New Chinese style A-frame double-girder gantry crane

Weihua New Chinese Style A-type double-girder gantry crane is a revolutionary product launched by Weihua for the global high-end market. It breaks away from the traditional impression of cranes being “bulky, heavy, coarse, and笨拙”, deeply integrating the lightweight and precision advantages of European cranes with the high reliability and long life of general-purpose cranes, aiming to provide customers with a material handling solution that offers excellent performance, economy, energy efficiency, and intelligence.

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.”