Sinoway Industrial (Shanghai) Co., Ltd.
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 |