Model:-
QTZ31.5(4075) Tower Crane
Hongda Heavy-Industry Machinery Manufacturing Co., Ltd. are professional tower crane manufacturer from China, with over 20 years experience of manfuacturing all kinds of tower crane. Our QTZ31.5(4075) Tower Crane adopt good quality material and advanced manufacture process, which guarantee the high-quality and safety of our QTZ31.5(4075) Tower Crane. Our QTZ31.5(4075) Tower Crane have passed the ISO9001 International Quality System Certification and the CE Certification. Our tower crane and other products are widely exported to Russia, India, Brazil, Ghana, Indonesia, Nigeria, Gambia, Kenya, and other countries, and win high reputation among our customers.
| Model | QTZ50 (TC5010) | QTZ40 (TC4708) (TC4510) | QTZ40A (TC4708) | QTZ40B (TC4708) | SF120L Luffing Tower Crane | QTZ31.5 (TC3883) (TC4075) (TC4264) |
| Max Working Radius (m) | 50 | 47/45 | 47 | 47 | 40 | 42/40/38 |
| Free Height (m) | 34 | 32.5 | 29 | 34 | 50 | 30 |
| Max Load (T) | 5 | 4 | 4 | 4 | 3 | 3 |
| Tip Load (T) | 1.0 | 0.8/1.0 | 0.8 | 0.8 | 0.83/0.75/0.64 | |
| Max Height (m) | 139 | 135 | 120 | 136 | 130 | 100 |
| Wall Ties for Max Height (sets) | 7 | 5 | 6 | 6 | 3 | 5 |
| Main Material Specs (mm) | Angle Steel 160*12 | Angle Steel 160*12 | Angle Steel 140*12 | Angle Steel 160*12 | Square Steel Tube 1352*10 | Angle Steel 125*10 |
| Mast Section Dimension (m) | 1.5*1.5*2.5 | 1.5*1.5*2.5 | 1.5*1.5*2.2 | 1.5*1.5*2.5 | 1.665*1.665*2.5 | 1.5*1.5*2.4 |
| Hoisting Speed (m/min) | 70/35/9 | 70/35/9 | 70/35/9 | 70/35/9 | 0-80 | 57.3/26.6/5.2 |
| Min Steady Falling Speed (m/min) | 4.5 | 4.5 | 4.5 | 4.5 | 3 | 5.2 |
| Slewing Speed (r/min) | 0-0.7 | 0-0.7 | 0-0.75 | 0-0.75 | 0.77 | 0-0.6 |
| Radius-changing Speed (m/min) | 40/20 | 40/20 | 40/20 | 40/20 | 50/11 | 40/20 |
| Jacking-up Speed (m/min) | 0.5 | 0.5 | 0.5 | 0.5 | 0.6 | 0.7 |
| Total Motor Power (kw) | 21.1 | 21.1 | 21.1 | 21.1 | 64 | 20.7 |
| Independent Structure Weight (kg) | 25522 | 24539 | 21021 | 22780 | 45100 | 18961 |
| Counter Weight (T) | 8.12 | 8.11 | 8.10 | 8.30 | 12.0 | 5.2 |
1 Hoisting Mechanism
Three-gear speed modulation by electrical motor or frequency conversion, giant winch.
2 Rotation Mechanism
Speed modulation with frequency conversion, stable break, accurate position, outstanding on performance and operation all around the world.
3 Luffing Mechanism
Speed modulation with frequency conversion, less concussion, stable operation.
4 Control System
PLC control, auto diagnosis on electric malfunction, corresponding alarm on light and sound, key components adopting international top brand product.
5 Security & Protection Mechanism
Besides security mechanism usually used in domestic tower crane adopted, Hongda tower crane adopted lots of advanced mechanism self-developed by Hongda, to keep the security of the tower crane and convenient operation, such as unique double tighten mechanism on luffing steel cable, anti-break mechanism on sliding vehicle, anti-drop
mechanism on standard section, speedy link between rotary body, hoisting boom and balance boom.
6 Structure
Through advenced design, mechanical-electrical integration design, CAD supporting design, optimization design, modularization design, makes Hongda tower crane's steel structure haveing outstanding intensity, firmness and anti-fatigue capability, outstanding performance and reliability. With beautiful profile, it embodies the design standard of Hongda.
Shandong Hongda Heavy-Industry Machinery manufacturing high-quality QTZ31.5(4075) Tower Crane and other Tower Crane. Also, we can supply tower crane and other Heavy-Industry Machine OEM, ODM service according to your personal requirement. Our QTZ31.5(4075) Tower Crane,QTZ31.5(4264) is good in quality and competitive in price. Welcome to contact us for more details about QTZ31.5(4075) Tower Crane and other products.
