High Efficiency Container Gantry Crane for Port Handling
With the acceleration of global trade, container throughput continues to rise, ports as the core hub of international trade, loading and unloading efficiency is crucial. At present, most of the world's ports are deeply trapped in the container stranding, slow ship turnover, yard congestion, high operation and maintenance costs, inefficient loading and unloading equipment has become a bottleneck to enhance the competitiveness of ports. In this paper, we will analyze the core value and technical characteristics of high-efficiency container gantry cranes to provide professional reference for port operators to crack the pain points and reduce costs and increase efficiency.
What Is a Container Gantry Crane in Port Operations
Container Gantry Crane is the core container handling equipment in port container yard and terminal, mainly used for container stacking, transfer, loading and unloading operations, is the key hub connecting ships, trucks and railroads, and directly determines the turnover efficiency and operational capacity of the port yard. Among them, the two most widely used types are Rubber Tyred Gantry Crane and RMG Crane Rail Mounted Gantry Crane, both of which have different structural characteristics to meet the needs of different port scenarios.
Definition of container gantry crane
- RTG crane: Rubber tires as a walking device, no need to lay tracks, can be flexibly moved within the yard, suitable for a variety of site layout, is the first choice for small and medium-sized ports, multi-yard linkage operation equipment.
- RMG cranes: Rely on rail travel, stable operation, accurate positioning, automation transformation potential, more suitable for large-scale container terminals, automated yard scale operations, can achieve efficient continuous container loading and unloading transfer.
Difference between RTG and RMG
Many port operators will be confused by the difference between RTG and RMG when selecting the model, the core difference between the two is mainly focused on four aspects, accurately matching different port scenarios:
- Walking Mode: RTG adopts rubber tires to walk, no track restriction, free transfer, cross-area operation, turning radius ≤ 15 m. RMG walks along the track, can only work within the fixed track, weaker maneuverability, but stronger operational stability.
- Operation efficiency: RTG is suitable for small and medium scale operation, single machine can complete 20-25 TEUs per hour, RMG has accurate positioning and fast running speed, single machine can complete 30-40 TEUs per hour, more suitable for large scale and high density yard operation.
- Site adaptability: RTG does not need to lay tracks, low upfront investment, adaptable to flexible and variable yard layout, tire grounding pressure ≤ 0.8MPa, lower requirements for the site ground, RMG needs to lay special tracks, higher upfront investment, suitable for large container terminals with fixed sites and stable throughput, track foundation load needs to be ≥ 200kN/m².
- Automation potential: RMG has stable structure, fixed walking track, easy to realize automation transformation, and can be quickly upgraded to ARMG. RTG is a little more difficult to automation transformation because of its flexible walking, and is mainly used for semi-automatic operation.
Why High Efficiency Matters in Port Handling
The recovery of global trade has pushed up the container throughput, and the competition in ports is becoming more and more fierce, and efficiency has become the core competitiveness. Inefficient loading and unloading equipment leads to ship turnover delays, yard congestion and increased operating costs, which are the core pain points of most ports. Long cargo hold-ups, long vessel waits and high labor costs are all directly related to the lack of crane efficiency.
Increasing global container throughput pressure
Global container throughput is growing at an average annual rate of 5%-8%, with core ports in Asia and Europe experiencing particular pressure. According to IAPH data, in 2023, 65% of ports to start intelligent transformation, 28% for automated terminals, the core is to cope with throughput growth. Insufficient crane efficiency can lead to container stacking and vessel demurrage, affecting the supply chain and even triggering claims, with one medium-sized port losing nearly a million dollars a month as a result.
The core impact of efficiency on port operations
The impact of high-efficiency container gantry cranes on port operations is reflected in four key dimensions, which directly determine the port's profitability and market competitiveness:
- Vessel turnaround time: High-efficiency cranes can shorten the ship loading and unloading time by 4-6 hours, and enhance the amount of ship calls. The efficiency of a single crane in the three major hub ports such as the Port of Singapore reaches 28-32 natural containers/hour, significantly shortening the ship turnaround time.
- Yard productivity: Henan Mine Crane Factory supplyhigh-efficiency cranes can quickly stack and transfer containers, improve the efficiency of yard turnover 30%-50%, the same area of the yard can be stacked 20%-30% more containers, improve site utilization.
- Labor cost reduction: The automation system of high-efficiency cranes can reduce labor, one remote operator can replace 3-4 on-site personnel, saving hundreds of thousands of dollars per year, but also reduce operational errors and safety accidents.
- Bottlenecks caused by low-efficiency cranes: High-efficiency cranes can solve the problems of slow operation and easy failure of traditional equipment, and reduce the average annual downtime of domestic harbor cranes from 200 hours to less than 100 hours.
Key Features of High Efficiency Container Gantry Cranes
As a leading crane manufacturer in China, the high efficiency gantry crane supplied by Henan Mine Crane Factory integrates automation, intelligence and energy-saving technologies, and its core advantages are embodied in four major aspects, including efficiency, energy saving, safety and flexibility, which are suitable for the operational needs of different ports, and at the same time meet the requirements of the automated container crane, energy-saving, safety and flexibility. It also meets the market demand for automated container crane and energy saving crane.
Advanced automation systems
Automation is the core to improve the efficiency of cranes, high-efficiency container gantry cranes are equipped with semi-automated and fully automated solutions, integration of 5G + AI and PLC intelligent control technology, remote control, precise positioning, can reduce manual operation and error.
High lifting speed and precision
The core competitiveness of Henan Mine Crane Factory's high-efficiency container gantry cranes lies in speed and precision. By optimizing the mechanical structure and control technology, the lifting, trolley and lorry operation speed is increased by 40%-50% compared with the traditional models, and with the advanced anti-swinging system, the swing angle is controlled within 3°, the containers are placed accurately, and the time of aligning is reduced, which improves the operation efficiency significantly.
Energy efficiency and eco-friendly design
Under the goal of “double carbon”, energy saving and consumption reduction in ports is a must. High-efficiency container gantry crane adopts environmentally friendly and energy-saving design, optional pure electric, hybrid drive, energy consumption is reduced by 30%-50% compared with diesel models, equipped with regenerative braking technology, power recovery rate of 20%-30%, with low noise motors and environmentally friendly coatings, in line with the development trend of green ports, helping ports to reduce costs and increase efficiency.
Flexible yard coverage
Different ports have different yard layouts and operational needs, high-efficiency container gantry cranes achieve wide yard coverage with flexible structural design, with a span of 20-40m and a lifting height of 18-24m, which can realize 8-layer container stacking and cover 6-12 columns, and at the same time, it is also suitable for 2-3 lanes of trucks, which reduces the waiting time, optimizes loading and unloading processes, and improves the utilization rate of yards and the efficiency of the turnaround process.
Types of Container Gantry Cranes for Port Use
According to the different port yard layout, throughput, automation needs, container gantry cranes are divided into three main types, each with unique advantages, suitable for different port scenarios.
Rubber Tyred Gantry Crane (RTG)
RTG cranes are one of the most widely used container gantry cranes in ports, and their core advantage lies in their flexibility and adaptability to a variety of scenarios.
- Advantage of mobility: Rubber tires are used to walk, no need to lay tracks, free to move within the yard, cross-area operations, flexible transfer, small turning radius, suitable for complex yard layout, wheelbase range of 10.5m ~ 12m, axle distance of 6m ~ 8m, suitable for a variety of site conditions.
- Applicable scenarios: Small and medium-sized container ports, multi-yard linkage operations, ports with flexible yard layout, as well as temporary yards, inland container yards, low upfront investment, little difficulty in transformation, can be quickly put into use.
- Core features: Flexible operation, strong adaptability, can be equipped with semi-automatic control system, moderate operational efficiency, suitable for ports with medium throughput and limited space.
The windproof device adopts hand-pull windproof anchor and wheel side brake, and some models are equipped with windproof cable, which can cope with regular windy weather.
Rail Mounted Gantry Crane (RMG)
The core advantages of Henan Mine Crane manufactured RMG cranes are high stability and high automation potential, making them the first choice for large ports and automated yards.
- High automation potential: Walking along the track, fixed trajectory, easy to realize automation transformation, can be quickly upgraded to fully automated operations, to meet the development needs of the smart port, is the core equipment of the current automated container terminal.
- Applicable scenarios: Large container terminals, ports with high throughput and fixed yard layout, and automated container yards, which can realize large-scale and continuous operation and improve yard turnover efficiency. The gauge and span are the same, and the windproof device adopts three-in-one rail clamp, windproof anchor and top rail, which has a higher windproof grade.
- Core features: Stable operation, accurate positioning, high operating efficiency, low energy consumption, low failure rate, suitable for long-term high-intensity operation, and can be adapted to the needs of high throughput operations.
Automated Rail Mounted Gantry Crane (ARMG)
ARMG is the automated upgraded version of RMG crane, which represents the development trend of port cranes, and the core advantage is unmanned and intelligent.
- The trend of unmanned operation: The use of fully automated control system, can realize unattended, remote control, without the need for on-site operators, significantly reducing labor costs, while improving operational efficiency and safety.
- Intelligent Port Integration: It can be seamlessly connected with the port intelligent management system, AGV, and intelligent yard management system to realize the whole process automation of container loading and unloading, transshipment, and stockpiling, and help the construction of intelligent port.
- Application Scenario: Large-scale intelligent ports, fully automated container terminals, and ports with high requirements for efficiency and automation can realize 24-hour continuous operation, break through the limit of human physiology, and significantly enhance the core competitiveness of ports.
Applications in Modern Ports and Terminals
Henan Mine Crane manufactured high-efficiency container gantry cranes are used in a wide range of application scenarios, covering all kinds of ports and terminals, and are core applied to the whole process of container stacking, transshipment, loading and unloading.
Container stacking yards
This is the most core application scenario of container gantry cranes, whether RTG, RMG or ARMG, can be realized in the stacking yards for multi-layer storage of containers, fast transfer. It can effectively improve the utilization of yard space, adapt to the storage needs of different scale ports, solve the problems of container stacking, and ensure the orderly and efficient promotion of yard operations.
Intermodal rail terminals
In the railroad container terminals, Henan Mine Crane manufactured container gantry cranes undertake key transshipment duties, responsible for transferring containers from trucks to railroad wagons or from railroad wagons to trucks, realizing the seamless connection of highway and railroad multimodal transportation, opening up the channels between inland transportation and port transportation, and enhancing the transshipment efficiency of containers across modes of transportation.
Inland container depots
Inland container depots are the key nodes connecting ports and inland areas, with flexible site layouts and moderate throughputs, which are very suitable for RTG cranes, whose flexibility can be adapted to the operational needs of inland depots, helping containers turnover efficiently between ports and inland areas, and supporting the smooth operation of logistics in inland areas.
Smart ports and automated terminals
With the rapid development of smart ports, ARMG cranes have become the core equipment of automated terminals. It can be seamlessly connected with the port intelligent management system, AGV and other equipment to realize unmanned operation in the whole process of container loading and unloading, transshipment and stockpiling, which significantly improves the operational efficiency and intelligence level of automated terminals.
How High Efficiency Gantry Cranes Improve Port Productivity
Henan Mine Crane Factory supply High Efficiency Container Gantry Cranes improve port productivity, not a single dimension of speed, but the whole process of efficiency optimization, cost reduction, safety enhancement.
Faster container turnaround
High-efficiency container gantry crane operating speed than the traditional models to increase 40% -50%, can significantly reduce the container in the yard detention time, accelerate the turnaround efficiency. Equipped with high-efficiency equipment in the port, the container turnaround efficiency can be increased by 30% -50%, the port throughput can also be synchronized to increase by 20% -30%, effectively solving the problem of container stacking, and strengthening the competitiveness of port operations.
Reduced operational downtime
High-efficiency container gantry cranes use high-strength steel and high-quality components, with intelligent failure warning system, the failure rate is 60%-70% lower than the traditional models. Its annual downtime can be controlled within 100 hours, equipment utilization rate increased to more than 85%, much higher than the utilization rate of 50% -60% of traditional cranes, to ensure continuous and stable operation.
Improved safety performance
Henan Mine Crane Factory supply high-efficiency container gantry cranes are equipped with automated and intelligent control system, which reduces the reliance on manual operation, lowers the operation error, and with multiple safety protection devices, the safety accident rate can be reduced by more than 90%. At the same time, it avoids the risk of working at height, improves the operating environment, and protects the personal safety of the operators and the safety of the equipment operation in an all-round way.
Lower operating costs
High-efficiency container gantry cranes can reduce port operating costs in terms of labor, energy consumption, operation and maintenance. Automated operation reduces operating personnel by 60%-70%, energy consumption by 30%-50%, and operation and maintenance costs by 40%-60%. A single unit can save 500-1 million RMB per year and significantly shorten the return on investment to 3-5 years.
Henan Mine Crane Factory Custom
Global trade competition is becoming increasingly fierce, port efficiency is the core competitiveness, container gantry cranes as the core equipment for port loading and unloading, its efficiency, stability and energy saving directly affects the port operating costs and profitability, can effectively crack the low efficiency of ports, high costs, safety hazards, helping ports to realize automation, green upgrading, and to meet the needs of the global supply chain development.
Henan Mine Crane Factory is deeply engaged in the field of port cranes, and develops and produces container gantry crane, port gantry crane, RTG crane, RMG crane and other products, which have the advantages of high efficiency, intelligence and energy saving, and can provide customized solutions for different scenarios, such as small and medium-sized ports, large-scale automated terminals, and inland container yards. They can provide customized solutions for different scenarios such as small and medium-sized ports, large automated terminals, inland container yards, etc., helping ports to improve efficiency and reduce costs.
Contact us now for customized solutions and detailed quotes, and work together to build a modern, efficient, intelligent and green port!
