Henan Mine Machinery’s 700-ton Gantry Crane for Super Bridge Engineering

Henan Mine Machinery’s 700-ton gantry crane, specifically engineered for super bridge projects worldwide, serves as the core lifting equipment for constructing steel towers of monumental bridges. Positioned around “ultra-high load capacity, precision reliability, energy efficiency, and strong adaptability,” this equipment resolves industry challenges in super bridge projects—such as the difficulty of lifting large-tonnage components, poor stability during high-altitude operations, and stringent requirements for span-to-lift-height compatibility. It delivers a one-stop heavy-lift solution for world-class river and ocean-spanning bridges, large-scale infrastructure projects, and other major undertakings.

Developed using modern computer technology, this 700-ton gantry crane represents a heavy-duty, long-span, high-lift engineering gantry crane. It integrates advanced domestic configurations, new materials, and innovative processes, embodying four core characteristics: lightweight design, universal applicability, high technological sophistication, and energy efficiency. Its 700-ton ultra-high rated lifting capacity effortlessly meets the hoisting demands for the 350-meter-tall main steel tower of the Zhangjiagang Yangtze River Bridge. With its exceptional quality, it has become the “equipment of choice” for major national projects in bridge construction, military, and aerospace sectors, showcasing Henan Mine Machinery’s top-tier R&D and manufacturing capabilities in heavy-duty lifting equipment.

Henan Mine Machinery’s 700t Gantry Crane for Super Bridge Projects

Core Technological Advantages

1. Super-heavy Load Capacity, Tailored for Mega-Projects: With a rated capacity of 700t, its core structure utilizes high-strength new materials. Optimized through finite element analysis and validated by rigorous type testing, it offers ample safety margins. This crane reliably handles the lifting, transportation, and precise positioning of heavy components like 500-650t-class main bridge steel towers and large-span segments, fully meeting the core lifting demands of mega-bridge projects.
2. Long Span + High Lifting Height, Flexible Adaptation to Scenarios: Featuring a modular design with extended span and lifting height capabilities, standard spans cover 40-60m while lifting heights reach 80-100m. Parameters can be flexibly adjusted based on bridge site layouts and component dimensions, effortlessly covering the full range of lifting operations for tall main steel towers. Paired with a high-precision laser positioning system, lifting alignment error is ≤5mm, ensuring installation accuracy for heavy components and laying a solid foundation for project quality.
3. Lightweight Design: Cost-Effective and Robust: Modern computer simulation technology optimizes structural layout, achieving equipment weight reduction while maintaining load-bearing strength. Compared to traditional cranes of equivalent tonnage, self-weight is reduced by over 10%, effectively lowering foundation load requirements and indirectly saving infrastructure investment costs. Simultaneously, torsional resistance is enhanced by 20%. Validated through 1.25 times overload testing, it fully meets stability demands for long-term high-intensity operations.
4. Energy Efficiency + Advanced Craftsmanship: Durable and Economical: Incorporating variable frequency speed control and energy recovery technology, electrical energy is reclaimed during component descent and braking. This achieves over 15% energy savings compared to traditional equipment of the same tonnage, aligning with green infrastructure development principles. Utilizing new processes like high-precision welding and full annealing, combined with fatigue-resistant and corrosion-resistant materials, the machine achieves an average mean time between failures (MTBF) exceeding 8,000 hours. This significantly enhances equipment durability and reduces operational and maintenance costs.
   

   Henan Mine Machinery’s 700t Gantry Crane for Super Bridge Projects

Suitable Scenarios & Benchmark Cases

• Core Applications: Engineered for super-scale bridges, large river/sea crossings, and heavy infrastructure projects. Designed for lifting, transporting, and installing ultra-heavy components like main steel towers, large-span bridge segments, and heavy steel structures. Especially suited for demanding scenarios involving “high tonnage, long spans, great lifting heights, and complex high-altitude operations.”
• Benchmark Case Endorsements: Successfully adapted for steel tower hoisting at Zhangjinggao Yangtze River Bridge (main steel tower height: 350 meters), passing type testing; Previously served multiple national key bridge projects including Jianzhou Bridge, Changtai Yangtze River Bridge, and Ma’anshan Yangtze River Road-Rail Bridge. With stable operational performance and precise lifting capabilities, it has earned high recognition from all project owners, establishing itself as the “preferred brand” equipment in bridge engineering.
  

  Henan Mine Machinery’s 700t Gantry Crane for Super Bridge Projects

Corporate Strength Endorsement

Henan Mine has become the “preferred brand” for national key projects in bridge construction, military, aerospace, and other sectors through its superior product quality, stable and reliable performance, and leading technological advantages. The company possesses full-chain capabilities in R&D, manufacturing, and commissioning of heavy-tonnage lifting equipment, equipped with advanced production facilities and stringent quality control processes. Every stage from design to delivery adheres to “premium standards.” For years, it has provided core equipment support for major national projects, driving the high-quality development of China’s lifting industry through its intelligent manufacturing expertise.