Double Girder Rail Mounted Gantry Crane for Lifting Container
Introduction
- Rail mounted gantry cranes are commonly used in container yards and intermodal terminals. These cranes run on rails, which provide stability and allow for high precision in container handling. They are designed to transport containers over large areas and are often used for stacking containers in yard operations. The RMG crane is capable of lifting international standard containers (20′, 40′, and 45′) with ease, thanks to its specially designed container spreader.
- The structure of a container terminal gantry crane is a complex and robust system, designed to handle the demanding tasks of container transport in shipping terminals and inter-modal yards. Understanding the container gantry crane structure helps the crane users and operators optimize crane performance, reduce downtime, and maintain safe, productive operations.
Components
- Gantry Structure: The gantry structure forms the framework of the crane, providing the strength and stability required to lift and move heavy containers. The main components of the gantry structure include: main beams and legs.
- Trolley and Hoisting Mechanism: The trolley is a mobile platform that runs along the length of the main beams. It houses the hoisting mechanism, which is responsible for lifting and lowering containers. The hoisting mechanism includes a system of ropes, pulleys, and a motor-driven hoist drum that enables the lifting operation.
- Spreader: The spreader is the device attached to the hoist ropes that grips and locks onto the container. It is designed with twistlocks at each corner that engage with the corner castings of the container.
- Crane Cabin and Control System: The crane cabin houses the operator and provides a clear view of the crane’s working area, enabling precise control during container handling. The cabin is equipped with various controls and displays for managing the crane’s movement, hoisting, and spreader operations.
Making an Informed Purchase Decision
- Before making a purchase decision, it is crucial to have a clear understanding of your workload, lift height, and other specific operational needs. Determine which type of container gantry crane you need: a rail mounted gantry crane(RMG) or a rubber tyred gantry crane(RTG). Both types are commonly used in container yards and share similar functionalities, yet they differ in technical specifications, efficiency in loading and unloading, operational performance, economic factors, and automation capabilities.
- RMG cranes are mounted on fixed rails, providing greater stability and higher loading and unloading efficiency, making them suitable for large terminal operations that require heavy lifting capacities. Although RMG cranes require a more substantial infrastructure investment, they often lead to lower long-term operational costs due to increased productivity and reduced maintenance needs.
- If you’re considering investing in a new rail-mounted container gantry crane system and require a detailed quote, or if you’re seeking expert advice on the optimal lifting solution for your specific operations, don’t hesitate to contact us. Our dedicated team is always on standby, ready to understand your requirements and provide tailored solutions that perfectly meet your needs.
