Elevators 50 Ton Gantry Crane

 

A 50-ton gantry crane is a heavy-duty lifting device designed for industrial applications where large and heavy loads need to be moved, such as in construction sites, shipyards, manufacturing plants, and warehouses. These cranes can lift up to 50 tons of weight, making them suitable for handling bulky materials, heavy machinery, steel structures, or large containers.

Load Capacity:

50 tons means the crane can lift loads weighing up to 50 metric tons, allowing it to handle large and extremely heavy items safely and efficiently.

Gantry Structure:

The crane consists of a bridge (or girder) that spans across an open area supported by two vertical legs. These legs can either be fixed or mobile depending on whether it is a rail-mounted or rubber-tired gantry crane.

Types:

Single-Girder Gantry Crane: Uses a single beam as the bridge to support the hoist. These cranes are typically more lightweight and easier to install but still capable of lifting heavy loads.

Double-Girder Gantry Crane: Uses two beams (girders) for greater strength and stability, making it more suitable for handling heavier loads and providing a higher lifting height.

Warranty：1 Year

Weight (KG)：9860 kg

Video outgoing-inspection：Provided

Machinery Test Report：Provided

Application：Industrial Workshop Plant

Lifting Mechanism：Electric Hoist

Crane type：Sing Girder Gantry Crane

Girder Type：Single Box Girder

Control method：Remote Control

Work Duty：A4

Power Source：3 Phase 380V 50hz/ Customized

After-sales Service Provided：Online Support Provided

Color：Customized

 

 

 

1. Bridge/Girder

Function: The primary horizontal structure that spans the crane's working area, supporting the trolley and hoist.

Description: The bridge can be a single girder or double girder design, depending on the specific crane model. For a 50-ton capacity crane, a double girder is common for enhanced strength and stability.

2. Legs/Support Structures

Function: Vertical or angled structures that support the bridge.

Description: The legs connect the bridge to the ground or rail-mounted wheels. These legs are typically robust steel structures designed to withstand the weight of the load and the crane's movements. In some cases, these legs may be adjustable for varying operational heights.

 

3. Hoist

Function: The hoist is responsible for lifting and lowering the load.

Description: For a 50-ton gantry crane, the hoist is a heavy-duty electric hoist designed to lift extremely heavy loads with precision. The hoist is equipped with a hook or other lifting attachments such as slings or spreader beams to secure and lift the load.

 

4.End carriage

1. Support for the Gantry Structure:

The end carriage serves as the foundation for the crane's main girder, which spans between the two end carriages. It provides the structural support required to handle heavy lifting operations.

2. Mobility:

The end carriage enables the gantry to move along the rail system, facilitating horizontal travel over long distances. This mobility is crucial in environments such as shipping yards, warehouses, or manufacturing plants where loads need to be moved over large areas.

3. Stability:

The end carriage provides stability to the gantry crane, ensuring it remains balanced during operation, especially when lifting heavy or unbalanced loads.

The wheels or rail-mounted system prevent the crane from tipping over or shifting out of alignment during use.

4. Load Handling:

The end carriage contributes to the effective distribution of loads by supporting the main girder and lifting system, allowing the crane to perform efficient load handling in various industrial applications.

 

5. Rail Tracks (For Rail-Mounted Gantry Cranes)

Function: Provide the path along which the crane moves horizontally.

Description: For rail-mounted gantry cranes (RMG), the legs are mounted on wheels that run on fixed rails along the ground. The rails guide the crane's movement along the work area, ensuring controlled and smooth operations.

6. Wheels and Travel Mechanism

Function: Move the crane along the rails or, in the case of rubber-tired gantry cranes, allow it to move freely over the ground.

Description: In rail-mounted gantry cranes, the wheels are attached to the legs and run on rails. For rubber-tired gantry cranes (RTGs), the crane is equipped with large, durable rubber tires that allow it to move around without being confined to a track. The travel mechanism includes motors and drives that enable the crane to move efficiently.

7. Spreader Beam (Optional)

Function: Lifts and secures loads that are unusually large or heavy, especially containers or large structures.

Description: A spreader beam is attached to the hoist and helps to evenly distribute the load, making it safer to lift large or long items like shipping containers, steel beams, or other bulky materials.

8. Cabin/Operator's Control Room

Function: Houses the crane operator and the control systems.

Description: The cabin provides the operator with a clear view of the load and surrounding area. It is equipped with various control interfaces, including joysticks, levers, or push-button systems, for controlling the crane's movements. In some cases, cranes may have remote control or semi-automated systems.

9.Crane Hook

Hook Design:

1)Single Hook: The most common type used in mobile girder rail gantry cranes is the single hook design. This simple, robust design allows for the lifting of a variety of loads, from small parts to large industrial components.

2)Double Hook (if applicable): In some cases, a double hook setup is used for increased lifting capacity or for stabilizing heavier loads. This can help balance large or unbalanced loads during lifting.

3)Shape: The hook is typically curved or C-shaped, with a rounded throat and opening at the top, providing a secure place to attach lifting slings, chains, or other load-handling devices.

4)Throat Opening: The throat opening of the hook is critical for the safe and secure attachment of slings or chains. It should be sized appropriately to fit various lifting devices while maintaining strength and avoiding wear.

10.Motor

1)Efficiency and Performance: High-quality, well-maintained motors ensure that the crane performs its duties efficiently, lifting heavy loads and moving along rails with minimal energy consumption.

2)Safety: Motors designed with safety features, such as overload protection, reduce the risk of accidents during crane operation.

3)Durability: Properly selected and maintained motors can provide years of reliable service, even under challenging operating conditions.

4)Cost-Effective Operation: Energy-efficient motors and control systems, such as VFDs, reduce electricity costs and extend the life of the motor, making them more cost-effective in the long run.

.

11.Sound and light alarm system & limit switch

Sound and Light Alarm System:

1)Safety Alert: The primary purpose of the sound and light alarm system is to alert both the crane operator and people working in the area to potential hazards, such as when the crane is operating near its maximum capacity or if it's entering an unsafe zone.

2)Warning for Load Handling: The system helps ensure that workers are aware when heavy loads are being lifted or when the crane is in motion, reducing the risk of accidents.

3)Indicating Movement or Actions: The sound and light alarms are also used to signal various crane movements like traveling along tracks, hoisting, or moving the trolley, providing clear warnings to surrounding personnel.

Limit Switches:

1)Prevention of Overtravel: Limit switches prevent overtravel, which could damage the crane structure or cause dangerous conditions by preventing the crane from exceeding its operational boundaries.

2)Protecting Crane Components: They help protect critical components of the crane (like motors, cables, or tracks) from stress, wear, and potential damage caused by excessive movement.

3)Safety Protection: The limit switches are crucial for safety, as they prevent the crane from performing dangerous movements, ensuring the crane operates within a safe range at all times.

12.Safety Devices

1. Overload Protection Device:

Prevents the crane from lifting loads that exceed its rated capacity, reducing the risk of structural damage or crane failure.

The device monitors the weight of the load being lifted and automatically stops the crane's hoisting action if an overload is detected.

2. Limit Switches:Prevents the crane from traveling or hoisting beyond its safe operational limits. Limit switches are used to define the maximum and minimum positions for various crane movements (e.g., hoisting height, horizontal travel, trolley movement).

3. Emergency Stop Button (E-Stop):Allows the operator to immediately stop the crane in the event of an emergency or dangerous situation.The emergency stop button is typically located in the operator's cabin or on the crane's control panel. Pressing it cuts off power to the crane's movement mechanisms, halting the crane's actions instantly.

4. Anti-collision System:Prevents the crane from colliding with other cranes, structures, or equipment in the area.Proximity Sensors or Radar-based Systems: These systems detect nearby obstacles (including other cranes, buildings, or equipment) and warn the crane operator of an impending collision. If necessary, the system can automatically stop the crane or slow down its movement to avoid a collision.

13.Control Mode

1)Manual Control Mode:

In manual control mode, the crane operator directly controls the crane's movements through a set of physical controls (e.g., joysticks, buttons, or switches). This mode requires constant attention and input from the operator, as they are responsible for every movement of the crane.

2)Remote Control Mode:

In remote control mode, the crane is operated via a wireless control unit, which can be a handheld transmitter or a pendant controller. The operator is not confined to the crane cabin and can control the crane from a safe distance.

3)Cabin Control Mode:

In cabin control mode, the crane is operated from a control cabin that is mounted on the crane. The operator remains inside the cabin, using a joystick or a set of buttons to control the crane's movements.

4)Automatic Control Mode (Automated or Semi-Automated):

In automatic or semi-automatic control mode, the crane's operations are partly or fully controlled by an automated system. This mode is often used for repetitive tasks or in situations where precision and speed are critical.

14.Sketch

 

 

Main technical

 

 

A 50-ton gantry crane offers several advantages, particularly in heavy industrial settings where large and heavy loads need to be lifted, transported, and positioned. Here are the key advantages:

1. High Lifting Capacity

Advantage: With a load capacity of 50 tons, the crane can handle very heavy materials, making it ideal for industrial applications such as construction, shipyards, manufacturing plants, and steel yards.

Benefit: This capability makes it suitable for lifting large machinery, steel structures, shipping containers, and other bulky items, reducing the need for multiple smaller cranes.

2. Versatility

Advantage: A 50-ton gantry crane can be used for a wide range of tasks, including moving heavy industrial equipment, assembling large components, and lifting prefabricated sections.

Benefit: Its versatility makes it a valuable asset in various industries, such as shipbuilding, construction, and steel production, allowing it to handle different types of loads in various environments.

3. Efficient Material Handling

Advantage: Gantry cranes can move heavy loads over a large area quickly and efficiently, saving time and labor.

Benefit: This increases operational efficiency, speeding up processes such as loading/unloading materials, assembling parts, and moving large objects, thereby improving overall productivity.

4. Precise Load Positioning

Advantage: The crane's ability to move loads both horizontally (with the trolley) and vertically (with the hoist) provides precise control over load positioning.

Benefit: This precision is especially useful in tasks requiring careful placement, such as assembling large components or stacking heavy materials, reducing the risk of damage to the load or surrounding equipment.

5. Space-Saving Design

Advantage: Unlike fixed cranes, gantry cranes can utilize open space beneath the crane structure, allowing for efficient use of space in factories, warehouses, and shipping yards.

Benefit: By optimizing vertical and horizontal space, a gantry crane can help reduce floor space usage, which is particularly important in areas where space is limited.

6. Mobility (Rubber-Tired Gantry Cranes)

Advantage: Rubber-tired gantry cranes (RTGs) can move freely within a designated area without being confined to rails, providing flexibility in material handling.

Benefit: This mobility allows operators to move the crane to different parts of the site as needed, reducing the need for additional equipment.

7. Customizable Design

Advantage: Gantry cranes can be customized with different spans, heights, and lifting mechanisms (single or double girder) to meet specific operational needs.

Benefit: Customization ensures that the crane can be tailored to suit particular industries and applications, enhancing its functionality and adaptability.

8. Cost-Effective Solution

Advantage: Compared to fixed overhead cranes or building additional support structures, gantry cranes provide a cost-effective solution for heavy lifting in outdoor or indoor spaces.

Benefit: They can be moved to different locations within the facility, reducing the need for multiple cranes or additional fixed infrastructure.

9. Durability and Longevity

Advantage: A 50-ton gantry crane is built with robust materials (typically steel), making it durable and able to withstand harsh working conditions.

Benefit: Its longevity ensures that it can serve the facility for years with minimal maintenance, providing a reliable lifting solution.

10. Increased Safety

Advantage: Gantry cranes are equipped with multiple safety features such as limit switches, overload protection, and emergency stop systems, reducing the risk of accidents during operation.

Benefit: These safety systems ensure secure handling of heavy loads, protect workers from accidents, and prevent damage to the crane or surrounding equipment.

11. Easy Installation and Relocation

Advantage: Gantry cranes are relatively easy to install compared to fixed cranes, and if necessary, they can be relocated to different parts of a facility or job site.

Benefit: This flexibility allows companies to adapt to changing needs and reconfigure their workspace as required, without incurring significant costs for new crane installations.

12. Low Maintenance

Advantage: Due to their design, gantry cranes require minimal maintenance compared to mobile cranes or other complex lifting systems.

Benefit: Lower maintenance requirements reduce downtime and operating costs, making the crane more reliable for continuous operations.

In summary, a 50-ton gantry crane offers high lifting capacity, precision, versatility, and cost-effectiveness, making it a valuable tool for industries that require heavy lifting and efficient material handling. Its customizable and mobile design, combined with safety features, ensures that it can meet the specific needs of various operations while maintaining productivity and safety.

 

 

A 50-ton gantry crane has a wide range of applications across various industries that require the lifting, moving, and positioning of heavy loads. Here are some of the primary applications of a 50-ton gantry crane:

1. Shipbuilding and Repair Yards

Application: Used to lift and move large ship components such as hull sections, engines, and other heavy parts during the construction and repair of ships.

Benefit: The high lifting capacity of 50 tons makes the crane suitable for handling heavy ship parts with precision and safety. It can also be used to assemble or disassemble large sections of vessels.

2. Construction Sites

Application: Utilized for lifting and positioning heavy construction materials, such as steel beams, concrete blocks, prefabricated sections, and large equipment.

Benefit: The crane helps streamline material handling on construction sites, speeding up the assembly of large structures such as bridges, buildings, and infrastructure projects.

3. Steel Plants and Metal Fabrication

Application: Used to move and position heavy steel coils, sheets, plates, or structural steel components during manufacturing or storage.

Benefit: The 50-ton gantry crane ensures safe handling of large metal parts, which are common in industries like steel production, metal fabrication, and heavy manufacturing.

4. Ports and Shipping Terminals

Application: Gantry cranes are commonly employed in port and container terminals to load and unload large shipping containers, as well as to move cargo between storage areas and transport vehicles (trucks, ships, or trains).

Benefit: The 50-ton capacity allows the crane to lift fully loaded containers and other cargo quickly and efficiently, ensuring smooth operations in busy port facilities.

5. Precast Concrete Industry

Application: Used to lift and transport large precast concrete sections such as bridge segments, beams, columns, and concrete panels.

Benefit: The crane's strength and mobility make it an ideal solution for handling heavy concrete components during manufacturing, transport, and assembly.

6. Wind Turbine Construction

Application: Employed in the assembly and maintenance of wind turbines, especially for lifting large components such as turbine blades, towers, and nacelles.

Benefit: The high lifting capacity of the 50-ton crane ensures that the large, heavy parts of wind turbines can be safely handled during both onshore and offshore installations.

7. Heavy Machinery Maintenance and Assembly

Application: In industrial and mining environments, gantry cranes are used to move, lift, and install heavy machinery such as generators, compressors, turbines, and other large equipment.

Benefit: The 50-ton gantry crane ensures safe and precise positioning of machinery for both assembly and maintenance activities.

8. Railway Yards

Application: Used for handling large and heavy components, such as train engines, railway carriages, and track segments during repair or construction of railway systems.

Benefit: A 50-ton gantry crane can efficiently lift and move heavy rail equipment, enabling faster and more secure maintenance or assembly work in railway yards.

9. Aerospace Industry

Application: Used in the manufacturing and assembly of aircraft components, such as fuselages, wings, and engines.

Benefit: The 50-ton crane is capable of lifting and positioning these large, heavy components with precision, contributing to the safe and efficient construction of aircraft.

10. Mining Industry

Application: Gantry cranes are used in mining for lifting and transporting large mining equipment and ore bins, as well as assembling or disassembling heavy machinery such as crushers and conveyors.

Benefit: The crane can handle the large loads associated with mining operations, making it an essential tool for material handling in rugged environments.

11. Warehouse and Logistics Facilities

Application: Used to lift and stack heavy goods, materials, or containers in storage yards and distribution centers.

Benefit: The gantry crane allows for efficient handling of heavy loads, optimizing storage and logistics processes in large-scale warehouses or logistics hubs.

12. Power Plant Construction

Application: Utilized during the construction and maintenance of power plants (nuclear, thermal, and hydroelectric), for moving and installing large components such as turbines, generators, boilers, and transformers.

Benefit: The 50-ton gantry crane can lift the heavy equipment needed in power generation facilities, ensuring safe and efficient installation and maintenance.

13. Automotive and Heavy Equipment Manufacturing

Application: Employed in the assembly of large vehicles, heavy trucks, and construction equipment. It is also used to transport large components in manufacturing plants.

Benefit: The crane can handle the large body parts and heavy components of trucks, construction vehicles, and other heavy machinery, improving efficiency and safety in assembly operations.

14. Bridge and Infrastructure Construction

Application: Used to lift and place large bridge sections, girders, or concrete segments during bridge construction and other infrastructure projects.

Benefit: The 50-ton gantry crane provides the lifting power needed to handle the heavy components involved in infrastructure development, ensuring the safe and timely completion of projects.

15. Maritime and Offshore Industry

Application: Utilized in maritime applications such as shipbuilding and maintenance, offshore platform construction, and lifting heavy marine equipment.

Benefit: The crane's ability to lift large marine structures and equipment makes it essential for handling heavy loads in offshore and maritime projects.

In summary, a 50-ton gantry crane is an indispensable tool in industries that require the efficient and safe handling of heavy materials, machinery, and structures. Its versatility, high load capacity, and precision make it suitable for a wide range of industrial and construction applications.

 

 

1. Design and Engineering Phase

The process begins with a clear understanding of the client's specifications, including lifting capacity, span, rail system type, environment (indoor/outdoor), and specific operational needs. Based on these requirements, engineers perform calculations for load capacity, structural integrity, and safety features. They also determine factors like the crane's stability, required motor power, rail structure, and lifting mechanism.

2. Material Procurement

High-quality raw materials such as steel plates, beams, wires, and cables are procured according to the specifications outlined in the design phase.Suppliers are carefully chosen based on the required quality standards, delivery schedules, and cost-effectiveness. Materials are inspected upon delivery to ensure compliance with the specifications.

3. Fabrication and Assembly of Structural Components

Steel plates and beams are cut to the required dimensions using advanced cutting tools like laser cutters, CNC machines, or oxy-fuel cutting.After cutting, the components are welded together to form the crane's main structure. High-strength welding processes are used to ensure the joints are strong and durable.Welded joints are carefully inspected for structural integrity using non-destructive testing methods such as ultrasonic or X-ray inspection.

4. Trolley and Lifting Mechanism Assembly

The trolley, which carries the hoist and lifting mechanism, is assembled using steel beams. It is designed to fit precisely within the crane's rail system for smooth travel. The hoisting mechanism, including the winch, motors, ropes, and hook, is installed on the trolley. These components are designed for heavy-duty lifting and are carefully calibrated to ensure efficient and smooth operation.

5. Assembly of Crane Components

The main girder is mounted onto the end carriages, and the whole structure is assembled. Precision is key during this process to ensure alignment and balance. The trolley assembly is placed onto the rails of the gantry structure. This involves precise alignment to ensure smooth and efficient movement along the crane rails.The lifting mechanism is tested by attaching loads and checking for smooth operation, stability, and performance under different conditions.

6. Testing and Quality Control

The crane is first subjected to static load tests, where loads are applied to verify the crane's structural integrity and lifting capacity.The crane undergoes dynamic testing, including trolley movement, hoisting, and full gantry travel, to assess operational performance. This ensures all components, including wheels, motors, and electrical systems, work as intended.

7.Painting and Coating

Surface Preparation: The crane components are cleaned and prepped for painting to prevent rust and ensure durability.

Painting: Protective coatings are applied to the crane's structure, typically with corrosion-resistant paints to protect against weathering and wear. The crane is often painted in the company's color scheme for branding purposes and visibility.

Drying: The painted crane is allowed to dry completely before moving on to the next phase.

Workshop view:

The company has installed an intelligent equipment management platform, and has installed 310 sets (sets) of handling and welding robots. After the completion of the plan, there will be more than 500 sets (sets), and the equipment networking rate will reach 95%. 32 welding lines have been put into use, 50 are planned to be installed, and the automation rate of the entire product line has reached 85%.