1 Hoisting Mechanism
Three-gear speed modulation by electrical motor or frequency conversion, giant winch.
2 Rotation Mechanism
Speed modulation with frequency conversion, stable break, accurate position, outstanding on performance and operation all around the world.
3 Lifting Mechanism
Speed modulation with frequency conversion, less concussion, stable operation.
4 Control System
PLC control, auto diagnosis on electric malfunction, corresponding alarm on light and sound, key components adopting international top brand product.
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
Tower Crane Model:QTZ125(TC6515)
Free Standing Height/Max. Height:50m/150m
Jib Length :3---65m
Mast Section/Material:∠125×125×12 /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: 22.5t/65m.20.4t/61m.17.7t/55m
Total Power :62Kw
Basic Parameters:
Slewing Bearing
Hydraulic Jacking Mechanism
Trolleying Mechanism
Mechanical Factor | Hoisting Mechanism | M5 | |||
Slewing Mechanism | M4 | ||||
Trolleying Mechanism | M4 | ||||
Hoisting Mechanism | Motor | Model | YZRDW250M-4/8 | ||
Power(kW) | 37/37 | ||||
Height Limiter | Model | FKDX-G | |||
Wire Steel Rope | Specification | 6X37-16-1770-Ⅰ | |||
Max. Attraction (N) | 25000 | ||||
Falls | a=2 | a=4 | |||
Hoisting Speed(m/min) | 80 | 40 | 40 | 20 | |
Rated Load(t) | 2.5 | 5 | 5 | 10 | |
Min. Rate of Descent | m/min | ≤5 | |||
Slewing Mechanism | Motor | Model | YZR160M1-6 | ||
Power(kW) | 5.5×2 | ||||
Rotating Speed(r/min) | 908 | ||||
Reducer | Model | XX4-120AI | |||
Drive Ratio | 195 | ||||
Coupler | Model | YOX280A | |||
Rotating Pinion | Modulus m | 12 | |||
Number of Teeth z | 17 | ||||
Modification coefficient | ＋0.5 | ||||
Rotating Speed | r/min | 0.61 | |||
| Single row four-point contact ball slewing bearing | Model | 011·45·1400 | |||
Modulus m | 12 | ||||
Number of Teeth z | 131 | ||||
Modification coefficient | ＋0.5 | ||||
| Motor | Model | Y132M2-4 | |||
Power(kW) | 7.5 | ||||
Rated Oil Cylinder Working Pressure | Mpa | 25 | |||
Max. Jacking Force | t | 63 | |||
Oil Cylinder Stroke | mm | 1600 | |||
Locating Distance | mm | 2100 | |||
Oil Cylinder Diameter | mm | φ180 | |||
Oil Cylinder Piston Diameter | mm | φ125 | |||
Jacking Speed | m/min | 0.4 | |||
| Motor | Model | YZTDE180M-4/8/24 | |||
Power(kW) | 5/3.7/1.1 | ||||
Wire Steel Rope | Specification | 6×19-9.3-1550 | |||
Reducer | Model | XX3-14.40 | |||
Drive Ratio | 39.7 | ||||
Trolleying Speed | m/min | 58.6/29.3/8.79 | |||
