• 4T Mini Tower Crane with Good Quality For Sale System 1
  • 4T Mini Tower Crane with Good Quality For Sale System 2
  • 4T Mini Tower Crane with Good Quality For Sale System 3
4T Mini Tower Crane with Good Quality For Sale

4T Mini Tower Crane with Good Quality For Sale

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
1 set
Supply Capability:
20 set/month

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Descriptions of our tower crane:

1, TC4808 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 2.25 to 48m, TC4808 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.

 

Item

Unit

2 fall

4fall

rated hoisting moment

kN.m

1250

max.hoisting load

t

5

10

working radius

m

3~60

Hoisting load at the max.radius

t

1.803

1.769

radius at the max.hoisting load a

m

27.155

14.867

Hoisting height

Free-standing

m

50

anchoring

180

90

 hoisting speed

m/min

104/52.05

50.05/25.02

slewing speed

r/min

0.61

trolleying speed

m/min

58.6/29.3/8.79

top-rising speed

0.4

lowest steady fallring speed

≤5

outline of th

chassis

m

7.76x7.76

Height of complete machine(free-standing)

60.502

jibend to the slewing center

61.383

balance jibend to the slewing center

14.82

self-weight

structure weight(free-standing)

t

53.506

counter weight

max.radius 60m

18.5

max.radius 56m

16.7

max.radius 50m

13.9

total capacity of motor

kW

60.85

permitted working temperature

°C

-20~+40

 basic wind pressure of working condition

Pa

250

basic wind pressure of non-workingcondition

Pa

1100

power supply parameter

50Hz

~380V±10%

 

4T Mini Tower Crane with Good Quality For Sale

4T Mini Tower Crane with Good Quality For Sale

 

Q: What is the scope of the installation and disassembly of self lifting tower cranes and the applicable range of the cost and the off-site transportation cost?
The installation and disassembly of the existing self rated tower crane, the first cost and the off-site transportation cost quota are divided by the lifting moment 1000kNm and 2000kNm of the jack up tower crane.
Q: Old used 200 t crawler crane is available for purchase. What are the guidelines/ thumb rules for assessing its cost ?
Supply vs demand Extreme examples: If the crane is no longer needed anywhere, the cost will be 0; no demand. If the crane still has a unique useable function and there is only one available, it's immediate cost will be very high; no supply. So, assuming that the cranes supply/demand is somewhere in the middle, the methodology for assessing it's cost would be to evaluate the following: * Where is it located with respect to where it is needed? (place value) * How quickly do I need it, and how quickly can I get the crane? (time value) * What alternative solutions are available? * How much do other similar cranes cost? * etc Hope this helps!
Q: I have an odd fear of construction cranes. I literally get chills and almost dizzy anytime I see cranes. I get very nervous and almost want to cry. I know this is so odd but, I've seen phobias of things that are even more odd so I wonder...is there a phobia for my fear? Does anyone else share my fear?
Devastator-aphobia. Sorry. It's a bad reference to the Transformers cartoons in the 1980s. The constructicons were robots who linked together to form Devastator. It was kind of a Voltron rip-off, except with backhoes and forklifts instead of robot lions.
Q: job description of crane operator and truck driver?
Crane operator has to be certified by the state and the truck driver has to have a class A drivers license :)
Q: Tiger=StrengthSnake=FlexibilityCrane=Balance and the last two are?
I know there are 5 styles of kung fu Is that what you know? The 5 Animal are sets that are included in various arts. And the ones you mentioned are wrong. Crane is not used for Balance. You got this from some TV program with the crane guy dodging ninja stars while balancing on Mei Hua poles. Those people were showing how little they understand martial arts and the crane guy was representing Tibetan Crane. He must have been bursting from wanting to show the true essence of Tibetan Crane but couldn't because the show dictates what they want to showcase. Either way, don't go by your own understanding because you don't know the real essence of these styles. Go online and research for yourself, from reputable sources. I can point you to some if you're really interested in TRUTH in the martial arts and not BS. Don't say things like I know that... because you don't. Learn about it for real.
Q: My science teacher wants to know why cranes make work easier rather than just lifting an object yourself. She refers to the formula of force x distance. So i have to compare (in a way) the work of a human lifting an object and a crane lifting an object. Grrrr.... I hate this project!
The type of crane she is referring to ia a simple pole with a fulcrum placed between the person operating the crane, and the mass to be lifted. Imagine a weightless pole with a rope tied to one end attached to a mass of weight 224 lbs The pole is 9 feet long Let's say the human weighs 112 lbs, or half of what is to be lifted. Without a crane, it will be difficult to lift that much and swing it around. With the crane, though, let's look at the advantage when a fulcrum is placed under the pole and the person pushes down on the pole to lift the weight. First, note that gravity is in favor of the person to use their weight on the pole. Using physics, with the fulcrum place at x from the mass to be lifted, the downward force of the person is F*(9-x)=224*x or F=224*x/(9-x) now plug in some values for x and compute the force: x F 4.5 224 3.5 143 2.5 86 1.5 45 0.5 13 I started by placing the fulcrum exactly in the middle and then moving the fulcrum in increments of 1 foot closer to the weight to be lifted Notice that the more pole towards the person pressing down, the less force the person has to apply to lift the weight. Also, note that when the fulcrum is in the middle, the person must apply a downward force equal to the weight - which willl be difficult foir a person that weighs 112lbs. However, once the fulcrum is placed 2.5 ft from the weight, the person only need apply 86 lbs of downward pressure. Leverage. j
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.
The cranes are self erecting. The cranes tower is raised in sections. The lowest section is jacked up to the correct height and then a new section inserted and so on.
Q: LCS , MCS , HCS?
Good question! I have lots of experience driving cranes lifting boats in and out of the water mainly. But I don't really think this ever occurred to me. So I had a look around on the old www - which I do not usually do, much, in 'Answers'. But here's your answer, I reckon (another interesting QA site, too! - I leave you the thread in Source(s).): The steel used for crane hooks are based on the application. For cold temp. use you'll need LCC or low temp carbon steel (requiring Charpy Impact values of 15 foot pounds at - 25 degrees F. The materials used can be either cast ASTM A148, or 9060, or A487 4B or a forged 4140 material. All have the properties in the ASTM specs (see specs on line . com). All of these specs have specific heat treats that are part of the individual specs.
Q: What are the requirements for jack up and plus section of jack up tower crane?
Ask you experts on the construction site of self lifting tower cranes how to install?. Is it like lifting a jack up of a car jack and hanging it in the middle when it's empty?
Q: Like I know he's the head gamemaker, but i mean seriously, madge is MUCH more important than him. i know he let k/p live, but still......madge did more than him?
(Well Seneca Crane plays a big part in Mockingjay (Book 3). He's also the one that saves Katniss in the end of Catching Fire (Book 2). If you haven't read the last 2 books yet I would seriously recommend it before you see the movie. But yeah I'M SO EXCITED FOR THE MOVIE! XD) WAIT! Sorry scratch that. Seneca Crane was executed for letting both Peeta and Katniss live. Yeah that's right. Don't listen to what I wrote above. It's late and I'm tired... XD

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