Double-girder rail-mounted gantry crane: Industrial giant arm, heavy-load operation, "stability" is the top priority
Amidst the vast industrial complex, this dazzling yellow "giant arm"—a double-girder rail-mounted gantry crane—is becoming a key player in heavy material handling!
Technical Parameters:
| Lifting Capacity | 5 t～320 t (larger tonnage can be customized to suit the lifting of extra-heavy materials) |
| Lifting Height | 6m～30m (vertical distance from the ground/track surface to the center of the hook, customizable) |
| Span | 6m～30m (vertical distance from the ground/track surface to the center of the hook, customizable) |
| Lifting Speed | Heavy load (large lifting capacity): 2m/min to 10m/min (smooth lifting, ensuring safety); Light load/no load: 10m/min to 30m/min (improved operating efficiency) |
| Work Duty | Overall machine operating level: A5-A7 (indicates the frequency of equipment use and load conditions, with A7 suitable for heavy, continuous operation); Lifting mechanism operating level: A5-A6 (indicates the frequency of use and load characteristics of the lifting mechanism) |
The double-girder structure, like a steel backbone, gives it robust load-bearing capacity, allowing it to effortlessly transfer large-tonnage steel, industrial equipment, and containers. Its stable operation along pre-set tracks ensures precise operation and efficiently and effectively handles long-distance, high-frequency lifting tasks.
Double-girder gantry cranes offer the following advantages over single-girder cranes and some lightweight cranes:
1. Structure and Load Capacity: Stable and reliable for handling large loads.
Double-girder design enhances stability: The double-girder structure provides enhanced rigidity, torsional resistance, and wind resistance, enabling stable operation in harsh environments such as harbor waves and strong winds in open cargo yards, preventing heavy loads from swaying or equipment deformation.
Large Capacity and Wide Range: With a lifting capacity of 5t to 320t (or even higher), far exceeding that of single-girder cranes, double-girder cranes can easily handle large loads such as large machinery, containers, and heavy industrial components.
2. Span and Operating Range: Flexible Coverage in Large Spaces
Spans of 5m to 50m (or even wider) can accommodate workspaces of varying widths, covering a wider area (e.g., the transshipment of extra-long and extra-wide components in large cargo yards and shipyards), significantly improving site utilization and reducing secondary handling of cargo. 3. Operation and Intelligence: Smooth and Efficient, Precise and Controllable
Smooth Operation and Reduced Losses: Equipped with a variable frequency speed control system and a three-in-one drive unit, it achieves stepless speed regulation, ensuring smooth lifting and trolley operation, reducing vibration and mechanical shock, and extending equipment life.
Intelligent Functions Improve Efficiency: Features such as "inching and micro-speed positioning," "zero-speed hovering to prevent hook slippage," and "electronic anti-sway" ensure more precise load handling (for example, precise parking when lifting precision equipment). It supports multi-hook synchronization and "multi-vehicle coordination," making it suitable for the combined lifting of oversized cargo. Some models can be connected to the Industrial Internet platform for full lifecycle management (fault warnings, remote operation and maintenance, etc.).
4. Adaptability and Maintenance: Versatile in Multiple Scenarios, Easier Maintenance
Strong Environmental Adaptability: It can operate in complex industrial environments such as high temperature, high humidity, and high dust, and can even withstand outdoor weather such as rain, snow, and strong winds. Customizable special features such as explosion-proof and corrosion-resistant features expand its application to specialized fields such as the chemical and power industries. Lower maintenance costs: The machine boasts a simple structural design (e.g., some models offer "10-year maintenance-free" clutch and transmission). Key components (such as the European-style lifting mechanism) are maintenance-free or easily accessible. Advanced welding processes (submerged arc automatic welding, post-weld shot blasting for stress relief) combined with durable coatings such as epoxy zinc-rich paint significantly extend equipment lifespan and reduce maintenance frequency and costs.
V. Scenario and Customization: Comprehensive Coverage, Precisely Matching Needs
It can handle applications ranging from ports and terminals (bulk cargo/container loading and unloading), factory floors (heavy equipment transfer), to power plants and shipyards (large-scale lifting). Customizable structural configurations (no cantilever/single cantilever, A-type/U-type) and operating methods (ground-based, aerial, or remote control) precisely meet the specific operational needs of different industries.
From container loading and unloading at port terminals, to the transfer of large components in heavy-duty workshops, to the movement of bulk materials in freight yards, its stable load-bearing, high-precision, and efficient performance provide a solid foundation for the material flow of industrial production, making it an indispensable "hard lifting force" in the heavy industry.