Double Girder Overhead Crane

The double girder overhead crane consists of two main girders, end carriages, hoisting mechanism (typically double hooks or large-capacity electric hoists/winches), crane travelling mechanism, and electrical control system. Its structure features high rigidity and large load capacity, with lifting capacity generally ranging from 5 tons to over 500 tons, and duty class up to A6–A8. It is suitable for heavy, high-frequency, and high-intensity material handling, widely used in heavy industries such as steel, machinery, shipbuilding, power, and ports.

1.Iron & Steel and Metallurgical Industry Lifting ladles, steel coils, plates, billets, scrap steel and other high-temperature or heavy materials, suitable for high-temperature, dusty and continuous operation environments.

2.Heavy Machinery Manufacturing & Equipment Industry Used for lifting, assembling and flipping heavy components such as large machine tools, mining machinery, construction machinery, and wind power equipment.

3.Shipbuilding & Offshore Engineering For assembling, closing and tilting hull sections, large steel plates, engines, propellers and other heavy components, achieving long-span and high-precision lifting.

4.Energy & Power and Port Logistics Lifting rotors, stators and transformers in power plants (nuclear, thermal, hydroelectric); loading/unloading and transferring containers, heavy bulk cargo and large structural parts at port yards and railway freight stations.

1.Large load capacity, high duty class The double girder structure provides excellent rigidity and strength, lifting capacity up to over 500 tons, duty class up to A8, suitable for continuous and high-intensity operations.

2.Long span, flexible headroom Compared with single girder, double girder cranes can easily achieve spans over 30 meters, and the crane height can be optimized to improve workshop space utilization.

3.Smooth operation, precise positioning Equipped with frequency conversion and intelligent control technology, achieving smooth start/stop and millimeter-level positioning, meeting the requirements of precision assembly and heavy workpiece alignment.

4.High reliability, easy maintenance Key components adopt modular design and maintenance-free technology, low failure rate; the double girder structure allows convenient walkway arrangement, making daily inspection and maintenance safer and easier.

5.Strong adaptability, customizable Can be equipped with explosion-proof, insulation, high-temperature resistance, magnetic lift, grab, special spreaders and other functions to meet special environments such as metallurgy, chemical, and explosive atmospheres.