Top Box and Bottom Truss Single Girder Gantry Crane from China Suppliers - Reliable Factory Lifting Solution
Product Video
Key Features
- Dual Structure Design: The top box girder offers high structural strength and torsional resistance, while the bottom truss design minimizes weight and maximizes stability.
- Increased Load Capacity: The combination of top box and bottom truss increases the lifting capacity without adding excessive weight, ensuring safe handling of heavy materials.
- Wind Resistance: The open truss bottom structure enhances the crane’s wind resistance, making it ideal for outdoor use in areas with harsh weather conditions.
- Optimized Design: Customizable spans, lifting heights, and lifting capacities, allowing the crane to be tailored to your unique operational needs.
- Cost-Efficient: Combining both box and truss design reduces material consumption while providing excellent lifting performance and stability.
Technical Specifications
- Lifting Capacity: 5 tons to 50 tons (customized as per requirements)
- Span Length: 8 meters to 35 meters
- Lifting Height: 6 meters to 20 meters (custom height options available)
- Working Duty: A3~A5 (medium to heavy-duty operations)
- Power Supply: 380V 50Hz 3Phase (or customized voltage specifications)
- Control Method: Pendant control, remote control, or operator cabin control options
Applications
The Top Box and Bottom Truss Single Girder Gantry Crane is ideal for a wide range of industrial applications:
- Steel fabrication plants
- Heavy-duty loading/unloading areas
- Outdoor construction sites
- Shipyards and offshore platforms
- Precast concrete yards
- Large material storage yards
- Mining industry
Benefits
- Heavy Lifting with Reduced Weight: The innovative combination of top box and bottom truss allows the crane to lift heavy loads without increasing its overall weight.
- Enhanced Durability: The dual structure enhances durability, providing greater resistance to wind and environmental conditions.
- Customizable Options: Tailored to your specific needs, offering flexibility in design, size, and lifting capacity.
- Safety Features: Equipped with overload protection, emergency stop functions, limit switches, and other safety measures to ensure smooth and secure operation.
- Quick Setup and Easy Maintenance: Simple assembly and reduced maintenance costs, making it a great solution for cost-conscious businesses.
Why Choose Us?

We are a leading manufacturer of cranes in China, offering top-quality lifting equipment with over a decade of expertise in the field. Our factory is equipped with advanced CNC technology and rigorous quality control systems. We provide:
- Factory-direct competitive pricing
- On-time delivery worldwide
- CE/ISO certifications for global compliance
- Expert design and engineering support
- 24/7 customer service and after-sales support
Frequently Asked Questions
What are the benefits of the dual top box and bottom truss design?
The top box girder provides excellent structural strength and torsional resistance, while the bottom truss reduces the crane's weight and significantly improves wind resistance, making it highly stable and perfect for outdoor applications.
What is the range of lifting capacity and span length?
The lifting capacity ranges from 5 tons to 50 tons, with a span length of 8 meters to 35 meters. Both specifications can be fully customized based on your specific requirements.
What control methods are available for operation?
Operators can choose between pendant control, wireless remote control, or operator cabin control depending on safety needs and application environments.
Is this gantry crane suitable for outdoor applications?
Yes. The open truss bottom structure reduces wind load, making it exceptionally stable and safe for outdoor construction sites, shipyards, precast concrete yards, and mining operations.
What certifications do your cranes hold?
Our cranes are manufactured under strict quality control systems and carry CE and ISO certifications to ensure full compliance with global safety standards.






