The Weihua New Chinese Style A-type double-girder gantry crane adopts a structural form featuring double girders with offset rails and a lightweight hoist trolley. Its variable frequency speed control system provides smooth acceleration characteristics and multiple operating speeds, ensuring平稳 starting and braking, simple operation, and accurate positioning. By utilizing high-quality, high-grade components, the product is durable, safe, and reliable, significantly reducing crane maintenance costs. Simultaneously, the total installed power (energy consumption) is also reduced, leading to lower operating costs. This crane is mature, reliable, easy to operate, runs smoothly, and incorporates advanced technology.

Difference between New Chinese Style and Traditional

Advantages & Features

Structural Composition

The Weihua New Chinese Style A-type double-girder gantry crane is mainly composed of the following modular components, featuring a compact structure that facilitates transport, installation, and maintenance:

• Gantry Structure: Consists of two box-type main girders, A-type flexible and rigid legs, and a bottom crossbeam. The整体 adopts a low headroom, offset rail design. The structure is optimized using finite element analysis, achieving maximum lightweighting while ensuring strength and stiffness.
• Crane Travel Mechanism: Drives the entire crane longitudinally along the ground rails. Uses three-in-one geared motors for separate drives, resulting in a compact structure. Some large-tonnage models adopt an advanced structure combining multi-stage equalizing beams and bogies, connected via half couplings, ensuring uniform load distribution on wheels, smooth operation, and good adaptability to rails.
• Hoist Trolley: Runs on the main girder rails, responsible for lifting and transversely moving the load. Its drive mechanism is typically integrated for smooth operation.
• Hoisting Mechanism: The core power unit of the crane. Uses high-quality components such as hardened gear reducers, dedicated inverter motors, steel drums, and compacted strand wire ropes. Supports synchronous control for dual lifting points (on large-tonnage models), enabling simultaneous lifting and lowering for safer and more stable operation.
• Control System: The entire crane uses variable frequency speed regulation + PLC (Programmable Logic Controller) control. This forms the foundation for intelligence, supporting smooth starting/braking, speed adjustment, and various safety interlocks. Optional AICrane intelligent system enables automatic positioning and anti-sway.
• Operating System: The ergonomically designed operator’s cab offers a wide field of vision. Multiple operation modes are available, including cab operation, ground pendant control, and wireless remote control, adapting to different working condition requirements.

Applications

The Weihua New Chinese Style A-type double-girder gantry crane has been widely used in many fields with stringent requirements for equipment performance, safety, and efficiency:

• Steel & Metallurgy Industry: Serves the outdoor transfer and loading/unloading of steel billets, coils, scrap steel, etc. Its high-temperature resistant design and excellent reliability fully adapt to the demanding conditions of coking, ironmaking, steel rolling, and other processes in steel enterprises.
• Major Infrastructure Construction: Widely used for loading, unloading, and handling heavy components in fields such as railway construction, highway bridge building, water conservancy projects (e.g., South-to-North Water Diversion), and port terminals. Its precise lifting capability ensures the safety and efficiency of large component installation.
• Energy & Heavy Manufacturing: Used for the assembly and transfer of large components in wind power equipment manufacturing, nuclear power construction, and heavy machinery plants. The lightweight design reduces plant structure investment, and intelligent features assist in precision assembly.
• Logistics & Warehousing: Suitable for loading/unloading operations of containers, packaged goods, or bulk materials in large open-air warehouses and logistics yards. Efficient and smooth operation significantly improves logistics turnover efficiency.
• National Major Projects & High-End Equipment: Has successfully served national key projects such as satellite launch bases (for lifting rockets and spacecraft) and high-speed maglev train test lines, proving its极高的 safety and technological advancement.
• International “Belt and Road” Projects: Products have been exported to over 130 countries and regions worldwide, deeply participating in industrial construction in countries along the “Belt and Road,” such as steel base projects in Indonesia, representing Chinese high-end equipment “going global.”

Advantages & Features

Structural Composition

Weihua A-frame double-girder gantry crane for construction projects adopts a classic box-type or triangular truss structural design, achieving lightweight construction while ensuring high structural strength and good wind resistance. It mainly consists of the following systems:

• Gantry Structure: Includes the main girder, legs, upper/lower end beams, and traveling bogies. The main girder often uses a triangular truss structure, offering high strength, light weight, and strong wind resistance. Legs can be box-type or steel pipe structures to ensure overall stability.
• Hoisting Mechanism: The core is the trolley system, featuring a compact structure and light deadweight. Specifically designed for lifting large, heavy components like预制 beams and bridge decks, ensuring smooth and precise lifting.
• Crane Travel Mechanism: Drives the entire crane longitudinally along rails laid on piers or the ground, operating smoothly and adapting to the complex conditions of construction sites.
• Trolley Travel Mechanism: Drives the lifting trolley transversely along the main girder rails, enabling precise positioning of the load within the work area.
• Operator’s Cab and Control System: Uses a closed operator’s cab, providing a safe and comfortable environment for the operator, equipped with adjustable seats, insulated flooring, tempered glass, and fire extinguishers. The control system ensures coordinated operation of all mechanisms and can integrate advanced anti-sway and positioning technologies.

Specifications

Applications

Weihua A-frame double-girder gantry crane for construction projects primarily serves the fields of national infrastructure construction and heavy equipment hoisting.

• Highway and Railway Bridge Construction: Used for hoisting and erecting预制 beams, as well as installing large bridge deck components.
• Water Conservancy and Hydropower Projects: Serves the hoisting of dam gates, large pipelines, and other heavy hydraulic structures.
• Large Building and Venue Construction: Used for lifting large steel structures, precast concrete components, etc.
• Heavy Equipment Manufacturing and Installation: For handling and assembling large components in heavy machinery factories or equipment installation sites.

Advantages & Features

• A lifting capacity of 2000t, a total lifting height of 90m, and a span of 62m, solving the challenges of ultra-large lifting operations.
• Adopts a double-trolley design, with each trolley equipped with two hoisting mechanisms, ensuring that lifted heavy objects can be safely lowered to the ground under extreme conditions. The manufacturing process is monitored throughout using the “Nuclear Industry Quality Management System” to ensure product quality is fully controlled.
• Achieves zero-speed braking for all mechanisms, reducing impact-induced loads to zero, ensuring the stability of the travel and hoisting mechanisms, and meeting the precision requirements for equipment installation.
• Utilizes four-point synchronous lifting technology, measuring the position of each lifting point to ensure synchronized operation.
• Equipped with a crane management safety monitoring 5G data information management system, enabling functions such as overall data statistics, real-time monitoring of product working conditions, historical data query, quick fault repair, and predictive maintenance of equipment.

Applications

Weihua’s ultra-large gantry cranes mainly serve national strategic and cutting-edge industries with extreme equipment demands:

• Offshore Wind Power & Marine Engineering: This is currently the primary application area, used for lifting巨型 components such as towers, blades, and jackets for large offshore wind power projects.
• Shipbuilding: Particularly suitable for the sectional lifting and assembly of ultra-large vessels such as large cruise ships and LNG carriers.
• Major Infrastructure Construction: Serves national key projects such as the West-to-East Gas Pipeline, South-to-North Water Diversion, and Hangzhou Bay Bridge.
• Heavy Equipment, National Defense & Aerospace: Used in heavy machinery, nuclear power, petrochemicals, national defense, and aerospace for lifting critical equipment such as large reactors and spacecraft components.

If you have technical questions about specific tonnage cranes or have a project scenario in mind, contact us for a free, non-standard customized lifting solution.

Structural Composition

Weihua A-type double-girder gantry crane is mainly composed of the following core parts:

• Bridge: As the main load-bearing structure, it typically consists of two box-type welded main girders and two box-type end carriages. Trolley rails are laid on the main girders.
• Gantry Frame (Legs): Adopts an A-type structure, made of steel plates welded into variable cross-section box-type legs. The lower ends connect to the bottom cross beam, and the upper ends are connected through a portal frame to ensure the rigidity of the overall structure. Components are typically connected using high-strength bolts.
• Hoisting Trolley: Runs on the rails of the main girder, responsible for lifting and transversely moving the load. Its drive mechanism is usually integrated for smooth operation.
• Crane Travel Mechanism: Drives the entire crane longitudinally along the ground rails. General-purpose A-type products often use separate drives.
• Electrical Equipment: Includes systems for drive, control, and lighting. Power supply methods include cable reels and safe busbars, which can be selected according to needs.
• Operator’s Cab: Usually suspended below the main girder, providing the operator with a clear view and an ergonomic working environment.

Advantages & Features

Technical Specifications

Applications

Weihua’s double-girder gantry crane series products are very widely used, covering almost all industrial fields requiring heavy material handling. Core application scenarios include:

• Steel & Metallurgy Industry: Serves the open-air transfer and loading/unloading of billets, coils, scrap steel, etc. Its high-temperature resistant design and excellent reliability fully adapt to the harsh conditions across the entire steel enterprise process, including coking, ironmaking, and steel rolling.
• Major Infrastructure Construction: Widely used for loading/unloading and handling heavy components in railway construction, road bridge erection, water conservancy projects (e.g., South-to-North Water Diversion), ports, and terminals. Its precise lifting capability ensures the safety and efficiency of large component installation.
• Energy & Heavy Manufacturing: Used for assembly and transfer of large components in wind power equipment manufacturing, nuclear power construction, and heavy machinery plants. The lightweight design reduces plant structure investment, and intelligent functions aid in precision assembly.
• Logistics & Warehousing: Suitable for large open-air warehouses and logistics yards for loading/unloading containers, packaged goods, or bulk materials. Efficient and smooth operation significantly improves logistics turnover efficiency.
• National Major Projects & High-End Equipment: Has successfully served national key projects such as satellite launch bases (for hoisting rockets and spacecraft) and high-speed maglev test lines, proving its extremely high safety and technological advancement.
• International “Belt and Road” Projects: Products have been exported to over 130 countries and regions worldwide, deeply participating in industrial construction in countries along the “Belt and Road”, such as steel base projects in Indonesia, representing Chinese high-end equipment “going global”.

Advantages & Features

Structural Composition

Taking a typical ultra-large tonnage product as an example, its core components include:

1. Main Girder Structure: Designed with a single main girder or double main girders to bear enormous loads.
2. Hoist Trolley System: This is key to achieving complex lifting functions. For example, the 2000t gantry crane is equipped with three trolleys (double trolleys on top and a single trolley below), enabling single-hook lifting, multi-hook tandem lifting, and空中 turning through combination.
3. Crane Travel Mechanism: Drives the entire machine along the rails. For equipment with ultra-large spans (e.g., 200 meters), the crane mechanism uses multi-stage balance beams (e.g., four-stage) combined with dozens of wheel sets for drive, ensuring stable operation.
4. Metal Structural Components: Includes support structures such as rigid legs and flexible legs, with single components potentially weighing over a thousand tons.
5. Intelligent Control System: Integrates intelligent systems such as anti-sway automatic positioning and safety monitoring, enabling precise control and safety management.

Applications

Weihua shipbuilding gantry cranes primarily serve industries with core needs for large-scale equipment lifting:

• Shipbuilding & Offshore Engineering Construction: Used for docking, handling, and turning large hull blocks, as well as the construction of floating facilities like offshore platforms.
• Offshore Wind Power Industry: Used for lifting ultra-large offshore wind power jackets, substations, wind turbine components, etc.
• Heavy Steel Structure & Equipment Manufacturing: Used for the assembly and shipment of heavy steel structures such as large bridges and modular buildings.
• Major Infrastructure Construction: Serves large domestic and international ports, docks, and other infrastructure projects.

In summary, Weihua shipbuilding gantry cranes represent its comprehensive strength in the high-end heavy equipment sector. Free professional lifting solutions available.

Advantages & Features

Main Applications

• Ports: Used for loading and unloading containers, cargo ships, etc., to improve logistics efficiency.
• Shipbuilding Industry: For hull assembly, dismantling, and other operations, due to its ability to handle very heavy components.
• Steel Industry: Suitable for handling, loading, and unloading large items such as steel plates and sections.
• Water Conservancy Projects: Includes handling heavy equipment and materials during the construction and maintenance of dams, channels, etc.
• Mines: Used for transporting, loading, and unloading resources such as ore and coal.

Structural Composition

Weihua U-type double-girder gantry crane is mainly composed of the following core parts:

• Metal Structure: Includes the rigid gantry consisting of double main girders made of box girders, U-type legs and bottom cross beams, and end carriages.
• Hoisting Mechanism: The core is the lifting trolley, containing hoisting winch, hook, etc. Heavy-duty models may use synchronized double lifting points.
• Travel Mechanism: Includes the crane travel mechanism (drives the entire machine longitudinally along ground rails, often using a multi-stage平衡梁 and bogie组合 structure) and the trolley travel mechanism (drives the lifting trolley transversely along the main girder).
• Electrical & Control System: Contains drive motors (often using variable frequency motors), PLC control system, safety protection devices, and control equipment in the operator’s cab.

Advantages & Features

Technical Specifications

Applications

Weihua U-type double-girder gantry crane, due to its robust structure and strong adaptability, is widely used in the following fields:

• Logistics Transfer & Storage Yards: Large-scale cargo loading/unloading and transfer in open-air warehouses, railway freight yards, and logistics parks.
• Ports & Terminals: Container berth terminals, ship-to-shore loading/unloading, and handling of containers and heavy-lift items in storage yards.
• Major Infrastructure Construction: Material lifting for national key projects such as bridge construction (e.g., Hangzhou Bay Bridge) and water conservancy projects (e.g., South-to-North Water Diversion).
• Metallurgy & Heavy Industry: Lifting, loading, and unloading of steel billets, scrap steel, and raw materials in steel enterprises, adaptable to harsh environments like high temperatures.
• Other Industrial Fields: Widely used in large workshops or open-air sites in industries such as machinery, metallurgy, mining, electric power, petroleum, and chemical engineering.

As a leading enterprise in the domestic heavy lifting equipment industry, Weihua Group possesses strong customization capabilities. Its dam crest gantry cranes are renowned for high reliability, large lifting capacity, and high lifting height, meeting the complex and stringent working condition requirements of hydropower projects.

Advantages & Features

Structural Composition

A typical dam crest gantry crane mainly consists of the following major systems:

Applications

The application of Weihua dam crest gantry cranes is highly focused and specialized:

• Core Application Field: Large-scale Water Conservancy and Hydropower Hub Projects. Primarily used for installing, maintaining, and operating gates on hydroelectric dam crests, as well as for lifting and maintaining core equipment such as hydro-turbine generator units and transformers.
• Extended Application Fields: Other Major Infrastructure. Similar ultra-large tonnage, high-precision gantry crane technology is also applied in offshore wind power equipment lifting (e.g., Weihua’s 3000-ton gantry crane), large-scale bridge construction, port docks, and heavy equipment manufacturing, situations requiring precise handling of ultra-heavy and oversized components.

Features & Advantages

Applications

This type of equipment mainly serves national key projects requiring large-scale deep shaft construction:

• Pumped Storage Power Stations
  Core application area. Used for the construction of key sections such as headrace shafts and ventilation shafts in power stations, for hoisting equipment and components. For example, it has been applied in projects like Zhejiang Jinyun, a certain pumped storage power station, and the Beijing Olympic supporting project Zhanghewan Power Station.
• Other Large-Scale Hydraulic/Underground Projects
  Theoretically applicable to other engineering fields requiring deep shaft construction, such as water conservancy and hydropower, mining, and tunnel engineering.