JL7050 Topkit Tower crane for construction site

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Description of  TOWER CRANE JL7050

1) JL7050 tower crane has competitive price and excellent quality, suitable for all kinds of construction project and can work under all kinds of work condition.

2) This kind of crane adopts standard section hydraulic lifting and connecting, and can decide the crane height according to the actual height of the building, and at the same time the lifting capacity will not be affected;

3) It has high working speed, good speed-adjusting performance, steady operation and high efficiency. Three-speed motor and mono-speed ratio decelerator are applied in the lifting struction, which enables heavy load low speed and light load high speed.

4) The crane has complete set of safety devices, which can guarantee the safe and high efficienct operation of the equipment. The machine is equipped with lifting height limiter, dolly range-change limiter, moment limiter, weight limiter, circumgyrating limiter, etc.

5)The machine has scientific layout and beautiful appearance. The operator's room is set independently on one side, with good vision field. It creates a good working environment for the operator

 

 

SPECIFICATION of  TOWER CRANE JL7034

  • Max. working range 70m, tip lifting weight 5T and Max. lifting weight 20T.

  • Hoisting mechanism fitted with three speed motor, stable braking and less shock when shifting.

  • Trolleying mechanism can provide two operation speeds.

  • Free standing height (m) 66

  • Max height with attachment (m) 302

  • Working range can be adjusted(m)70/65/60/52/45

  • Min working range(m)2.8

  • Max lifting capacity(t) 20

  • Tip load @ 70m(t)5.0


Packaging & Delivery of TC7050

40HQ container

25~30days after deposit










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Q:How do tower cranes rise?
Tower crane, or tower crane, commonly known as tower crane, originated in Europe in the early twentieth Century. It has been used for more than one hundred years, and plays an important role in transportation, logistics, construction and other fields. Since tower cranes look like a tower far away, the way they lift up has become a topic of interest. In fact, according to the functions of the crane can be divided into: foundation, tower, lifting, rotating, lifting, balancing arm, lifting arm, lifting trolley, tower, cab, variable part in building tower crane should first install base part. That is to determine the tower crane erection position, determine the principle to maximize the tower crane construction capacity, convenient tower crane entrance and exit and installation, disassembly. Then choose the right foundation type.
Q:What is the definition of lifting, slewing and luffing of tower cranes?
Rotary is cantilever tower crane tower crane rotary shaft winding;Is the hook shaft distance amplitude change;
Q:What is the scrap standard of tower crane hook?
The hook shall be scrapped at any time in the following circumstances:Crackle;The wear of the dangerous section is 10% of the original size;The opening ratio is increased by 10% than the original size;The twist of the hook is over 10 degrees;The dangerous section of the hook or the neck of the hook produces plastic deformation;The hook thread is corroded;When the hook bushing is worn at 50% of the original size, the bushing shall be replaced;The mandrel shall be replaced when the hook mandrel is worn at 5% of the original size. The American Standard can provide for your reference:1, hook hanging points in the effective area of cross sectional wear more than 10%, should be disabled and scrapped.2 any visible permanent deformation and cracks shall be disabled and scrapped.3, if the wear is in the same area in two directions, it should be controlled within 5%.4, any hook opening deformation is not greater than 5%, or in accordance with the manufacturer's guidelines to determine.5, hook bow hook (i.e. intermediate position hook C shape) wear amount should be less than 5%.
Q:What is the allowable range of vertical deviation for tower cranes?
Independent height 4/1000, attachment height 2/1000 under top wall!
Q:What are the main technical parameters of a tower crane?
Generally speaking, the main parameters of the tower crane are:Maximum amplitude unit MMaximum lifting height, unit MMaximum lifting torque unit KN.mMaximum lifting speed unit m/minMaximum lifting unit tRotational speed unit r/minVariable speed unit m/min or o/minWalking speed per unit m/minMotor power unit w......Please refer to the product manual.
Q:What are the types of cranes?
Two, crane according to the structure is divided into bridge crane and jib crane two categories. (1) traffic, metallurgy specialcrane and Longmen crane, cable crane is a crane (2) portal crane, tower crane, truck crane, crawler cranes, truck cranes, cantilever crane is a crane arm.
Q:What is the free height of a tower crane?
General small 40 tower, its free height is about 30 meters. The 63-80 tower is usually about 45 meters. The 125 tower is about 47-50 meters.
Q:Under what circumstances does a tower crane require third party testing?
New clothes, relocation or transformation should be examined by the quality and Technical Supervision Bureau
Q:Tower crane TC6013A-6-A2, what does "A-6-A2" mean later?
This is the old saying. The international standard is now used. For example, the QTZ100T.M lifting torque is 980KN.M (kn. Meters).The QTZ100 is similar to the lifting torque of the TC6013. But not the same model.
Q:Examples of filling and acceptance forms for tower cranes and examples of filling in.
3 no or no inspection items are completed". In the absence of such or part of the sub - item, it shall be drawn on its serial number".

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