NEW TOWER CRANE
Tel:+8613791055589(Mob.)
E-mail:smithbai2016@outlook.com
Product details description
QTZ450 (TC7550) tower crane is a high-performance heavy-duty top-kit horizontal jib tower crane with a rated load moment of 4500kN·m, upgraded on the basis of conventional large tower cranes. Designed for super high-rise buildings, large-scale precast construction, long-span bridge projects, industrial heavy-duty workshops and mega infrastructure engineering, this 75m ultra-long jib tower crane delivers outstanding heavy-load capacity and ultra-wide construction coverage. It features a maximum lifting capacity of 25 tons and a stable 5-ton tip load at the full 75-meter working radius, making it a high-cost-performance flagship model for medium and large construction projects worldwide.
The TC7550 tower crane supports three flexible installation modes: fixed base, external attached climbing and internal climbing, adapting to complex construction site conditions. Equipped with full VFD frequency conversion speed regulation system and intelligent PLC control system, the whole machine operates stably with high positioning accuracy and high construction efficiency. All equipment undergoes strict factory flaw detection and performance testing, with complete ISO9001 and CE certification, fully meeting global export standards and overseas project construction requirements.
Model: QTZ450 / TC7550
Rated Load Moment: 4500kN·m
Max Jib Length: 75m
Tip Load (75m): 5.0 ton
Max Lifting Capacity: 25 ton
Independent Height: 73m
Max Attached Height: 220m
Standard Section Size: 2450×2450mm
Control System: Full VFD frequency conversion + PLC intelligent control
Installation Type: Fixed / Attached / Internal Climbing
Certification: ISO9001, CE, Complete factory inspection & welding flaw detection reports
Upgraded with a 75-meter super-long jib, the QTZ450 TC7550 tower crane breaks the coverage limit of traditional 70m jib cranes, realizing ultra-wide construction coverage. It maintains a stable 5-ton lifting capacity at the maximum radius and supports a 25-ton super heavy load at close range, perfectly adapting to the hoisting of large precast components, steel structures and heavy building materials. It effectively reduces machine shifting times, improves overall construction efficiency and lowers project operating costs, ideal for large-scale and high-standard construction projects.
All main load-bearing components of the tower crane adopt high-grade Q355B high-strength steel, with integrated forming technology and full-automatic robot welding. Key welding seams undergo professional non-destructive flaw detection to eliminate structural hidden dangers, ensuring excellent overall rigidity, stability and fatigue resistance. The whole machine adopts electrostatic plastic spraying anti-corrosion technology, which is resistant to coastal salt spray, high humidity, strong wind and sand, and extreme weather environments. The universal interchangeable standard sections reduce later replacement and maintenance costs, extending the whole service life of the equipment.
The lifting, slewing and trolleying mechanisms are all equipped with imported VFD frequency conversion drive systems, realizing stepless speed regulation, smooth start and stop without impact, jitter or swing. Matched with intelligent PLC centralized control, the crane achieves high-precision material positioning and flexible operation. It is equipped with a complete set of safety protection devices including moment limiter, weight limiter, height limiter, radius limiter and slewing anti-collision limiter, providing full-range overload and over-limit protection. Meanwhile, it supports real-time operation data logging and remote fault diagnosis, facilitating intelligent equipment management and daily maintenance.
The independent suspended panoramic driver’s cab adopts integrated sound insulation, shock absorption and heat insulation design, with ultra-wide field of vision and comfortable operating environment. The optimized ergonomic control handle layout simplifies operation procedures and effectively reduces operator fatigue during long-hour continuous work. The whole machine complies with international safety standards, with multiple safety interlock protection mechanisms to avoid operational risks and ensure safe and efficient construction.
Supporting multiple installation methods, the QTZ450 TC7550 tower crane can flexibly adapt to different site terrains, building heights and construction scenarios. We provide complete English version technical manuals, factory test reports, material certification documents and CE qualification certificates, ensuring smooth customs clearance and project delivery in Middle East, Africa, Southeast Asia, Central Asia, Europe and other global markets. Customized equipment configuration, special anti-corrosion treatment and professional export packaging services are available to meet diverse customer demands.
QTZ450 TC7550 large tower crane is widely used in super high-rise residential buildings, high-rise office buildings, large commercial complexes, precast concrete construction, long-span bridge engineering, power station and industrial plant construction, municipal key projects and other large and medium-sized infrastructure projects. It is the preferred heavy-duty lifting equipment for engineering general contractors, professional tower crane leasing companies and overseas construction enterprises.
We supply brand-new original QTZ450 TC7550 tower cranes with direct factory prices and reliable quality assurance. All equipment is strictly inspected and tested before delivery to ensure stable performance. We provide one-stop services including personalized configuration customization, professional export packaging, overseas on-site installation guidance, professional technical training and long-term spare parts supply. The perfect global after-sales system ensures long-term stable operation of customer equipment and creates maximum value for projects.
Welcome to contact us for detailed product parameters, latest quotation and professional export construction solutions!
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