NEW TOWER CRANE
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Product details description
QTZ400 (TC7050) tower crane is a heavy-duty top-kit horizontal jib tower crane with a rated load moment of 4000kN·m. Designed for high-rise buildings, large commercial complexes, precast construction projects, bridge engineering and large-scale infrastructure works, this 70m jib tower crane provides excellent lifting performance, stable operation and strong environmental adaptability. The maximum lifting capacity reaches 20 tons, and the tip load maintains 5 tons at a full 70-meter working radius, making it one of the most cost-effective large tower cranes for domestic and overseas construction projects.
This TC7050 tower crane supports fixed base, attached climbing and internal climbing installation methods. Equipped with full VFD frequency conversion control system and complete safety protection devices, the machine ensures precise positioning, smooth operation and high construction efficiency. All units are strictly factory tested and come with complete ISO and CE certification for global export.
Model: QTZ400 / TC7050
Rated Load Moment: 4000kN·m
Max Jib Length: 70m
Tip Load (70m): 5.0 ton
Max Lifting Capacity: 20 ton
Independent Height: 72.7m
Max Attached Height: 222.7m
Standard Section Size: 2450×2450mm
Control System: VFD frequency conversion + PLC intelligent control
Installation Type: Fixed / Attached / Internal Climbing
Certification: ISO9001, CE, Full factory inspection reports
The TC7050 tower crane features a 70-meter long jib and stable 5-ton tip lifting capacity, greatly improving working efficiency for large-area construction and precast component installation. Compared with conventional 60m jib cranes, the QTZ400 tower crane covers a larger construction range and reduces frequent machine relocation. It perfectly meets the heavy-load and long-radius lifting demands of high-rise and large-scale building projects.
The main structural components adopt Q355B high-strength steel with automatic robot welding technology. All key welding seams pass professional flaw detection to ensure structural stability and fatigue resistance. The whole machine adopts advanced electrostatic plastic spraying anti-corrosion treatment, effectively resisting corrosion from coastal humidity, strong wind and sand, and harsh outdoor working environments. With reliable structural design and interchangeable standard sections, the tower crane features long service life and low maintenance cost.
Equipped with full frequency conversion driving system for lifting, slewing and trolleying mechanisms, the QTZ400 TC7050 tower crane realizes smooth start and stop without impact or jitter. The intelligent PLC control system ensures accurate lifting positioning and flexible operation. Meanwhile, multiple safety limit devices including moment limiter, weight limiter, height limiter, radius limiter and slewing limiter provide full overload protection and construction safety guarantee. The machine supports operation data logging and remote fault diagnosis, convenient for daily equipment management.
The independent panoramic driver’s cab is equipped with sound insulation and shock absorption design, providing broad vision and comfortable operating experience. Reasonable handle layout effectively reduces operator fatigue during long-time continuous work and improves overall construction safety efficiency.
Supporting multiple installation methods, the TC7050 heavy-duty tower crane can adapt to different site conditions and building heights. We provide complete English version technical documents, factory test reports, material certificates and CE certification to support customs clearance for Middle East, Africa, Southeast Asia, Central Asia and other international markets. Customized configuration and professional export packaging solutions are available.
QTZ400 TC7050 tower crane is widely applied in high-rise residential buildings, super high-rise office buildings, large shopping malls, precast construction projects, bridge engineering, power plant construction, industrial factory buildings and other large infrastructure projects. It is the preferred heavy lifting equipment for construction contractors and tower crane leasing companies.
We provide brand new QTZ400 TC7050 tower cranes with factory direct price and reliable quality. All machines undergo strict factory inspection before delivery. We support customized configuration, professional export packaging, overseas installation guidance and technical training. Long-term spare parts supply and perfect after-sales service ensure stable operation of your construction equipment.
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