Low Noise Double Girder Overhead Crane for Indoor Working Environments

A double girder overhead crane is a robust lifting solution engineered for medium to heavy-duty material handling tasks. It features two parallel bridge girders, providing superior load support and enhanced stability during operation. This structural design enables the crane to handle larger capacities and longer spans, making it ideal for use in steel plants, heavy machinery workshops, power stations, and large-scale warehouses.

One of the major advantages of a double girder overhead crane is its greater hook height. Since the trolley and hoist are mounted between or on top of the girders, it typically offers an additional 18 to 36 inches of lifting height, maximizing the available workspace. This setup also ensures smoother and more efficient movement of heavy loads across wide areas.

Double girder cranes are available in top-running or under-running designs. The top-running type provides the best overhead clearance and the highest possible lifting height. Though it requires a higher investment than a single girder crane, the double girder overhead crane offers exceptional durability, safety, and performance—making it the preferred choice for demanding industrial applications.

1. Exceptional Stability and Structural Strength

The heavy duty overhead crane is engineered for maximum stability and system strength, ensuring safe and reliable lifting operations under demanding conditions. It features torsionally rigid trolleys optimized for overhead crane applications, available with either top or side connections to meet different installation needs. For wheel sizes up to Ø250 mm, the crane uses a durable profile version, while larger wheels (from Ø320 mm) are integrated into a welded box-section girder reinforced with bulkhead plates for added rigidity. The flange travel wheels, designed in accordance with EN1563 GJS 700-2 standards, provide smooth travel characteristics and minimal wear on both the runway and wheels, extending the system’s service life.

2. Cost-Effective Design and Operation

This heavy duty overhead crane offers outstanding value through intelligent design and efficient operation. It supports both rope hoists with advanced electrical systems and assistance features, and chain hoists from the DC portfolio for loads up to 5 tons. The compact hoist design ensures optimal use of available height and space, enabling large hook paths and reduced approach dimensions. Thanks to optimized structural design, both construction and operating costs are significantly minimized. Optional features include accessible traveling hoists that simplify maintenance, especially beneficial for double girder crane systems.

3. Efficient and Reliable Performance

The crane ensures low wear on wheels and tracks through maintenance-free drives, delivering consistent performance over years of operation. With the Demag Equipment App (DEA), users can easily monitor system performance and parameter settings. Energy is supplied via a highly flexible flat cable with integrated protective conductor, ensuring safe and reliable power delivery. Optional enhancements, such as power chain systems for energy and signal transmission or wireless control units with display interfaces, further improve efficiency. Moreover, the Bluetooth-enabled inverter setup allows for quick commissioning and parameter adjustments via mobile app, making this heavy duty overhead crane both intelligent and service-friendly.