A rail mounted gantry (RMG) crane is a type of crane used for material handling in shipping yards, container terminals, and other industrial facilities. It is a large, overhead crane that runs on rails, typically powered by electricity or diesel engines.
The RMG crane is designed with a long beam, which spans the width of the yard and is supported on either end by a pair of legs or a gantry. The crane runs along these rails, picking up and moving shipping containers or other large loads with a hoist or spreader beam.
The RMG crane is highly efficient and can move large volumes of cargo quickly and safely. It is often used in combination with other material handling equipment, such as automated stacking cranes, to move containers from ships to storage yards and vice versa.
In addition to its use in shipping and logistics, the RMG crane is also used in other industrial applications, such as construction, mining, and manufacturing.
How to use rail mounted gantry crane
Using a rail mounted gantry crane requires specialized training and certification. The following steps provide a general overview of the basic process for operating an RMG crane:
Pre-operation Inspection: Before operating the crane, a thorough inspection must be done to ensure that all components are in good working order. This includes checking the hoist, trolley, rails, electrical systems, and safety features.
Load Positioning: The RMG crane is designed to move along rails to pick up and move cargo containers. The operator positions the crane over the container and uses the hoist or spreader beam to secure the load.
Lifting the Load: Once the load is secured, the operator raises it off the ground and moves it to the desired location.
Moving the Load: The crane is operated by a controller, which moves the crane along the rails to transport the load to its destination. The operator must be aware of the location of other workers and obstacles in the area.
Lowering the Load: Once the load is in the correct location, the operator lowers it to the ground or onto another surface.
Shutdown: After the operation is complete, the operator must shut down the crane and conduct a post-operation inspection to ensure that everything is in good working order.
It is important to note that the specific steps for operating an RMG crane may vary depending on the make and model of the gantry crane, as well as the requirements of the specific job site. It is also important to follow all safety procedures and protocols to prevent accidents and injuries.
Rmg crane safety device
Rail mounted gantry (RMG) cranes are equipped with a variety of safety devices to ensure the safety of workers and equipment. Here are some of the safety devices commonly used on RMG cranes:
Overload Protection: This safety device is designed to prevent the crane from lifting loads that are heavier than the maximum rated capacity. It typically uses sensors or load cells to monitor the weight of the load and will shut down the crane if an overload is detected.
Anti-Collision Systems: These systems are designed to prevent collisions between the crane and other equipment, as well as between two or more cranes. They typically use sensors, cameras, or other detection devices to monitor the surrounding area and alert the operator if a potential collision is detected.
Limit Switches: Limit switches are used to limit the movement of the crane to prevent it from going beyond its designated operating area. They can be used to prevent the crane from colliding with other equipment or structures, or to prevent the crane equipment from going too far off the rails.
Emergency Stop Button: An emergency stop button is a safety device that allows the operator to quickly shut down the crane in the event of an emergency. This can be critical in preventing accidents and injuries.
Electrical Interlocks: Electrical interlocks are used to ensure that certain safety procedures are followed before the crane can be operated. For example, the interlocks may require the operator to conduct a pre-operation inspection before starting the crane or to ensure that all personnel are clear of the work area before moving the crane.
Warning Alarms: RMG cranes are often equipped with warning alarms to alert workers of the crane’s movement. These alarms can help prevent accidents by alerting workers to the crane’s presence and movement.