500 Tons Double Beam Gantry Crane

 

500 Ton Double Beam Gantry Crane – Introduction

A 500-ton double beam gantry crane is a high-capacity, heavy-duty lifting solution engineered for the most demanding industrial and infrastructure applications. This type of crane is designed to handle massive loads with precision and stability, making it an essential piece of equipment in shipyards, steel mills, power plants, and large-scale construction projects.

Overview:

The crane consists of two parallel girders (double beam design), supported by robust gantry legs that travel along ground rails. This configuration allows for superior load distribution, enhanced structural strength, and increased lifting capacity.

Key Specifications:

Lifting Capacity: Up to 500 tons

Span: Customizable based on operational needs

Lifting Height: Tailored to specific application requirements

Crane Type: Rail-mounted, double girder gantry crane

Power Source: Electric (with options for energy-efficient drives and controls)

Main Features:

Double Girder Design: Provides increased strength and rigidity for handling ultra-heavy loads.

High-Performance Hoisting Mechanism: Equipped with powerful winches, motors, and precision gearboxes for smooth and reliable lifting.

Robust Gantry Structure: Heavy-duty steel construction with high resistance to fatigue and environmental stress.

Advanced Control System: PLC-controlled with options for cabin, pendant, or remote operation.

Safety Systems: Includes overload protection, emergency braking, limit switches, anti-collision sensors, and wind anchoring systems.

Applications:

Shipbuilding and Offshore Engineering: Lifting ship blocks, hull sections, and offshore modules.

Steel and Metal Industry: Handling ladles, molds, coils, and structural steel components.

Power and Energy Sector: Installation of turbines, generators, and other large equipment.

Infrastructure Projects: Bridge construction, precast segment handling, and heavy lifting operations.

Advantages:

Exceptional load-bearing capacity for the heaviest industrial tasks.

Reliable performance under continuous and demanding operational conditions.

Custom engineering solutions for unique project requirements.

High safety standards to protect operators and equipment.

Long service life with minimal maintenance due to durable design.

 

Core Components PLC, Engine, Bearing, Gearbox, Motor, Pressure vessel, Gear, Pump

Place of Origin Henan, China

Warranty 1 Year

Weight (KG) 30000 kg

Application Precast yard, construction site, warehouse, etc.

Product name 40 ton straddle carrier rubber tired single girder gantry cranes

Crane Type A Type, Single Girder, Double Girder Straddle Carrier

Lifting mechanism Customer Requirements

Control Method Cabin Control+Remote Control

Lifting Capacity 5~1200 Ton

Multiple Steering Modes Go straight, transverse traveling, carousel steering, etc.

Install On-site and online

Motor Famous brand

Work Duty A3~A5

 

 

Double Main Girders

Two parallel box-type steel girders that form the primary load-bearing structure.

Designed for high strength, rigidity, and reduced deflection under ultra-heavy loads.

May include a maintenance walkway and rails for the trolley.

 

 

 

Trolley and Hoisting Mechanism

Mounted on the double girders, the trolley travels along the span of the crane.

Contains the hoisting system, including:

Main winch (for primary 500-ton lifting)

Auxiliary hoist (for lighter or more precise lifts)

Wire rope drum, motors, and gearbox for controlled lifting and lowering.

 

End Carriages / Gantry Legs

Vertical or A-frame structures connecting the main girders to the ground.

Support the full load of the crane and transfer it to the ground via rail wheels.

One leg may be rigid, and the other articulated to absorb structural stress.

 

4.Crane travelling mechanism

Key Components of the Travelling Mechanism Drive System:Electric motors: Provide the power for movement.Gearboxes: Control the speed and torque of the motors.Wheels and Rails:Wheels are mounted at the base of the gantry legs or on a trolley. They are typically made of high-strength steel to handle heavy loads.Rails are fixed on the ground or a beam, guiding the wheels for smooth travel.

Braking System:Electromagnetic or mechanical brakes ensure stability by preventing unwanted movement when stationary.Controls:Operated manually (via a control panel or pendant) or through wireless remote control systems.

Travelling Mechanism Types,Gantry Movement:The entire gantry crane structure moves along a fixed rail system.Trolley Movement:A trolley equipped with a hoist travels horizontally along a beam (cross-travel) while the gantry remains stationary.

Safety Mechanisms:Anti-collision devices: Prevent accidental impacts between cranes or structures.Limit switches: Ensure safe stopping at end points.

Maintenance Tips,Regularly inspect wheels and rails for wear and alignment.Lubricate moving parts to ensure smooth operation.Check the electrical system for faults or damage.

 

Long Travel Mechanism

Located on the gantry legs, this system includes motors, gearboxes, and wheels.

Allows the crane to move longitudinally along the rail system.

Synchronized drives ensure smooth and accurate motion, even with massive loads.

 

Crane wheel

Key Features of Crane Wheels;Material:Typically made from high-strength steel or alloyed materials to withstand heavy loads and resist wear.Common materials include carbon steel, forged steel, or heat-treated steel to enhance durability.

Design:Flat Wheels: Used for flat-topped rails, allowing lateral movement flexibility.Flanged Wheels: Feature a flange on one side to prevent derailment and maintain alignment with the rail.Double-Flanged Wheels: Provide additional safety by keeping the wheel securely on the track, often used in heavy-duty applications.Tread Profile: Designed to distribute the load evenly and reduce wear.

Tread Profile: Designed to distribute the load evenly and reduce wear.Dimensions:Vary depending on the size and capacity of the crane.Key parameters include wheel diameter, tread width, and flange thickness.Mounting:Mounted on axles or shafts, either directly or via bearings.Bearings reduce friction and enable smooth rotation.

Crane Hook

Key Features of Crane Hooks Material:Typically made from high-strength materials such as forged steel or alloy steel.Designed to withstand heavy loads, impact forces, and harsh working conditions

Design:Single Hook: A simple, straight design used for general lifting tasks.Double Hook: Features two prongs, used for balancing heavier loads and reducing stress on each hook.Rotating Hook: Allows 360-degree rotation for precise load positioning.Safety Latch: Most crane hooks include a latch to prevent the load from slipping off the hook.

Load Capacity:Varies widely depending on the crane's design and application.Clearly marked on the hook for operator safety.

Hook Shapes:C-Hook: Used for handling coils and cylindrical loads.Eye Hook: Features a circular eye for secure attachment to the hoist or chain.Clevis Hook: Includes a U-shaped clevis and pin for quick attachment.

Motor

Key Features of Crane Motors Motor Types:Squirrel Cage Induction Motors:Commonly used for their durability and low maintenance.Suitable for applications requiring constant speed.Slip Ring Induction Motors:Used where variable speed is needed, such as in hoisting mechanisms.Servo Motors:Provide precise control, often used in advanced cranes.Brake Motors:Include built-in braking systems for immediate stopping.

Power Rating:Ranges from a few kilowatts for small cranes to hundreds of kilowatts for heavy-duty industrial cranes.The rating depends on the crane's lifting capacity and operational requirements.

Design:Duty Cycle: Designed for intermittent or continuous operation, depending on the application.Insulation: High-grade insulation to withstand harsh industrial environments.Cooling: Equipped with cooling systems (fan-cooled or liquid-cooled) to prevent overheating.

Control Features:Motors often work with Variable Frequency Drives (VFD) or motor controllers for:Speed control.Smooth acceleration and deceleration.Reduced power consumption.

Sound and light alarm system & limit switch

Key Features of the Alarm System,Audible Alarm (Sound)Emits a loud, distinct sound, such as a siren or buzzer, to alert workers.Typically activated during crane operation, load movement, or in emergencies.Sound level: Adjusted to ensure audibility over background noise.Visual Alarm (Light);High-intensity flashing or rotating lights (commonly red or yellow) provide a visual warning.Helps alert personnel in noisy environments or when hearing protection is used.

Control Integration;Activated automatically during specific operations (e.g., hoisting, traveling) or manually by the operator.Often integrated with other safety systems like anti-collision sensors.Functions of the Alarm System Movement Alerts: Warn workers when the crane or load is in motion.Collision Prevention: Signal potential obstructions or proximity to other equipment.

Emergency Indication: Highlight faults, overload conditions, or other emergencies.Maintenance Tips Regularly test sound levels and light visibility.Replace worn-out bulbs, LED, or speakers.Ensure proper wiring and connection to the control system.

Safety Devices

Safety Devices in Stationary Gantry Cranes,Safety devices in stationary gantry cranes are essential for protecting workers, equipment, and materials during operation. They help prevent accidents, ensure smooth crane operations, and comply with workplace safety regulations.

used in stationary gantry cranes: Overload Protection Device Function: Prevents the crane from lifting loads exceeding its rated capacity.

Mechanism:Equipped with load cells or strain gauges to measure the load weight.Automatically interrupts the hoist operation if the load exceeds the limit.Importance: Protects the crane structure and prevents accidents caused by overloading.

Anti-Collision Devices,Function: Detects proximity to other cranes, structures, or obstacles.Mechanism:Uses sensors like ultrasonic, infrared, or radar to detect objects.Triggers alarms or stops crane movement to prevent collisions.Importance: Reduces the risk of accidents and equipment damage in multi-crane environments.

Emergency Stop System,Function: Allows operators to immediately halt all crane operations in emergencies.Mechanism:Operated via buttons located on the control panel, remote control, or at accessible positions.Disconnects power to critical systems.Importance: Provides quick response capability during emergencies, minimizing risks.

Anti-Sway System,Function: Minimizes load swaying during lifting and movement.Mechanism:Employs advanced control systems to counteract pendulum effects.Uses sensors and software to adjust motor speeds dynamically.Importance: Enhances precision and safety during load handling.

 

11.Control Mode

1. Types of Control Modes for Stationary Gantry Cranes,Pendant Control;Description: The operator uses a wired or wireless pendant control unit to operate the crane from a safe distance.Components: A handheld device with buttons or joysticks for controlling movement and functions.

2. Cabin Control;Description: The operator is stationed in a control cabin that is mounted on the crane or nearby the crane's operating path.Components: Equipped with buttons, joysticks, pedals, and sometimes touchscreens for controlling crane functions.

3. Remote Control;Description: Uses a wireless remote control device, which can be handheld or worn on the operator's body.Components: A compact device with buttons or joysticks, similar to a pendant control but without a cable.

4.Automatic Control (Automated Control);Description: The crane operates according to pre-programmed commands and sequences without operator intervention.Components: Includes sensors, programmable logic controllers (PLC), and control software that manage the crane's functions.

 

Sketch

 

Main technical

 

 

 

Advantages of a 500 Ton Double Beam Gantry Crane

1. Ultra-High Lifting Capacity

Designed to handle extremely heavy and oversized loads up to 500 tons.

Ideal for large-scale industrial projects such as lifting ship blocks, turbines, steel structures, or precast segments.

2. Superior Structural Strength

Double beam design provides maximum load-bearing capacity and structural rigidity.

Reduced deflection and enhanced stability under full load, even during long-span lifting.

3. Precision and Control

Equipped with synchronized hoisting mechanisms and variable frequency drives (VFDs) for smooth lifting and accurate positioning.

Ideal for critical lifts where safety and alignment are crucial.

4. Customizable and Versatile

Span, height, lifting speed, and attachments can be customized based on project needs.

Can be equipped with main and auxiliary hoists for different lifting scenarios (e.g., rough and fine positioning).

5. Efficient Use of Space

Freestanding gantry design eliminates the need for overhead building structures or columns.

Maximizes working area in open yards, shipyards, and assembly zones.

6. Rail-Mounted Mobility

Allows for precise, linear movement along fixed rails across large sites.

Ideal for repeated lifting tasks over long distances (e.g., between workshops, docks, or assembly lines).

7. Long Service Life

Built with high-grade steel and corrosion-resistant materials for durability.

Suitable for continuous heavy-duty operations in harsh outdoor environments.

8. High Safety Standards

Integrated with advanced safety features including:

Overload protection

Emergency stops

Anti-collision systems

Windproof anchoring

Limit switches

Ensures safe operation for both personnel and equipment.

9. Reduced Labor and Time

Enables the efficient movement of heavy loads with minimal manual intervention.

Increases productivity and reduces downtime in industrial workflows.

10. Automation and Remote Operation

Can be integrated with PLC systems, remote controls, and SCADA interfaces.

Supports smart manufacturing and port digitization initiatives.

 

 

1. Shipbuilding and Marine Engineering

Lifting and assembling ship blocks, hull sections, and engine modules

Launching and positioning of ship components

Used in dry docks, shipyards, and offshore fabrication yards

2. Heavy Equipment Manufacturing

Handling large machinery parts, turbines, engines, and presses

Assembly and movement of power generation equipment such as hydro, wind, or thermal power components

3. Steel and Metallurgical Plants

Transporting steel billets, coils, molds, or casting ladles

Ideal for foundries, rolling mills, and fabrication shops

4. Infrastructure and Civil Construction

Bridge construction: Lifting precast concrete segments and girders

Tunnel boring projects: Moving shield segments and support rings

Hydropower stations: Handling penstocks, gates, and turbines

5. Aerospace and Defense

Moving large aerospace components (e.g., fuselage sections, rockets)

Used in aerospace assembly lines or defense manufacturing plants

6. Nuclear and Thermal Power Plants

Lifting and placing reactor components, steam generators, and pressure vessels

Supporting maintenance operations in controlled zones

7. Offshore Oil & Gas

Lifting heavy subsea modules, manifolds, platform equipment

Common in fabrication yards for oil rigs and subsea structures

8. Logistics Hubs for Oversized Cargo

Moving large and over-dimensional cargo within specialized logistics terminals

Assisting in project cargo loading and unloading for rail or ship transport

 

 

1. Design stage: Determine the parameters of the crane, such as rated load, span and lifting height, according to the customer's needs and working environment. Carry out detailed structural design, including main beam, end beam, crane, lifting mechanism, etc., to ensure that the design meets safety standards and usage requirements. Select appropriate materials according to the design, usually high-strength steel to ensure the stability and durability of the structure.

2. Manufacturing stage: Prepare the required raw materials and parts according to the design drawings. Cut, bend and shape the steel to prepare structural components such as main beams and end beams. Weld the various components and assemble them into an overall structure. This step requires guaranteed welding quality to ensure strength and stability.

3. Machining: Machining key components such as motors, gears, bearings, etc. to ensure that their size and accuracy meet the requirements. Anti-corrosion treatment of components, such as painting and galvanizing, increases the durability and aesthetics of the equipment.

4. Electrical system installation: Install electrical components such as motors, controllers, switches, sensors and alarm systems. Connect and wire cables to ensure the normal operation of the electrical system.

5. Assembly phase: Assemble all components and systems as a whole, connect the lifting mechanism, trolley running mechanism and control system. Perform a comprehensive inspection of the assembled crane to ensure that all components and systems are working properly, and perform preliminary debugging.

6. Testing phase: Perform static load test on the crane to check the structural strength and stability. Perform dynamic test on the crane, including tests on lifting, moving, braking and other functions, to ensure that its performance meets the design requirements. Check the functions of safety devices, such as limit switches, overload protection, etc., to ensure the safety of the equipment during operation.

7. Quality control: Perform quality control on each link in the production process to ensure compliance with industry standards and customer requirements. Record various data and inspection results in the production process for subsequent traceability and analysis.

8. Delivery and installation: Pack and prepare the completed crane for transportation to ensure that it is not damaged during transportation. Deliver the crane to the customer's site for installation, and perform on-site debugging and acceptance. Provide operation training to customers to ensure that they are proficient in the use and maintenance of the crane.

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%.