Gantry Cranes
The Double-Girder Gantry Crane consists of two parallel main girders, supporting legs on both sides, and end carriages that travel along ground-level rails. The hoisting trolley traverses along either the upper or lower flange of the main girders, offering lifting capabilities characterized by large spans and heavy loads—performance parameters that far exceed the operational limits of single-girder gantry cranes.
Weihua Group is China's largest crane manufacturing enterprise, producing a comprehensive range of double-girder gantry cranes in strict compliance with domestic and international standards, including GB, ISO, FEM, DIN, and CMAA. Every Weihua double-girder gantry crane is engineered with a primary focus on high reliability, low energy consumption, and a long service life, thereby ensuring maximum production efficiency and a strong return on investment for our customers.
High Lifting Capacity: Single-lift capacity of up to 800 tons, capable of handling ultra-heavy-duty operations.
Wide Span: Main girder spans of up to 40 meters, covering expansive work areas without the need for intermediate supports.
High Precision: The double-girder structure features high rigidity and minimal deflection, enabling millimeter-level positioning accuracy.
Structural Versatility: Available in a wide variety of configurations, including A-frame, U-frame, European-style, box-girder, truss, semi-gantry, and container gantry crane designs.
Comprehensive Customization: Lifting height, rail gauge, trolley type, electrical systems, and protection ratings can all be fully customized to meet specific project requirements.
Weihua After-Sales Support: Global service network, rapid spare parts supply, and remote diagnostic support.
Every Weihua double girder gantry crane is built from precision-engineered components. Understanding the main parts helps buyers evaluate quality and plan maintenance schedules.
| Component | Description |
| Main Girders (2×) | Welded box-section or truss steel beams spanning the full width; carry the hoist trolley load |
| Gantry Legs | A-frame, U-frame, or straight legs; transmit loads to the end trucks |
| End Trucks / Bogies | Travel mechanisms with driven and non-driven wheels running on ground rails |
| Hoist & Trolley | Wire rope hoist or chain hoist mounted on a crab trolley; provides lifting and cross-travel |
| Long-Travel Drive | Motor, gearbox, and drive wheel assemblies for crane travel along the gantry rails |
| Rail System | Ground-mounted crane rails (P24–QU120) with rail clips and anti-creep devices |
| Electrical System | Main panel, VFD drives, festoon or busbar cable system, control desk or remote control |
| Cab / Operator Station | Enclosed or open cab with joystick controls, visibility, lighting, and safety interlocks |
| Safety Devices | Overload limiter, travel limit switches, anti-collision sensors, anemometer, emergency stop |
| Buffer & End Stop | Hydraulic or rubber buffers at rail ends; steel end stops prevent overrun |
Weihua manufactures eight primary types of double-girder gantry cranes, allowing users to select the most suitable model based on site conditions, cargo characteristics, and operational requirements.
The Double-Girder A-Frame Gantry Crane is the most widely utilized type of gantry crane for heavy-duty outdoor operations. Its A-frame leg structure offers exceptional resistance to lateral wind loads and dynamic impact loads, making it widely applicable in environments such as shipyards, precast concrete yards, steel structure fabrication plants, and open-air storage yards.
Key Features:
| Parameter | Specification |
| Lifting Capacity | 10 ~ 500 ton |
| Span | 10 ~ 40 m |
| Lifting Height | 6 ~ 30 m |
| Working Class | A4 ~ A6 |
The U-Type Double-Girder Gantry Crane features upright vertical legs, forming a distinctive U-shaped gantry structure. This design provides maximum clearance at the base, allowing vehicles, forklifts, and personnel to pass freely beneath the crane; it is ideally suited for factory workshops, maintenance depots, and assembly areas where unobstructed ground-level access is required.
Key Features:
| Parameter | Specification |
| Lifting Capacity | 5 ~ 200 ton |
| Span | 6 ~ 35 m |
| Lifting Height | 5 ~ 20 m |
| Working Class | A3 ~ A5 |
The European-style double-girder gantry crane features a low-headroom electric hoist compliant with FEM/DIN standards, a lightweight main girder, and variable frequency drives. Offering superior energy efficiency and a compact footprint, it is the preferred choice for buyers seeking modern equipment, low maintenance costs, and compliance with European engineering standards.
Key Features:
| Parameter | Specification |
| Lifting Capacity | 5 ~ 100 ton |
| Span | 6 ~ 35 m |
| Lifting Height | 5 ~ 20 m |
| Working Class | A3 ~ A6 (FEM 1Am ~ 4m) |
The MG Box-Girder Double-Beam Gantry Crane is a classic heavy-industry model designed in accordance with Chinese GB/T standards. Its enclosed box-section main girder features exceptional rigidity and torsional resistance, making it the preferred solution for continuous, heavy-duty operations in steel mills, hydroelectric projects, and large-scale manufacturing enterprises.
Key Features:
| Parameter | Specification |
| Lifting Capacity | 10 ~ 800 ton |
| Span | 10 ~ 40 m |
| Lifting Height | 5 ~ 30 m |
| Working Class | A4 ~ A7 |
The MG Truss-Type Double-Girder Gantry Crane replaces the solid box-girder main beam with an open truss structure, significantly reducing both the crane's dead weight and wind resistance. This design offers distinct economic advantages in applications involving large spans or outdoor environments subject to high wind loads.
Key Features:
| Parameter | Specification |
| Lifting Capacity | 10 ~ 300 ton |
| Span | 15 ~ 40 m |
| Lifting Height | 6 ~ 25 m |
| Working Class | A4 ~ A6 |
The BMG semi-gantry crane (single-leg gantry crane) features one supporting leg that travels along a ground-level rail, while the other end of the main girder travels along an elevated rail mounted on a wall or structural columns. This semi-gantry configuration represents an ideal, space-saving solution for sites where spatial constraints or specific site conditions preclude the installation of a full gantry crane.
Key Features:
| Parameter | Specification |
| Lifting Capacity | 5 ~ 100 ton |
| Span | 6 ~ 30 m |
| Lifting Height | 5 ~ 18 m |
| Working Class | A3 ~ A5 |
The Rail-Mounted Gantry Crane (RMG) is a fixed-rail container handling system widely utilized at port terminals, railway freight yards, and intermodal logistics centers. Weihua RMG cranes are capable of stacking containers up to six high, spanning multiple rows of container stacks and truck lanes, and supporting high-frequency automated operations.
Key Features:
| Parameter | Specification |
| Lifting Capacity | 30.5 ~ 65 ton (20'/40'/45' containers) |
| Span | 20 ~ 60 m (covering 4–8 container rows) |
| Lifting Height | Up to 30 m (6 containers high) |
| Working Class | A6 ~ A7 |
| Automation Level | Manual / Semi-automatic / Fully automatic |
RTG (Rubber-Tyred Gantry) cranes utilize rubber tires for mobility rather than fixed rails, thereby eliminating the need for ground-based rail infrastructure and allowing for flexible repositioning within the terminal yard. Weihua RTG cranes are available with either diesel-electric or fully electric drive systems and offer various levels of automation, making them ideal for modern container terminals that prioritize flexible layouts and high-density stacking.
Key Features:
| Parameter | Specification |
| Lifting Capacity | 30.5 ~ 50 ton |
| Span | 23.47 m ~ 30 m (5–7 container rows + 1 truck lane) |
| Lifting Height | Up to 18.2 m (1 over 5 stacking) |
| Drive Type | Diesel-electric / Full-electric / Hybrid |
| Working Class | A6 ~ A7 |
The quotation for a double-girder gantry crane depends on several key factors. Weihua provides transparent and detailed technical-commercial quotations, free of any hidden fees.
Request a Free Quote from Weihua: Please provide the required lifting capacity, span, lifting height, working class, and site conditions. Weihua engineers will respond within 24 hours with a detailed technical and commercial proposal.
| Crane Type | Indicative Price Range (USD) |
| Standard MG Box Type (10–50 t) | USD 20,000 – USD 200,000 |
| A-Frame Heavy Duty (100–500 t) | USD 23,000 – USD 215,000 |
| European Type (5–50 t) | USD 22,000 – USD 210,000 |
| RMG Container Crane | USD 55,000 – USD 160,000 |
| RTG Container Crane | USD 42,000 – USD 138,000 |
Note: Prices above are indicative only and subject to technical specifications, market conditions, and project scope. Contact Weihua for a formal quotation.
Standard product models do not always perfectly align with the specific requirements of actual projects. Weihua’s engineering team offers a comprehensive range of customization services for double-girder gantry cranes across various industries.
Common Customization Options:
Weihua Customized Service Process:
Weihua Group is the largest manufacturing enterprise in China's crane industry and one of the world's leading suppliers of overhead and gantry cranes. Founded in 1988 in Changyuan City, Henan Province, Weihua Group exports its products to over 110 countries and regions worldwide and has evolved into a major corporate group with significant international influence.
Weihua Group maintains long-standing partnerships with global industrial leaders—including COSCO Shipping, CNPC, CSCEC, and Samsung Heavy Industries—and supplies products and services to major port authorities across Asia, Europe, the Americas, and Africa.
| Contact Weihua Group today to discuss your double girder gantry crane requirement. Our engineering sales team will provide a professional solution, competitive pricing, and fast delivery to your project site anywhere in the world. |
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