The tower crane is a combination of advanced technologies of the present day. 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. Its Safety Monitoring System (also known as Black Box) displays the data of working radiuses, heights, moments and weights.
The use of world-famous 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.
Specification of Tower Crane
Model
QTZ40A(4708)
Max Working Radius (m)
47
Free Height Under Hook (m)
29
(12 mast sections)
Max Load (T)
4
Tip Load (T)
0.8
Max Height Under Hook (m)
120
Wall Ties for Max Height (sets)
6
Main Material Specs (mm)
Angle Steel 140*140*12
Mast Section Dimension (m)
1.5*1.5*2.2
Hoisting Speed (m/min)
70/35/8
Min Steady Falling Speed (m/min)
4.5
Slewing Speed (r/min)
0-0.75
Radius-changing Speed (m/min)
50/25
Jacking-up Speed (m/min)
0.5
Total Motor Power (kw)
21.4
Independent Structure Weight (kg)
21.02
Counter Weight (T)
8.1
Detail Pictures of Tower Crane
About Us
Shandong Hongda Construction Machinery Group Co., Ltd., which is located in the beautiful city of Laiyang in China’s Shandong Province, is not only one of the largest industrial enterprise groups of China but also one of the key enterprises in China’s construction machinery industry. Hongda Group is a professional manufacturer of construction machinery for 29 years; Our total assets amount to about RMB 1.88 billion (US$300.8 million); Our annual sales income of the year 2011 reaches RMB2.5 billion (US$400 million); We have about 3,800 employees; Our company covers a gross area of more than 800,000 m2 and a total floor area of about 460,000 m2.
Our company has passed the ISO9001 International Quality System Certification, the CCC Certification (China Compulsory Certification) and the CE Certification. Our products have won the titles of “Shandong Famous Brand” and “Shandong Famous Trademark” in many consecutive years, and our company has been awarded many honors like “Provincial-level Civilized Enterprise”, “National-level High-tech Enterprise”, “National-level User-trusted Star Enterprise”, “National-level Contract-honoring and Promise-keeping Enterprise” and “National-level Credible and Law-abiding Enterprise”.
Our main products cover 13 series with more than 80 varieties, such as:
ENTERPRISE TENET: All for clients, all from clients.
ENTERPRISE GOAL: Try our best for perfectness.
BUSINESS PRINCIPLE: Focusing on people first, Doing business honestly, Sticking to win-win development firmly.
BUSINESS POLICY: Arming engineering machinery with high technology, Upgrading traditional industry with high quality, Promoting the updating of traditional industry with all our efforts.
CULTURE SPIRIT: Never complain, always look for a better way, always prepare to get a chance. Innovation is essential to the development of an enterprise and even a nation. Every one of HONGDA Group is an image ambassador of our enterprise, To be an upright person in all seriousness,to be a good worker without ostentation.
Our Services
Why Choose TLS?
Reply in first time
Arrange production in first time
Effect transportation in first time
Solve problem in first time
R&D Technical Support
We have a professional R&D team for research and development of new techniques and products. We can design and adjust the machines according to customers’ requests. Professional engineers, technical support on installation and training overseas are available.
Before Sale Service
Before sales, we provide our customers with professional solutions on Tower Crane according to customers' situations.
After Sale Service
Turn-Key Solutions
Free Erection & Commissioning Service
Operation Training Service
Spare Parts Supply ( all working life )
You are warmly welcomed to visit our products! Our web page //www.cnsdhongda.net
If you have any question, please feel free to contact us.
