Product Introduction
A Double Girder Gantry Crane is a heavy-duty lifting solution designed with two main girders supported by gantry legs and traveling on ground rails. It is widely used for lifting, loading, unloading, assembling, and transferring heavy materials in outdoor yards, steel plants, precast concrete yards, shipyards, machinery manufacturing plants, power plants, logistics terminals, construction sites, and large industrial production areas.
Compared with a single girder gantry crane, a double girder gantry crane provides stronger structural rigidity, higher lifting capacity, larger span, greater lifting height, and better stability under demanding working conditions. It is commonly equipped with a hoist trolley or winch trolley traveling on top of the two main girders, which allows the crane to handle heavy loads efficiently and safely.
ZOKECRANE double girder gantry cranes are designed and manufactured by Henan Zoke Crane Co., Ltd., a professional lifting equipment manufacturer specializing in overhead cranes and gantry cranes. Our manufacturing base is located in Changyuan, Henan Province, one of China’s major crane production centers. With extensive experience in crane engineering, design, manufacturing, and export projects, ZOKECRANE provides reliable and customized lifting solutions for international customers.
A typical double girder gantry crane consists of two main girders, rigid legs, flexible legs, lower end beams, trolley traveling mechanism, lifting mechanism, crane traveling mechanism, electrical control system, power supply system, safety devices, platform, ladder, cabin or remote control system, and ground rail system. According to the project requirements, it can be designed as an MG type double girder gantry crane, A-type gantry crane, U-type gantry crane, rail mounted gantry crane, semi gantry crane, or customized heavy-duty gantry crane.
Double girder gantry cranes are especially suitable for applications where heavy loads, long spans, high lifting heights, frequent operation, or outdoor material handling are required. They can be customized with different lifting capacities, spans, lifting heights, trolley types, control methods, working duties, power supply systems, and safety configurations.
Main Features of ZOKECRANE Double Girder Gantry Crane
- Double main girder structure with strong rigidity
- Suitable for heavy-duty material handling
- Higher lifting capacity compared with single girder gantry cranes
- Larger span and higher lifting height available
- Stable traveling performance on ground rails
- Hoist trolley or winch trolley available
- Suitable for indoor and outdoor working environments
- Customized lifting capacity, span, lifting height, and rail length
- A-type, U-type, MG type, and semi gantry designs available
- Optional cantilever design for wider working coverage
- Cabin control, wireless remote control, and pendant control available
- Variable frequency control for smooth lifting and traveling
- Equipped with multiple safety protection devices
- Suitable for steel yards, precast yards, shipyards, workshops, and logistics areas
- Export packaging and international logistics support available
Common Types of Double Girder Gantry Crane
ZOKECRANE can design and manufacture different types of double girder gantry cranes according to lifting capacity, span, lifting height, site layout, working duty, application, and export requirements.
| Type | Description | Typical Application |
|---|---|---|
| MG Type Double Girder Gantry Crane | A common heavy-duty double girder gantry crane with two main girders, gantry legs, and trolley lifting mechanism. | Steel yards, machinery plants, outdoor storage yards |
| A-Type Double Girder Gantry Crane | Designed with A-shaped gantry legs and a stable structure, suitable for general heavy-duty lifting operations. | Factories, construction material yards, industrial plants |
| U-Type Double Girder Gantry Crane | Designed with U-shaped legs, providing larger side clearance and convenient handling of large objects. | Container yards, precast yards, large component handling areas |
| Rail Mounted Double Girder Gantry Crane | Travels on fixed ground rails and is suitable for regular material handling routes and large working areas. | Logistics yards, steel storage areas, production lines |
| Heavy Duty Double Girder Gantry Crane | Customized for high lifting capacity, frequent operation, large span, or demanding industrial applications. | Shipyards, power plants, heavy machinery manufacturing |
| Double Girder Semi Gantry Crane | One side travels on an elevated runway beam and the other side travels on a ground rail. | Workshops with limited space, production lines beside buildings |
Typical Technical Parameters
The following technical parameters are for general reference. ZOKECRANE can customize double girder gantry cranes according to project requirements, local site conditions, working duty, and lifting process.
| Item | Specification |
|---|---|
| Product Name | Double Girder Gantry Crane |
| Alternative Name | Double Beam Gantry Crane / Double Girder Portal Crane |
| Crane Type | MG type / A-type / U-type / rail mounted / semi gantry |
| Lifting Capacity | 5 ton, 10 ton, 16 ton, 20 ton, 32 ton, 50 ton, 75 ton, 100 ton or customized |
| Span | Customized according to site layout |
| Lifting Height | Customized according to lifting requirements |
| Working Duty | Medium duty to heavy duty |
| Main Girder Structure | Box girder structure |
| Trolley Type | Hoist trolley / winch trolley |
| Crane Traveling Type | Rail mounted traveling |
| Control Method | Cabin control / wireless remote control / pendant control |
| Power Supply | Cable reel / sliding wire / customized power supply |
| Speed Control | Single speed / dual speed / variable frequency control |
| Cantilever | Available according to working area requirements |
| Application | Steel yard, precast yard, shipyard, machinery plant, outdoor storage yard |
| Safety Devices | Overload limiter, limit switch, emergency stop, buffer, rail clamp, windproof device |
| Working Environment | Indoor or outdoor |
| Certification | ISO, CE, SGS available |
Applications of Double Girder Gantry Crane
Double girder gantry cranes are widely used in heavy-duty material handling applications. They are suitable for lifting large, heavy, and long materials in outdoor yards, manufacturing plants, steel processing facilities, shipyards, precast concrete plants, power stations, and logistics areas.
Steel Plants and Steel Storage Yards
Double girder gantry cranes are commonly used for handling steel plates, steel coils, steel pipes, steel structures, billets, beams, and metal profiles. With suitable lifting attachments such as hooks, electromagnetic lifters, clamps, or spreader beams, they can improve material handling efficiency in steel storage and processing areas.
Precast Concrete Yards
In precast concrete production and storage areas, double girder gantry cranes are used to lift and transfer concrete beams, wall panels, bridge segments, concrete pipes, slabs, molds, and other heavy precast components. Their strong structure and large span make them suitable for outdoor precast yards.
Shipyards and Marine Engineering Sites
Double girder gantry cranes can be used in shipyards for lifting ship sections, steel structures, machinery components, and large equipment. For heavy and large-scale shipbuilding projects, customized gantry crane solutions can be designed according to lifting capacity, span, and working area requirements.
Machinery Manufacturing Plants
In machinery manufacturing plants, double girder gantry cranes are used for assembling, loading, unloading, and transferring large machine parts, heavy equipment, molds, engines, frames, and fabricated components. They help improve production efficiency and reduce manual handling risks.
Power Plants and Energy Projects
Double girder gantry cranes can support equipment installation and maintenance in power plants, hydropower stations, wind power projects, and other energy facilities. They are suitable for lifting turbines, generators, transformers, pressure vessels, and large mechanical parts.
Construction Material Yards
In construction material yards, double girder gantry cranes are used for handling steel bars, formwork, pipes, concrete products, prefabricated components, and construction machinery. They provide reliable lifting performance for large-scale building material storage and transfer.
Logistics Terminals and Outdoor Storage Areas
Double girder gantry cranes can be used in logistics centers and outdoor storage areas for loading, unloading, stacking, and transferring heavy goods. They can be designed with suitable rail length, cantilever, and control systems based on the logistics process.
Large Industrial Assembly Areas
For large equipment assembly, double girder gantry cranes provide accurate positioning, stable lifting, and reliable load handling. Variable frequency control can be used for smoother operation and better positioning accuracy.
Why Choose ZOKECRANE Double Girder Gantry Crane?
Professional Gantry Crane Manufacturer
ZOKECRANE is operated by Henan Zoke Crane Co., Ltd., a professional lifting equipment manufacturer specializing in overhead cranes and gantry cranes. Our manufacturing base is located in Changyuan, Henan Province, one of China’s major crane production centers.
Customized Heavy-Duty Crane Design
ZOKECRANE can customize double girder gantry cranes according to lifting capacity, span, lifting height, working duty, site layout, rail length, cantilever length, trolley type, lifting speed, traveling speed, power supply, control method, and local working environment. We provide practical crane solutions based on customer drawings and lifting requirements.
Strong Structure and Reliable Performance
The double girder structure provides better rigidity and load-bearing performance. ZOKECRANE focuses on the strength of the main girders, leg stability, trolley operation, crane traveling mechanism, lifting mechanism, electrical safety, and overall crane durability.
Flexible Configuration Options
ZOKECRANE double girder gantry cranes can be equipped with hoist trolleys, winch trolleys, wire rope hoists, variable frequency drives, cable reels, cabin controls, remote controls, anti-collision systems, rail clamps, windproof devices, lighting systems, maintenance platforms, and customized lifting attachments.
Suitable for Outdoor Heavy-Duty Applications
For outdoor applications, ZOKECRANE can consider wind resistance, rain protection, anti-corrosion painting, rail clamps, anchoring devices, waterproof electrical components, and safe operating requirements under local conditions.
Quality Control and Certification
ZOKECRANE has established a comprehensive quality management system and obtained ISO, CE, and SGS certifications. We focus on quality control throughout design, raw material inspection, cutting, welding, machining, assembly, electrical installation, testing, painting, packaging, and shipment.
Export Experience
ZOKECRANE products have been supplied to customers in Russia, Uzbekistan, the Philippines, Bangladesh, Australia, Qatar, Tanzania, Singapore, Saudi Arabia, Brazil, Nigeria, and many other countries and regions. We understand international project requirements and provide professional support for overseas customers.
Technical Support and Service
ZOKECRANE provides crane selection support, technical drawings, foundation and rail layout suggestions, installation guidance, operation manuals, electrical diagrams, spare parts suggestions, and after-sales service support for international customers.
Frequently Asked Questions About Double Girder Gantry Crane
1. What is a double girder gantry crane?
A double girder gantry crane is a gantry crane with two main girders supported by legs and traveling on ground rails. It is usually equipped with a hoist trolley or winch trolley and is suitable for medium to heavy-duty lifting applications.
2. What is the difference between a single girder gantry crane and a double girder gantry crane?
A single girder gantry crane has one main girder and is usually suitable for light to medium-duty lifting. A double girder gantry crane has two main girders and is designed for heavier loads, larger spans, higher lifting heights, and more demanding working conditions.
Double girder gantry cranes usually provide better structural strength, higher hook height, more stable trolley operation, and stronger lifting capacity.
3. When should I choose a double girder gantry crane?
You should choose a double girder gantry crane when:
- The lifting capacity is relatively high
- A larger span is required
- A higher lifting height is needed
- The crane will work frequently
- Heavy or large materials need to be handled
- Outdoor heavy-duty lifting is required
- A trolley lifting mechanism is preferred
- A single girder gantry crane cannot meet the working requirements
4. What lifting capacity is available?
Common lifting capacities include 5 tons, 10 tons, 16 tons, 20 tons, 32 tons, 50 tons, 75 tons, and 100 tons. ZOKECRANE can also provide customized lifting capacities according to project requirements and working conditions.
5. Can the span and lifting height be customized?
Yes. The crane span, lifting height, cantilever length, rail length, lifting speed, traveling speed, trolley type, control method, and power supply can all be customized according to customer requirements and site layout.
6. Can a double girder gantry crane be used outdoors?
Yes. Double girder gantry cranes are widely used outdoors. For outdoor applications, ZOKECRANE can consider wind load, anti-corrosion treatment, rain protection, rail clamps, anchoring devices, waterproof electrical components, and other safety configurations.
7. What type of trolley is used on a double girder gantry crane?
A double girder gantry crane can be equipped with a hoist trolley or winch trolley. A hoist trolley is often suitable for medium-duty lifting, while a winch trolley is commonly used for heavy-duty lifting, higher lifting capacity, and more demanding industrial applications.
8. What control methods are available?
Common control methods include cabin control, wireless remote control, and pendant control. For heavy-duty double girder gantry cranes, cabin control and wireless remote control are commonly used. Variable frequency control can also be selected for smooth operation and accurate positioning.
9. What information should I provide for quotation?
To provide an accurate quotation, please provide:
- Lifting capacity
- Crane span
- Lifting height
- Rail length or traveling distance
- Cantilever requirement
- Indoor or outdoor working environment
- Material to be lifted
- Daily working hours or working duty
- Lifting speed and traveling speed requirements
- Power supply voltage and frequency
- Control method requirement
- Destination country or port
- Site drawings, if available
- Any special requirements
10. What safety devices are included?
Common safety devices include:
- Overload limiter
- Upper and lower limit switches
- Crane traveling limit switch
- Trolley traveling limit switch
- Emergency stop
- Buffer
- Rail clamp for outdoor use
- Windproof anchoring device
- Anti-collision device, if required
- Phase sequence protection
- Voltage loss protection
- Warning light and alarm
- Safety hook latch
- Maintenance platform and safety railing
Export and Logistics FAQ for ZOKECRANE Double Girder Gantry Crane
1. Can ZOKECRANE export double girder gantry cranes overseas?
Yes. ZOKECRANE has supplied crane equipment to customers in Russia, Uzbekistan, the Philippines, Bangladesh, Australia, Qatar, Tanzania, Singapore, Saudi Arabia, Brazil, Nigeria, and many other countries and regions. We can provide export packaging, international shipping support, technical documents, and project support for overseas customers.
2. How is the double girder gantry crane packed for export?
For export shipment, main girders, support legs, lower end beams, trolley components, lifting mechanisms, traveling mechanisms, electrical cabinets, cables, bolts, and accessories are packed according to sea transportation and long-distance delivery requirements.
Steel structures are generally wrapped, protected, marked, and fixed to reduce damage during transportation. Electrical parts, motors, reducers, brakes, control cabinets, small components, and spare parts are usually packed in wooden cases or export-standard packages.
3. Can the double girder gantry crane be shipped by container?
Yes, many double girder gantry cranes can be shipped by container if the structure is designed in sections. For large-span or heavy-duty cranes, some parts may require open-top containers, flat rack containers, or bulk cargo shipment.
ZOKECRANE can design transport sections according to container size, shipping requirements, installation convenience, and cost control.
4. What shipping methods are available?
Common shipping methods include:
- Standard container shipping
- Open-top container shipping
- Flat rack container shipping
- Bulk cargo shipping
- Land transportation
- Railway transportation
- Multimodal transportation
The suitable shipping method depends on crane span, girder section length, leg size, trolley weight, total weight, destination country, delivery schedule, and shipping cost.
5. Can ZOKECRANE help arrange shipment to our destination port?
Yes. ZOKECRANE can assist with shipment arrangement according to the agreed trade terms. Customers may also choose their own freight forwarder.
6. What export documents can ZOKECRANE provide?
ZOKECRANE can usually provide the following documents:
- Commercial invoice
- Packing list
- Bill of lading
- Certificate of origin, if required
- Product certificate
- Quality inspection report, if required
- CE documents, if required
- Operation manual
- Installation drawings
- Electrical drawings
- Foundation and rail layout drawings
- Packing drawings
- Spare parts list
- Test report, if required
The final document list can be prepared according to customer requirements and destination country regulations.
7. Can ZOKECRANE provide foundation and rail layout drawings?
Yes. ZOKECRANE can provide foundation and rail layout drawings based on the crane design. Customers should confirm local civil construction requirements and ensure that the foundation and rail installation meet the project’s load and safety requirements.
8. Can ZOKECRANE provide installation guidance?
Yes. ZOKECRANE can provide installation drawings, operation manuals, electrical drawings, foundation and rail layout drawings, and technical guidance. For overseas projects, installation support can be discussed according to project requirements.
9. What should be checked before installation?
Before installation, customers should check:
- Foundation condition
- Rail installation position and straightness
- Rail gauge and elevation difference
- Power supply condition
- Installation tools and lifting equipment
- Package quantity and component condition
- Main girder sections
- Support legs and lower end beams
- Trolley and lifting mechanism
- Crane traveling mechanisms
- Electrical cabinet and cables
- Technical drawings and installation instructions
- Site safety conditions
10. What should we check after receiving the crane?
After receiving the double girder gantry crane, customers should check:
- Package condition
- Quantity of components
- Main girder sections
- Support legs
- Lower end beams
- Hoist trolley or winch trolley
- Lifting mechanism
- Crane traveling mechanisms
- Electrical cabinets and control components
- Motors, reducers, and brakes
- Cables and accessories
- Bolts and fasteners
- Rails and rail accessories, if included
- Nameplates and markings
- Technical documents and drawings
- Spare parts, if included
If any damage or missing parts are found, please contact ZOKECRANE promptly with photos, packing list, and shipping documents.
11. How long does production and delivery take?
Production and delivery time depends on crane type, lifting capacity, span, lifting height, cantilever length, rail length, trolley type, electrical system, customization requirements, order quantity, and production schedule.
After confirming the technical requirements and commercial terms, ZOKECRANE can provide a clear production and delivery plan.