Rubber Tyred Container Gantry Crane for Large Bridge Girder Lifting

China Railway Baoji Bridge Group Co., Ltd. (CRBBG) has achieved a major breakthrough in heavy bridge-girder lifting technologies through the deployment of our ME400+400t dual-trolley rubber tyred container gantry crane. With coordinated dual-trolley control and an intelligent monitoring and warning system as its core strengths, the equipment significantly enhances lifting efficiency and operational safety, providing robust support for high-speed railway construction, sea-crossing bridges, and other large-scale infrastructure projects. This case marks an important step in the development of gantry cranes toward ultra-heavy-duty and intelligent applications, driving technological advancement across the industry.

China Railway Baoji Bridge Group Co., Ltd. Overview

China Railway Baoji Bridge Group Co., Ltd. (CRBBG), headquartered in Baoji, Shaanxi, is a leading Chinese manufacturer specializing in steel bridges, heavy steel structures, railway turnouts, urban rail transit equipment, and large-scale lifting machinery. Formerly a key subsidiary of China Railway Group, CRBBG was restructured in 2017 into the listed China Railway Hi-Tech Industry Co., Ltd. It remains a critical supplier for China's railway construction and major infrastructure projects.

Rubber Tyred Container Gantry Crane Equipment Overview

To meet the demanding requirements of large bridge construction, CRBBG adopted the ME400+400t dual-trolley rubber tyred container gantry crane, a heavy-duty lifting system specifically designed for oversized components. The crane features a dual-girder, dual-trolley configuration. Each trolley supports a rated load of 400 tons, and both trolleys operating in coordination provide a combined capacity of 800 tons. The span can be customized between 40–60 meters, with a maximum lifting height of 40 meters. The system complies with GB/T 3811-2008 crane design standards and is certified under ISO 12482, making it highly suitable for high-precision lifting under complex working conditions.

Rubber Tyred Container Gantry Crane Core Application Scenarios

Steel Box Girder Segment Lifting

• Task: Lifting a 380-ton steel box girder segment (32 m long, 4.5 m wide).
• Result: Dual-trolley synchronous lifting (±5 mm accuracy), combined with laser alignment, reduced traditional lifting time from 3 hours to 45 minutes and improved placement accuracy by 60%.

Bridge Rotation Construction

• Task: Assisting in the rotation of a 1,200-ton bridge (rotation angle: 75°).
• Result: Dynamic dual-trolley load-balancing technology eliminated center-of-gravity offset issues during rotation, achieving a 100% success rate.

Multi-Span Continuous Beam Installation

• Task: Installing 40-meter-long precast beams between multiple bridge piers.
• Result: Main-girder deflection kept within L/1000, ensuring precise beam placement and increasing installation efficiency by 40%.

Key Technical Innovations

Dual-Trolley Coordinated Control System

• PLC + inverter dual-loop control achieves synchronized speed and position (0.1 mm precision).
• Integrated 3D laser scanning generates real-time digital models of the beam to optimize lifting path planning.

Enhanced Structural Safety Design

• Main girders use welded box-girder construction with Q345D steel; critical sections reinforced with Q460E.
• Dual braking system (hydraulic + electromagnetic) with a response time ≤0.3 seconds.

Intelligent Monitoring & Warning System

• Real-time monitoring of stress, wind speed, and anti-collision parameters.
• Remote monitoring platform enables live transmission of key data to the control center.

User Feedback & Benefits

• Efficiency: Equipment utilization increased by 35%; project duration shortened by 2–3 months.
• Cost Optimization: Reduced component damage through precise lifting, saving approximately RMB 2.8 million annually in repair costs.
• Safety: Zero safety incidents in five years of operation; certified to ISO 45001 Occupational Health and Safety standards.

Cindy

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I am Cindy, with 10 years of working experience in the crane industry and accumulated a wealth of professional knowledge. I have chosen the satisfying cranes for 500+ customers. If you have any needs or questions about cranes, please feel free to contact me, I will use my expertise and practical experience to help you solve the problem!