Shanghai Longji Construction Machinery Co., Ltd.
Shanghai Longji Construction Machinery Co., Ltd.
XCMG » XCMG Products » Cranes » Tower Crane

Tower Crane

QP5013 QP6015 QTZ125 QTZ 63-100

Description of Tower Crane:
The tower crane is a kind of stand-up crane that is equipped with a rotary crane jib. The machines normally have to installed near the construction site, and those construction material can be transferred to the right locations. However, when you operate the machine, you have to pay much attention for the long distance between the bases to that top is so high. Here is the guide when you process:
1. Operators should disciplined, and keep the construction security rules of high works.
2. Specially assigned staff can operate and test the power system and hydraulic system. While other professional ones should be arranged to conduce the lifting works.
3. All the important components, such as the wireline slings, snap rings, connecting bolts, etc.
4. If there is two towers working at the same time, make sure that the two towers should distance more than 5M.
5. The locating stud, the gap between idler pulleys, should be checked at a spacing interval.
6. Rotating top hat of the tower crane is forbidden during the lifting works.
7. Do remember to cut off power supply after the work.
8. After work, do make sure that the idler pulley is not contact with tower body, and all bolts are well fastened.
9. Earthing devices guarded. And tell the people that only certain staff can enter the working site .
10. when wind speed is more than 3rd level, this machine is not allow to use.
Type of Tower Crane:
QP5013, QP6015, QTZ125, QTZ 63-100

Specification of a typical one: QTZ125 Tower Crane

Load moment 1250Kn·m
Max. load weight 8t
Hoisting height(free mode) 52m
Hoisting height(attached mode) 200m
Slewing speed 0.6m/min
Radius changing speed 60/30/9.5m/min
Climbing speed 0.4m/min
Hoisting speed 50/100r/min
Min. load-lowering speed 4m/min
Outline dimension
From jib end to slewing center 51.4m,56.4m 61.4m
From counter jib end to slewing center 14.2m
Counter weight 16100kg, 17600kg, 19100kg
Electrical motor power 44.8kw
Max. working wind pressure 250N/m2
Non-work wind pressure 800N/m2
Permitted working temperature -20~ 40℃
Mechanism load ratio
Hoisting mechanism M5
Slewing mechanism M4
Towing mechanism M4
Electrical motor
Model YZDW250-8/4
Output 37/37kW
Rotation speed 716/1400r/min
Central distance(mm) 600
Transmission ratio(i) 16
Steel cable
Configuration 6*19W-14.5-170-I
Max. traction(N) 20000
Cable capacity(m) 480
Layers 4
Ratio a=2
Load weight 3t, 3t, 1.5t
Hoisting speed 8.5m/min, 40m/min, 80m/min
Ratio a=4
Load weight 6t, 6t, 3t
Hoisting speed 4.25m/min, 20m/min, 40m/min
Electrical motor
Model ZYR132M2-6
Output(Kw) 3.7*2
Rotation speed (r/min) 908
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
One line, 4 points touching, ball mode slewing bearing
Model 011.45.1400
Modulus(m) 12

Shanghai Longji Construction Machinery Company is a professional manufacturer and supplier of tower crane in China. We supply all kind of construction and engineering equipments like wheel loader, road rollers, crawler excavator, semi-trailer truck, water truck, dump truck, concrete mixer plants, truck cranes, tower crane, pavers and other products. As a One-Stop service supplier, Shanghai Longji is committed to offering high quality, reliable products and service on time, on delivery and on budget, so that to keep your project running smoothly and on schedule. We assemble our quality components according to the ISO quality management system, and all our products are all manufactured in strict accordance with ISO14001 environmental management standard. As the matter those advantages, our products are widely exported to Russia, Brazil, Congo, Ghana, Nigeria, Gambia, Kenya, and Tanzania and gain high reputation among our customers. We offer OEM service upon request. If you need tower crane, PLS don't hesitate to contacts us.

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