YONGMAO STT403 tower crane

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Product Description:

INFO:Topless

LIFTIMG:18/20/24T

Tip load:2.56T

ARM LENGTH:80M

HEIGHT:79.6M


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:When the tower crane top height is more than meters
Circular of the Ministry of housing, urban and rural construction on Issuing the measures for the safety administration of sub hazardous and sub divisional projectsAnnex No. [2009]87 [Annex two]"More than a certain size of the risk of larger sub sub project scope."
Q:S930 M50 (M125/75) level jib tower crane about how much money
Do you want to see is that, generally is Sishijiwan
Q:What is the insulation resistance of tower crane?
Two. Safety regulations for tower cranes GB 5144 - 20068.1.3 tower crane metal structure, track, all electrical equipment metal shell, metal line pipe, safety lighting transformer, low voltage side should be reliable grounding, grounding resistance is not more than 4 ohms. Repeated earthing resistance is not greater than l0. The selection and installation of the earthing device shall comply with the relevant requirements of the electrical safety.The insulation resistance of the 8.1.7 main circuit and control circuit shall not be less than 0.5M ohm.
Q:Tower crane 4 how to change the rate of 2 magnification, how to change, say detailed points
There is a magnification pin on the hook group. When the magnification pin is removed, the pulley will automatically slide to the lifting trolley.
Q:Under what circumstances are winches used and under what circumstances tower cranes are used?
Tower crane hoisting hoist how to brake, driving forklift personnel must undergo professional training, through non emergency situations, can not turn sharp and slam the brakes. 3.3.9 in the chute when running on empty 1)
Q:What are the construction cranes? 50
Tower crane, crane, man goods elevator, lift, there are national standards
Q:Tower crane; command; gesture
1. prepare (note): arm extension, placed above the head, five fingers stretched out naturally, palm forward remain motionless.2. main hook: single hand natural fist, in the head, touch the head3. auxiliary hook: a hand clenched, small arm to immobile on the other hand, elbow, hand hand touch before.4. hook up: small arm to the side of the upper extension, five fingers natural extension, higher than the shoulder, with the wrist as the axis rotation.
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:The earthing resistance of tower crane shall not be greater than that of the tower crane
The lightning resistance of tower crane (tower crane) on the construction site shall be no more than 4 ohms.I. tower crane GB/T 5031--20085.5.5.9 lightning protectionIn order to avoid lightning stroke, the main structure of the tower crane, the motor frame and all the electrical equipment metal shell, wire metal protection tube should be reliable grounding, and its grounding resistance should be no more than 4 ohms. When multiple repetitive earthing is adopted, the grounding resistance shall be no more than 10 ohms.Two. Safety regulations for tower cranes GB 5144 - 20068.1.3 tower crane metal structure, track, all electrical equipment metal shell, metal line pipe, safety lighting transformer, low voltage side should be reliable grounding, grounding resistance is not more than 4 ohms. Repeated earthing resistance is not greater than l0. The selection and installation of the earthing device shall comply with the relevant requirements of the electrical safety.The insulation resistance of the 8.1.7 main circuit and control circuit shall not be less than 0.5M ohm.
Q:Tower crane driver simulation exam which website?
This also needs to imitate exam? When you go to the training, the teacher will read the outline.

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