In the bustling ports and container yards of China, a crucial piece of machinery has revolutionized the way goods are handled and transported: the rubber tyred gantry crane (RTG). These mobile giants are the backbone of modern logistics, enabling the efficient stacking, moving, and handling of intermodal containers with unparalleled flexibility and precision.

In this in-depth guide, we will delve into the world of RTG cranes, exploring their design, features, and applications. Readers will learn about the robust steel structures, advanced lifting components, and various power options, including diesel, electric, and hybrid systems, that make these cranes indispensable in port operations and beyond. We will also examine the advantages of RTGs, such as their mobility, high-grade container handling performance, and the role of automation in enhancing their efficiency.

Whether you are an industry professional, a logistics manager, or simply curious about the machinery that keeps global trade flowing, this guide will provide you with a comprehensive understanding of RTG cranes

Rubber Tyred Container Gantry Crane / RTG

Rubber Tyred Container Gantry Crane (RTG) Guide

Overview

The Rubber Tyred Container Gantry Crane (RTG) is a versatile and highly efficient material handling solution, primarily used in container storage yards for stacking and transshipping containers. Here is a comprehensive guide to its specifications, features, and operational capabilities.

Specifications

Lifting Capacity

• The RTG crane is available with lifting capacities of 35t and 40t, making it suitable for handling standard container weights.

Working Level

• These cranes are classified under working levels A6, A7, and A8, indicating their robustness and reliability in various operational conditions.

Span

• The span of the RTG crane can be either 23m or 27m, allowing it to cover a wide range of container stacking configurations.

Lifting Height

• The lifting height ranges from 12.2m to 17.8m, enabling the crane to handle multiple layers of containers.
• Stack Layers: 3/4 to 5/6 layers
• Passing Layers: Corresponding to the stack layers, ensuring efficient container stacking and retrieval.

Container Model Compatibility

• The RTG crane is designed to handle various container sizes, including 20’, 40’, and 45’ containers.

Operational Features

Mobility

• One of the key advantages of the RTG crane is its mobility, as it is mounted on rubber tyres. This allows the crane to move flexibly across the yard without the need for fixed rails.

Steering and Movement

• The crane is equipped with advanced steering systems, enabling straight movement, 90-degree lateral movement, and other complex maneuvers such as pivot steering and Ackerman steering.
• This flexibility in movement ensures that the crane can navigate through tight spaces and align perfectly with container stacks.

Control and Operation

• The RTG crane can be operated from a cabin or remotely using advanced control systems.
• Features like dual joystick designs for wireless remote control enhance the operator’s ability to manage the crane’s motions precisely from a safe distance.

Structural Components

Main Girder

• The main girder is the horizontal beam that spans the crane’s width, supporting the hoist and trolley. It is constructed from high-strength steel to handle heavy loads while maintaining rigidity.

Legs

• The legs are vertical support structures that connect the main girder to the base. Typically, there are four legs, each with tyres mounted at the base for mobility.

Cross Beam or Cross Girder

• These beams provide stability and connect the legs at the bottom of the crane, allowing the tyres to work in unison and ensuring structural integrity.

Safety and Reliability

Overload Protection

• The RTG crane is equipped with overload limit, deceleration limit, and stop limit switch protection devices to ensure safe and reliable operation.

Weather Resistance

• These cranes are designed to operate in various weather conditions, withstanding ambient temperatures and wind speeds typical of outdoor environments.

Applications

Container Storage Yards

• The primary application of RTG cranes is in container storage yards where they are used to stack, load, and unload containers efficiently.

Other Industrial Settings

• Besides container yards, RTG cranes can also be used in other industrial settings such as ports, quays, freight yards, shipyards, and rail terminals due to their flexibility and efficiency.

Customization and Maintenance

Custom Designs

• RTG cranes can be customized to meet specific application requirements, including varying spans, lifting heights, and container sizes.

Maintenance

• The all-electric spreader and other components are designed for less maintenance, reducing downtime and increasing overall productivity.

By understanding these specifications, features, and operational capabilities, users can make informed decisions about the suitability of the Rubber Tyred Container Gantry Crane for their specific material handling needs.

China Rubber Tyre Double Beam Gantry Crane Wholesale

Since the provided websites do not include the specific content from http://www.stonimage.com/double-beam-gantry-crane-p.html, the following guide is compiled based on the general information available from the other sources on double girder gantry cranes.

Double Girder Gantry Crane: A Comprehensive Guide

Introduction

A double girder gantry crane is a type of heavy-duty lifting equipment widely used in various industrial settings, including construction sites, shipyards, ports, and freight yards. This guide provides an in-depth look at the key components, specifications, and applications of double girder gantry cranes.

Key Components

Gantry Structure

• The gantry structure consists of two main girders (beams) supported by two legs. These girders can be either box-type or truss-type, depending on the design requirements[4].

Hoist Trolley

• The hoist trolley includes the hoisting mechanism and the trolley that moves horizontally along the girders. For capacities over 10 tons, double girder gantry cranes often feature both main and auxiliary hoisting mechanisms to enhance efficiency[3].

Crane Travelling Mechanism

• The crane travels on rails, and the design can accommodate various rail configurations. The steel wheels support substantial weight and ensure stable movement[3].

Electrical System

• The crane can be powered by a cable reel, diesel generator, or bare copper slip line. The electrical system is designed for reliable and efficient operation[3].

Specifications

Lifting Capacity

• Double girder gantry cranes have a lifting capacity ranging from 5 tons to over 500 tons, making them versatile for various heavy-duty lifting tasks[2][3][4].

Span

• The span, which is the distance between the two vertical legs, typically ranges from 18 meters to 35 meters. However, it can be customized to meet specific operational needs[2][3][4].

Lifting Height

• The lifting height, or the vertical distance the crane can lift loads, generally ranges from 6 meters to 18 meters, but can be customized up to 30 meters or more[2][3][4].

Speeds

• Lifting Speed: Varies from 1.5 m/min to 11.5 m/min depending on the capacity.
• Trolley Speed: Typically ranges from 10 m/min to 40.1 m/min.
• Crane Speed: Usually ranges from 16 m/min to 50 m/min[2][3][4].

Work Duty

• The work duty classification ranges from A3 to A7, indicating the crane’s suitability for different levels of operational intensity[2][3][4].

Applications

Outdoor Heavy Duty Lifting

• Double girder gantry cranes are commonly used in outdoor settings such as construction sites, freight yards, railroad terminals, shipyards, and ports[3].

Indoor Lifting

• These cranes can also be used indoors when an overhead crane system is not feasible or suitable[3].

Technical Parameters

Track Type

• The track type varies depending on the capacity and includes types such as P43, QU70, QU80, and QU100[2][3].

Control Methods

• Control methods include ground control, remote control, and cabin control, offering flexibility in operation[4].

Features and Benefits

Reasonable Structure

• The design ensures stability and strength, making it suitable for heavy-duty applications[4].

Favorable Performance

• Smooth starting and stopping, low noise, and commodious cabins enhance operational efficiency and comfort[4].

Safety and Reliability

• The cranes are designed with safety and reliability in mind, featuring robust materials and strict quality control measures[4].

Maintenance and Exchangeability

• Convenient maintenance and excellent exchangeability for parts and components reduce downtime and maintenance costs[4].

Installation and Operation

Installation

• The crane can be installed on various types of rails and can be customized to fit specific site requirements[3].

Operation

• Operators can control the crane using pendant control, wireless control, or cabin control, depending on the setup[4].

Conclusion

Double girder gantry cranes are powerful and versatile lifting solutions that cater to a wide range of industrial needs. Their high lifting capacities, adjustable spans and heights, and various control methods make them ideal for both outdoor and indoor heavy-duty lifting applications. Understanding the specifications, components, and applications of these cranes is crucial for selecting the right model and ensuring efficient and safe operation.

China Rubber Tyred Gantry Crane …

Given that the specific website http://www.stonimage.com/rtg-crane-c.html is not accessible, the following guide is compiled based on the general information available from other reliable sources on Rubber Tyred Gantry (RTG) Cranes.

Guide to Rubber Tyred Gantry (RTG) Cranes

Introduction

Rubber Tyred Gantry (RTG) Cranes are specialized material handling and container lifting equipment widely used in ports, container yards, and intermodal terminals. These cranes are known for their flexibility and efficiency in handling containers.

Key Components and Design

Gantry Frame

The gantry frame is the main structural component of the RTG crane, consisting of the main beam and the legs. The main beam is typically constructed as a box type to provide stability and strength[5].

Wheel Configuration

RTG cranes are equipped with rubber tires, allowing them to move freely around the container stacking area without the need for fixed rails. The wheel configuration can vary, such as 4×2, 6×2, or 8×4, depending on operational requirements and surface conditions[1].

Power Supply

RTG cranes can be either diesel-powered or electric-powered. The choice between these options depends on environmental considerations, cost, and the availability of power sources. Electric-powered RTGs are known for lower energy consumption and less maintenance[1][2].

Hoisting and Travel Mechanisms

• Hoisting Mechanism: RTG cranes are equipped with hoist units that can lift containers at speeds ranging from 12 to 46 meters per minute. The lifting height can vary from 1 over 3 to 1 over 6 containers high[1][5].
• Travel Mechanism: The crane can travel at speeds of 45 to 90 meters per minute. The travel mechanism includes gantry travel units and trolley travel systems, ensuring smooth and efficient movement[1][5].

Specifications and Parameters

Lifting Capacity

RTG cranes typically have a lifting capacity ranging from 20 to 100 tons under the spreader. Common capacities include 30 tons, 35 tons, and up to 50 tons for twin lift configurations[1][4][5].

Span

The span of an RTG crane indicates how wide the crane can extend over container rows. Common spans range from 22 to 28 meters, and can be customized to cover up to 10 containers wide plus a truck lane[1][2][5].

Lifting Height

The lifting height of an RTG crane defines the maximum height it can lift containers. This can range from 12.3 meters for 1 over 3 containers to 21 meters for 1 over 6 containers[1][2].

Operating Conditions

• Temperature: RTG cranes are designed to operate within a temperature range of -20°C to 40°C[1][5].
• Wind Speed: They can operate in service wind speeds up to 72 km/h and withstand out-of-service wind speeds up to 151.2 km/h[2].
• Yard Slope: RTG cranes can handle yard slopes of up to 1:100 in either direction[2].

Operational Features

Container Handling

RTG cranes use container spreaders to load, unload, and stack containers. They are equipped with anti-sway systems, such as the eight rope reeving system, to ensure precise and stable container handling[1][2].

Steering and Mobility

RTG cranes offer various steering options, including two-wheel steering and Ackerman steering, allowing for pivot steering and 90-degree lateral motion. This mobility enhances their flexibility in maneuvering around the yard[5].

Control Systems

RTG cranes can be operated from a cabin or using industrial remote control systems. These systems often feature dual joystick designs for wireless control, allowing operators to manage the crane’s motions from a safe distance[5].

Safety and Reliability

Protective Devices

RTG cranes are equipped with various protective devices, including overload limit, deceleration limit, and stop limit switch protection. These devices ensure safe and reliable functioning of the crane[5].

Maintenance

Electric-powered RTGs, in particular, are known for lower maintenance requirements due to their all-electric spreaders and reduced rope load and tare weight[2].

Applications

Ports and Container Yards

RTG cranes are essential in ports and container yards for handling and stacking containers efficiently. Their mobility and adaptability make them indispensable in these environments[1][5].

Intermodal Terminals

These cranes are also used in intermodal terminals to handle containers and other cargo, providing a flexible and efficient material handling solution[5].

Conclusion

Rubber Tyred Gantry Cranes are critical components in the global logistics and shipping industry, offering unparalleled flexibility, capacity, and adaptability in container handling. By understanding the key specifications, operational features, and safety measures of RTG cranes, users can optimize their container handling operations and enhance overall efficiency.

RTG Rubber Tyred Gantry Crane Manufacturers and …

RTG Rubber Tyred Gantry Crane: A Comprehensive Guide

Introduction

Rubber Tyred Gantry (RTG) cranes are versatile and highly efficient material handling solutions, widely used in various industrial settings such as ports, yards, warehouses, and construction sites. Here is a detailed guide to help you understand the features, applications, and benefits of RTG cranes.

Key Components and Design

Gantry Frame

The gantry frame of an RTG crane consists of two main parts: the main beam and the legs. The main beam is typically constructed as a box type, ensuring high rigidity and stability. This design allows for precise material handling even at high speeds[3].

Driving Mechanism

The driving mechanism includes wheel groups, transmission systems, and protective devices. RTG cranes use pneumatic tubeless tyres that offer excellent heat dissipation and durability. The driving system is often equipped with features like stepless speed control and hardened gear motors to ensure smooth and efficient operation[1][3].

Hoisting and Travelling Mechanisms

• Hoisting: Equipped with heavy-duty motors, super drums, and high-quality hooks (e.g., DIN 34CrMo4), ensuring long rope lifetimes and reliable lifting operations[1].
• Cross Travelling: Utilizes 3-in-1 gear motors with hardened gears and high protection levels, allowing for precise and controlled movements[1].
• Long Travelling: Features non-coupling transmission and modular design for efficient and smooth long-distance travel[1].

Control Systems

RTG cranes can be controlled via various methods, including:
– Remote Control: Allows for operation from a safe distance, often using wireless transmitters with a range of up to 100 meters[3].
– Pendant Control: Provides direct control over the crane’s movements.
– Cabin Control: Offers a more centralized control option[1][4].

Applications

Port and Container Yards

RTG cranes are extensively used in container terminals for stacking, loading, and unloading containers. Their mobility and flexibility make them ideal for managing container movements efficiently[3][5].

Outdoor Storage and Warehouses

These cranes are suitable for outdoor storage yards and indoor warehouses, handling a variety of materials with precision and speed[1].

Construction and Manufacturing

RTG cranes are used in construction sites, manufacturing plants, and other industrial settings where heavy and precise material handling is required[4].

Wind Energy Industry

In the wind energy sector, RTG cranes are used to lift and transport wind turbines, often working in tandem to enhance productivity and safety[3].

Features and Benefits

Flexibility and Mobility

Unlike rail-mounted gantry cranes, RTG cranes are mounted on rubber tyres, allowing them to move freely without the need for fixed tracks. This flexibility makes them highly adaptable to different work environments and reduces congestion in confined spaces[2][3].

Customization

RTG cranes can be customized to meet specific application requirements, including varying capacities, spans, and lifting heights. This customization ensures that the crane is tailored to the user’s needs, enhancing efficiency and safety[1][4].

Safety Features

RTG cranes are equipped with various safety features such as:
– Load Limiters: To prevent overloading.
– Emergency Brakes: For immediate stoppage in case of emergencies.
– Anti-Sway Systems: To stabilize the load during movement.
– Overload Limit, Deceleration Limit, and Stop Limit Switches: To ensure safe and reliable operation[2][3].

Performance Parameters

Capacity

RTG cranes can handle loads ranging from 1 ton to 200 tons, depending on the design and application[1][2].

Span and Lifting Height

The span can vary from 5 meters to 28 meters or more, and the lifting height can range from 3 meters to 18 meters or as required by the application[1][4].

Work Duty

RTG cranes are classified under work duty levels A3 to A5, or even higher for specific applications like container handling (A6, A7, A8)[1][5].

Power Supply

These cranes can be powered by diesel generator systems or other power supply equipment, making them suitable for both indoor and outdoor use[1][2].

Maintenance and Operation

Power and Control

RTG cranes can be powered by diesel generators or other power sources, and they often feature fully electric systems with smart features and safety enhancers[2].

Ambient Conditions

These cranes can operate in a wide range of ambient temperatures, typically from -20°C to +50°C, making them suitable for various environmental conditions[2][4].

Steering and Gradability

RTG cranes often feature two-wheel steering (2WS) and can handle gradients up to 3%, ensuring smooth operation on different terrains[2].

Conclusion

RTG rubber tyred gantry cranes offer a robust, flexible, and efficient solution for material handling across various industries. Their customizable design, advanced safety features, and high mobility make them an invaluable asset for enhancing productivity and safety in diverse work environments. When selecting an RTG crane, it is crucial to consider the specific application requirements to ensure the crane is optimized for the intended use.

Rubber-tyred Container Gantry Crane-RTG

Rubber-Tyred Container Gantry Crane (RTG Crane) Guide

Introduction

A Rubber-Tyred Container Gantry Crane (RTG Crane) is a versatile and efficient piece of equipment designed for handling and stacking containers in container terminals, ports, and other outdoor workplaces. Here is a comprehensive guide to the key features, specifications, and advantages of RTG cranes.

Design and Construction

Structure

RTG cranes have a rigid and stable steel structure that includes a main beam and legs, typically constructed as a box type for added strength and stability[4].

Mobility

These cranes are mounted on rubber tires, which allow them to move freely around the yard without being restricted by rails. This mobility enhances flexibility and productivity in container handling operations[5].

Key Components

• Gantry Frame: The main beam and legs form the gantry frame.
• Hoist Trolley: Equipped with a container spreader for loading, unloading, and stacking containers.
• Electrical System: Often includes AC frequency converters, PLC speed governors, and constant power adjustment devices for efficient operation[2][4].
• Protective Devices: Overload limit, deceleration limit, and stop limit switches ensure safe and reliable functioning[4].

Specifications

Lifting Capacity

RTG cranes can have lifting capacities ranging from 30 tons to 65 tons, depending on the model and configuration. Common capacities include 35 tons and 40 tons under the spreader[3][5].

Span Length

The span length of RTG cranes can vary from 16 meters to 37.7 meters, accommodating different container yard layouts. Typical spans include 22-28 meters and up to 37.7 meters for wider container rows[1][4].

Lifting Height

RTG cranes can lift containers to various heights, such as 12.3 meters for 1 over 3, 15.2 meters for 1 over 4, and up to 21 meters for 1 over 6 high stacking[1].

Working Class

RTG cranes are classified under working classes A6, A7, and A8, indicating their capability to handle a high number of loading cycles[2][3].

Ambient Temperature

These cranes can operate in a wide range of ambient temperatures, typically from -25°C to 40°C[2][4].

Operational Parameters

Travel and Gantry Movement

• Gantry Travel: RTG cranes can travel at speeds of 45-90 m/min without load and 70 m/min with load. They can rotate their travel wheels by 90 degrees for transversal movement[1][4].
• Trolley Travel: The trolley can move along the gantry span at speeds of up to 70 m/min with or without load[1].

Hoisting Speeds

Hoisting speeds vary, with no-load hoisting speeds up to 56 m/min and rated load hoisting speeds up to 28 m/min[1].

Advantages

Flexibility and Productivity

RTG cranes offer superior flexibility due to their ability to move freely on rubber tires, making them ideal for various outdoor workplaces. This flexibility enhances productivity by allowing efficient container handling without the constraints of fixed tracks[5].

Space Efficiency

These cranes can make full use of the storage yard, expanding the working space and improving work efficiency. They are particularly useful in optimizing container stacking and yard layout[5].

Energy Efficiency

RTG cranes can reduce fuel consumption and emissions by using electric power or hybrid systems. They also feature lower energy consumption due to direct-driven systems and reduced rope loads[1][5].

Durability and Reliability

RTG cranes are designed with good sealing, anti-corrosion features, and a long service life. They can withstand harsh weather conditions and operate reliably in various environments[5].

Safety and Control Features

Anti-Sway System

Many RTG cranes are equipped with anti-sway systems, such as the Liebherr Anti-Sway System, which uses eight rope reeving to minimize sway in hoist, trolley, and travel directions[1].

Monitoring and Management System

Advanced RTG cranes come with monitoring and management systems that collect data, analyze performance, and provide fault diagnosis. These systems ensure real-time monitoring and control from the electrical room, cabin, or control center[2].

Protective Devices

RTG cranes are equipped with protective devices such as overload limits, deceleration limits, and stop limit switches to ensure safe operation[4].

Maintenance and Cost

Maintenance

RTG cranes require minimal maintenance due to their robust design and use of reliable components. The all-electric spreader and other features reduce the need for frequent maintenance[1].

Cost

The cost of an RTG crane can vary based on specifications, features, and brand. Rough estimates include:
– Average price: around $2 million per unit
– Annual operating cost: approximately $150,000 per unit
– Annual maintenance cost: about $50,000 per unit[5].

Conclusion

Rubber-Tyred Container Gantry Cranes are indispensable in modern container handling operations due to their flexibility, efficiency, and reliability. With advanced features such as anti-sway systems, monitoring and management systems, and durable construction, RTG cranes offer a superior solution for optimizing container yard operations.

Rubber-Tired Gantry Cranes

Rubber-Tired Gantry (RTG) Cranes: A Comprehensive Guide

Introduction

Rubber-Tired Gantry (RTG) cranes are a crucial component in modern container terminals, offering enhanced safety, productivity, and reliability in container handling operations. This guide provides an in-depth look at the features, benefits, and technological advancements of Konecranes RTG cranes.

Design and Performance

Uncompromised Performance

Konecranes RTG cranes are designed to deliver top container handling performance, particularly in space-saving container terminals. These cranes are engineered to optimize yard operations, ensuring efficient and reliable container movement.

Core of Lifting

The Core of Lifting is an integrated package developed by Konecranes, consisting of gears, motor, and controls specifically designed for crane and lifting motions. This integrated system ensures seamless interaction between key components and software, enhancing overall lifting efficiency[3].

Automation and Smart Features

Path to Fully Automated Operation

Konecranes RTGs are highly adaptable to automation, making them ideal for container terminals aiming to transition to fully automated operations. The cranes are engineered to tolerate a high degree of variance from the yard surface, gantry, or tires, ensuring smooth automation integration. Smart Features can be purchased to prepare the RTGs for remote operation, facilitating a gradual transition to automation[3].

Automated RTG (ARTG) System

The Konecranes ARTG system, introduced in 2013, was the first to be implemented on a wide commercial scale. The ARTG system version 2.0 offers several advantages, including the ability to retrofit any brownfield container terminal. It features versatile truck handling with automated operations and remote supervision, allowing one supervisor to manage up to five ARTGs simultaneously. The system utilizes the latest wireless communication technology, eliminating the need for cable reels and fiber optics[2].

Power and Energy Efficiency

Complete Range of Power Options

Konecranes offers a variety of power options for RTGs, including diesel-electric and fully electric paths. The Hybrid Power Pack is a notable retrofit option, providing flexibility in power choices to align with business plans and environmental goals. This range ensures that operators can choose the most suitable power solution for their operations[1].

Ecolifting Vision

Konecranes’ long-term vision, Ecolifting, aims to fully electrify its product offering for container and intermodal terminals. This initiative is part of a broader commitment to sustainability and reducing environmental impact[3].

Reliability and Maintenance

No Hydraulics

Konecranes RTGs do not use hydraulics for bogie turning, sway prevention, or spreader micro-motions. This design choice enhances reliability, reduces downtime, and lowers maintenance and spare part costs, particularly beneficial in harsh coastal weather conditions[1].

Crane Management System (CMS)

The Crane Management System (CMS) uses InsQl industrial PCs to monitor and control crane operations. This system, along with enhanced semi-automatic driver assistance, contributes to improved operational efficiency and reduced maintenance needs[4].

Technical Specifications and Dimensions

Key Dimensions

• Max Lifting Height and Span: Up to 21,500 mm (1 over 6) and 29,500 mm (8 + truck lane)[4].
• Crane Width and Wheel Spacing: 12,060 mm over bogie guards with a wheel spacing of 2,100 mm in a bogie[4].
• Speeds: Hoist speeds of 31 m/min with a 50-ton load and 62 m/min with an empty spreader. Trolley traverse speeds of 70 m/min (standard) and 76 m/min (optional)[4].

Drives and Controls

• AC Drives: Konecranes AC drives are used for efficient and reliable operation.
• Anti-Sway System: The Active Load Control (ALC) system is used to prevent sway and ensure precise micro-motions[4].

Retrofits and Upgrades

Retrofits for Older Equipment

Konecranes offers a range of retrofits to bring older RTG equipment up-to-date. These retrofits include smart features for remote operation, hybrid power packs, and other technological upgrades to enhance performance and efficiency[3].

Port Services and Support

Konecranes provides comprehensive support through its Port Parts Centers and online stores, ensuring global distribution of port parts and insights into stock availability. Predictive maintenance and lifecycle care approaches are also available to maximize equipment availability[3].

Conclusion

Konecranes RTG cranes represent a pinnacle in container handling technology, combining intelligent design, advanced automation, and a commitment to sustainability. With their adaptability to automation, reliable performance, and efficient power options, these cranes are essential for modern container terminals seeking to enhance their operations and reduce environmental impact.

Rubber Tyred Gantry Cranes Manufacturers and Suppliers

Rubber Tyre Gantry Cranes: A Comprehensive Guide

Introduction

Rubber tyre gantry cranes (RTGs) are versatile and essential equipment in modern logistics, particularly in ports, terminals, and cargo yards. They are known for their high efficiency, flexibility, and safety. Here is a detailed guide to their working principle, features, and functions.

Working Principle of Rubber Tyre Gantry Cranes

• Mechanical, Hydraulic, and Electrical Systems: RTGs operate through the synergy of mechanical, hydraulic, and electrical control systems.
• Main Components: The main structure includes a gantry, beam, hoisting mechanism, traveling mechanism, and control system.
• Operation: The traveling mechanism is driven by a hydraulic system, allowing the crane to move flexibly on the ground. The hoisting mechanism, driven by an electric motor, controls the wire rope to lift and lower goods. The electrical control system ensures precise operation according to preset programs and parameters.

Features of Rubber Tyre Gantry Cranes

High Flexibility

• RTGs use a tyre-type traveling mechanism, providing higher mobile flexibility compared to rail-type cranes. This allows for quick transfers between different sites and adaptation to changing working environments.

High Operating Efficiency

• RTGs have faster traveling and lifting speeds, enabling rapid completion of loading, unloading, and stacking operations, thus improving logistics transfer efficiency.

Strong Adaptability

• These cranes are suitable for various cargo types, including containers, bulk cargo, and large cargo. They can be adjusted through the lifting mechanism and beam height to achieve efficient loading and unloading.

Safety and Reliability

• RTGs are equipped with advanced safety protection devices such as anti-collision systems, overload protection, and more, ensuring the safety and reliability of the operation process.

Easy Maintenance

• The modular design of RTGs makes maintenance and repair work easier, reducing maintenance costs.

Functions of Rubber Tyre Gantry Cranes

Cargo Loading and Unloading

• RTGs are primarily used for cargo loading and unloading operations. They can accurately control the lifting height of goods and cooperate with the traveling mechanism to realize rapid loading and unloading from ships, vehicles, or yards.

Cargo Stacking

• In cargo yards, RTGs can accurately stack cargo to designated positions according to preset stacking plans. By adjusting the height of the crossbeam and the travel path, they can achieve multi-layer and multi-column cargo stacking, improving yard space utilization.

Cargo Transfer

• RTGs also function in cargo transfer, transferring goods between ships or from ships to land transportation means, achieving rapid transfer of goods in ports and terminals.

Technical Specifications and Design

Gantry Span and Lifting Heights

• RTGs come with various gantry spans (e.g., 20.8 m to 37.7 m) and lifting heights (e.g., 12.3 m to 21 m) to accommodate different container and cargo sizes[2][5].

Travel and Steering Mechanisms

• RTGs are designed with different travel and steering modes, including straight movement, 90-degree lateral movement, oblique movement, pivot steering, and Ackerman steering. This enhances both flexibility and efficiency[3].

Power Options

• RTGs can be powered by diesel engines, electric motors, or a combination of both. Electric RTGs offer substantial fuel savings and can be retrofitted. They can also be equipped with energy storage solutions and variable speed engines to optimize power consumption[5].

Structural Components

Main Girder

• The main girder is the horizontal beam that spans the crane’s width, supporting the hoist and trolley. It is built from high-strength steel to handle heavy loads while maintaining rigidity[3].

Legs and Cross Beams

• The legs are vertical support structures connecting the main girder to the base, where the tires are mounted. Cross beams provide stability and connect the legs at the bottom, ensuring structural integrity[3].

Advantages and Benefits

Minimal Downtime

• RTGs are designed for ease of maintenance, resulting in minimum downtime and increased throughput per unit[5].

High Productivity

• Features like simultaneous drive motion, anti-sway systems, and precise control over the entire process increase productivity and reduce the need for additional ropes or devices[2][5].

Energy Efficiency

• RTGs can be fitted with energy storage solutions and variable speed engines, reducing fuel consumption and energy costs. Electric RTGs also offer significant energy savings[5].

Automation and Technology

• RTGs can be integrated with advanced technologies such as DGPS auto steering, container positioning systems, and automation options, enhancing their operational efficiency and accuracy[5].

Conclusion

Rubber tyre gantry cranes are indispensable in modern logistics due to their high flexibility, efficiency, and safety. Understanding their working principle, features, and functions is crucial for optimizing their application in various industries. With customizable designs, advanced power options, and robust structural components, RTGs continue to be a vital asset in cargo handling and logistics operations.

Rubber Tyre Container Gantry Crane

Guide to Rubber Tyred Gantry (RTG) Cranes

Introduction

Rubber Tyred Gantry (RTG) cranes are versatile, mobile systems designed to move and stack storage containers efficiently. They are widely used in container terminals, ports, and various other industrial settings due to their flexibility, high performance, and environmental benefits.

Components of RTG Cranes

RTG cranes are composed of several key components:
– Steel Frame: The structural backbone of the crane.
– Hoisting Mechanism: Responsible for lifting and lowering containers.
– Slewing Mechanism: Allows the crane to rotate.
– Spreader Anti-Shaking Mechanism: Stabilizes the spreader to ensure smooth container handling.
– Crane Travel Mechanism: Enables the crane to move along the terminal.
– Turning Mechanism: Facilitates directional changes.
– Trolley Traverse Mechanism: Allows the trolley to move along the crane’s beam.
– Container Spreader: Grabs and releases containers.
– Diesel Generating Sets and Electrical Equipment: Power the crane’s operations.
– Accessory Equipment for Safety: Includes inverters, PLCs, and CMMS (fault monitor systems) to ensure safe and efficient operation.

Design Features and Advantages

Mobility

RTG cranes feature rubber tires, which eliminate the need for fixed rails or tracks. This mobility allows for easy movement within ports and terminals, optimizing container handling and space utilization.

Versatility

These cranes can handle various container sizes and types, stacking them in multiple rows and heights to maximize space. The adjustable spreader accommodates different container widths, including standard and specialized containers.

Fast Operation

RTG cranes are designed for quick and efficient container handling. They have high lifting and traveling speeds, enabling rapid movement and positioning of containers, which improves the overall productivity and throughput of the terminal.

Environmental Friendliness

RTG cranes, especially those that are electrically powered, offer significant environmental advantages. They use advanced energy management systems, reducing emissions and noise levels, making them more eco-friendly and suitable for use in environmentally sensitive areas.

Reduced Infrastructure Costs

Since RTG cranes do not require fixed rails or tracks, they eliminate the need for costly civil engineering work to construct and maintain infrastructure. This results in significant cost savings during the initial setup and ongoing terminal operations.

Operational Benefits

Operator Comfort and Safety

RTG cranes prioritize operator comfort and safety. They are equipped with ergonomic cabins that offer excellent visibility, air conditioning, and advanced control systems. These features enhance productivity and ensure safe container handling.

Remote Control and Automation

Modern RTG cranes often include remote control and automation capabilities. These features include:
– Container Positioning Systems: Precise placement of containers.
– Anti-Collision Systems: Prevent accidents by detecting obstacles.
– Advanced Software: Optimizes container handling processes.

Applications

RTG cranes are versatile and can be used in a variety of settings, including:
– Container Terminals and Ports: For efficient handling of shipping containers.
– Logistics: For managing container movements in logistics hubs.
– Construction Sites: For lifting heavy construction materials.
– Power Plants: For handling heavy equipment and components.
– Shipyards: For moving and stacking ship components and materials.
– Wind Energy: For transporting and positioning wind turbine components.
– Concrete Precast: For handling precast concrete elements.

Capacity and Types

RTG cranes are available in various capacities and types:
– Capacity: Ranges from 5 to 500 tons, with options for customization.
– Types: Include single beam, double beam, and A-frame types to suit different operational needs.

Conclusion

Rubber Tyred Gantry cranes are essential for modern container handling and industrial operations due to their mobility, versatility, efficiency, and environmental benefits. Their advanced features and various applications make them a valuable asset in optimizing operational productivity and safety.

rubber tyred gantry crane Suppliers and Manufacturers China

Since the specific website you mentioned is not accessible in the provided search results, I will create a comprehensive guide to Rubber Tyred Gantry (RTG) Cranes based on the information from the other sources.

Guide to Rubber Tyred Gantry (RTG) Cranes

Introduction

Rubber Tyred Gantry (RTG) cranes are versatile and efficient material handling solutions widely used in various industries, including ports, quays, freight yards, shipyards, and rail terminals. These cranes offer flexibility and productivity, making them an ideal choice for outdoor and indoor applications.

Key Components and Structure

Main Girder

The main girder is the horizontal beam that spans the crane’s width, supporting the hoist and trolley. It is typically constructed from high-strength steel to handle heavy loads while maintaining rigidity[4].

Legs and Tyres

The legs are vertical support structures that connect the main girder to the base. RTG cranes usually have four legs, with tyres mounted at the base for mobility. The tyres are designed for excellent heat dissipation and durability[2][4].

Cross Beam or Cross Girder

These beams provide stability and connect the legs at the bottom of the crane, allowing the tyres to work in unison and ensuring structural integrity[4].

Types of RTG Cranes

Single Beam and Double Beam RTG Cranes

RTG cranes can be categorized into single beam and double beam designs. Double beam cranes are more common and offer greater stability and lifting capacity[3][4].

A-Frame and U-Frame RTG Cranes

A-Frame RTG cranes are typical for various applications, including construction and manufacturing. U-Frame RTG cranes are more suited for heavier and larger loads, often used in ports and storage yards[3].

Technical Specifications and Capabilities

Lifting Capacity

RTG cranes have a wide range of lifting capacities, from 5 tons to 800 tons and above, depending on the model and application[2][4][5].

Span and Lifting Height

The span of RTG cranes can vary from 22 to 40 meters, and the lifting height can be customized according to the specific requirements of the application. Common spans include 23m, 27m, and up to 37.7m for container handling[1][2][5].

Working Speeds

• Hoisting with no load: up to 56 m/min
• Hoisting with rated load: up to 28 m/min
• Trolley travel: up to 70 m/min
• Gantry travel without load: up to 130 m/min
• Gantry travel with rated load: up to 70 m/min[1].

Operating Conditions

RTG cranes can operate in various ambient temperatures, typically ranging from -20°C to 40°C. They are designed to function in different wind conditions, with in-service wind speeds up to 72 km/h and out-of-service wind speeds up to 151.2 km/h[1][2].

Steering and Travel Modes

Movement Capabilities

RTG cranes are designed with multiple travel and steering modes, including:
– Straight movement
– 90-degree lateral movement
– Oblique movement
– Pivot steering
– Ackerman steering
– Forward swing
– Retral swing[2][4].

Safety and Maintenance Features

Anti-Sway System

Many RTG cranes are equipped with anti-sway systems to ensure stable and precise operations. The Liebherr Anti-Sway System, for example, uses eight rope reeving to minimize sway in hoist, trolley, and travel directions[1].

Protective Devices

RTG cranes are fitted with various protective devices such as overload limit, deceleration limit, and stop limit switches to ensure safe and reliable functioning[2].

Maintenance

RTG cranes often feature all-electric spreaders, which reduce maintenance needs. The use of differential axles allows wheels to rotate during 90° turns, reducing tyre wear[1].

Applications

Container Handling

RTG cranes are widely used in container storage yards for stacking and transferring containers. They offer flexibility in moving around the yard without the need for fixed tracks[2][5].

Industrial and Construction Sites

These cranes are also used in manufacturing plants, construction sites, energy plants, mining operations, and various types of warehouses and workshops. Their versatility makes them suitable for handling heavy objects in diverse industrial settings[3][4].

Customization and Flexibility

Custom Designs

RTG cranes can be customized to meet specific application requirements, including varying widths, heights, and lifting capacities. This customization ensures that the crane can adapt to the unique needs of different industrial settings[2][3][4].

Operating Systems

RTG cranes are available with both electric and hydraulic drive systems, offering flexibility in terms of power and control. The electric drive system is often preferred for its efficiency and lower maintenance requirements[4].

Conclusion

Rubber Tyred Gantry (RTG) cranes are highly versatile and efficient material handling solutions that offer significant advantages in terms of flexibility, productivity, and safety. With their customizable designs, various steering modes, and robust safety features, RTG cranes are an excellent choice for a wide range of industrial applications. Understanding the key components, technical specifications, and operational capabilities of RTG cranes is crucial for selecting the right crane to meet your specific needs.

Rubber Tyred Gantry Crane China Manufacturer Guide

Given that the specific website content from https://www.sourcifychina.com/rubber-tyred-gantry-crane/ is not provided, the following guide is constructed based on the general information available about Rubber Tyred Gantry (RTG) Cranes from other reliable sources.

Guide to Rubber Tyred Gantry Cranes

Overview of Rubber Tyred Gantry Cranes

Rubber Tyred Gantry Cranes (RTGs), also known as transtainers, are versatile and mobile gantry cranes that operate on rubber tires. These cranes are widely used in ports, intermodal terminals, container yards, and various industrial settings for handling and stacking intermodal containers.

Working Principle of RTG Cranes

• Mechanical, Hydraulic, and Electrical Systems: RTG cranes operate through the synergy of mechanical, hydraulic, and electrical control systems. The main structure includes a gantry, beam, hoisting mechanism, traveling mechanism, and control system[1].
• Traveling Mechanism: The traveling mechanism is driven by a hydraulic system, allowing the crane to move flexibly on the ground and locate to the position of the goods to be loaded or unloaded.
• Hoisting Mechanism: The hoisting mechanism, driven by an electric motor, controls the wire rope to lift or lower goods.
• Control System: The electrical control system ensures the crane operates according to preset programs and parameters, enhancing safety and efficiency.

Features of RTG Cranes

High Flexibility

• RTG cranes use a tyre-type traveling mechanism, providing higher mobile flexibility compared to rail-type cranes. They can be quickly transferred between different sites and adapt to changing working environments[1].

High Operating Efficiency

• These cranes have faster traveling and lifting speeds, enabling quick completion of loading, unloading, and stacking operations, thus improving logistics transfer efficiency[1].

Strong Adaptability

• RTG cranes are suitable for various cargo types, including containers, bulk cargo, and large cargo. They can be adjusted through the lifting mechanism and beam height to achieve efficient loading and unloading[1].

Safety and Reliability

• Equipped with safety protection devices such as anti-collision systems and overload protection, RTG cranes ensure safe and reliable operation[1].

Easy Maintenance

• The modular design of RTG cranes makes maintenance and repair work easier, reducing maintenance costs[1].

Functions of RTG Cranes

Cargo Loading and Unloading

• RTG cranes are primarily used for cargo loading and unloading operations. They can accurately control the lifting height of goods and cooperate with the traveling mechanism to realize rapid loading and unloading[1].

Cargo Stacking

• In cargo yards, RTG cranes can accurately stack cargo to designated positions according to preset stacking plans. By adjusting the height of the crossbeam and travel path, they can achieve multi-layer and multi-column cargo stacking, improving yard space utilization[1].

Cargo Transfer

• RTG cranes also function in cargo transfer, transferring goods from one ship to another or from ships to land transportation means, achieving rapid transfer of goods[1].

Steering Modes of RTG Cranes

Straight Mode

• In straight mode, all wheels are aligned in the same direction, allowing the crane to move in a straight line. This mode is ideal for covering longer distances quickly and is often used for moving along predefined lanes or paths[2].

Crab Mode

• Crab mode allows the RTG crane to move diagonally by turning all wheels in the same diagonal direction. This mode is useful for quick repositioning and navigating around obstacles, reducing unnecessary turns and saving time[2].

Technical Specifications and Design

Gantry Span and Lifting Heights

• RTG cranes come with various gantry spans (e.g., 20.8 m to 37.7 m) and lifting heights (e.g., 12.3 m to 21 m) to accommodate different container stacking requirements[3].

Travel and Hoisting Speeds

• These cranes have specific travel and hoisting speeds, such as hoisting with no load at 56 m/min and with rated load at 28 m/min, and gantry travel without load at 130 m/min[3].

Power and Control Systems

• RTG cranes can be powered by diesel generator systems or electric systems. The control system is designed to ensure smooth, safe, and efficient operation, often incorporating advanced technologies like anti-sway systems and automated spreaders[3][5].

Applications and Benefits

Intermodal Container Handling

• RTG cranes are extensively used in ports and container terminals for stacking and moving intermodal containers. Their mobility and flexibility make them ideal for these environments[2][5].

Industrial Applications

• Besides container handling, RTG cranes are used in various industrial applications such as erecting large structures, assembling manufacturing components, and bridge construction due to their versatility and efficiency[5].

Automation and Safety

• Modern RTG cranes often incorporate automation technology to reduce human involvement, optimize container movements, and enhance safety. This includes automated gate systems and automated cargo handling equipment[5].

Environmental Considerations

Diesel vs Electric Power

• While diesel-powered RTGs are common, they are significant polluters. Electric RTGs (ERTGs) are increasingly being adopted to improve air quality, especially in environmentally sensitive areas[5].

Conclusion

Rubber Tyred Gantry Cranes are indispensable in modern logistics and container handling due to their high efficiency, flexibility, and safety. Understanding their working principles, features, functions, and various steering modes is crucial for optimizing their use and ensuring smooth, safe, and cost-effective material handling operations. As technology advances, RTG cranes continue to evolve with innovations in steering mechanisms, automation, and environmental sustainability.

Frequently Asked Questions (FAQs)

What are the primary uses of Rubber Tyred Gantry (RTG) Cranes in China?

Rubber Tyred Gantry (RTG) Cranes in China are primarily used for handling and stacking intermodal containers in various settings such as port yards, container storage yards, and outdoor or indoor warehouses. These cranes are versatile and can also be employed in other industrial applications, including the erection of large unbalanced structures, assembly of large manufacturing components, positioning pipelines, and bridge construction. Their mobility allows them to be used in multiple lanes for container transfers and in emergency situations to create temporary storage yards.

What are the key features and advantages of RTG Cranes?

RTG Cranes are characterized by their steel structure with high rigidity and stability, enabling precise material handling even at high speeds. They are powered by diesel generator systems or other power supply equipment, making them suitable for medium-sized material handling. The cranes feature advanced mechanisms such as heavy-duty motors, stepless speed control, and PLC control systems, which enhance their efficiency and flexibility. Additionally, their rubber tyres allow for easy movement between different locations, making them ideal for applications where traditional rail-based cranes are not feasible. The mobility of RTG Cranes also reduces the need for investing in conventional crane equipment for every single yard.

What are the different power options available for RTG Cranes?

RTG Cranes can be powered through various options to suit different operational needs. Traditionally, they are powered by diesel generator systems, which provide the necessary energy for their operations. However, to address environmental concerns, electric rubber tyred gantry cranes (ERTG) are also becoming more common. These electric versions are particularly favored in ports to improve air quality. Additionally, some RTG Cranes can be hybrid, combining different power sources to optimize performance and reduce environmental impact.

How do RTG Cranes contribute to automation and efficiency in container handling?

RTG Cranes significantly contribute to automation and efficiency in container handling through the integration of advanced technologies. They can be equipped with automation systems that optimize, track, and communicate container movements. Automated gate systems and cargo handling equipment can load, unload, and move containers with minimal human intervention, enhancing the speed and accuracy of container processing. This automation helps in streamlining intermodal operations, making the transfer of containers between ships, rails, and trucks more efficient.

What are the specifications and customization options for RTG Cranes?

RTG Cranes come with a range of specifications to cater to various operational requirements. They typically have lifting capacities ranging from 1 to 40 tons, spans from 5 to 28 meters, and lifting heights from 3 to 18 meters. The work duty levels can vary from A3 to A8, depending on the application. Control methods include remote, pendant, or cabin control. Customization is also available, allowing users to specify the lifting capacity, span, lifting height, main lifting material, control mode, and industrial voltage requirements to match their specific working conditions. This flexibility ensures that the RTG Crane can be tailored to fit the unique needs of different users.