QTZ63 PT 5210 Topless Tower Crane used for lift building material
Description of the Topless Tower Crane
a. This type Cranes do not have the “head” of conventional cranes.
b. They are well suited for heavy lifting as well as placement duties on the most challenging constructionsites.
c. They can be used in conjunction with other tower cranes at sites where space is confined.
d. Besides, they can also help you save time on other jobsite duties by easily moving materials from one place to another.
Specifications of the Topless Tower Crane
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Rated lifting moment (kN.m) |
630 |
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Type |
Flat top without head |
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Lifting height (m) |
Rope rate |
Freestanding stationary crane |
Anchored crane |
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|
α2 |
35 |
150 |
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α4 |
35 |
75 |
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Working radius (m) |
Max. working radius |
50 |
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Min. working radius |
3 |
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Max. lifting capacity (t) |
5 |
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Hoisting Mechanism |
Rope rate |
α2 |
α4 |
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Speed (m/min) |
70/35/7.0 |
35/17.5/3.5 |
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Lifting weight (t) |
1.25 |
2.5 |
2.5 |
5 |
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Power (kW) |
18/18/5 |
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Tolleying Mechanism |
Speed (m/min) |
0.7/0.35 |
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Power (kW) |
2*3.7 |
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Slewing Mechanism |
Speed (r/min) |
0.4 |
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Power (kW) |
4 |
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Obvious advantages of the Topless Tower Crane
On congested sites, without traditional cat hat. Additional Topless tower cranes can overlap each other adding only one mast section, thus keeping all tower cranes at lowest possible height, with correspondent costs saving in addition to minimization of mast sections, use of wall ties is often avoided.
Safety Devices of the Topless Tower Crane
1. 3 obstacle lights
2. Height limiter
3. Slewing limiter
4. Range/ trolley limiter
5. Weight limiter
6. Moment limiter
7. Anemometer and block box(optional)
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