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QTZ Series Construction Building Equipment Engineering Tower Crane
| 1.Safety Features |
• Overload protection: If the material is over the capacity, the crane will give a sharp warning for protection itself.
• Emergency brake: If the operation staff encounter some emergency situation, we could start the emergency brake system to protection the related treasure.
• Control Method: Room control or remote control to avoid any injury to the operation staff.
• Main lifting motor: with thermal protection and currency protection.
| 2.Technical Features |
• The crane boasts of multiple operation modes and wide application;The complete machine adopts internationally well-received beautiful shape;
• The crane features high working speed and excellent speed regulation performance. Stepless speed regulation by frequency control, the world's most advanced solution, is adopted for the trolleying mechanism and slewing mechanism, thus ensuring more stable and reliable operation ;
• The cab is independently installed externally with good vision and large inner space, thus offering a good working environment for operators;
• A variety of safety devices are equipped, which are all mechanical or mechatronic products that are applicable to severe working conditions, so as to ensure the tower crane's reliable operation.


| 3.What We Can Supply |
Standard model | Jib length | Tip load (ton) | Max.load (ton) | |
QTZ31.5 | 4208 | 42 | 0.8 | 3 |
4808 | 48m | 0.8 | 4 | |
QTZ50 | 5008 | 50m | 0.8 | 4 |
5010 | 50m | 1.0 | 4 | |
5010 | 50m | 1.0 | 5 | |
5013 | 50m | 1.0 | 6 | |
5610 | 56m | 1.0 | 6 | |
5513 | 55m | 1.3 | 6 | |
6010 | 60m | 1.0 | 6 | |
6010 | 60m | 1.0 | 6 or 8 | |
QTZ125 | 6015 | 60m | 1.5 | 8 or 10 |
QTZ160 | 6516 | 65m | 1.6 | 10 |
QTZ250 | 7030 | 70m | 3 | 12 |
QTZ250 | 7030 | 70m | 3 | 16 |
QTZ315 | 7040 | 70m | 4 | 16 |
QTZ315 | 7040 | 70m | 4 | 18 |
Q1: Are you a trading company or a factory?
A1: We are a trading company and have our own factory. We have both the price advantage of the factory and the thoughtful service of the trading company; and the advantage of taking responsibility.
Q2: Can you OEM production?
A2: Yes, we can customize the production according to the drawings.
Q3: How long is your delivery time?
A3: If the goods are in stock, usually 5-10 days. Or if the goods are not in stock, then 15-20 days, depending on the quantity.Always welcome you to visit China for ordering!
Q4: Do you test all your goods before delivery?
A4: Yes, we have 100% test before delivery.
Q5: Is it convenient to see visit your factory ?
A5: Yes,we welcome every customer to visit our company.
Q6: What is your steel material?
A6: Q345B,Q235B
If you are interested in the Tower Crane, please no hesitate to contact us with following parameters:
1.Max load capacity?
2.Tip load?
3.Jib length?
4.Hoist lifting height?

SYM Hoist&Tower Crane Equipment is the professional crane and lift platform manufacturer in China .
We design,manufacture,installation,repair ,maintenance, trade and export following products:
>>>Topkit Tower Cranes,Topless Tower Cranes,Building Hoists etc.
>>>Mast section,Fixing Angle,Cabin,Electrical Parts etc.
We are sure we will be your best choice .
![]() | |
![]() | The largest parts supplier and the most professional service |
| Cooperation with more than 10 famous suppliers,like YONGMAO,SANYO, Sichuan SCM,zoomlion,GJJ,BAODA,etc. | |
| More than 20 years’ experience on tower crane and passenger hoist parts. | |
| More than 50 experienced mechanical and electrical engineer. | |
| 100% Original tower crane and passenger hoist parts. | |
![]() | |
![]() | YEAR QUALITY WARRANTY |
| 22 YEAR EXPERIENCE SUPPLIER SPECIALIZE IN TOWER CRANES | |
| 24 HOUR SERVICE | |
| 100% ORIGINAL PARTS | |
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