Product Parameters
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NTP Luffing Boom-type Tower Crane |
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Parameter Model |
QTD80-6T |
QTD125A-8T |
QTD160-10T |
QTD160-12T |
QTD260-16T |
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Main material |
Q355B |
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Load (t) |
1.2 - 6 |
1.2 - 8 |
2.2 - 10 |
2.2 - 12 |
2.9 - 16 |
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Jib length |
45 |
50 |
55 |
55 |
60 |
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free standard height (m) |
36.56 |
36.56 |
32.73 |
49.48 |
49.81 |
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Max height of attached(m) |
159.56 |
198.56 |
250.48 |
250.48 |
250.81 |
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Mast section (m) |
1.6 × 1.6 × 3 |
1.6 × 1.6 × 3 |
1.6 × 1.6 × 3 |
2 × 2 × 3 |
2 × 2 × 3 |
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Number of masts (unit) |
9 |
9 |
9 |
12 |
12 |
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Motor Power (kw) |
Lifting mechanism |
22 |
30 |
45 |
55 |
75 |
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luffing mechanism |
22 |
30 |
37 |
37 |
63 |
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slewing mechanism |
2 × 95N.m |
2 × 95N.m |
2 × 5.5 |
2 × 5.5 |
3 × 3.7 |
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Speed |
Lifting mechanism |
2M,0~38~76 4M,0~19~38 |
2M,0~38~76 4M,0~19~38 |
2M,0~40~80 4M,0~20~40 |
2M,0~46~92 4M,0~23~46 |
2M,0~45~90 4M,0~22.5~45 |
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luffing mechanism |
15° ~ 85°, 2.4 min |
15° ~ 85°, 2.5 min |
15° ~ 85°, 2.8 min |
15°~85°,2.8 min |
15°~85°,2.5 min |
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slewing mechanism |
0 ~ 0.6 r/min |
0 ~ 0.6 r/min |
0 ~ 0.6 r/min |
0 ~ 0.6 r/min |
0 ~ 0.49 r/min |
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Length of wire rope(m) |
350 |
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(Take the 8T tower crane as an example)
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Project |
New Configuration |
Old Configuration |
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Lifting mechanism |
mechanism brand |
Jiu he |
self made |
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Lifting speed |
0～90 m/min |
0～90 m/min |
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FM range |
0～100 Hz |
0～55 Hz |
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structure type |
L type |
π type |
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Reducer |
Spiral bevel gear reducer |
Cylindrical gear soft tooth surface reducer |
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reel |
Double thick wire rope slot short thick reel |
Slender body |
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Features |
Wider speed range, higher efficiency, smoother transmission and low failure rate |
Wide speed range, high efficiency, stable transmission |
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Rotary mechanism assembly |
mechanism brand |
Jiu he |
self made |
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Swing speed |
0～0.64 r/min |
0～0.56 r/min |
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structure type |
Ear plate single axis + column anti-channeling positioning pin |
Parallel biaxial connection |
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Reducer |
Jiu he |
self made |
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Output shaft and pinion |
Integral |
Flat key connection |
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Features |
More compact structure, higher reliability and low failure rate |
Large structure |
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Luffing mechanism |
brand |
Jiu he |
self made |
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Luffing speed |
0～48 m/min |
0～38 m/min |
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structure type |
Horizontal |
Vertical |
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Motor |
4-pole electromagnetic brake frequency conversion motor |
6-pole electromagnetic brake ordinary motor |
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Reducer |
Hardened planetary reducer |
Worm gear reducer |
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Features |
Accurate positioning, high transmission efficiency, stable transmission, and low failure rate |
High transmission efficiency |
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Intelligent integrated cab
| Configuration | New Configuration | Old Configuration |
| Dimensions | 2580×1410×2196 | 2137×1200×2013 |
| Structure | Integrated design of cockpit, electrical cabin, and air conditioning | Independent cockpit, no electrical cabin |
| Linkage | Satisfy the basic operation performance of tower crane lifting, slewing and luffing | |
| Newly added: slewing auxiliary brake button, brake indicator, weathervane switch and indicator; lifting braking force detection switch and brake failure alarm; tower crane lifting and adding button, hook anti-sway switch, lifting slow in place switch, Power phase sequence detection indicator | None | |
| Seat | forward and backward adjustment | Fixed seat |
| Air condition | Midea 1P heating and cooling air conditioner | Additional configuration |
| Screen | Integrated screen | Multi-screen display |
| User-friendly configuration | Door locks, ceiling lights, 220V electrical sockets, wipers, insulated non-slip carpets, hooks, file bags, sun shades | Door locks, ceiling lights, 220V electrical sockets, wipers, insulated non-slip carpets |
The electronic control system has the following technical characteristics
1. Brake failure protection function:
when the mechanism generates abnormal speed (usually after the brake is braked), when the abnormal speed reaches a certain value, the inverter can detect the abnormality in the power-on mode. Under normal circumstances, the inverter will control the motor output Large torque stops the mechanism and outputs an alarm signal.
2. Anti-twist function:
The inverter has a built-in anti-twist function, which can reduce the twisting of the standard section of the tower body and thus reduce the probability of loosening the tightening screws, make the tower crane safer and more reliable, increase the life of the standard section and reduce safety accidents.
3. Constant power function:
The inverter has built-in automatic constant power control module, the inverter can determine the load size (cargo weight) well during acceleration, and automatically adjust the output frequency according to the load size, greatly improving the working efficiency of lifting equipment .
4. Anti-hanging function:
When the hook, lanyard or cargo of the hoisting mechanism of the crane hangs a heavy object during the upward movement, the inverter can output an alarm signal and give shutdown protection to avoid safety accidents.
5. Ant speed operation (ultra-low-speed full-load operation):
The hoisting mechanism can be operated at a low-speed full-load below 0.5 Hz, and as low as 0.1 Hz for some applications. When the driver selects “slow speed”, the driver will then operate the lifting master handle, and the running speed at this time is 1% of the full-load running speed.
6. Smooth lifting function:
The inverter has a built-in smooth lifting function, which does not require the operator to jog to pre-tension the wire rope. It can be lifted at full speed. The inverter will automatically reduce the speed when the load increases to tension the wire rope, and then accelerate the lifting.
Features Of Integrated Cab
Introduction Of Other Functions
1. The side sliding window is humanized, and the sunscreen is added;
2. A coat hook is added inside the cab for the operator of the tower crane;
3. Add a file box inside the cab for the tower operator to place some drawings and documents daily;
1. Outer cage-type
● The standard sections of tower are installed and dismantled integrally, easy for connection, and safe and reliable in operation.
● The tower crane can lift up and down quickly.
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No. |
Name |
No. |
Name |
No. |
Name |
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1 |
Embedded leg |
10 |
Lifting capacity limiter |
19 |
Tumtable assembly |
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2 |
First section |
11 |
Lower slewing support frame |
20 |
Torque limiter |
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3 |
Mast section |
12 |
Slewing support |
21 |
Electrical system |
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4 |
Lower jacking cross beam |
13 |
Slewing mechanism |
22 |
Operating room |
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5 |
Hydraulic jacking device |
14 |
Propeller strut |
23 |
Traveling cable system |
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6 |
Outer cage |
15 |
Counter weight |
24 |
Jib |
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7 |
Introduction trolley |
16 |
Counter weight traveling mechanism |
25 |
Balance beam platform |
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8 |
Translional section |
17 |
traveling mechanism |
26 |
Wire rope for maintenance |
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9 |
Lifting hook |
18 |
Hoisting winch |
27 |
Counter weight traveling and traction device |
2.Internal climbing-type
● The tower crane is installed inside the building to climb upward with the aid of the building.
● The crane requires no foundation, no additional attachments and standard sections, and low investment, and has advantages such as wider construction coverage and higher working efficiency.
● An internal climbing-type tower crane can be changed to an external attaching-type one, and the cost for change is low.
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Type |
Tower combination |
Maximum combination height (same as the fixed type) |
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1.6×1.5m special section |
QTD160.04 standard section (3m) |
QTD160.24 (integral section) |
H1 (to the jib hinge point) |
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QTD160 1.6×1.6 |
1 |
6 |
1 |
30 (50m jib) |
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7 |
30 (40-45m jib) |
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8 |
30 (30-35m jib) |
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