Potain Tower Crane--MC170A

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Product Description:

Model: MC170A (Fixed )
Hook Height:44 m
Jib Length: 60m
Mast Section:1.6m×1.6m×3 m
Max. Load:8t
Load at Jib End:1.4t
Hoisting Winch:45RCS20/50LVF20
Slewing Mechanism:RCV145
Trolley Winch:5D3V4
Nominal Power:54KVA 400V(+10%-10%)  50HZ

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Q:What is the insulation resistance of tower crane?
Three. Technical specification for temporary power safety on construction site JGJ 46-20055.4.2 within the construction site crane, derrick and Longmen machinery equipment, metal structure and steel scaffolding and under construction in construction projects, when lightning protection devices in adjacent buildings, structures and other facilities outside the protect zone of lightning arrester, lightning protection device should be installed in accordance with the provisions of.5.4.7 lightning protection electrical equipment machinery, connected to the PE line must repeat grounding at the same time, with a repeat of the mechanical and electrical equipment grounding and lightning protection grounding machines can share the same grounding body, but should be consistent with the repeated grounding resistance of grounding resistance requirements.The electrical equipment of 9.2.1 tower crane shall comply with the requirements of the current national standard "safety regulations for tower cranes" GB5144.9.2.2 tower cranes shall be subjected to repeated earthing and lightning protection grounding as specified in Clause 5.4.7 of this code. The earthing device of the track type tower crane shall comply with the following requirements:L the two ends of the rail are respectively provided with a grounding device;The joint of the 2 track is electrically connected, and the ends of the two tracks are electrically connected in the loop;3 long track every is not more than 30m and a grounding device.
Q:How much should the verticality of a tower crane be controlled? Thank you
No, the wind speed is not more than 3m/s, the independent state tower (or attached state highest attachment point above the tower axis) lateral verticality tolerance is 4/1000, the highest tower axis perpendicularity allowed attachment line below the point of difference is 2/1000.
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:What is the difference between crawler crane and tower crane?
There are many differencesThe crawler is used to transport items in a smaller range of motion (site)A tower, used for construction, stationary, or maneuvering along a railroad track.Crawler can easily reach the magnitude of 50 tons or moreMore than ten tons of tower are relatively commonTrack internal combustion engine, hydraulicTower type general power consumptionWait, wait......
Q:Does tower crane belong to special equipment?
Tower crane is a high-altitude operation, the type of work belongs to special types of work, equipment belongs to special equipment.
Q:What kind of bodies are tower cranes made of?
Tower crane is composed of three parts: working mechanism, metal structure and power unit, and control system. The composition and function of the three parts are outlined below.
Q:Minimum QTZ63 tower crane special electric box open for many A
Minimum QTZ63 tower crane special electric box for 100A circuit breaker. The maximum lifting weight is: 6T; lifting torque: 63kN; m; tower crane lifting height is 40m (independent), 140m (attachment); power: 31.7 kW; work range: 2---57m.
Q:How high the tower crane needs to be installed with the wall pole. How is it stipulated in the national standard?
Beyond the maximum independent height of the tower crane design, a wall attaching rod shall be installed
Q:How to choose tower crane in engineering, such as arm length and lifting weight?
First of all, your engineering structure is reinforced concrete Or steel? What's the weight of the lift? The lifting capacity of tower cranes should meet the needs. Generally speaking, steel structure hoisting, tower crane of the largest lifting weight and gravity moment should be large; hanging steel reinforcement of a smaller can.Secondly, the boom length should be covering the scope of construction (can also be arranged to meet several sets of crane lifting coverage). But in the 360 level luffing jib range, can not have obstacles (other cranes and buildings), and the boom and the distance between them (below) should be not less than 2m.Third, in the construction project is relatively high, the site is relatively small, you can mount the internal climbing tower crane. Building covers a large area, sometimes one can solve the problem. Of course, it is more troublesome to disassemble and lift inside, but the standard section used is less and the cost can be lower.
Q:There is no CAD map attached to embedded parts of tower crane?
What size do you want?. Each model is different. For example, the 5010 tower bolt embedded needs 24.

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