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- Global sales over 10,000 units
Aicrane double girder overhead cranes are widely used for heavy material handling in industries such as steel, manufacturing, energy, and construction. With lifting capacities from 5 to over 500 tons and customizable design options, our cranes are built to match different load types, working environments, and operational demands.
Explore Our Double Girder Overhead Crane Models
Whether you’re lifting everyday materials or operating in a hazardous, high-temperature, or high-precision environment, Aicrane has the double girder overhead crane solution for you.
Double Girder Overhead Cranes for General Material Handling
These double girder bridge crane models are ideal for workshops, warehouses, assembly lines, and general lifting needs across various industries.
AQ-QDX Double Girder Crane: Stable & Precise with Frequency Drive
The AQ-QDX crane double girder features a compact and lightweight design, ideal for precise lifting in limited spaces. It ensures smooth, safe, and efficient operation.
Key Features:
- Smooth Operation: Frequency conversion drive for stable movement and precise control.
- Integrated Trolley: Three-in-one motor reduces size and improves reliability.
- High Efficiency: Suitable for frequent, accurate lifting with low maintenance.
Main Specifications:
- Load Capacity: 5-320 tons (customized)
- Span: 10.5-31.5m (customized)
- Lifting Height: 6-24m (customized)
- Work Duty: A3-A5
AQ-QD Double Girder Overhead Crane: High-Efficiency, Robust Structure
The AQ-QD model is a double girder trolley overhead crane with strong and stable double box girders, ideal for demanding lifting tasks.
Key Features:
- Robust Design: Box-type double main beam for high strength and rigidity.
- Efficient Operation: High-speed operation for fast and continuous production.
- Flexible Use: Can be equipped with various spreaders or hook attatchemnts for different lifting needs.
Main Specifications:
- Load Capacity: 5-450 tons (customized)
- Span: 10.5-31.5m (customized)
- Lifting Height: 6-24m (customized)
- Work Duty: A3-A7
AQ-LH Hoist Double Girder Crane: Cost-effective for Lighter Loads
The AQ-LH double girder hoist overhead crane is a cost-effective solution for light to moderate lifting tasks using an electric hoist.
Key Features:
- Simple & Practical: Double girder design with electric hoist for easy use.
- For Lighter Use: Suitable for A3-A4 work duty environments.
- Reliable & Affordable: A good choice for less demanding operations.
Main Specifications:
- Load Capacity: 5-50 tons (customized)
- Span: 10.5-31.5m (customized)
- Lifting Height: 6-30m (customized)
- Work Duty: A3-A4
AQ-NLH Hoist Double Girder Crane: Compact & Frequency-Controlled
The AQ-NLH is an electric hoist double girder overhead crane design with compact structure and frequency control, ideal for precise and efficient lifting.
Key Features:
- Compact Design: Low wheel pressure and low headroom reduce building cost.
- Smooth Control: Frequency conversion drive ensures accurate, stable lifting.
- Wide Working Area: Smaller hook limit, larger coverage.
Main Specifications:
- Load Capacity: 5-80 tons (customized)
- Span: 10.5-31.5m (customized)
- Lifting Height: 6-18m (customized)
- Work Duty: A5
Industry-Specific Double Beam Overhead Cranes for Special Handling Needs
These double beam bridge cranes are specially designed to handle challenging materials or operate in demanding industrial environments.
AQ-QC Electromagnetic Double Girder Overhead Crane
This double girder magnetic overhead crane is specially designed for lifting and handling magnetic materials like steel plates, billets, and scrap.
Key Features:
- Magnetic Lifting: Equipped with a strong electromagnetic chuck for efficient steel handling.
- Safe & Reliable: With power-off protection and temperature monitoring for magnets.
- Customizable: Suitable for steel mills, warehouses, and yards.
Main Specifications:
- Load Capacity: 5-50 tons (customized)
- Span: 10.5-31.5m (customized)
- Lifting Height: 6-16m (customized)
- Work Duty: A5-A7
AQ-QZ Grab Double Beam Bridge Crane
Designed for bulk material handling, this double girder grab crane uses a grab bucket to handle sand, coal, grain, and waste.
Key Features:
- Efficient Grabbing: Comes with mechanical or hydraulic grabs for different materials.
- High Productivity: Ideal for ports, power plants, mining and waste handling stations.
- Custom Options: Grab type and size can be tailored to the material.
Main Specifications:
- Load Capacity: 5-20 tons (customized)
- Span: 10.5-31.5m (customized)
- Lifting Height: 6-26m (customized)
- Work Duty: A5-A7
AQ-QB Explosion-Proof Double Girder Overhead Bridge Crane
Engineered for explosive or flammable environments, this double beam explosion proof crane meets strict safety standards for industries like petrochemicals and mining.
Key Features:
- Explosion-Proof Design: Motors, control systems, and wiring comply with explosion-proof standards.
- Safe Operation: Spark-proof materials and enclosed wiring enhance safety.
- Reliable Control: Multiple control modes for hazardous areas.
Main Specifications:
- Load Capacity: 5-75 tons (customized)
- Span: 10.5-31.5m (customized)
- Lifting Height: 6-20m (customized)
- Work Duty: A3-A4
AQ-YZ Metallurgical Double Girder Bridge Crane
This double girder metallurgical bridge crane is specially designed for high-temperature steelmaking environments, such as handling molten metal, ladles, or ingots.
Key Features:
- Heat-Resistant Design: Equipped with thermal protection and heat-shielding components.
- Heavy-Duty Operation: Built for continuous work in steel plants.
- High Safety Standards: Dual braking systems and redundant safety measures.
Main Specifications:
- Load Capacity: 5-320 tons (customized)
- Span: 10.5-31.5m (customized)
- Lifting Height: 6-24m (customized)
- Work Duty: A6-A8
If you’d like to explore these double girder overhead crane specifications in more detail or need help selecting the right configuration for your application, feel free to contact us at any time. To give you a clearer understanding of how these cranes are applied in real working conditions, here are some typical project cases for your reference.
Double Girder Overhead Crane Project Cases
16 Ton Double Girder Overhead Crane Boosts Efficiency at Russian Steel Plant
Equipment Requirement:
The steel plant’s existing overhead crane was aging and could no longer keep up with production demands. A replacement was needed that fit the fixed workshop dimensions while improving operational efficiency.
Solution:
A 16-ton electromagnetic double girder overhead bridge crane was custom-designed for the workshop layout and operator habits. Key features include:
- Technical parameters: Span 25 meters, Lifting Height 8.1 meters (under the electromagnetic spreader beam)
- Trolley Configuration: Rotating trolley for flexible material positioning
- Dual-Purpose Lifting Attachments: Removable electromagnetic beam for steel plates; switchable to slings for steel coils
- Safety Monitoring: Integrated safety monitoring and management system for safe and reliable operation
Result:
The new crane replaced the outdated equipment without major structural modifications, significantly improving material handling efficiency, operational flexibility, and production reliability.
Customer Feedback:
“Your company’s specialists assisted us with the commissioning and adjustment of the crane. They promptly helped resolve arising issues, professionally and competently answered all our questions.”
64 Ton Double Girder Overhead Crane Ensures Safe Handling of Heavy Molds at Russian Machinery Plant
Equipment Requirement:
The machinery manufacturing plant in Russia required a crane that seamlessly integrates with the existing workshop layout and accommodates the special process requirements for handling heavy molds safely and efficiently.
Solution:
We supplied a 64-ton double girder overhead crane with a span of 22.5 meters and a lifting height of 11 meters. The crane is equipped with dual trolleys to enable precise positioning and safe handling of heavy molds, fully tailored to the plant’s workflow and operational needs.
Result:
The custom double girder crane allows safe, efficient, and flexible transport of heavy molds within the workshop. It integrates perfectly with the existing layout, minimizes operational disruptions, and enhances overall production efficiency.
Customer Feedback:
“The crane has been reliable and efficient from day one, greatly improving our mold handling process. We also appreciate the professional installation support and responsive service. This positive experience gave us the confidence to purchase a second crane and continue our cooperation.”
More Project Highlights
Common Lifting Attachments for Double Girder Overhead Cranes
After exploring our double girder overhead bridge crane types and their performance in real-world applications, it becomes clear that each crane can be further customized to meet specific operational and material handling requirements. Depending on the type of load, a variety of lifting attachments can be selected to ensure safe and efficient handling of different materials. Below are some of the most commonly used hook attachments and spreader devices for double girder overhead bridge cranes.
Contact us to learn more about lifting attachments tailored to your material handling needs – ensuring safe, precise, and efficient lifting. Looking to further enhance the safety and efficiency of your operations? Explore the intelligent features below.
Smart Features of Double Girder Cranes for Safer and More Efficient Heavy Lifting
At Aicrane, we integrate advanced lifting technologies to make heavy lifting not only safer but smarter and more efficient than ever before.
Intelligent Monitoring System
Our double bridge cranes can be equipped with advanced visual recognition technology that enables real-time visualization of equipment operation status. This intelligent monitoring ensures safer, more stable crane operation and helps prevent failures before they occur.
- 24/7 real-time monitoring
- Reduce unexpected downtime by up to 30%
- Early fault detection for preventive maintenance
Smart Control System
Powered by PLC automation, variable frequency drives (VFD), and 5G communication technology, the smart control system significantly improves system responsiveness and operational efficiency.
- Up to 60% faster response and feedback speed
- Smoother and more precise motion control
- Improved overall workflow efficiency
Anti-Sway Technology
With advanced electrical anti-sway control, the system intelligently detects load movement and automatically stabilizes it for higher precision handling.
- Reduce load sway by up to 90%
- Millimeter-level positioning accuracy
- Enhanced safety during lifting and transport
All these smart technologies are configured based on your specific requirements. Our goal is to help you handle heavy loads with greater control, speed, and reliability – delivering smarter and more efficient double girder bridge crane solutions that drive your productivity forward.
How to Choose the Right Double Girder Overhead Crane
With a wide range of customizable configurations and advanced features available, selecting the right crane can seem complex. The key is to match the crane specifications with your actual lifting requirements and working conditions.
Choosing the right double girder overhead crane involves evaluating several critical factors, from load capacity to operating environment. The guide below will help you make a more informed, efficient, and cost-effective decision:
Determine Load Capacity
The first step in choosing a double girder overhead bridge crane is defining the maximum load weight it needs to lift.
- Base calculations on the maximum single load, not average.
- Include a 10–20% safety margin to account for dynamic lifting forces.
- When to choose higher capacity: Frequent lifting of heavy or uneven loads, or future load increases.
Define Span and Lifting Height
Span and height affect double girder overhead crane design, travel path, and workshop utilization.
- Measure your workshop or warehouse dimensions accurately.
- Consider overhead obstacles, structural beams, or machinery.
Longer spans may require reinforced girders; higher lifts may need extended hook travel. Proper span and height ensure efficient space usage, smooth operation, and precise positioning.
Evaluate Working Duty and Frequency
Double girder cranes are rated according to their operational duty cycle (A3–A8).
- Light duty overhead cranes (A3–A4) are suitable for occasional lifting tasks.
- Medium- to heavy-duty overhead cranes (A5–A8) are ideal for frequent or continuous lifting in industrial applications.
Choosing the correct duty rating prevents premature wear and reduces maintenance costs.
Consider Operating Environment
The workshop environment affects double beam crane selection:
- Indoor or outdoor operation: Outdoor cranes may require weatherproofing, corrosion-resistant coatings, and sealed motors.
- Temperature extremes or dusty environments: Special components may be required for reliable performance.
- Hazardous environments: Cranes in explosive or chemical-prone areas must meet ATEX or other safety standards.
Choose the Right Control Mode
Control type affects precision, safety, and workflow efficiency.
- Pendant Control: Best for short spans and light to medium loads. Simple and cost-effective.
- Radio Remote Control: Suitable when operators need mobility or improved visibility, e.g., in busy or complex layouts.
- Cabin Control: Recommended for long spans or heavy-duty loads requiring precise handling.
Evaluate your load weight, crane span, workshop complexity, and required precision to select the most suitable control mode.
Determine Necessary Crane Features
Choosing additional crane features should be based on your lifting challenges and operational goals:
- Intelligent Monitoring: Select if you want real-time status tracking and early fault detection to reduce downtime and maintenance costs.
- Anti-Sway Control: Essential when handling sensitive or high-precision loads
- Variable Frequency Drives (VFD): Use when smooth start/stop and controlled acceleration are needed for efficiency and load protection.
Analyze your load types, precision needs, and workflow complexity to decide which features are worth investing in for safer and more efficient operations.
Always work with experienced double girder overhead crane manufacturers and suppliers to make an informed choice. With your requirements clear, the next step is to look at pricing and value, to find a solution that fits both performance and budget.
What Is The Double Girder Overhead Crane Price?
The price of a double girder crane varies based on factors such as lifting capacity, span length, lifting height, and work duty. Additional considerations, like materials used and custom features, can also impact the cost. Here is a general price range for some common types and capacities of Aicrane double girder overhead crane for sale:
| Capacity | Model | Span | Price (USD) |
|---|---|---|---|
| 10 Ton | AQ-QD | 10.5-31.5m | $14,000-$36,400 |
| AQ-QDX | 10.5-31.5m | $18,200-$35,000 | |
| AQ-LH | 10.5-31.5m | $7,000-$25,200 | |
| AQ-NLH | 10.5-31.5m | $15,400-$35,000 | |
| 20 Ton | AQ-QD | 10.5-31.5m | $23,800-$50,400 |
| AQ-QDX | 10.5-31.5m | $21,000-$46,200 | |
| AQ-LH | 10.5-31.5m | $9,100-$29,400 | |
| AQ-QDY | 10.5-31.5m | $40,600-$75,600 | |
| 32 Ton | AQ-QD | 10.5-31.5m | $35,000-$58,800 |
| AQ-QDX | 10.5-31.5m | $30,800-$54,600 | |
| AQ-NLH | 10.5-31.5m | $28,000-$56,000 | |
| AQ-QDY | 10.5-31.5m | $68,600-$98,000 | |
| 50 Ton | AQ-QD | 10.5-31.5m | $42,000-$77,000 |
| AQ-QDX | 10.5-31.5m | $35,000-$70,000 | |
| AQ-QDY | 10.5-31.5m | $93,800-$126,000 |
These prices are for reference only. Whether you’re looking for a 20 ton or a 50 ton double girder overhead crane price, we recommend consulting with an Aicrane project consultant today for a precise, customized quote that fits your specific lifting needs.
Reasons to Choose Aicrane Double Girder Overhead Crane
Beyond price, it’s equally important to choose a manufacturer with strong factory capabilities, expert technical support, and comprehensive service. Here’s why Aicrane is the right choice for your double girder overhead bridge crane:
Exceptional Factory Strength for Double Girder Cranes
Aicrane stands out as a leading double girder overhead crane manufacturer, backed by a cutting-edge production facility spanning 850,000 square meters. This expansive factory space enables us to efficiently manufacture large-capacity, heavy-duty double girder bridge cranes to meet demanding industrial needs. With advanced production equipment and streamlined processes, we ensure precision engineering, consistent quality, and on-time delivery – helping you keep your lifting operations running smoothly and efficiently.
Expert Support for Tailored Crane Solutions
At Aicrane, our dedicated crane engineer team specializes in providing customized lifting solutions designed to address specific operational needs. Whether you require a double girder overhead crane with unique specifications or face technical challenges, our experts are equipped to offer effective solutions and guidance.
Reliable After-Sales Service for Your Crane
Our team provides guidance on installation, commissioning, maintenance, and troubleshooting, ensuring your crane operates safely and efficiently throughout its service life. With timely support and expert advice, we help you maximize performance, minimize downtime, and protect your investment.
Aicrane Double Girder Bridge Crane Installation Services
Once you’ve purchased a double beam overhead crane from Aicrane, you can leave the installation to us. Whether this is your first time installing an overhead crane or you have previous experience, we’re here to guide you through every step of the process and ensure a smooth and safe installation for your team. Let’s take a look at the installation services we provide to our customers.
Professional online installation guidance
We provide online installation services through video calls, ensuring a smooth installation process. There are also comprehensive installation manuals and online resources that cover every aspect of crane setup, which can also assist you throughout the installation process.
Prompt on-site installation guidance
Our experienced installation technicians can travel to your project site to provide hands-on support throughout the entire installation process. From pre-installation inspection and assembly supervision to testing and commissioning, we ensure your double girder overhead crane is installed safely, accurately, and efficiently.
Additionally, to help you better understand the installation steps in detail, we have created a 3D instructional video. Watch the video below for a comprehensive overview of the entire installation process.
Maintenance and Upkeep of Double Girder Overhead Cranes
After your double girder overhead crane has been installed and put into operation, proper maintenance is essential to ensure safe, efficient, and long-lasting performance. With its dual-girder structure, heavy-duty hoisting mechanisms, and high operational demands, the crane requires systematic, technically informed upkeep.
Structural Integrity Checks
Inspect the bridge girders, end carriages, trolley beams, and connections for cracks, deformation, or corrosion. Ensure welds and bolted joints remain secure, as the dual-girder design carries higher load stresses compared to single-girder cranes.
Hoist and Trolley Maintenance
Examine hoist drums, wire ropes, and trolley mechanisms. Replace worn ropes and check drum grooves for uniformity. Verify that hoist brakes and clutches operate within manufacturer specifications to maintain precise load handling.
Wheel and Runway System Care
Inspect crane wheels, rails, and alignment. Correct any misalignment to prevent uneven wear, vibration, or excessive noise. Lubricate wheel bearings and check for deformation under heavy loads.
Electrical and Control Systems
Perform regular inspections of motors, control panels, wiring, sensors, and PLCs. Check for overheating, loose connections, or signs of insulation wear. Ensure control devices – whether pendant, radio remote, or cabin – respond accurately and safely.
Safety and Limit Devices
Test all limit switches, overload protection, anti-collision sensors, and emergency stops. These systems are crucial for preventing accidents and ensuring precise load positioning.
Lubrication and Moving Parts
Apply appropriate lubricants to bearings, gears, trolley wheels, and guide rollers. Proper lubrication minimizes friction, reduces component wear, and ensures smooth crane operation.
Operational Load Testing
Periodically conduct full-load and partial-load tests to verify lifting performance, braking efficiency, and structural response. This confirms the crane can safely handle rated loads under real conditions.
A comprehensive maintenance schedule should include daily visual checks, weekly operational tests, and monthly detailed inspections, combined with annual preventive maintenance. Documenting each check allows tracking of wear patterns and timely replacement of high-stress components.
Single Girder VS. Double Girder Crane
When lifting heavy loads of 50-ton, 100-ton, or more, a double-girder design is generally the optimal choice. For lighter or medium loads, such as 5-ton, 10-ton, or 20-ton, you have greater flexibility, with options including both single-girder and double-girder cranes. So, what are the key differences between single girder and double girder overhead cranes? Below is a detailed comparison to help you make the right decision.
| Feature | Single Girder Overhead Crane | Double Girder Overhead Crane |
|---|---|---|
| Structural Design | Single main girder with the hoist running on top; simple structure, lighter weight, easier to install and maintain | Two main girders with the hoist or trolley running between them; more rigid structure, higher load capacity, better stability |
| Load Capacity | Typically 5-25 tons; suitable for light to medium-duty lifting | 5-500 tons and above; suitable for heavy-duty and high-frequency operations |
| Span & Lifting Height | Ideal for short to medium spans and moderate lifting heights; lower headroom requirement | Supports longer spans and higher lifting heights, offering more clearance and flexibility for large facilities |
| Operational Precision & Stability | Suitable for standard lifting tasks; moderate precision and stability | Provides higher stability and precision; can be paired with anti-sway systems or smart hoists for delicate or heavy loads |
| Cost & Investment | Lower initial cost; cost-effective for light to medium-duty applications | Higher upfront investment, but long-term value through durability, higher capacity, and operational efficiency |
| Typical Applications | Warehouses, general workshops, small manufacturing units, light material handling | Steel mills, shipyards, precast concrete plants, heavy machinery assembly, and other high-load industrial operations |
In conclusion, the choice between a double girder vs single girder crane depends largely on your specific operational requirements. While single girder cranes are well-suited for lighter, less complex tasks, double girder cranes offer the strength and flexibility needed for more demanding applications. By understanding the distinctions and considering your operational needs, you can make an informed decision on the right crane type for your business.
Steel Structure Solutions: Support Your Heavy Lifting Operation
In industrial settings, steel structures are integral to supporting the efficient and safe operation of your cranes. At Aicrane, we offer a complete suite of steel structure solutions tailored to enhance the functionality of your double girder overhead crane system. Our industrial steel structure solutions include:
Steel Structure Design
We provide expert design services to create robust steel structure workshops, warehouses, or other industrial buildings that integrate with your overhead crane system. Our designs are tailored to meet your specific operational needs and ensure optimal performance.
Steel Structure Manufacturing
Our state-of-the-art manufacturing facilities produce high-quality steel structures that adhere to industry standards. We focus on precision and durability to ensure that our structures can withstand the rigors of heavy-duty lifting operations.
Steel Structure Delivery
We manage the logistics of delivering your steel structures and overhead cranes to your site efficiently and safely. Our team ensures that all components arrive on schedule and in optimal condition.
Steel Structure Installation
Our experienced installation teams handle the assembly of both steel structures and overhead cranes.
After-Sales Services for Your Steel Structures
We offer comprehensive after-sales services, including maintenance, support, and training, to ensure that your steel structure buildings and overhead cranes continue to operate at peak performance.
For a tailored steel structure and double girder overhead crane solution that meets your specific requirements, contact us today to learn more about our services and how we can support your operations.