Topless Tower Crane China Construction Qtz50 (PT4810)
Topless Tower Crane (QTZ50P(PT4810))
The tower crane is horizontal arm support, trolleying, top slewing and hydraulic jacking tower crane. Its jib length is 48m, free standing height is 30m, max. Attached height is 120m (2 falls).
Self-weight of the crane(without balanced weight and anchors) is 21.41t, total capacity of whole crane is 25.1 Kw. Advanced parameters, stable performance, good looking, excellent quality, simple structure, equipped with advanced safety devices, simple maintenance and competitive price make MLP4810 tower crane be popular in small and medium construction enterprises.
1 Hoisting Mechanism <o:p>
Three-gear speed modulation by electrical motor or frequency conversion, giant winch. <o:p>
2 Rotation Mechanism
Speed modulation with frequency conversion, stable break, accurate position, outstanding on performance and operation all around the world. <o:p>
3 Lifting Mechanism
Speed modulation with frequency conversion, less concussion, stable operation. <o:p>
4 Control System
PLC control, auto diagnosis on electric malfunction, corresponding alarm on light and sound, key components adopting international top brand product.<o:p>
5 Security & Protection Mechanism
Besides security mechanism usually used in domestic tower crane adopted,MingWei tower crane adopted lots of advanced mechanism self-developed by MingWei, to keep the security of the tower crane and convenient operation, such as unique double tighten mechanism on lifting steel cable, anti-break mechanism on sliding vehicle, anti-drop<o:p>
Max. Height: 120m.
max. Load moment:540 KN. M
Material of mast section: All mast sections are manganese Q345B, ∠160×12 angle steel; Jib is Q345B.
Max. Load: 4t
Tip load: 1t
Jib length: 48m
Mast section: 1.618*1.618*2.5m
Free standing height: 30m
Max. Height: 120m.
max. Load moment:540 KN. M
Material of mast section: All mast sections are manganese Q345B, ∠160×12 angle steel; Jib is Q345B.
Advantage of Mingwei Tower Crane
1.We adopt Robot automatic welding system, it improves welding accuracy and work efficiency.
2. We adopts the word firstclass Automatic impeller blasting and spraying assembly line;
3. 6m*12 CNC plasma cutting machine, not only quick cutting speed, but also smooth cutting surface, and small thermal deformation.
4. Electric device. Use international well-known manufacturers' electrical products, such as Schneider contactor.
5. equipped with complete set of safety devices,which can guarantee the safe and high efficient operation of the equipment. Including lifting height limiter, dolly radius limiter, load moment limiter, weight limiter, circumgyrating limiter, etc.
6. Ceritificated with CE,ISO9001-2000 and Manufacture License of Special Equipment People's Republic of China.
7. Professional manufacture and 20 years production experience.With reliable quality, advanced technology, reasonable price
8. Mingwei tower crane expands the international market actively,and has successfully exported to Saudi Arabia, Qatar, India, Vietnam, Iran, UAE, Costa Rica, Nigeria, Georgia, and so on. which has become foreign trade long-term cooperation.
9. Insure strictly quality examination before shipment and timely delivery.
If you want to buy tower crane,and find china tower crane dealer and tower crane seller, Shandong Mingwei is you best selected. Welcome for your inquiry. We will supply the high quality tower crane of reasonable price. Sincerely welcome your inquiry to our products!
Jib
m |
Fall |
R(Cmax)
m |
C(Cmax)
t |
18 |
22 |
26 |
30 |
34 |
38 |
42 |
46 |
48 |
50 |
| 50 |
IV |
10.8 |
4 |
2.34 |
1.89 |
1.57 |
1.34 |
1.17 |
1.03 |
1.02 |
1.00 |
0.99 |
0.98 |
| II |
25.0 |
2 |
2 |
1.91 |
1.59 |
1.36 |
1.19 |
1.05 |
1.04 |
1.02 |
1.01 |
1.00 |
| 50 |
IV |
10.8 |
4 |
2.34 |
1.89 |
1.57 |
1.34 |
1.17 |
1.03 |
0.92 |
0.82 |
0.78 |
|
| II |
20.9 |
2 |
2 |
1.90 |
1.58 |
1.35 |
1.18 |
1.04 |
0.93 |
0.83 |
0.79 |
|
| 48 |
IV |
10.8 |
4 |
2.34 |
1.89 |
1.57 |
1.34 |
1.17 |
1.03 |
1.01 |
1.00 |
0.98 |
|
|
II |
20.9 |
2 |
2 |
1.89 |
1.58 |
1.35 |
1.18 |
1.04 |
1.02 |
1.01 |
1.00 |
|
Mechanism characteristics
| Hoisting |
|
|
|
|
Motor(KW) |
|
|
m/min |
32.14/15.60/3.5 |
65.14/32.57/7.0 |
15/15/4 |
400m |
|
t |
2/4 |
1/2 |
|
|
| Trolleying |
|
m/min |
38.6/25.2 |
3.7 |
|
| Slewing |
|
R/min |
0.70/0.35 |
4 |
|
| Jacking-up |
|
m/min |
0.4 |
|
|
| Power-supply |
380V/50HZ 440V/60HZ |
| Power capacity |
25.82 |
Audited Supplier 
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