US$ 20,000 - 30,000 MOQ: 1 Set
Key Specifications
Get Latest Price
Condition:
New
Rated Lifting Moment:
400kn.m
Max. Lifting Load:
4t
Payment & Shipping
Payment Methods:
Port of Shipment:
Tianjin
Delivery Detail:
Delivery time depends on order quantity.
Condition New
Rated Lifting Moment 400kn.m
Max. Lifting Load 4t
Place of Origin Beijing, China
Brand Name JinFeiTianHong
Model Number QTZ31.5

Tower crane

 

The tower crane is a combination of advanced technologies of the present day. It is equipped with a 

hydraulic self-raising mechanism and a frequency-converting slewing mechanism. 

The electric control system of the tower crane adopts the advanced “PLC + frequency converter” 

control mode of the present day, which has realized the stepless speed regulation and greatly 

improves the reliability, maneuverability and stability of the control system and the work efficiency of 

the tower crane.

 

The tower crane is equipped with all kinds of reliable safety devices, such as hoisting height limiter, 

slewing range limiter and multifunctional limiter to control the load moment, hoisting capacity and 

trolley traveling range. Its PLC (Programmable Logic Controller) unit can diagnose the cause of

breakdowns.

 

The use of worldfamous electric components such as OMRON, YASKAWA, Schneider (TE) and MEAN WELL greatly 

reduces the failure rate of the electric control system and improves the work efficiency of the users.

 

Besides, there are also electric safety devices like anemoscopes and obstacle lights and mechanical 

safety devices to prevent the breaking of trolley axles and wireropes.  

 

Model

QZT 31.5 (4264)

QZT 31.5 (4075)

QZT 31.5 (3883)

Jib Length (M)

42

40

38

Free Height (M)

30 (12 mast sections)

30 (12 mast sections)

30 (12 mast sections)

Max. Possible Height (M)

100

100

100

Max. Load (T)

3

3

3

Tip Load (T)

0.64

0.75

0.83

Wall-attached Devices for Max Height (sets)

5.

5

5

Main Material (mm)

125×125×10 (Angle Steel)

125×125×10 (Angle Steel)

125×125×10 (Angle Steel)

Mast Section Dimension (m)

1.5×1.5 ×2.4

1.5×1.5 ×2.4

1.5×1.5 ×2.4

 Hoisting Speed (a=2) (m/min)

57.3/26.6/5.2

57.3/26.6/5.2

57.3/26.6/5.2

Min. Stable Falling Speed (m/min)

5.2

5.2

5.2

Slewing Speed (r/min)

0-0.77

0-0.77

0-0.77

Radius-changing Speed (m/min)

21/42

21/42

21/42

Jacking-up Speed (m/min)

0.7

0.7

0.7

Total Motor Power (kw)

21.4

21.4

21.4

Power Supply

380V/50HZ

380V/50HZ

380V/50HZ

Weight of Independent Structure (T)

18.96

18.96

18.96

Counterweight (T)

5.2

5.2

5.2

Base Form

Cross-shaped beam, with slanting stay bars, without ballast

Cross-shaped beam, with slanting stay bars, without ballast

Cross-shaped beam, with slanting stay bars, without ballast

Containers Needed for Shipment (30m)

3 * 40’HC containers

3 * 40’HC containers

3 * 40’HC containers

building tower crane

building tower crane

 

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Business Type
Manufacturer, Trading Company
Year Established
2003
Factory Size
10,000-30,000 square meters
Total Employees
101 - 200 People

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