6T topless tower crane / tower crane with competitive price

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6T topless tower crane / tower crane with competitive price

6T topless tower crane / tower crane with competitive price

 

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Q:How did the tower crane rise on the construction site? Fifteen
It's not a cable, it's a steel bar! Scaffolding
Q:Tower crane; command; gesture
8. the hook falls slightly: the arm extends to the side, front and bottom, with the angle of the body about 30 degrees, palm down, with the wrist as the axis, repeatedly swinging downward palm.9. hook horizontal move slightly: small arm toward the side of the natural extension, fingers together, palms outward, in the direction of the load should be running, repeat the slow horizontal movement.10., micro range: double arm bent, extended to one side, five fingers straight, palms relative, and the distance between the load and the distance to move.11. directions of landing: five fingers unbend, point out the position where the load should fall.12. stop: small arm horizontally placed in front of the chest, fingers outstretched, palms down, horizontal swing to the side.13. emergency stop: two small arm level placed in his fingers outstretched, palms downwards, while waving to the level of both sides.14. end of work: stretch your hands and fingers and cross over at the front of your forehead.
Q:What are the types of common tower cranes?
Tower crane, tower crane. Tower crane according to its different types, there are the following classification methods.(1) according to the structural typeThe fixed tower crane by connecting a fixed tower in the foundation or structure, tower crane lifting operation.Mobile tower crane: a tower crane with running device and can walk. According to the running device, it can be divided into rail type, tyre type and caterpillar type.
Q:How to distinguish self lifting tower crane with counterweight and lifting tower crane without counterweight
2 the tower crane without counterweight is mainly the city fast loading tower crane. It is characterized by the absence of balance arm, and it is impossible to have counterweightThe layman can not tell the can see the appearance, there are long steel structure before and after the weight of the tower body, and no weight of the tower body with only one steel structure (i.e. jib crane, structure)
Q:Can the tower crane personnel install the construction elevator?
First of all, it is certainly impossible to install the elevator, because the tower and elevator certificate is not the same
Q:What are the parts of a tower crane? What are their main functions?
Jacking frame: placing slewing mechanism, when lifting tower top, bearing the weight of tower crane balance arm, main arm and tower cap.Standard section: support the weight of tower crane itself and lift the weight of heavy load, and resist the overturning moment of tower crane.Institutions include the followingLifting mechanism: lifting heavy objects.Luffing mechanism: lifting the car to change the rotation center distance.: the upper part of the slewing mechanism of tower crane (including the main arm and balance arm and tower cap) around the rotation center of rotation.Lifting mechanism: tower crane lifting, the upper part of the tower crane elevated hydraulic power system.Walking mechanism: the crane can walk on the track.OtherDrivers’ RoomElectric boxLinkage tableA foundation bearing platform or trackOther safety devices
Q:What is the standard weight of a tower crane for 1.6*1.6*3 and 1.6*1.6*5m? Kg?
The standard weight of tower cranes for 1.6*1.6*3 and 1.6*1.6*5m is 500KG
Q:What are the safety devices for the horizontal arm self lifting tower cranes?
(3) the amplitude limiting device shall be equipped with a minimum amplitude limiter and a device for preventing the boom of the boom from rebounding after the luffing of the jib. The trolley must be equipped with a trolley switch and a terminal buffer. (4) rail clamping device and walking limit device; track type tower crane must be equipped with rail clamping device. A walking limit device shall be installed at the same time. (5) a crane with wind point at the root of the boom with a height of more than 50m shall be equipped with an anemometer at the top.
Q:Ask about the lift and transportation of the jack up tower crane
If it implements specialized subcontracting, it shall be organized by the subcontractor. Led by the security establishment or technician, audit professional and technical personnel to audit the Organization Department of the unit by unit technology, construction technology, safety, quality and other departments, and ultimately approved by the signature of the person in charge of enterprises (393 orders), and the general contractor technology are also responsible to approval.
Q:What are the basic parameters of a tower crane?
The basic parameters of a tower crane include the length of the crane itself, the weight of the crane as well as the weight of the counterweight! Tower crane lifting mechanism; slewing mechanism; luffing mechanism; motor power;...

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