In the bustling ports and container yards of China, a crucial piece of equipment has revolutionized the logistics and cargo handling landscape: the rubber tired gantry crane (RTG). These versatile and highly efficient cranes have become indispensable in modern container terminals, offering unparalleled flexibility, environmental sustainability, and operational efficiency.

This in-depth guide delves into the world of RTGs in China, exploring their key advantages, such as their ability to move freely on rubber tires, facilitating multi-directional movement and adaptability to various terrains. You will learn about the environmental benefits of electric-powered RTGs, their high energy efficiency, and how they reduce emissions and noise pollution.

Readers can expect to gain insights into the efficient operation of RTGs, including their quick positioning capabilities, precise control systems, and advanced safety features. The guide will also cover the convenient maintenance aspects of these cranes, their strong adaptability for multiple applications beyond container handling, and their role in enhancing overall logistics efficiency.

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China Rubber Tyre Double Beam Gantry Crane Wholesale

Given that the specified website is not accessible, the following guide is compiled based on the general specifications and features of double girder gantry cranes from the available sources.

Double Girder Gantry Crane: A Comprehensive Guide

Introduction

Double girder gantry cranes are versatile and highly efficient lifting solutions used in various industrial settings, including construction sites, shipyards, ports, and freight yards. These cranes are known for their high load capacity, wide span, and adjustable lifting heights.

Key Components and Features

Main Structure

• Gantry Frame: The crane consists of two main girders (beams) and two support legs. The girders can be either box-type or truss-type, depending on the application and user requirements[4].
• Legs: The legs of the crane can be designed in Type A or Type U configurations to suit different operational needs[4].

Lifting Mechanism

• Hoist Trolley: This includes the hoisting mechanism that lifts and lowers loads, and a trolley that moves horizontally along the bridge girders. For capacities over 10 tons, double girder gantry cranes often feature both main and auxiliary hoisting mechanisms to improve efficiency[3].

Traveling Mechanism

• Crane Traveling: The crane travels on rails and can be designed to accommodate various rail configurations. Steel wheels support substantial weight and ensure smooth movement[3].

Electrical System

• Power Supply: The crane can be powered by cable reels, diesel generators, or bare copper slip lines. The electrical system includes advanced components such as Schneider or Siemens electricals for reliable operation[4][5].

Technical Specifications

Load Capacity

• Double girder gantry cranes have a load capacity ranging from 5 tons to over 500 tons, making them suitable for a wide range of heavy-duty lifting applications[2][3][4].

Span

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

Lifting Height

• The lifting height of these cranes can vary from 6 meters to 30 meters or more, depending on the model and customization[2][3][4].

Speeds

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

Operational Parameters

Work Duty

• Double girder gantry cranes are classified under work duty categories A3-A7, indicating their suitability for various levels of operational intensity[2][3][4].

Track Type

• The track types include P43, QU70, QU80, and QU100, among others, which are selected based on the load capacity and operational requirements[2][3].

Control and Safety Features

Control Methods

• The crane can be controlled via pendant control, remote control, or cabin control, offering flexibility in operation[4].

Safety Features

• Advanced safety features include programmable lifting limit switches, self-adjusted disk brakes, and hard tooth reducers to ensure reliable and safe operation[5].

Applications

Industrial Settings

• Double girder gantry cranes are widely used in freight yards, construction sites, railroad terminals, shipyards, and ports for heavy-duty lifting tasks[3].

Indoor and Outdoor Use

• These cranes can be employed both indoors and outdoors, providing a versatile solution for various lifting needs[3].

Maintenance and Efficiency

Maintenance

• The cranes are designed for convenient maintenance with excellent exchangeability of parts and components. Features like low noise and commodious cabins enhance operational comfort[4].

Efficiency

• European standard double girder gantry cranes, for example, are designed with advanced technology to save electricity, reduce civil work costs, and offer high reliability and safety[5].

Conclusion

Double girder gantry cranes are robust and versatile lifting solutions that cater to a broad spectrum of industrial needs. With their high load capacity, adjustable spans, and customizable lifting heights, these cranes are essential for efficient and safe heavy-duty lifting operations. Understanding the technical specifications, operational parameters, and safety features is crucial for selecting and operating these cranes effectively.

Used rubber tire gantry cranes

Guide to Rubber Tire Gantry Cranes (RTGs)

Introduction

Rubber Tire Gantry Cranes (RTGs) are versatile and highly efficient lifting equipment widely used in ports, docks, container yards, and other logistics facilities. They offer significant advantages over traditional rail-mounted gantry cranes due to their flexibility, environmental benefits, and operational efficiency.

Key Components and Working Principle

Main Structure

• An RTG consists of a gantry, beam, hoisting mechanism, traveling mechanism, and advanced control systems[2].
• The traveling mechanism is driven by hydraulic or electric systems, allowing the crane to move freely on the ground.
• The hoisting mechanism, powered by electric motors, controls the wire rope to lift and lower goods.

Control Systems

• RTGs are equipped with sophisticated electrical control systems and sensors to ensure precise lifting, movement, and placement operations[1][2][4].

Advantages of RTGs

High Flexibility

• RTGs can move freely on the ground without the need for tracks, enabling quick adjustments within the yard and adaptability to various terrains and layouts[1][2][5].
• Multi-directional movement capabilities make them suitable for narrow yards and complex environments.

Environmental Protection and Energy Conservation

• Modern RTGs often use electric drive systems, reducing reliance on diesel engines and minimizing emissions and noise[1][5].
• They have lower energy consumption, resulting in lower operating costs and a more economical long-term operation.

Efficient Operation

• RTGs can quickly locate designated positions, reducing loading and unloading times and improving overall work efficiency[1][2].
• Advanced control systems and sensors ensure precise control over lifting, movement, and placement, reducing cargo damage.

High Safety

• RTGs are designed with windproof features to ensure stable operation in windy conditions[1].
• They are equipped with various safety devices, including collision avoidance systems, emergency braking systems, and load monitoring systems[1][2].

Convenient Maintenance

• RTGs have a simpler structure compared to fixed rail cranes, making maintenance and repair more convenient[1][2].
• The design of rubber tires and electric systems simplifies daily maintenance, reducing downtime and maintenance costs.

Strong Adaptability

• RTGs can handle a variety of cargo types, including containers, bulk goods, and large equipment, by adjusting the lifting mechanism and beam height[2][5].
• They are suitable for multiple environments, including uneven or unpaved ground, without the need for tracks.

Functions of RTGs

Cargo Loading and Unloading

• RTGs are primarily used for loading and unloading cargo from ships, vehicles, and within yards. They can accurately control the lifting height and cooperate with the traveling mechanism to achieve rapid loading and unloading[2].

Cargo Stacking

• RTGs can stack cargo to designated positions according to preset stacking plans. They can realize multi-layer and multi-column stacking, improving yard space utilization[2].

Cargo Transfer

• RTGs can transfer goods between ships, from ships to land transportation, or within the yard, facilitating rapid cargo transfer[2].

Technical Specifications and Features

Gantry Span and Lifting Heights

• RTGs come in various gantry spans (e.g., 20.8 m to 37.7 m) and lifting heights (e.g., 12.3 m to 21 m)[3][4].

Safe Working Load

• The safe working load of RTGs can range from 40.6 tons to 65 tons, depending on the configuration (single or twin)[3][4].

Travel and Hoisting Speeds

• RTGs have high travel speeds (up to 130 m/min) and hoisting speeds (up to 56 m/min), contributing to their efficiency[4].

Advanced Features

• Features include anti-sway systems, simultaneous drive motion, direct driven travel systems, and options for DGPS auto steering and container positioning[3][4][5].
• Some models offer energy storage solutions, variable speed engines, and full electric operation to reduce fuel consumption and emissions[4].

Operational Benefits

Increased Productivity

• RTGs enhance productivity through faster travel and lifting speeds, precise control systems, and minimal spreader positioning times[2][4][5].

Automation Readiness

• RTGs are designed for automation, with features like simultaneous drive motion, anti-sway systems, and container positioning systems, making them ideal for automated operations[3][4][5].

Low Maintenance and Energy Costs

• The robust and modular design of RTGs reduces maintenance costs and downtime. They also offer lower energy consumption and fuel costs, especially with electric or hybrid power options[1][4][5].

Conclusion

Rubber Tire Gantry Cranes are indispensable in modern logistics and cargo handling due to their high flexibility, environmental benefits, efficient operation, high safety standards, convenient maintenance, and strong adaptability. Their advanced features and technical specifications make them a preferred choice for enhancing productivity and reducing operational costs in various cargo handling environments.

Rubber Tire Gantry Crane – Henan, China

Given that the specific webpage from trends.directindustry.com is not accessible, the following guide is compiled based on the available information from other reliable sources about Henan Weihua Heavy Machinery Co., Ltd.

Company Overview

Founding and History

• Henan Weihua Heavy Machinery Co., Ltd. was founded in 1988.
• It is the core subsidiary of Weihua Group Co., Ltd.

Development and Growth

• Over 34 years of development, Weihua has become a large-scale logistics equipment manufacturing enterprise.
• The company is dedicated to R&D, design, manufacturing, sales, erection, service, import, and export business.

Products and Services

Product Range

• Weihua produces over 200 types of products across 9 series, including:
• Overhead and gantry cranes
• European series cranes
• Portal machines
• Electric hoists
• Intelligent multifunctional cranes
• Automated Guided Vehicles (AGVs)
• Bulk material handling equipment
• Port equipment
• Comprehensive solutions for turn-key material hoisting and handling engineering[2][4].

Industry Applications

• Weihua products are widely used in various industries such as:
• Machinery manufacturing
• Ferrous metallurgy
• Nuclear energy
• Mining
• Hydropower
• Highway and railway
• Electrical power
• Automobile making
• Petrochemical industry
• Port logistics
• Ship-building industry
• Aerospace[1][2].

Manufacturing and Production

Facilities and Capacity

• Weihua Group covers an area of 3,420,000 square meters with super large intelligent workshops.
• The company has 1700 sets of manufacturing and testing facilities.
• It boasts an annual output of 30,000 hoists and 6,000 overhead and gantry cranes[2][3].

Technology and Innovation

• Weihua has a strong focus on technological innovation, with a 1,000-engineer R&D team.
• The company holds over 1,200 national patents, including technologies such as anti-sway control systems, wire rope multi-layer winding drum anti-tilt devices, and three-dimensional configuration simulation control systems[1][2].

Production Efficiency

• The intelligent operation of production lines, real-time scheduling of production processes, and automation of material distribution have increased production efficiency by 80% and reduced the production cycle by 70%[3].

Global Presence and Market

Export and International Customers

• Weihua products are exported to over 130 countries, including the USA, Russia, UK, France, Australia, Thailand, Malaysia, Pakistan, UAE, Ukraine, and Mexico.
• The company supplies products to international well-known companies such as Samsung Heavy Industries, Sheffield Steel Corporation, and Port Authority of Thailand[2].

Certifications and Standards

• Weihua products and the company have obtained various certifications such as ISO9001, 14001, OHSAS18001, CE, EAC, CUTR, SGS, and BV.
• The production process adheres to world standards like FEM, DIN, and CMAA, using renowned brands for electrical systems and accessories[2].

Awards and Honors

Recognitions

• Weihua Group was named “Intellectual Property Advantageous Enterprise in Henan Province” in 2008 and “National Intellectual Property Pilot Unit” in 2009.
• The company has been awarded “Fulfill Economic Contract Capacity and AAA Credit Rating” for many years.
• Weihua brand bridge and gantry cranes won “China Famous Brand” and “Top China Brand” in 2006.
• In 2009, the company was awarded “National High-tech Enterprise” and “The 2009 Quality Credit AAA Grade Industrial Enterprise in Henan Province”[1].

Customer Support and Service

After-Sales Service

• Weihua has its own installation company and 100 service agents overseas, ensuring timely after-sales support.
• The company also has a port crane production base in Lianyungang, facilitating fast shipping and reducing transportation and time costs[2].

Financial and Human Resources

Financial Overview

• Weihua Group has a registered capital of USD 94 million and total assets of USD 530 million (or approximately 4.79 billion Yuan)[1][4].

Human Resources

• The company employs over 7,200 people, with an average working experience of 8 years.
• There are more than 2,000 employees in the core subsidiary, Henan Weihua Heavy Machinery Co., Ltd.[1][2].

By understanding these aspects, you can gain a comprehensive insight into Henan Weihua Heavy Machinery Co., Ltd.’s capabilities, products, and global presence, as well as its commitment to innovation and customer service.

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, container yards, manufacturing plants, and construction sites. Here is an in-depth guide to the features, applications, and specifications of RTG cranes.

Applications and Uses

RTG cranes are designed for flexible and precise material handling in diverse environments, including:
– Port Yards and Container Terminals: For stacking and moving containers efficiently.
– Outdoor Storage and Warehouses: Ideal for handling heavy loads in indoor and outdoor storage facilities.
– Manufacturing Plants and Construction Sites: Used for lifting and moving heavy equipment and materials.
– Wind Energy Industry: Employed for lifting and transporting wind turbines[3].

Design and Structure

Main Components

• Gantry Frame: Typically consists of two main beams and legs, often constructed as a box type for added stability.
• Hoisting Mechanism: Equipped with heavy-duty motors and high-quality hooks for reliable lifting operations.
• Cross Travelling and Long Travelling Mechanisms: Utilize gear motors with hardened gears and stepless speed control for smooth movement.
• Rubber Tyres: Pneumatic tubeless tyres with excellent heat dissipation and durability, allowing for flexible movement without fixed rails[3].

Features and Advantages

Mechanisms and Controls

• Hoisting Mechanism: Heavy-duty motor, super drum for longer rope lifetime, and high-strength hooks.
• Cross Travelling: 3-in-1 gear motor with hardened gear and stepless speed control.
• Long Travelling: Non-coupling transmission and modular design for efficient movement.
• Free Turning: PLC control system and rubber tyred wheels enable free turning[1].

Control Methods

• Remote or Pendant Control: Options include remote radio control, pendant control, and cabin control for optimal operation[1][3].

Power Supply

• Diesel Generator Systems: Often mounted on the crane for independent power supply, or other power supply equipment can be used[1][2].

Safety and Reliability

• Overload Limiters: Prevent overloading to ensure safe operation.
• Deceleration and Stop Limit Switches: Protect the crane from sudden stops and ensure controlled deceleration.
• Anti-Sway Systems: Enhance stability during lifting operations[2][3].

Specifications

Capacity

• Single Girder RTG Cranes: Typically range from 1T to 40T[1].
• Double Girder RTG Cranes: Can handle loads up to 200T[2].

Span and Lifting Height

• Single Girder RTG Cranes: Span from 5m to 28m, lifting height from 3m to 18m[1].
• Double Girder RTG Cranes: Customizable spans and lifting heights based on application requirements[2][4].

Work Duty

• Class A3-A5: Suitable for medium to heavy-duty applications[1][4].

Ambient Temperature

• Operational Range: Up to 50°C for extreme weather conditions, and as low as -20°C in some models[2][4].

Customization

RTG cranes can be customized to meet specific application requirements:
– Capacity, Span, and Lifting Height: Tailored to the needs of the user.
– Control Mode: Options include pendant, remote, and cabin control.
– Power Supply: Can be adapted to different power sources and industrial voltages[1][3][4].

Operational Benefits

• Flexibility: No need for fixed rails, allowing for extreme flexibility in movement.
• Productivity: Enhances material handling efficiency by shortening handling times and optimizing material flow.
• Safety: Reduces congestion and improves safety in confined spaces and limited working sites[3].

Conclusion

RTG rubber tyred gantry cranes offer a robust, flexible, and efficient solution for various material handling needs. Their ability to operate without fixed rails, combined with advanced safety features and customizable designs, makes them an ideal choice for a wide range of industrial applications.

China Rubber Tyred Gantry Crane …

Since the provided websites do not include the specific content from http://www.stonimage.com/rtg-crane-c.html, I will create a comprehensive guide based on the general information available from the other sources.

Rubber Tyred Gantry (RTG) Cranes: A Comprehensive Guide

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 characterized by their ability to travel on rubber tires, providing flexibility and efficiency in container handling operations.

Key Specifications and Parameters

Lifting Capacity

• RTG cranes typically have a lifting capacity ranging from 20 to 45 tons, with some models capable of lifting up to 100 tons under the spreader[1][4][5].

Span

• The span of an RTG crane indicates the distance between the outer edges of the two legs and can range from 22 to 28 meters, covering various container row widths (e.g., 5 to 10 containers wide plus a truck lane)[1][2][5].

Lifting Height

• The lifting height of RTG cranes varies to accommodate different container stacking heights, typically ranging from 1 over 3 to 1 over 6 containers high[1][2][5].

Wheel Configuration

• RTGs can have different wheel configurations 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, with considerations for environmental impact, cost, and availability of power sources[1][3].

Operational Capabilities

Travel and Lifting Speeds

• RTG cranes have varying travel speeds, typically ranging from 45 to 90 meters per minute. Lifting speeds can range from 12 to 46 meters per minute[1][5].

Operating Temperature

• Most RTG cranes are designed to operate within a temperature range of -20°C to 40°C[1][5].

Steering and Movement

• RTGs are equipped with advanced steering systems, including pivot steering and Ackerman steering, allowing for 90-degree lateral motion and other complex movements[5].

Design and Components

Gantry Frame

• The gantry frame consists of the main beam and the legs, typically constructed as a box type for stability[5].

Running Mechanism

• The running mechanism includes the driving device, wheel groups, and protective devices such as overload limit, deceleration limit, and stop limit switch protection[5].

Electrical System

• RTG cranes often feature advanced electrical systems, including AC drives and robust control systems designed to ensure efficient and reliable operation[2][5].

Spreader and Anti-Sway System

• RTGs are equipped with container spreaders and anti-sway systems, such as the eight rope reeving system, to minimize sway and ensure precise container handling[1][2].

Safety and Reliability

Protective Devices

• RTG cranes are equipped with various protective devices to ensure safe and reliable operation, including overload limits, deceleration limits, and stop limit switches[5].

Maintenance

• Electric-powered RTGs often have lower maintenance requirements due to the absence of head blocks and the use of all-electric spreaders[2].

Applications

Ports and Container Yards

• RTG cranes are essential in ports and container yards for efficient container handling and stacking[1][4][5].

Intermodal Terminals

• They are also used in intermodal terminals to facilitate the transfer of containers between different modes of transport[1].

Outdoor Workplaces

• RTGs are suitable for outdoor workplaces such as freight yards, shipyards, and rail terminals due to their mobility and flexibility[5].

Customization and Flexibility

Custom Designs

• RTG cranes can be customized to meet specific operational requirements and working conditions, including different lifting capacities, spans, and lifting heights[1][4][5].

Remote Control and Intelligent Features

• Some RTG cranes can be equipped with remote control systems and intelligent features to enhance operational efficiency and safety[3][5].

Conclusion

Rubber Tyred Gantry cranes are vital components in modern container handling operations, offering flexibility, efficiency, and reliability. By understanding the key specifications, operational capabilities, and design components of RTG cranes, users can make informed decisions to optimize their container handling processes.

Double Girder Rubber Tired Gantry Crane …

Since the specific website you mentioned is not accessible in the provided search results, I will create a comprehensive guide based on the information available from similar sources on double girder rubber tyred gantry (RTG) cranes.

Double Girder Rubber Tyred Gantry Cranes: A Comprehensive Guide

Introduction

Double girder rubber tyred gantry cranes are versatile and highly efficient material handling solutions, widely used in various industrial settings such as ports, construction sites, warehouses, and shipyards. These cranes offer exceptional flexibility, productivity, and safety, making them a preferred choice for heavy-duty applications.

Key Components and Design

Gantry Frame

The gantry frame of a double girder RTG crane consists of two horizontal girders supported by A-frame legs. This design provides increased lifting capacity and stability compared to single girder cranes[4].

Wheels and Mobility

These cranes are mounted on rubber tires, allowing them to move freely without the need for fixed rails. This mobility enhances their flexibility and productivity in various work environments[2][3].

Hoisting Mechanism

The hoisting mechanism, typically electric or hydraulic, is mounted on the girder and includes components such as pulleys, gears, and motors. This mechanism enables the crane to lift loads vertically and move them horizontally along the length of the girder[4].

Parameters and Specifications

Load Capacity

Double girder RTG cranes can handle load capacities ranging from 30 tons to over 200 tons, depending on the model and configuration. This makes them suitable for a wide range of heavy-duty lifting tasks[1][5].

Span and Lifting Height

The span of these cranes refers to the distance between the two vertical legs and can be customized to meet specific operational needs. Lifting heights can also be tailored, typically ranging from 6 meters to 18 meters or more[2][3].

Duty Cycle

The duty cycle indicates the operational frequency and intensity of use. Double girder RTG cranes are classified into different duty cycles, ensuring they can withstand the demands of various applications[2].

Travel Speed

The travel speed of these cranes can be adjusted and typically ranges from 16 to 50 meters per minute, enhancing operational efficiency[2].

Operational Features

Control and Steering

Double girder RTG cranes can be controlled via radio remote control or from a cabin. They often feature advanced steering systems such as two-wheel steering (2WS), pivot steering, and Ackerman steering, allowing for precise and flexible movement[1][3].

Safety Features

These cranes are equipped with various safety features including anti-sway systems, load limiters, emergency brakes, and protective devices like overload limit, deceleration limit, and stop limit switches. These features ensure safe and reliable operation[1][3].

Applications

Ports and Container Yards

Double girder RTG cranes are commonly used in ports and container yards for efficient container handling, loading, unloading, and stacking[2][3].

Construction Sites

They are ideal for construction sites where they can handle and position heavy components such as precast concrete beams, columns, and panels[3].

Industrial Plants and Warehouses

These cranes are also used in industrial plants and warehouses for general material handling, providing flexibility and efficiency in moving heavy loads[2][3].

Advantages

Flexibility and Mobility

The rubber tire design allows these cranes to move freely across the work area without the need for fixed rails, enhancing their flexibility and productivity[2][3].

Customization

Double girder RTG cranes can be customized to meet specific application requirements, including span, lifting height, and load capacity[1][3].

Safety and Reliability

Advanced safety features and robust engineering ensure safe and reliable operation, reducing the risk of accidents and downtime[1][3].

Maintenance and Efficiency

Maintenance Costs

These cranes are designed to reduce maintenance costs through efficient design and robust components. Regular maintenance can further ensure maximum machine uptime[5].

Operational Efficiency

With adjustable travel speeds and precise control systems, double girder RTG cranes can significantly enhance operational efficiency, reducing the time required for lifting and moving heavy loads[2][5].

Conclusion

Double girder rubber tyred gantry cranes offer a powerful and flexible solution for heavy-duty material handling needs. Their ability to be customized, advanced safety features, and high operational efficiency make them a valuable asset in various industrial settings. Understanding the key components, parameters, and operational features of these cranes can help in selecting the right model for specific applications, ensuring optimal performance and safety.

China Rubber-Tyre Type Gantry Crane Manufacturers …

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

Rubber Tyre Gantry (RTG) Cranes: A Comprehensive Guide

Introduction

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

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[2][3][4].

Legs and Cross Beams

The legs are vertical support structures that connect the main girder to the base. Rubber tired cranes usually have four legs, with tires mounted at the base for mobility. Cross beams or cross girders provide stability and connect the legs at the bottom, ensuring structural integrity[2][3].

Wheels and Tyres

RTG cranes are equipped with large, heavy-duty rubber tires, typically in configurations of four, eight, or more. These tires support the crane’s weight and enable smooth movement. The tire sizes can vary, such as 18.00 – 25 or 14.00 – 24, depending on the model[1][2][3].

Operational Parameters

Lifting Capacity

RTG cranes have a wide range of lifting capacities, from 5 tons to 800 tons and above. This versatility allows them to handle various lifting tasks across different industries[2][3][5].

Span and Lifting Height

The gantry span can range from 5 meters to 40 meters, accommodating different container widths and truck lanes. Lifting heights can vary from 6 meters to 30 meters, depending on the stacking requirements[1][3][5].

Travel and Steering Modes

RTG cranes are designed with various travel and steering modes, including straight movement, 90-degree lateral movement, oblique movement, pivot steering, Ackerman steering, forward swing, and retral swing. These modes enhance flexibility and efficiency in different working conditions[2][3].

Technical Specifications

Speeds

• Hoisting speed: Typically 28 m/min with rated load and 56 m/min with no load.
• Trolley speed: 70 m/min with and without load.
• Gantry travel speed: Up to 130 m/min without load and 70 m/min with rated load[1][4].

Classification and Working Conditions

RTG cranes are classified according to F.E.M. standards (e.g., U7-Q2-A7) and can operate in various environmental conditions, including wind speeds up to 151.2 km/h (out of service) and yard slopes of 1:100 in either direction[1].

Power and Drive Systems

Drive Options

RTG cranes can be powered by diesel engines or fully electric systems. Liebherr’s RTGs, for example, offer a dual-speed diesel engine, variable speed engines, and full electric options with energy storage solutions to reduce fuel consumption and energy costs[4].

Drive Mechanism

The drive mechanism includes direct-driven travel systems with electric motors, one per corner, which reduce tyre wear and energy consumption. The system also features no head block, reducing rope load and tare weight[1][4].

Safety and Automation Features

Anti-Sway System

RTG cranes often feature advanced anti-sway systems, such as Liebherr’s eight rope reeving system, to ensure precise and stable operations even at high speeds[1][4].

Automation and Control

Modern RTG cranes can be equipped with automation features like DGPS auto steering, container positioning systems, and remote control operations. These features enhance productivity, reduce downtime, and improve safety[4].

Protective Devices

RTG cranes are equipped with protective devices such as overload limit, deceleration limit, and stop limit switches to ensure safe and reliable operation[3].

Advantages and Applications

Flexibility and Productivity

RTG cranes offer significant flexibility and productivity due to their ability to move freely without fixed tracks. This makes them ideal for container handling, steel tank manufacturing, automotive mold production, and other industrial applications[2][3][5].

Maintenance and Energy Efficiency

The design of RTG cranes emphasizes low maintenance and energy efficiency. Features like direct-driven travel systems and energy storage solutions contribute to reduced fuel and energy costs[1][4].

Conclusion

Rubber Tyre Gantry cranes are highly versatile and efficient tools for material handling, offering a range of benefits including flexibility, productivity, and safety. With customizable designs, advanced drive systems, and automation features, RTG cranes are well-suited for various industrial applications, making them a valuable asset in modern material handling operations.

Rubber Tyre Container Gantry Crane

Rubber Tyred Gantry (RTG) Cranes: A Comprehensive Guide

Introduction

Rubber Tyred Gantry (RTG) cranes are mobile systems designed to move and stack storage containers efficiently and flexibly. These cranes are essential in container terminals, ports, and various other industrial settings where intermodal operations are critical.

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: Ensures stable container handling.
– Crane Travel Mechanism: Enables the crane to move along the yard.
– Turning Mechanism: Facilitates directional changes.
– Trolley Traverse Mechanism: Allows the trolley to move along the crane’s beam.
– Container Spreader: Attaches to and lifts containers.
– Diesel Generating Sets: Provides power, although many modern RTGs are electrically powered.
– Electrical Equipment: Includes inverters, PLCs, and CMMS (fault monitor systems) for advanced control and monitoring.

Design Features of RTG Cranes

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 are versatile and can handle various container sizes and types. They can stack containers in multiple rows and heights, maximizing space utilization. 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, allowing for rapid movement and positioning of containers. This improves the overall productivity and throughput of the terminal.

Environmental Friendliness

Compared to other types of cranes, RTG cranes offer environmental advantages. Many are electrically powered and use advanced energy management systems, reducing emissions and noise levels. This makes 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 Efficiency and Safety

Operator Comfort and Safety

RTG cranes prioritize operator comfort and safety. They feature ergonomic cabins with excellent visibility, air conditioning, and advanced control systems. These enhancements improve productivity and ensure safe container handling.

Remote Control and Automation

Modern RTG cranes often come with remote control and automation capabilities. Features include container positioning systems, anti-collision systems, and advanced software for optimized container handling. These technologies enhance operational efficiency and prepare the cranes for future automation.

Applications

RTG cranes are widely used in various settings, including:
– Container Terminals and Ports: For efficient handling of shipping containers.
– Logistics: To manage container movement and storage.
– Construction Sites: For handling heavy construction materials.
– Power Plants: To manage large equipment and components.
– Shipyards: For moving and positioning ship components.
– Wind Energy: To handle wind turbine components.
– Concrete Precast: To manage precast concrete elements.

Capacity and Customization

RTG cranes are available in a range of capacities, typically from 5 to 500 tons. They can be customized to meet specific needs, including different types such as single beam, double beam, and A-frame types.

Conclusion

Rubber Tyred Gantry cranes are indispensable tools in modern container handling and logistics. Their mobility, versatility, and efficiency make them a preferred choice for various industrial applications. With advanced features such as remote control, automation, and environmental friendliness, RTG cranes continue to evolve to meet the changing needs of container terminals and other industries.

China Rubber Tire Gantry Crane Manufacturers, Suppliers

Since the specific website you mentioned is not accessible, the following guide is compiled based on the comprehensive information available from other reliable sources on the topic of Rubber Tyre Gantry Cranes (RTGs).

Outline

• Introduction to Rubber Tyre Gantry Cranes
• Working Principle of RTG Cranes
• Features of RTG Cranes
• High Flexibility
• High Operating Efficiency
• Strong Adaptability
• Safety and Reliability
• Easy Maintenance
• Functions of RTG Cranes
• Cargo Loading and Unloading
• Cargo Stacking
• Cargo Transfer
• Steering Modes of RTG Cranes
• Straight Mode
• Crab Mode and Transverse Mode
• Advantages of Using RTG Cranes
• Adaptability and Movement
• Effective Use of Space
• Versatility in Applications
• Automation and Technological Advancements
• Environmental Considerations
• Conclusion

In-Depth Guide to Rubber Tyre Gantry Cranes

Introduction to Rubber Tyre Gantry Cranes

Rubber Tyre Gantry (RTG) cranes are versatile and mobile gantry cranes equipped with rubber tires, allowing them to move freely across paved or semi-paved surfaces without the need for rail tracks. These cranes are widely used in ports, intermodal terminals, construction sites, and other logistics transfer places due to their high efficiency, flexibility, and safety.

Working Principle of RTG Cranes

The working principle of RTG cranes is based on the synergy of mechanical, hydraulic, and electrical control systems. The main structure includes:
– Gantry: The main frame of the crane.
– Beam: The horizontal beam that spans the width of the crane.
– Hoisting Mechanism: Driven by an electric motor, it winds the wire rope up or down to lift or lower goods.
– Traveling Mechanism: Powered by a hydraulic system, it allows the crane to move flexibly on the ground.
– Control System: Precisely controls the entire operation according to preset programs and parameters.

Features of RTG Cranes

High Flexibility

RTG cranes adopt a tyre-type traveling mechanism, which provides higher mobile flexibility compared to rail-type cranes. They can be quickly transferred between different sites and adapt to changing working environments[1][3][5].

High Operating Efficiency

RTG cranes have faster traveling and lifting speeds, enabling them to quickly complete loading, unloading, and stacking operations. This enhances the efficiency of logistics transfer[1][3][5].

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[1][3].

Safety and Reliability

RTG cranes are equipped with perfect safety protection devices such as anti-collision systems and overload protection, ensuring the safety and reliability of the operation process[1][3].

Easy Maintenance

The modular design of RTG cranes makes maintenance and repair work easier, reducing maintenance costs[1][3].

Functions of RTG Cranes

Cargo Loading and Unloading

One of the main functions of RTG cranes is to carry out 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][3][5].

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 the travel path, they can realize multi-layer and multi-column cargo stacking, improving yard space utilization[1][3].

Cargo Transfer

RTG cranes also function in transferring goods from one ship to another or from ships to land transportation means, achieving rapid transfer of goods[1][3].

Steering Modes of RTG Cranes

Straight Mode

In straight mode, all wheels of the RTG crane are aligned in the same direction, allowing the crane to move in a straight line. This mode is ideal for moving the crane over longer distances across the yard[2].

Crab Mode and Transverse Mode

These modes allow the crane to move sideways or at an angle, which is particularly effective in saving time during container handling operations. They reduce the need for multiple repositioning maneuvers, streamlining the loading and unloading processes[2].

Advantages of Using RTG Cranes

Adaptability and Movement

RTG cranes have unrestricted mobility within their operational area, unlike rail-mounted cranes which are limited to fixed tracks. This makes them perfect for locations with limited space such as busy ports and building sites[3][5].

Effective Use of Space

RTG cranes can work in confined locations where rail-mounted cranes might not be feasible. They can make the best use of available space by moving around barriers and changing positions as needed[3].

Versatility in Applications

RTG cranes are adaptable devices with a broad range of applications. They are valuable in port container handling operations, construction for lifting and moving bulky supplies, and other industries due to their versatility[3][5].

Automation and Technological Advancements

RTG cranes are increasingly being integrated with automation technology to reduce human involvement in processing and handling cargo. Automation helps in optimizing, tracking, or communicating container movements and uses automated cargo handling equipment to load, unload, and move containers[5].

Environmental Considerations

While RTG cranes are often powered by diesel generator systems, which can be polluting, there is a growing trend towards electrification. Electric RTG cranes are being adopted to improve air quality, especially in ports[5].

Conclusion

Rubber Tyre Gantry Cranes are indispensable equipment in modern logistics and material handling operations. Their high flexibility, efficiency, adaptability, and safety make them a crucial component in various industries. Understanding their working principle, features, functions, and advantages is essential for optimizing their use and ensuring smooth, safe, and cost-effective material handling operations. As technology continues to advance, RTG cranes are likely to see further innovations, enhancing their versatility and application across a wide range of industries.

Rubber Tire Gantry Crane

Rubber Tyre Gantry Crane: A Comprehensive Guide

Introduction

Rubber Tyre Gantry (RTG) cranes are versatile and essential equipment in modern logistics, particularly in ports, terminals, and container storage yards. They offer high efficiency, flexibility, and safety in cargo handling operations.

Working Principle of RTG Cranes

• Mechanical, Hydraulic, and Electrical Systems: The working principle of RTG cranes is based on 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 the 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 or lower goods. The electrical control system ensures precise operation according to preset programs and parameters.

Features of RTG Cranes

High Flexibility

• RTG cranes 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

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

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.

Safety and Reliability

• Equipped with safety protection devices such as anti-collision systems and overload protection, RTG cranes ensure the safety and reliability of the operation process.

Easy Maintenance

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

Functions of RTG Cranes

Cargo Loading and Unloading

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

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 the travel path, they can realize multi-layer and multi-column cargo stacking, improving yard space utilization.

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.

Applications of RTG Cranes

• Ports and Terminals: RTG cranes are extensively used in ports and terminals for container handling and transshipment.
• Manufacturing and Construction: They are used in various industries such as steel tank manufacturing, automotive injection mold production, and construction sites for lifting and handling heavy loads.
• Intermodal Operations: RTG cranes facilitate intermodal operations by moving containers between different modes of transport (ship, rail, truck) without the need for unloading and reloading.

Types of RTG Cranes

• Single Beam and Double Beam: Available in single beam and double beam configurations to suit different lifting requirements.
• A-Frame Tyre and Straddle Carrier: Different structural designs such as A-frame tyre and straddle carrier configurations are available for various working conditions.
• Customizable Dimensions: RTG cranes can be customized in terms of width, height, and lifting attachments to adapt to specific lifting and handling requirements.

Key Components of RTG Cranes

Main Girder

• The horizontal beam that spans the crane’s width, supporting the hoist and trolley, built from high-strength steel.

Legs

• Vertical support structures that connect the main girder to the base, with tires mounted at the base for mobility.

Cross Beam or Cross Girder

• Beams that provide stability and connect the legs at the bottom of the crane, ensuring structural integrity.

Steering and Travel Modes

• Straight Movement: RTG cranes can move straight forward and backward.
• 90-Degree Lateral Movement: They can execute 90-degree lateral movements.
• Oblique Movement: Capable of moving diagonally at 45 degrees.
• Pivot Steering: Can turn in place.
• Ackerman Steering: Provides precise steering similar to automotive steering systems.
• Forward Swing and Retral Swing: Additional movement capabilities for enhanced flexibility.

Safety and Automation Features

• Anti-Sway System: Prevents sway in hoist, trolley, and travel directions.
• Anti-Collision System: Ensures safety by preventing collisions.
• Auto Steering and Container Positioning: Optional features include auto steering and container positioning using DGPS.
• Remote Access and Destination Control: Allows for remote operation and precise control over the crane’s movements.

Maintenance and Energy Efficiency

• Low Maintenance Costs: Modular design and robust structure reduce maintenance needs.
• Energy Efficiency: Full-electric RTG solutions and variable-speed engines minimize fuel consumption and energy costs.
• Eco-Efficiency: Designed to reduce carbon emissions through optimized power usage.

Conclusion

Rubber Tyre Gantry cranes are indispensable in modern logistics due to their flexibility, efficiency, and safety features. Their ability to handle various cargo types, adapt to different working environments, and provide high productivity makes them a valuable asset in ports, terminals, and other logistics facilities. With customizable designs, advanced safety features, and energy-efficient operations, RTG cranes are a superior choice for efficient material handling.

Frequently Asked Questions (FAQs)

What are the primary uses of rubber tire gantry cranes in China?

Rubber tire gantry cranes (RTGs) in China are primarily used for handling and transporting intermodal containers in ports, container yards, and railway container depots. They are designed to straddle multiple lanes, facilitating the storage and transfer of inbound and outbound containers between drayage trucks and vessels. Apart from the intermodal industry, RTGs are also extensively used in various industrial applications such as erecting large unbalanced structures, assembling large manufacturing components, positioning pipelines, and bridge construction.

What are the advantages of using rubber tire gantry cranes?

The mobility of rubber tire gantry cranes is one of their significant advantages. This mobility allows RTGs to be widely applied in different settings without the need for a fixed rail or electrical grid. They can be powered by diesel generator systems or, increasingly, by electric power to reduce environmental impact. RTGs also feature advanced automation technology to optimize, track, and communicate container movements, reducing human involvement and enhancing efficiency.

How do rubber tire gantry cranes differ in terms of power sources?

Rubber tire gantry cranes can be powered by either diesel generator systems or electric power. Diesel-powered RTGs are common but are known to be significant polluters, consuming up to 10 US gallons of diesel fuel per hour. In contrast, electric rubber tired gantry cranes (ERTGs) are becoming more popular, especially in environmentally sensitive areas, as they offer a cleaner and more sustainable alternative. ERTGs use electrical systems with PLC frequency adjustment for better control and efficiency.

What safety features are typically included in rubber tire gantry cranes?

Rubber tire gantry cranes are equipped with several safety features to ensure the safety of operational personnel and equipment. These include overload protection devices, proper safety instructions, and advanced electrical systems that use PLC frequency adjustment for precise control. Additionally, RTGs often have large resistor packs to rapidly dissipate energy when containers are being lowered or decelerated, preventing potential accidents.

Can rubber tire gantry cranes be customized for specific applications?

Yes, rubber tire gantry cranes can be customized to meet specific application requirements. Manufacturers offer a range of configurations, including different load capacities (from a few tons to over 100 tons), single or double girder designs, and various types of control systems. Customized RTG cranes can be designed to handle unique tasks such as side lifting, mobile operations, or specialized industrial needs, making them versatile tools for a variety of industries.