In the manufacturing of heavy structures, installation of large-scale equipment, and lifting of ship sections, handling loads weighing hundreds of tons places extremely high demands on lifting capacity, lifting precision, operational stability, and safety margins. Traditional fixed gantry cranes are often restricted by site height and rail conditions, making them less suitable for flexible operations in complex working environments. General-purpose lifting equipment, meanwhile, may fall short in positioning accuracy, safety redundancy, and adaptability to oversized loads, creating a major challenge for both project efficiency and operational safety.
To meet the growing demand for high lifting capacity, precise control, and reliable safety in heavy-duty lifting operations, Haitai Heavy Industry designed and successfully delivered a customized 400 ton hydraulic gantry crane for its customer. With a rated lifting capacity of 400 tons, the crane is designed to handle the lifting, transfer, and precise positioning of large steel structures, heavy equipment, and other oversized loads. By integrating several key technologies, the system provides the customer with a more efficient, safer, and more flexible solution for heavy-duty lifting operations.
The delivered 400 ton hydraulic gantry crane is built around a rated lifting capacity of 400 tons, enabling it to handle the lifting and transfer of oversized loads such as large steel structures and heavy industrial equipment.
Compared with conventional lifting equipment, this crane places greater emphasis on overall stability and lifting control under extremely heavy loads. Taking into account the requirements for lifting, movement, and precise positioning during actual operations, the crane has been specifically configured in terms of structural design, hydraulic system, and control system. This allows it to support demanding heavy-duty lifting operations with high workloads and extended operating cycles.
The hydraulic lifting system is one of the key technologies of this 400 ton gantry crane.
The crane uses a multi-cylinder synchronized hydraulic lifting system combined with closed-loop synchronization control. The lifting points are coordinated and precisely controlled in real time, allowing the hydraulic cylinders to operate in synchronization even under extremely heavy loads. This helps keep the crane stable throughout the lifting process while reducing load deviation and unwanted movement caused by uneven lifting.
At the same time, precise lifting control improves positioning accuracy during the installation, assembly, and alignment of large components, providing a reliable foundation for precision lifting of heavy structures.
Different projects can vary considerably in terms of load dimensions, required lifting height, and available working space. To address these differences, the crane adopts a modular gantry structure and lifting-column design.
The equipment can be configured according to the dimensions of the load and the specific requirements of the lifting operation. Without requiring extensive modification of the worksite, it can better adapt to different operating environments. This structural approach not only improves the crane’s adaptability to different working conditions, but also makes more effective use of limited site space, providing greater flexibility for large-load lifting operations.
During heavy-duty lifting operations, coordination between the two sides of the crane and their respective lifting and traveling systems has a direct impact on operational stability. For this reason, the 400 ton hydraulic gantry crane is equipped with coordinated dual-girder control to improve synchronization and overall operating consistency.
Under heavy-load conditions, the two girders and associated operating mechanisms can work in coordination, helping keep large loads more stable during lifting and transfer. This reduces safety risks associated with uneven or unsynchronized movement while providing a more reliable basis for the precise positioning of large components.
For a 400 ton heavy-duty lifting system, safety is a fundamental consideration throughout both design and manufacturing.
The delivered crane incorporates more than 20 safety protection functions, including overload protection, travel and lifting limit protection, wind-speed warning, anti-tipping monitoring, and fault self-diagnosis. Together, these functions create a comprehensive safety system covering the equipment structure, hydraulic system, electrical controls, and operating-status monitoring.
The real-time monitoring and safety interlock functions continuously track the operating condition of the equipment. If an abnormal condition occurs or a preset safety limit is reached, the system can respond with the appropriate protective measures. This further reduces operational risks during high-load and long-duration lifting operations.
Unlike standardized lifting equipment, heavy-duty lifting projects are often influenced by a wide range of factors, including load dimensions, available site space, lifting height, travel routes, and the actual lifting process. For this reason, a suitable heavy-duty lifting system needs to be designed around the specific requirements of each project.
Drawing on years of experience in the development and manufacturing of heavy lifting equipment, Haitai Heavy Industry developed the 400 ton hydraulic gantry crane around the customer’s actual working conditions. The overall solution covers the crane structure, hydraulic lifting system, control method, and safety configuration to ensure that the equipment meets the specific requirements of the project.
The successful delivery of this crane demonstrates Haitai Heavy Industry’s capabilities in the design and manufacture of ultra-heavy lifting equipment, while further expanding the company’s application experience in lifting large steel structures, heavy equipment, and other oversized loads.
Moving forward, Haitai Crane will continue to develop heavy lifting technologies around the practical requirements of large-scale engineering projects, providing customers worldwide with efficient, safe, precise, and flexible solutions for complete heavy-duty lifting operations.
