• TOWER CRANE QTZ4 hydraulic tower crane with swing top, horizontal jib and mobile trolley System 1
  • TOWER CRANE QTZ4 hydraulic tower crane with swing top, horizontal jib and mobile trolley System 2
  • TOWER CRANE QTZ4 hydraulic tower crane with swing top, horizontal jib and mobile trolley System 3
TOWER CRANE QTZ4 hydraulic tower crane with swing top, horizontal jib and mobile trolley

TOWER CRANE QTZ4 hydraulic tower crane with swing top, horizontal jib and mobile trolley

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Loading Port:
Qingdao
Payment Terms:
TT or LC
Min Order Qty:
1 unit
Supply Capability:
6 unit/month

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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

 TOWER CRANE QTZ4 hydraulic tower crane with swing top, horizontal jib and mobile trolley

Q: I've been wondering about the infamous Crane Stance that many people associate with Martial Arts. Is the Crane Stance a technique that can be used in a fight and strike an opponent effectively without overly exposing yourself to strikes by your opponent? If it is, what are some techniques that can be used out of a Crane Stance?
As a practitioner of White Crane Boxing, I can tell you that the way the crane stance is demonstrated, is due to lack of knowledge... of course. Firstly, there is no one crane stance. It is not THE crane stance... it is ONE of the crane stances. If there was going to be A crane stance, it would be the Sanchin stance, for it is the foundation stance of the White Crane Fist. Aside from all that, when you perform the single leg crane stance, it is only because there is a technique being executed against an attacker. Yes, it can be used to prepare a kick against an attacker but it has many more applications than that seen on the karate kid and it is not even part of the basic applications for that posture. The technique you saw in the movie was taken from the kata Sanseiru and it is not from a crane stance, it is from Zenkutsu Dachi and it is not merely a skipping front kick as I have heard it called. stslavik - your answer was very good. You have a better understanding than most of the people who answer here. Stances are executions of techniques.
Q: are parts availble for shop crane? Hydraulic ram plunger o rings has split....need part?
What is the crane make and model? If you don't have the model of the crane you can stop by almost any hydraulic/hose shop, they should be able to match up the packings.
Q: I work a few blocks away and my window faces the building, now shrouded in black netting and scaffolding. I cannot comprehend how that crane got up there!!
Call Vergona Crane Co. in NJ or Cranes, Inc. (718-784-1776) or send your question to No kidding, one of the three will be able to answer your question. They know all about Cranes and Derricks. I wouldn't be surprised if Vergona or Cranes leased the crane to the construction company on that site. I am a Lifestyle Consultant among other skills, etc. and because I work for titans of all industries in NYC, I am knowledgeable about a lot of things.
Q: I had a dream and it wos really scary so realistic i woke up crying and could go to work the next dayi was in my house and woke up and came downstairs and there were letters on the floor and someone was picking them up then i looked outside and there wos a big fire and a crane had fallen down and explosion and everyone was dying their faces burnt i burst out crying. what does it mean?
Probably some stress or fear is looming large in your subconscious mind. Scary dreams often occur when you have something that is stressing you. That is assuming you didn't read some book or watch some movie that brought it on, that is another possibility. Often we replay images we have in our heads from the day before. I don't think it is an omen or anything. So, be glad to say it was only a dream.
Q: Under what circumstances does a tower crane require third party testing?
New installation, demolition, close, major transformation, the use of site work committee, the use of factories to the Technical Supervision Bureau
Q: do they get the concrete blocks up that hang at the end? Do they use another type of crane to assemble them?
Yep, they use a smaller crane that sits on the back of a truck and has a telescopic arm, it only takes a few days. There's a lot of construction going on in my city and I've seen them do it.
Q: A. Power LinesB. WaterC. FiresD. Overturns
Um, caused by operators who get their training on Yahoo Answers? Overturns are more dangerous to others, a couple years ago a crane killed someone in an apartment across the street from where the crane was working, in a city not far from where I live, but the operator survived. However power lines might be more dangerous to the operator since I suspect they happen more often.
Q: I read this book recently and i got emotional over it. It relates so much to my life and i think maybe i know what my dad was thinking before he died. I was just wondering what was your reaction after reading this short story?
This book gave me lots of hope. I really loved to hear about Sadako and how she folded so many cranes. I wanted to believe that she would finish the paper cranes and she would get better. When she died in the ending it was very sad. Someone with so much hope and motivation doesn't deserve to die. The book also made me think a lot about why Sadako was sick in the first place. She was only two-years-old when the Americans dropped the bomb on Hiroshima, but she was still eventually killed from it. This book shows the long-lasting effects war has on a country and its people. It really makes you think twice about war. I really enjoyed reading this book. It was an easy read that I had a hard time putting down. Every chance I got I read this book! While it was sad in the end, it was great to hear about Sadako's life and how her friends finished her paper cranes for her. The plot was interesting and exciting. I really like the main character too. Sadako was a very brave, strong person that I wish I was more like. She woke up every day with the will to live and that gave me a lot of hope.
Q: how do you say paper crane in japanese?
Origami.
Q: how a tower crane for a high rise building construction is erected?
Depends on the type - if the building is not that tall, the tower crane could be built by any taller crane (either a mobile one or an existing one on the site). If the building is very tall, a self-erecting crane is usually used; this type has a sort of jack mechanism somewhere in the tower (usually near the bottom), so as it is needed, the existing tower can be lifted, and another tower section is inserted to raise the entire structure, repeating the process as needed as the structure the crane is building gets taller (thus, the crane is building itself as it goes along).

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