The Rail-Mounted Gantry Crane (RMG) is a highly specialized piece of heavy lifting equipment dedicated to efficiently loading, unloading, stacking, and transporting containers. These powerful machines run on steel wheels along fixed rails and use grid electricity for power, delivering high performance across various terminal applications.
RMGs achieve a high level of automation, allowing a single operator to manage multiple cranes (up to 1:6 operator-to-machine ratio) and reach a comprehensive efficiency of 250 meters per hour. They integrate various automated subsystems, including:
These technologies ensure precise and highly efficient operations.
RMGs utilize a bias-rail box girder structure. Manufacturers produce the main beam as a single, fully formed unit, ensuring a smooth, continuous camber curve. This robust design minimizes swaying and reduces the risk of wheel flange wear (crabbing), facilitating easier and more stable container alignment.
The traveling mechanism incorporates advanced technology, such as the spline hollow shaft three-in-one geared motor. This motor is lightweight and easy to disassemble, which significantly reduces maintenance costs.
These cranes feature an all-electric design, which meets the IE3 efficiency rating standard (IEC60034). This focus on electric power makes the RMG an energy-saving and environmentally friendly choice for terminal operators.
RMGs integrate multiple layers of safety protection to ensure secure operation, including:
The crane’s structure forms a highly stable gantry frame with two vertical columns and a crossbeam. Built with high-strength materials and a sturdy design, it offers a high load-bearing capacity and excellent wind resistance, making it suitable for long-term operation in complex environmental conditions.
With lifting capacities ranging from a few tons up to several hundred tons, RMGs handle large-scale material handling requirements. They offer a large span and lifting height, effectively covering extensive work areas and adapting to different site layouts.
The precision positioning system ensures accurate placement during both vertical lifting and horizontal movement. Furthermore, RMGs offer a high degree of customization. Operators can tailor the design based on specific site constraints, load requirements, and application needs.
RMGs perform reliably in various working conditions, including indoor, outdoor, dry, and humid environments. Their design ensures easy maintenance, as key components are readily accessible for repair or replacement, reducing downtime and operational costs.
MH type electric hoist gantry crane is used together with CD MD model electric hoists.
L Type electric hoist gantry crane match with CD1/ MD1, HC type Electric Wire rope hoist, to lifting and transporting the heavy materials, mainly use indoors and outdoors.
BMH Type Semi Gantry Crane is a bridge-type crane whose bridge is supported on the ground track through outriggers on both sides.
A-type Double Beam Hook Gantry Crane, It is mainly composed of a gantry (main beam, outriggers, lower beam, etc.), a lifting mechanism, a running mechanism and an electronic control part.
The rail-mounted container gantry crane (English abbreviation RMG) is one of the special machines for container yards.
MZ Type Double-beam Grab Gantry Crane are mainly used in conjunction with bridge cranes, port cranes, and winches. They are widely used in ports, power plants, docks, chemical industries, etc. to grab various types of loose accumulations, such as ore, coal, slag, etc.
Winch Gantry Crane are used in open warehouses, windy areas, material stocks area, bridge building, concrete industry, cement plant, granite industry, construction industry, engineering industry, port, transportation, construction, dockyard, and other building sites for lifting and loading unloading objects.
U Type Subway Turn Slag Hook Gantry Crane also known as subway slag flipping machine, slag flipping gantry crane, slag flipping gantry crane, etc., is a specialized gantry crane used for excavation in subway and tunnel construction projects.
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