YONGMAO ST80/116 tower crane

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Product Description:

Tower Crane Model Type:Topkit

Max. Lifting Capacity:64/50/40T

Tip load:10.77/11.6/11.6T

Arm Length:80M

Independent Height:72.9M


Founded in the year of 1996, Yongmao is one of the key suppliers specialized in manufacturing construction machinery and engineering equipment.

We currently offer a variety of tower cranes which are broadly classified under the Topless STT series, the ST series, the Luffing STL series and the Derrick QD series, as well as crawler cranes and modified vehicles.

Yongmao tower cranes have not only been working for various domestic projects like hydroelectric power plants, nuclear power plants, shipyard, wharf, bridge, aerospace etc. but also acting in numerous construction projects all over the world.

Yongmao appreciates the reliance and confidence given by its valuable users all over the world and feels very proud of its ability and capability to contribute value added services to its users both at home and abroad.

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Q:National standards for tower cranes
GB/T 5031-2008 GB 5144-2006 tower crane safety code for tower crane safety GB mechanical and electrical equipment thirty-second 5226.2-2002 mechanical parts: requirements for hoisting machines GB 5802-1986 lifting short chain hoists and other lifting equipment for the T (8) test specification level calibration chain GB 5905-1986 hoisting machine test code and procedures GB/T 5905-2011 crane and GB/T program 5972-1986 lifting wire rope for examination and discard utility specification GB/T 5972-2006 crane wire rope inspection and scrap utility specification GB/T 5972-2009 crane wire rope maintenance, maintenance, installation, inspection and disposal GB/T 5973-1986 wire rope with wedge joint GB/T 5973-2006 wire rope with wedge joint
Q:What is the difference between a jack up tower crane and a fixed tower crane?
Tower cranes, because there is no running mechanism, so tower crane can not do any movement. Fixed tower crane can be divided into the tower height invariant and Jack up. That is, the jack up tower crane is a kind of fixed tower crane.
Q:What measures should be taken to make tower cranes stable?
Increase deadweight and weight.Crane wire rope is phosphate coated steel wire, galvanized steel wire, stainless steel wire rope or coated steel wire rope, the use of atmospheric environment, patented technology to produce manganese phosphating coating of steel wire rope has the longest lifespan, heavy corrosion environment optimization of hot galvanized wire rope - double coating phosphating, phosphating coating to improve the wear resistance and corrosion resistance of steel wire that is not easy to wear and corrosion resistance is to improve the working life of the plain steel wire rope will be completely eliminated.
Q:Emergency treatment of interrupted electricity during lifting of tower crane
When the power supply fails, you should first remove the things that are stuck in the gear!
Q:What are the components of a tower crane? What are its main technical parameters? What is lifting torque?
Part: foundation, tower, wall unit, excessive section, lifting mechanism, rotating mechanism, lifting mechanism, the lifting arm, a balance arm, electrical control, safety protection device etc..Main technical parameters: maximum lifting weight, amplitude and maximum amplitudeLifting torque = magnitude X maximum amplitude lifting
Q:Which is the main basis for the disassembly and assembly process planning of tower cranes?
Before the installation and disassembly of 2.0.10 tower cranes, special construction plans shall be worked out to guide operators to perform installation and disassembly operations. The special construction plan shall be prepared according to the actual conditions of the product specifications and the working site of the tower crane, and shall comply with the requirements of the relevant laws, regulations and standards. The special construction plan shall be examined and approved by the technical, safety and equipment departments of the unit, and approved by the technical person in charge, and shall be approved by the supervision unit.2
Q:What kind of bodies are tower cranes made of?
Two. The metal structure of tower craneThe metal structure of tower crane is mainly composed of underframe, tower body, jacket, upper and lower support, suspension arm, balance arm, tower top and other main components.Metal structure is the framework of tower crane, which bears the deadweight of crane and all kinds of external loads during operation.Three. Power unit and control systemThe power unit is the power source of the crane, and the power source of the tower crane is an electric motor with an external power supply.The control system includes controls and safety devices. Control device for tower crane is composed of a linkage control console, distribution box, resistor box components, the safety device is mainly composed of height limiter, amplitude limiter, lifting weight limiter, moment limiter, slewing limiter etc..Through the control system, the movement characteristic of the crane can be changed, so as to realize the starting, speed regulation, modification, braking and stopping of each mechanism, so as to achieve various actions required by the crane operation.
Q:The special equipment specified by the state is a periodical inspection cycle, wherein the crane is carried out every many years
Special equipment including boilers and pressure vessels (including gas cylinders), pressure piping, elevator, crane, field (factory) in special vehicles, large recreation facilities, passenger ropeway, regular inspection period of their different. The periodic inspection period of hoisting machinery is usually two years.
Q:What are the main parameters of a tower crane?
The main parameters of tower crane are:1, rated lifting torque. Lifting torque is the most comprehensive reflection of tower crane performance because the lifting torque itself is the product of the two parameters of magnitude and weight. The lifting moment is the product of the lifting and the amplitude.2, lifting range. The lifting range is also referred to as the radius of gyration or the radius of work. It refers to the horizontal distance from the center of the tower crane to the center line of the hook. The range contains two parameters of maximum amplitude and minimum amplitude.3. Rated lifting capacity. Rated lifting capacity refers to the weight of a crane under different working conditions. In general, the lifting capacity and the maximum lifting weight are marked in the main performance parameters, and the rated weights of other states are determined by their characteristic curves.4, maximum lifting height. For boom type tower cranes, the maximum lifting height according to the boom of the elevation and the tower height is different.
Q:Tower crane four limit, two insurance, two insurance what is that?
Four limit: torque, ultra high, variable amplitude, walking limit device. Two insurance: hook insurance and reel safety device.

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