China ce passed 18t Topless Tower Crane Hst7052 for Sale
We started manufacturing tower cranes from the very year our firm founded in 2001. And now can offer tower cranes with a maximum lifting load form 2.5t to 16t, which is from QTG25, QTZ25, QTZ31.5, QTZ40, QTZ63, QTZ80, QTZ100, QTZ125, QTZ160 and QTZ260, to meet the demand of various kinds of customers in different construction works.
With climbing cage, our crane can change the height itself by adding and reducing its standard sections.
And the same tower crane can have different lengths of jib with different quantities of jib sections. We will offer the drawing of the same when the goods are delivered.
The pedestal can be fixed type of crossing beams and can also be with counterweight to save the space.
Our tower crane with drivers cabin with electric fans or air conditioners according to customers requirements.
For the safety, we can also offer indicator to show the load and height data of crane in service.

tech data of 7052
main technical parameters list  
 
1.4  working mechanisms 
   
    Working mechanism include: lifting mechanism, slewing mechanism, trolley traveling mechanism and climbing mechanism.
 
1.4.1  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. ( installation drawing as shown in figure A)
 
Main Performance and Technical Parameters of lifting mechanism 
1.4.2 trolley traveling mechanism
Main Performance and Technical Parameters of trolley traveling mechanism 
1.4.3 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.  
 

slewing mechanism figure
 
Main Performance and Technical Parameters of slewing mechanism 
1.4.4climbing 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.
 

climbing mechanism figure
 
 Main Performance and Technical Parameters of climbing mechanism 

Company information -- HSJJ

HSJJ is mainly engaged in producing and selling tower crane and elevator. tower crane (tower top type and flat top type)and construction elevator (single cage and double cage with common motor or vfd).

The company has more than 1200 staff, featuring abundant technical force, excellent manufacturing facilities and perfect detection method. The plant covers 255,000 square meters.
Our company has been granted with the GB/T19001-2000 ;ISO9001: 2000 Certificate of Conformity of Quality Management System, the People's Republic of China special equipment manufacturing license, CE, GOST and other certifications. Products have been exported to Russia, Mongolia, Moldova, Georgia, Turkey, Egypt, India, United Arab Emirates, Algeria, Angola, Mexico, Brazil and other countries, and have enjoyed good reputations from the users.

HSJJ will offer you machinery with first class technology and first class service for your trust and satisfaction.




BASIC INFORMATION
Product/Service (We Sell):  Tower crane, Constitution elevator, Concrete machine
Brands: HSJJ
Number of Employees: 201 - 500 People  

Factory Information
 Factory Size (Sq.meters): 300,000 square meters  
 Factory Location: Zhangqiu of Jinan City, Shandong Province,China  
 Number of Production Lines: 5  
 Number of R&D Staff: 11 - 20 People  
 Number of QC Staff: 5 - 10 People  
 Management Certification: ISO9001,SGS,CE Certification  
 Contract Manufacturing: OEM Service Offered  

1.CHARACTER
1.) Material
The steel of crane is from Chinese famous steel companies.
2. )Electrical mechanism
Elements for electrical system are Schneider.
3. )Hoist mechanism
Brake wheel adopts cast steel materials, surface quenching and external circular, control the beating degree strictly. At the same time, also carrying on balance tests. each hoisting mechanism is carrying on no-load, static load, dynamic load and so on, guarantee the reliability, safety and durableness.
4. )Ranging/Trolley mechanism
trolley mechanism with free maintenance planetary reducer and cone brake motor, is well-knit in structure, stable and powerful in trolley, high endurance and low failure rate.
5. )Slewing mechanism
Slewing motor adopts winding motor and hydraulic transmission.
6. )Operation device
Cabin with humanized design, is convenient and comfortable, facilitate for safe driving. It creates a good working environment for the operator.
7. )Safety devices
The crane has a complete set of safety devices: crane high limiter, weight limiter, moment limiter, circumventing limiter, etc.

FAQ
Q1: Can provide customized products?
A1: Yes.  We are hi-tech enterprise affiliated to China Academy of Building Research. We have a group of engineers, who have title of professor , senior engineer and engineer. We can give you special design as per the drawings of your building, helping you solve different problems faced in your projects.
 
Q2: Whether customized products takes a very long time to design and manufacture?
A2: Not exactly. Normally for us, some amendment in design to adapt your requirement will take one week. so even for your special project, it will be about 30-40 days delivery time.
 
Q3: What is the brand of your key components?
A3: Motor:xingxiang from Nantong,  Gearbox: xingxiang from Nantong,  Inverter: Zhengxian from Shenzhen and ABB or Schneider are all available.
 Other electrical components: Schneider or Siemens
 Automatic landing system: Weikong of Jinan for construction hoist
 
Q4: What kind of services you can provide?
A4: We are dealing with construction machinery for about 15 year. High quality is our advantage, and high technology is our core competency. We ensure that  all  the machine have been completely tested in our factory before delivery. We will give you one year warranty for complete machine. For probems caused by our production defect, we will provide you free services by sending skilled engineer there.

CERTIFICATE
We have passed the ISO9001 quality system and CE certification for our machine. Our factory audited by SGS.




PACKING INFO
1. Film wrapped into container by sea or truck by land.
2. steel box for spare parts




SHIPPING INFO
1. Send commissioning video to you before shipment;
2. By Sea for batch goods, for Port receiving;
3. Customers specifying freight forwarders or negotiable shipping methods!
4. Delivery Time: 5-20 days against advanced payment.

PAYMENT TERMS
1. Payment: T/T, Western Union, MoneyGram, PayPal; 30% deposits; 70% balance before delivery.
2. MOQ: 1 set.
3. Warranty :  Totally 12 months for the whole set machine from the very day machine installed and working well.

OUR SERVICE
1.) Providing timely delivery, standby engineers are ready to solve any problems
2.) Providing 12 (twelve only)months product warranty period,with ample spare parts
3.) Providing work site installation guidance and training of operation and maintenance