Gold Member Since 2010
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Jinan Hengsheng Engineering Machinery Co., Ltd.

Flat Top Tower Cranes, Crane, Construction Machinery manufacturer / supplier in China, offering Flat Top Tower Cranes for Sale by Hstowrcrane, Flat Top Factory Offere 4-12t Tower Crane, Construction Rack and Pinion 2t Hoist Cage Lift Elevator and so on.

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Flat Top Tower Cranes for Sale by Hstowrcrane

FOB Price: US $196,700 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $196,700/ Piece
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Port: Qingdao, China
Production Capacity: 5 Sets Per Week
Payment Terms: L/C, T/T, D/P

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Basic Info
  • Model NO.: HST 7528
  • Condition: New
  • Moving Type: Fixed
  • Color: Yellow, Red, Blue
  • Max. Height with Wall Tie Ins: 205m
  • Section Material: Angle Steel 200*22mm
  • Max. Lifting Capacity: 18 Ton
  • OEM Service: Offered
  • Tower Crane Type: Under Slewing Cranes
  • Main Girder Form: Single Girder
  • Trademark: HS
  • Specification: ISO9001, CE, SGS
  • HS Code: 84262000
  • Certification: CE, ISO9001: 2000
  • Installation: Assembled
  • Type: Tower Crane
  • Free Standing Height: 50m
  • Section Dimension: 2*2*3m
  • Jib Lenght: 75 M
  • Jib Tip Capacity: 2.8 Ton
  • Application: Construction Usage, Workshop Usage, Container Usage, Mineral Area Usage
  • Sling Type: Wire Rope
  • Power Source: Electric
  • Transport Package: Bare Into Containers, Spare Parts in Steel Box
  • Origin: China
Product Description
Flat Top Tower Cranes for Sale by HSTOWRCRANE
Flat Top Tower Cranes for Sale by Hstowrcrane

Flat top tower cranes
Flat top tower cranes don't have the "tops" of conventional cranes; 
they can be used in conjunction with other tower cranes at sites where space is confined or near the airports.
 
A working crane is a profitable crane, and Flat top tower cranes are built to work.
 
They're well suited for heavy lifting and placement duties on the most challenging jobsites. And they can also help you save time on other jobsite duties by easily moving materials from one area to another.
 
From the efficient setup that gets you working quickly to the variety of jobsite duties it can handle, you'll get great value from your Flat top tower crane every day.
 
The HST series includes crane models from 50 to 720 mt.
 
Features
 
1. Quality manufacturing designed for reliable performance hour after hour
2. Easy maintenance access and built-in safety features to keep downtime to a minimum
3. Ergonomic cabs provide the comfort required for long hours on the job


1.4  working mechanisms 
   
    Working mechanism include: lifting mechanism, slewing mechanism, trolley traveling mechanism and climbing mechanism.
 
1.  lifting mechanism
Lifting mechanism use AC asynchronous motor to control speed, it consist of variable frequency motor, plum coupling, reducer, drum shaft assembly, brake ,rack, etc.. Through frequency converter changing input power`s frequency to change lifting speed; when mains frequency is equal to or less than rated frequency, the lifting mechanism can lift rated load; when mains frequency is greater than rated frequency, with the rising of speed, the weight that lifting mechanism can load will decline. Lifting mechanism is always in braking position when it doesn't work. There a height limiter in the other side of dram shaft, the height sensor of safety monitoring system is connected with height limiter.
Main Performance and Technical Parameters of lifting mechanism
Mechanism Operation LevelM5
 Mechanism Utilization LevelT5
loading conditionL2
 lifting performanceMultiplying factora=2a=4
Lifting Capacity(t)4.59918
speed(m/min)
 
0~900~450~450~22.5
Steady slowest lowering speed (m/min):5
 
 motorYZTP280S1-4   75KW  
 reducerJQ08  ratio speed 41.75
Specification of wire ropeGB/T8918-2006  22NAT 35W×7-1870
 max Rope Capacity620m


2 trolley traveling mechanism
2. Trolley traveling mechanism is consist of variable frequency motor
Main Performance and Technical Parameters of trolley traveling mechanism
 mechanism type11JXF8
 changing speed13.5/42.5/75m/min
 motorYPWEF132L-4   11kW
Rope Capacity of Lifting Drum75m
Specification of wire ropeGB/T8918-1986 11NAT6×29Fi+FC1770ZS
 length of wire rope75m jib length:108/137m
traction9000N

 3. slewing mechanism
Slewing mechanism is driven by variable frequency motor; through Level 4 planetary reducer drives pinion, then pinion and slewing bearing gear engagement drives the upper crane to slewing. 
Main Performance and Technical Parameters of slewing mechanism
Mechanism Operation LevelM5
 Mechanism Utilization LevelT4
 loading conditionL3
 amount of slewing mechanism 2 sets
slewing speed0~0.85r/min
 motorYTLEJ132L-185-4B1(4B2)
reduction ratio183
 rated output torque14500N.m
 pinion m=12  z=15  x=+0.5


4climbing mechanism
Climbing mechanism depends on hydraulic cylinder, hydraulic pump station, high-pressure oil pipe and climbing beam that back of climbing frame to finish its work.

Main Performance and Technical Parameters of climbing mechanism
 working pressure28Mpa
 climbing speed0.4m/min
 motor parametersY2-160M-4  11kW 
 Oil cylinder diameter/piston diameter220/140mm
 min installation dimension of oil cylinder2170mm
oil cylinder Traveling distance1600mm
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