SJ TOWER CRANE QTZ40(TC4708)

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Tower crane TC4708 description

TC4708 tower crane is our company according to the design of tower crane"GB/T5031-2008" model of the tower crane.

1) work much, wide range of use, this machine has a fixed base and wall attachment type.

2) has high working speed, good performance of speed regulation, stable operation, high efficiency. Three speed motor and single speed ratio reducerused in lifting structure, so that the heavy load and low speed, light load speed.

3) crane configuration lifting height limiter, moment limiter, amplitude limiter,lifting weight limiter, slewing limiter, rotary, traction mechanism brake safety device, and trolley rope breaking resistant, anti broken shaft device, themachine is suitable for various different construction environment, ensure thework reliability of tower crane.

4) cab uses linkage Taiwan advanced operation of the mechanism of action of easy operation, simple repair.

Tower crane TC4708 technical parameters

The maximum working range of 46.8m, end weight and maximum take-off weight of 4T 0.8T

Mechanism is equipped with three speed synchronous motor brakingimpact small shift, smooth

Luffing mechanism can provide two kinds of speed.

Free height of 30 (m)

The maximum height of 120 (m)

The tunable 35 / 41 / 46.8 of the scope of work (M)

The minimum working distance (3 meters)

The maximum lifting capacity of 4 (T)

End load "(T) 0.8 (M)


The minimum working range of 3 (M)

The maximum lifting capacity of 4 (T)

End load "(T) 0.8 (M)


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Q:What are the components of a tower crane? What are its main technical parameters? What is lifting torque?
2 tower cranes (tower crane) referred to as tower cranes, also known as tower cranes, originated in Western europe. A revolving crane mounted on top of a tall tower. The working space is large, mainly used for the vertical and horizontal transportation of materials and the installation of building components during the building construction. It consists of three parts: metal structure, working mechanism and electrical system. The metal structure includes the tower, the boom and the base. The working mechanism has four parts, lifting, luffing, turning and walking. The electrical system consists of motors, controllers, power distribution cabinets, connecting lines, signals and lighting devices, etc..Has a good safety device 3, tower crane, such as lifting weight limiter, amplitude limiter, height limiter and load torque limiter limiting device, and travel limit switchestower lights wind instrument, wind clip rail device ladders athletic supporter circlewalkways and railings. The driver's cab is comfortable, easy to operate, with good vision and perfect communication facilities.
Q:What is the difference between a tower crane QTZ31.5 and a QTZ40?
the length of the arm is 42-48 meters; the elevation is 29-32 meters.
Q:How do i make an origami flapping crane?
You are asking for a lot but I have seen you request this a number of times, so I will do it...a sucker born. 1. Valley fold the paper in half so it makes a triangle. With the long side held away from you, valley fold the triangle in half again. 2. Lift the top triangle and valley fold it so that its top point meets its bottom point. Unfold the crease you have just made. Put your fingers inside the top triangle, open it up, and flatten it so it forms a square. Turn the paper over and fold and flatten the remaining triangle in the same way. 3. Make sure that the open ends of the paper are pointing down. Valley fold the top layer of both sides in to meet the centre crease. You will now have a kite shape. 4. Valley fold the top point of the kite down and crease well. Unfold the crease you have just made. 5. Open the sides of the kite by unfolding the flaps you made in Step 3. Lift the top layer of the kite's bottom point up so the paper bends at the crease you made in Step 4. Push the outside edges of the paper in to meet the centre line. Then flatten the figure so that you have a long diamond shape. 6. Turn the figure over and fold a kite shape on the remaining side as in Step 3. Repeat Steps 4 and 5 on this side. You will now have a two-sided long diamond. The bottom half of the diamond is split in two. 7. Valley fold the top layer of both bottom edges in to meet in the middle. Turn the figure over and repeat on the other side. 8. To make the crane's neck and tail, valley fold each half of the bottom section out to the sides. Crease well. 9. Unfold the right crease you just made and make an inside reverse fold. Repeat this step on the left side. 10.To form the head, fold down the end of the neck. Unfold this crease and inside reverse fold the head. 11.Hold one of the crane's wings in each hand. Blow hard into the opening on the underside of the figure and gently separate your hands. You crane will puff up and be ready to hang.
Q:What is the brand of ZOOMLION tower crane?
This is not very good answer, the United States originally used Tianshui 213, and then used the Japanese MITSUBISHI, used Schneider, LG, star power, Eaton.
Q:What prior education and skills are needed to become a Crane operator ?
idk
Q:is there such a thing as a giant crane fly?
Yes. Here in Southern Oregon (and in CA too) we have giant Califronia crane flies. They really do get that big, its not just a freak.
Q:What role does the tower crane torque limiter play?
The torque limiter has two kinds of electronic type and mechanical type, electronic type: can show the torque, radius and load, near the tower crane permit torque, there will be a warning signal, although easy to use, the working conditions of cutting has been greatly affected, but not very reliable, easy to damage, the maintenance of trouble. Mechanical type: Although there is no display and can not alarm, but the work of the letter, the structure is simple, not easy to damage, suitable for construction site conditions.
Q:What kind of white crane Kung fu styles are there?
Fujian White Crane is short stances, short hands and close range fighting system. The other white crane is said to be from Tibet but developed in Guang Dong, southern part of China, and Hong Kong. This style emphases on deep stances, long arm movements attacks. Both of them are great styles. Steak and Lobster. which one is the best to eat? Your pick!
Q:Why are the rescue workers in turkey not using cranes to remove the debris of the earthquake? ?
Firstly, it can be damnable hard to move cranes through rubble filled streets, even assuming if such things happen to be readily available. Secondly, as the mess beneath the rubble is bound to be unstable, moving stuff off from the top can cause collapses further down. That danger can be lessened by working more slowly and carefully. I dont belive it is unsafe, if they are meticulous. Your belief is all well and good, but is it based on actual experience?
Q:Origami Cranes, 999 or 1000?
It is susposed to be 1000 cranes. You string them in 10 sets of 10 cranes. [thats how I remember!]Can you send me your way of folding them? I can't find one that works right for me, they always turn out a little wrong. :[

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