The TIELISHI-brand QTZ series of tower cranes, ranging from QTZ31.5 to QTZ500 (Max Load=3T-25T), is among Hongda Group’s leading products. With their working radiuses varying from 30m to 80m, QTZ tower cranes are famous for their large operating ranges, varied working methods and wide uses. This series of tower cranes has a horizontal jib frame, a jib-trolley radius-changing mechanism and a hydraulic self-raising mechanism. It is original in design, reliable in operation and satisfactory in shape. Equipped with all necessary safety devices, these cranes show a good speed-control capacity, satisfactory operating stability and high work efficiency. They can be widely used for the construction of high-rise hotels, residential buildings, high-rise industrial buildings, large-span factory buildings and tower-like buildings like tall chimneys. The TIELISHI tower cranes have been awarded many honors like “SHANDONG FAMOUS BRAND”. “QUALITY FIRST” is not only a slogan; it is deeply rooted in the hearts of Hongda people. We also provide excellent after-sale service which will get rid of all your worries in the purchase of our products.
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.
II. Main Technical Parameters of Electric Tower Crane
Working Radius (m)
Free Height Under Hook (m)
Max Load (T)
Tip Load (T)
Max Height (m)
Wall Anchor Device for Max Height (sets)
Main Material Specs (mm)
Square Steel Tube from Angle Steel
Mast Section Dimension (m)
Hoisting Speed (m/min)
Min Steady Falling Speed (m/min)
Slewing Speed (r/min)
Radius-changing Speed (m/min)
Jacking-up Speed (m/min)
Embedded-type (Outrigger Stationary)
Total Motor Power (kw)
Independent Structure Weight (kg)
Counter Weight (T)
II.Relative Pictures of Electric Tower Crane
IV.Introduction to Our Company
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 12 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.
V.Our Services and FAQ
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
Free Erection & Commissioning Service
Operation Training Service
Spare Parts Supply ( all working life )
1.Is the price you offer is best price?
The price we offer is our normal price,We can discuss it according to your quantity and requirement.We will definitely try our best to provide you the best price as we can.
2.What's your Delivery Time?
It depends on your special requirements. Normally the delivery time is 25- 35 working days.
3.Do you want to know more about this company before you make a deal? Request an Assessment Report.
Supplier Assessment Reports are detailed on-line reports about the supplier's capabilities. It helps you get all the information you need to trade confidently with suppliers.
4.How long is your Warranty period?
12 months since delivery the machine .
More information can be get by contact with HONGDA Group.
You are warmly welcomed to visit our products! Our web page http://www.cnsdhongda.net
If you have any question, please feel free to contact us.