LH Double Girder Electric Hoist Bridge Crane – High-Performance Overhead Lifting Solution for Heavy Loads

I. General introduction

The LH Double Girder Electric Hoist Bridge Crane is a robust and reliable lifting device designed for handling heavy loads in factories, workshops, and industrial facilities. It utilizes an electric wire rope hoist that travels along two main girders, offering a lifting capacity ranging from 5 to 32 tons. Standard lifting heights are 6m, 9m, or 12m, with custom options also available.

Featuring a box-type welded double-girder structure, this crane provides superior load-bearing capacity and minimizes beam deflection. This design allows the hook to achieve a higher lifting position, maximizing usable space within your facility. Compared to a single-girder crane, the LH double-girder structure ensures greater stability, making it ideal for handling large and heavy loads safely.

LH Double Girder Crane in a factory setting, showcasing its heavy lifting capabilities.

Significance in modern manufacturing

In the context of Industry 4.0, where efficiency and safety are paramount, the LH Double Girder Electric Hoist Bridge Crane plays an indispensable role. It is not merely a lifting device but a comprehensive solution that helps businesses optimize their production processes.

This product provides superior stability when lifting heavy loads, ensuring absolute safety for both workers and assets. With its precise and continuous operation, the LH crane helps to accelerate and streamline the movement and assembly of heavy components, significantly reducing production time and costs.

Furthermore, thanks to its flexible control options, such as pendant control, wireless remote, or an operator's cabin, the LH crane allows operators to work under the most favorable and safest conditions. This contributes to minimizing manual labor and enhancing overall productivity, creating a strong competitive advantage for businesses across various industries.

II. Structure & working principle

1. Main components

The LH Double Girder Electric Hoist Bridge Crane is composed of several key parts designed for strength, stability, and efficient operation:

• Main girders: Two box-type welded steel beams that serve as the primary load-bearing structure, ensuring rigidity and minimal deflection under heavy loads.

• End carriages: Fitted with wheels and a drive system, they allow the entire crane to travel along elevated runway rails.

• Hoisting mechanism: Utilizes an electric wire rope hoist, which is mounted on a trolley that travels horizontally along the top rails of the main girders.

• Motors & gear reducers: Provide smooth, high-torque power for both the hoisting and traveling motions of the crane.

• Control system: Offers flexible operation modes, including a pendant control, wireless remote control, or an operator's cabin.

• Power supply system: Delivers stable electricity to the crane and hoist via a busbar or a cable festoon system.

• Hook assembly & attachments: Can be adapted with different lifting accessories to suit various loads (standard hook, grab bucket, electromagnetic lifter, etc.).

• Safety devices: Includes buffers, overload limiters, travel limit switches, and emergency stop systems to ensure safe operation.

Close-up view of the crane's main components: electric hoist and double girder structure

2. Working principle

The LH Double Girder Electric Hoist Bridge Crane operates through the coordinated combination of three basic movements:

1. Lifting/lowering: The electric hoist uses a steel wire rope mechanism to raise or lower the load vertically.

2. Trolley travel: The hoist's trolley moves horizontally along the rails on the main girders, positioning the load within the crane's span.

3. Crane travel: The entire bridge crane moves longitudinally along the runway rails, covering the full working area of the facility.

The seamless combination of these three movements allows the LH crane to handle loads with precision, ensure efficient material transfer, and provide full spatial coverage, making it ideal for tasks that require both heavy lifting and accurate positioning.

III. Key features, Technical specifications & Product comparison

1. Key features of the LH Double-Girder Electric Hoist Crane

• High load capacity: Capable of lifting to 32 tons (customizable for heavier loads).

• Double-girder structure: Provides superior stability and reduced deflection under heavy loads.

• Optimized hook height: Maximizes vertical lifting space for improved workspace utilization.

• Multiple control options: Pendant control, wireless remote, or cabin control for operational flexibility.

• Durable build: High-grade steel structure with anti-corrosion coating for a long service life.

• Smooth & precise operation: A dual-speed hoist motor ensures accurate load positioning.

• Customizable span & lifting height: Tailored to meet specific site requirements.

Illustrating the wide span and optimized lifting height of the LH crane

2. Technical specifications

3. Comparison with other crane types

Quick insight:

The LH Double-Girder Electric Hoist Crane is the optimal choice for heavy-duty, long-span, and continuous lifting tasks where stability, precision, and durability are essential.

IV. Applications & industry use cases

1. Core application areas

The LH Double-Girder Electric Hoist Crane is engineered for heavy-duty lifting in environments where strength, precision, and reliability are paramount. Common application areas include:

• Manufacturing & fabrication: Handling large machinery parts, assembly lines, and fabrication processes.

• Steel Mills & foundries: Transporting molten metal containers, heavy steel coils, and castings.

• Warehouses & logistics: Efficiently moving bulk materials and large palletized goods.

• Mining & energy: Lifting equipment, heavy ore containers, and maintenance materials.

• Ports & shipyards: Loading/unloading heavy cargo, ship components, and containers.

• Construction sites: Lifting precast concrete elements, steel structures, and large tools.

Another perspective of the robust double girder construction, emphasizing stability

2. Why this crane excels in these industries

The LH crane is the ideal choice for these industries due to its superior advantages:

• High load capacity: Perfect for handling extremely heavy items without compromising stability.

• Wide span coverage: Efficiently covers large workspaces, reducing the need for multiple cranes.

• Durability in harsh environments: Built to withstand dust, moisture, heat, and other industrial challenges.

• Operational flexibility: Customizable control options (remote, pendant, or cabin) meet specific operational needs.

Practical application insight:

In steel manufacturing, the crane's double-girder design ensures minimal deflection, which is crucial when handling high-value heavy loads like molten metal containers. In shipyards, its optimized hook height is invaluable for lifting large hull components without spatial interference.

The LH double girder crane is in operation within a manufacturing facility, highlighting its industrial application

V. Operation, Maintenance & Safety Guidelines for LH Double-Girder Electric Hoist Crane

1. Operating Guidelines – How to Use the Crane Safely and Efficiently

Operating the LH Double-Girder Electric Hoist Crane correctly is crucial to ensuring both safety and equipment longevity.

• Qualified operators only – Only trained and certified crane operators should be permitted to control the machine.

• Pre-start inspection – Check all components before operation: wire ropes, hooks, brakes, limit switches, control systems, and load path.

• Smooth operations – Avoid sudden acceleration, deceleration, or sharp directional changes to minimize load sway.

• Load limit compliance – Never exceed the rated load capacity, even for short lifts.

• Clear communication – Use hand signals or radios to maintain constant communication between the operator and ground staff.

• Balanced lifting – Ensure the load is evenly distributed to prevent overloading one side of the crane.

2. Maintenance & inspection schedule

Proper maintenance not only extends the service life but also ensures consistent performance.
Daily maintenance

• Visually inspect wire ropes for fraying or broken strands.

• Check hooks for deformation or cracks.

• Test brakes and limit switches.

• Verify that control buttons are responsive.

Weekly maintenance

• Lubricate all moving parts, including gears, wire ropes, and sheaves.

• Check for loose bolts or nuts.

• Inspect the hoist drum for smooth operation.

Monthly maintenance

• Test electrical connections for wear or overheating.

• Examine the crane rails for wear, cracks, or misalignment.

• Check end stops for secure positioning.

Annual maintenance

• Conduct load testing to verify rated capacity.

• Perform a full inspection of structural integrity, including girders and end carriages.

• Replace worn-out parts with genuine manufacturer-approved components.

3. Safety precautions

Safety is a non-negotiable priority in crane operations.

• Work zone control – Keep unauthorized personnel away from the crane’s operating area.

• Warning systems – Use alarms, indicator lights, and warning signs during operation.

• Emergency stop readiness – Ensure the emergency stop button is functional at all times.

• Weather considerations – Avoid operating in extreme weather without proper protective measures.

• Compliance with standards – Follow relevant regulations such as ISO, FEM, and OSHA safety requirements.

4. Troubleshooting common issues

• Crane fails to start – Check the main power supply and control circuit fuses.

• Abnormal noise during operation – Inspect bearings, gearboxes, and lubrication levels.

• Wire rope slipping – Adjust drum tension and check rope winding direction.

• Uneven lifting – Inspect load distribution and hoist synchronization.

5. FAQs

Q: Can this crane be used outdoors?

Yes, but it requires weatherproofing, anti-corrosion coating, and suitable IP-rated electrical enclosures.

Q: What is the typical lifespan?

With correct operation and maintenance, service life can exceed 15–20 years.

Q: Can I customize the lifting height and span?

Absolutely. TXLET offers full customization to match your project requirements.

Q: How often should I replace the wire rope?

Replacement is recommended when visible wear, broken strands, or diameter reduction beyond standards is detected.

VI. About TXLET & Why Choose Us

TXLET (Henan TX Lifting Equipment Co., Ltd.) is a professional manufacturer and supplier of industrial lifting solutions, with over a decade of experience serving factories, warehouses, construction sites, and ports worldwide.

We specialize in designing, producing, and installing:

• Overhead Cranes – Single/Double Girder, Gantry, and Suspension types.

• Electric Hoists – Wire rope and chain hoists in various capacities.

• Custom Lifting Systems – Tailor-made to meet unique operational requirements.

Our products comply with international quality and safety standards such as ISO, FEM, and CE, ensuring reliable performance in demanding environments.

Why Choose TXLET?

• Proven Track Record – Hundreds of successful installations in multiple industries.

• Quality First – Use of premium materials and advanced manufacturing technology.

• Full Customization – Adjustable lifting height, span, and speed to meet your exact needs.

• Global Support – Export experience to over 30 countries with dedicated after-sales service.

• Competitive Pricing – High performance without compromising cost efficiency.

Related Products

Discover more from our lifting equipment range:

QD Double Girder Overhead Crane – Heavy-duty solution for large workshops and industrial plants.

CD1/MD1 Electric Wire Rope Hoist – Compact and versatile lifting for various industries.

European Type Electric Hoist – High-performance design with FEM/ISO standards.

MH Single-Girder Gantry Crane – Ideal for outdoor material handling and yard operations.

Whether you need a standard LH Double-Girder Electric Hoist Crane or a fully customized lifting system, TXLET is ready to deliver the right solution for your business.

 Contact Us Today

TXLET – Your Trusted Partner for Reliable & Efficient Lifting Solutions.