Sinoway Industrial (Shanghai) Co., Ltd.
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Main Specifications of Tower Crane:
| Technical performance | QTZ 125 Name |
Unit | Parameter | |||||||
| Load moment | Kn.m | 1250 | ||||||||
| Max. load weight | t | 8 | ||||||||
| Hoisting height(free mode) | m | 52 | ||||||||
| Hoisting height(attached mode) | m | 200 | ||||||||
| Slewing speed | m/min | 0.6 | ||||||||
| Radius changing speed | m/min | 60/30/9.5 | ||||||||
| Climbing speed | m/min | 0.4 | ||||||||
| Hoisting speed | r/min | 50/100 | ||||||||
| Min. load-lowering speed | m/min | 4 | ||||||||
| Outline dimension | From jib end to slewing center | m | 51.4 | 56.4 | 61.4 | |||||
| From counter jib end to slewing center | m | 14.2 | ||||||||
| Counter weight | kg | 16100 | 17600 | 19100 | ||||||
| Electrical motor power | kw | 44.8 | ||||||||
| Max. working wind pressure | N/m2 | 250 | ||||||||
| Non-work wind pressure | N/m2 | 800 | ||||||||
| Permitted working temperature | ℃ | -20～+40 | ||||||||
| Mechanism load ratio | Hoisting mechanism | M5 | ||||||||
| Slewing mechanism | M4 | |||||||||
| Towing mechanism | M4 | |||||||||
| Hoisting mechanism | Electrical motor | Model | YZDW250-8/4 | |||||||
| Output(kW) | 37/37 | |||||||||
| Rotation speed(r/min) | 716/1400 | |||||||||
| Reducer | Central distance(mm) | 600 | ||||||||
| Transmission ratio(i) | 16 | |||||||||
| Steel cable | Configuration | 6*19W-14.5-170-I polished- right-twisted |
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| Max. traction(N) | 20000 | |||||||||
| Drum | Cable capacity(m) | 480 | ||||||||
| Layers | 4 | |||||||||
| Ratio | a=2 | a=4 | ||||||||
| Load weight(t) | 3 | 3 | 1.5 | 6 | 6 | 3 | ||||
| Hoisting speed (m/min) | 8.5 | 40 | 80 | 4.25 | 20 | 40 | ||||
| Slewing mechanism | Electrical motor | Model | YZR132M2-6 | |||||||
| Output(Kw) | 3.7*2 | |||||||||
| Rotation speed (r/min) | 908 | |||||||||
| Reducer | Model | XX4-100-195C-001 | ||||||||
| Transmission ratio (i) | 195 | |||||||||
| Fluid coupling | Model | YOX-280A | ||||||||
| Output gear parameter | Modulus (m) | 12 | ||||||||
| Tooth quantity(Z) | 17 | |||||||||
| modification coefficient (X) | 0.5 | |||||||||
| Slewing ring | One line, 4 points touching, ball mode slewing bearing | Model | 011.45.1400 | |||||||
| Modulus(m) | 12 | |||||||||
| Tooth quantity(Z) | 133 | |||||||||
| Hydraulic system | Model | QT80-1 | ||||||||
| Electrical motor | Model | Y132M-4B5 | ||||||||
| Output(kW) | 5.5 | |||||||||
| Working pressure(MPa) | 25 | |||||||||
| Elevating cylinder | Model | YG160/110*1600 | ||||||||
| Stroke(mm) | 1600 | |||||||||
| Install distance(mm) | 2100 | |||||||||
| Cylinder diameter(mm) | 160 | |||||||||
| Diameter(mm) | 110 | |||||||||
| Max. elevating force(t) | 50 | |||||||||
| Radius-changing mechanism | Electrical motor | Model | BF120-4/8/24 | |||||||
| Output(kW) | 5/2.5/1 | |||||||||
| Rotation speed(r/min) | 1370/700/200 | |||||||||
| Steel cable speed | Low speed(m/min) | 9.5 | ||||||||
| Medium speed(m/min) | 30 | |||||||||
| High speed(m/min) | 60 | |||||||||
| Electromagnetic break | Working pressure | 24V.D.C | ||||||||
| Steel cable | Model | |||||||||
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