanism has 3-speed electronic motor respectively for high, medium and slow hoisting speeds. It has flexible swing mechanism and radius mechanism and slewing mechanism for vertical and /or horizontal transportation of building materials in one time.

The tower crane has complete and sensitive protection devices such as hoisting weight limiter, hoisting moment limiter, hoisting height limiter, radius limiter and swing limiter to ensure of regular operation. It also has rest platform, guardrail and other protection devices. Driver’s cab is at a side of rib and has big space and wide visual field.

The tower crane has excellent performance and is suitable for hoisting in short civil or industrial buildings or loading or unloading in ports or goods yards

The products of Huaxia Group are your best choices of construction machines.

Name

Unit

Parameter

QTZ40A(TC4807)

Nominal hoisting moment

kN.m

400

Max. hoisting weight

t

4

Rated hoisting weight at jib nose

t

0.71

Working radius

`

m

2.5-48

Height

Anchoring

m

29.7

Climbing

m

90

Hoisting speed

Magnification

a=2

a=4

Hoisting speed

m/min

8

34

52

4

17

26

Hoisting weight

T

2

2

1

4

4

2

Swing speed

r/min

0--0.6

Radius changing speed

r/min

33/16.5

Top rising speed

r/min

0.7

Tower crane weight

Net weight (anchoring)

t

19.4(19.9)

Ballast weight

t

6.3

Total weight (anchoring)

t

25.7(26.2)

Working swing radius

m

I

48

Rear swing radius

m

12.8

Max. working wind speed

m/s

20

Max. wind speed for top rising

m/s

13

Ambient temperature

-20 -- 40

 
Figure 1-2 Technical Parameters of Main Parts

Name

Parameter

QTZ40A(TC4807)

Hoisting mechanism

Electric motor

Model

YZS200L1-4/6/24

Power

Kw

15/15/4

Rev

r/min

1440/960/220

Brake

Model

YWZ-300/45

Brake moment

N.m

450

Hydraulic propeller

YTl-45

Reducer

Model

JZQ500

Dia.

mm

500

Reduction ratio

15.75

Steel Cable

6×37-11-1670-I-smooth-rightward twist

Swing mechanism

Motor

Model

YZR132M2-6

Power

kW

3.7

Rev

R/min

908

Hydraulic coupler

YOX-280A

Reducer

Model

XX4-80

Swing bearing

HSW.32.1220

Radius mechanism

Motor

Model

YD112M-8/4

Power

kW

1.5/2.4

Rev

R/min

700/1410

Reducer

Model

WCJ-120

Reduction ratio

38

Steel cable

6×19-6.2-1570-I-smooth-rightward twist

Top rising mechanism

Motor

Model

Y100L2-4    B5

Power

kW

3

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Q:Who is responsible for the construction of the pile foundation of the tower crane?
According to the present list of quotations, the winning project, the tower crane cost has been included in the total price, and has nothing to do with the construction side, that is, the cost of tower crane foundation should be borne by the construction side.
Q:1000 paper cranes myth?
I do believe in it, somewhat. Years ago one of my teachers who had cancer made 1000 paper cranes and then beat it shortly after. I'm not sure about the process, or how it works exactly, but I do think that I believe in it. she still has those paper cranes hanging up in her classroom.
Q:How has Stephen Crane influenced authors and writers?
I'd mention his book Red Badge of Courage and how it changed the war novel for American and English writers. You can look at books like Catch-22 , MASH, or Hemingway's war novels and find that personal voice that Crane used.
Q:I need Help now : Crane Fly?
No dude, youre confusing two different species. Daddy long legs- or Harvestmen, as they're known in the UK- are the ones with powerful venom, but fangs too short to bite a human being. Crane flies, which look kind of like a flying daddy long legs, are a species that feed one nectar only. They are not carnivorous, and they don't have fangs, or a stinger, or any other means to defend themselves. The females have a tool on their abdomens for depositing eggs. It looks kind of like a stinger, but it is not one, and can do no harm at all.Daddy long legs-spiders can not fly. Crane flies don't even live long enough to eat. Most of the species of crane flies live long enough to mate, and nothing more. Theres is no reason to fear either species. Oh, and they don't eat mosquitos. That's a myth.
Q:Origami Crane?
These okorder.com It takes quite a few tries to get it right, but once you do it is easy.
Q:in the Open Boat by Stephen Crane, in part IV why are the characters not identified?
The characters are defined by their roles on the boat. Their previous experiences or personalities don't matter here. It is just the narrow repetitive experience of rowing and how they each contribute to it. Each character is Everyman, being thrown around by the merciless, indifferent hand of Fate. I think that Crane was squarely in the company of Naturalists (they think there's no such thing as individual agency, like Darwinism in fiction). The interesting thing to think about here is that one character has a name - Billie, the oiler. Why is this? He's the strongest, he's the most experienced and he's the one that dies. He's an individual to the reader but Fate doesn't care. I'm sure you can flesh the ideas out now.
Q:What are the special operators of tower cranes?
The tower has special operations personnel of heavy machinery refers to the construction site in the tower crane division signal cable, installation and disassembly, the driver, and the demolition work of gondola installation, may cause serious harm to themselves, others and the surrounding facilities operations personnel.
Q:How to find the surface area of a paper crane?
Do you remember the formula for determining area? For a flat object (like your paper) the formula is Length X Width = Area. or LW=A So unfold your paper, and measure the length and the width, and simply multiply the two numbers. The resulting number will be your area. Of course, that is the area of the unfolded paper. Your crane in it's folded form will have a much different, and harder to find, surface area value.
Q:How do they get big cranes up on skyscrapers for renovation? and how do they bring it down? And where they keep the cranes after done?
IT IS BUILT UP SECTION BY SECTION AND THEN TAKE IT DOWN THE SAME WAY.
Q:WHAT IS WITH THESE CRANE FLIES????!!!!!?
The crane fly season only last for a month or so. There are years when they can reach almost plague proportions but within another 2-3 years their numbers should return to normal.. They can cause some damage to farm crops but the good news is that they are harmless to us.

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