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 Luffing 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, Hongda tower crane adopted lots of advanced mechanism self-developed by Hongda, to keep the security of the tower crane and convenient operation, such as unique double tighten mechanism on luffing steel cable, anti-break mechanism on sliding vehicle, anti-drop<o:p>
Tower Crane Model:QTZ80(TC5513)
Free Standing Height/Max. Height:45m/150m
Jib Length :3---55m
Mast Section/Material: Square Tube 135×135×12/Q345B
Size of Mast Section, L×W×H: 1835×1835×2500
Collar Ties Situation: Distance between first collar tie and the ground 35000mm
Other Distance 25000mm
Suspension Height no more than 25m
Balanced Weight /Jib Length: 16.32t/55m
Total Power: 46.2Kw
Basic Parameters:
Mechanical Factor |
Hoisting Mechanism |
M5 |
Slewing Mechanism |
M4 |
Trolleying Mechanism |
M4 |
Hoisting Mechanism |
Motor |
Model |
YZRDW250M1-4/8 |
Power(kW) |
30/30 |
Height Limiter |
Model |
FKDX-G |
Wire Steel Rope |
Spec. |
6X37-15-1770-I |
Max. Attraction (N) |
20000 |
Falls |
a=2 |
a=4 |
Lifting Speed(m/min) |
80.36 |
41.05 |
39.37 |
20.11 |
Rated Load(t) |
2 |
4 |
4 |
8 |
Min. Rate of Descend |
m/min |
≤7 |
Slewing Mechanism |
Motor |
Model |
YZR132M2-6 |
Power(kW) |
3.7×2 |
Rotating Speed(r/min) |
908 |
Reducer |
Model |
XX4-100.180 |
Drive Ratio |
180 |
Coupler |
Model |
YOX280A |
Rotating Pinion |
Modulus m |
12 |
Number of Teeth z |
16 |
Modification Coefficient |
+0.5 |
Rotating Speed |
r/min |
0.64 |
(Continued)
Slewing Bearing |
Single row four-point contact ball slewing bearing |
Model |
011·45·1400 |
Modulus m |
12 |
Number of Teeth z |
131 |
Hydraulic Jacking Mechanism |
Motor |
Model |
Y132M-4B5 |
Power(kW) |
5.5 |
Rated Oil Cylinder Working Pressure |
Mpa |
25 |
Max. Jacking Force |
t |
50 |
Oil Cylinder Stroke |
mm |
1600 |
Locating Distance |
mm |
2070 |
Oil Cylinder Diameter |
mm |
φ160 |
Oil Cylinder Piston Diameter |
mm |
φ110 |
Jacking Speed |
m/min |
0.4 |
Trolleyinh Speed |
Motor |
Model |
YDEJ132S-4/8 |
Power(kW) |
4.5/3 |
Wire Steel Rope |
Spec. |
6×19-7.7-1550 |
Reducer |
Model |
BL22-43-3.3 |
Drive Ratio |
43 |
Trolleying Speed |
m/min |
44/22 |