Semi Gantry Crane & Single Leg Gantry Crane
Single Girder / Double Girder Gantry Crane Design up to 32 Ton

Semi gantry cranes are versatile and widely used across various industries due to their efficient design and adaptability. Here are some of the most common applications:

• Manufacturing: In manufacturing plants, semi gantry cranes are often used to move heavy machinery and equipment, handle raw materials, and assist in the assembly process. Their ability to operate in tight spaces makes them ideal for areas with limited headroom or floor space.
• Warehouses: In warehouse settings, semi gantry cranes facilitate the efficient movement of goods and materials. They are used for loading and unloading trucks, moving pallets, and organizing inventory, particularly in warehouses where a full gantry crane would be too large or cumbersome.
• Shipyards and Ports: Semi gantry cranes are employed in shipyards for lifting and transporting heavy ship components, machinery, and equipment. Their design allows them to work alongside other cranes and machinery, optimizing space usage and providing flexibility in handling large, heavy items in challenging environments.
• Automotive Industry: In the automotive sector, these cranes are used for handling large vehicle components such as engines and chassis. Their ability to cover large areas while maintaining a low profile makes them ideal for assembly lines and maintenance bays.
• Construction Sites: On construction sites, semi gantry cranes assist in lifting and moving building materials like steel beams, concrete blocks, and other heavy materials. Their mobility allows them to be easily relocated, providing flexibility in dynamic construction environments.

Overall, semi gantry cranes are a practical solution for various industrial sectors, combining the benefits of overhead cranes and gantry cranes. Their unique design makes them suitable for facilities where space and adaptability are critical.

Design Features

Structure:

• Beam Configuration: The crane features a single overhead beam or girder that supports the load. One side of the beam is supported by an overhead track or rail, while the other side rests on a set of wheels or a rail system on the ground.
• Support Mechanism: The ground-supported side typically includes wheels or rollers, allowing the crane to move along a fixed track or rail, which enables efficient movement across the workspace.

Load Capacity:

• Typical Range: Single girder semi gantry cranes commonly handle loads ranging from 1 ton to 10 tons. This capacity makes them suitable for various light to medium-duty applications.

Construction:

• Design Complexity: The single girder design is generally lighter and less complex compared to double girder cranes. This simplicity in design reduces the overall cost of the crane.
• Material Efficiency: Constructed using fewer materials, single girder cranes are both cost-effective and efficient in terms of material usage.

Cost-Effective:

• Affordability: Due to the simpler design and fewer components, single girder semi gantry cranes are more affordable compared to their double girder counterparts. This makes them an attractive option for businesses looking to manage budget constraints while still obtaining reliable lifting equipment.

Lightweight:

• Ease of Maneuvering: The reduced weight of single girder cranes makes them easier to maneuver and install, especially in areas where space is limited or where overhead lifting requirements need to be optimized.
• Installation: Lighter construction facilitates quicker and simpler installation, minimizing downtime and disruption to operations.

Lower Maintenance:

• Fewer Moving Parts: With a simpler structure and fewer components, single girder semi gantry cranes typically require less maintenance compared to more complex designs.
• Reduced Wear and Tear: The reduced number of parts means fewer opportunities for wear and tear, leading to lower maintenance costs and fewer operational interruptions.

Benefits

Efficiency:

• Productivity Enhancement: Single girder semi gantry cranes improve productivity by allowing for the quick and efficient handling of loads. Their design facilitates smooth movement of materials, which helps streamline workflow and operational processes.

Flexibility:

• Adaptability: These cranes are particularly suited for environments with space and height constraints. Their ability to operate in confined areas makes them ideal for applications in warehouses, small manufacturing facilities, and other tight spaces.
• Versatility: The ability to adjust spans and lifting heights allows for flexibility in various applications, accommodating different operational needs and configurations.

Single girder semi gantry cranes offer a blend of simplicity, cost-effectiveness, and efficiency, making them a practical choice for many industries. Their design features and benefits cater to a range of operational environments, ensuring reliable performance and enhanced productivity.

Design Features of Double Girder Semi Gantry :

• Structure: Features two parallel beams (girders) that provide support for the crane, with one end mounted on an overhead rail and the other end resting on wheels or a rail system on the ground.
• Load Capacity: Usually ranges from 10 tons to 20 tons and can be customized for higher capacities.
• Construction: Robust and heavy-duty, designed to handle larger and heavier loads.

Advantages:

• Higher Load Capacity: Capable of lifting heavier loads compared to single girder cranes.
• Enhanced Stability: Provides greater stability and can span wider areas.
• Better Performance: Suitable for heavy-duty tasks and applications requiring higher reliability and durability.

Benefits:

• Heavy-Duty Performance: Ideal for industries requiring high lifting capacities and extended spans.
• Operational Efficiency: Facilitates the handling of large and bulky items, improving workflow and productivity.

Both single and double girder semi gantry cranes offer distinct advantages depending on the specific needs of the application, load requirements, and workspace constraints. By selecting the appropriate type, businesses can optimize their material handling processes and enhance overall operational efficiency.

Applications:

• Steel Mills: Handling large steel coils and beams.
• Shipyards: Moving massive sections of ships or heavy marine equipment.
• Construction Sites: Lifting large building components like concrete panels or steel structures.
• Heavy Manufacturing: Moving large machinery parts or assemblies.

The robust design and customizable features of double girder semi gantry cranes make them ideal for heavy-duty applications where reliability, performance, and safety are critical.

Customizations and Considerations:

• Load Distribution: Double girder design provides enhanced load distribution across the span, reducing the stress on individual components and improving stability.
• Span and Lift Height: The capacity of these cranes can be influenced by the span and lift height. Larger spans or higher lift heights typically require cranes with higher load capacities to ensure safe operation.
• Operational Conditions: Capacities can vary based on the specific operational environment and requirements. Custom features or modifications can be made to meet unique needs, such as extreme temperatures or corrosive environments.

• Capacity Range: Single girder semi gantry cranes typically handle loads ranging from 1 ton to 10 tons. They are designed for light to medium-duty tasks, making them suitable for applications that do not require extremely high lifting capacities.

Typical Applications: These cranes are ideal for operations where space, cost, and ease of installation are crucial factors. Common applications include:

• Assembly Lines: Used for moving smaller components and parts during the assembly process.
• Maintenance Operations: Perfect for tasks that involve routine maintenance, where moderate lifting capabilities are sufficient.
• Warehouses: Effective for handling inventory and moving goods around, particularly in facilities with limited headroom or floor space.

Advantages: Single girder semi gantry cranes offer several benefits:

• Cost-Effective: Less material is required for construction, making them a more economical choice compared to double girder designs.
• Lightweight: The reduced weight simplifies installation and reduces stress on the building structure.
• Ease of Installation: Fewer components mean quicker and simpler installation, reducing downtime and labor costs.
• Low Maintenance: With fewer moving parts and less weight, these cranes generally require less maintenance, resulting in lower long-term operating costs.

Capacity Range: Double girder semi gantry cranes are built for heavier loads, typically ranging from 10 tons to 20 tons, and can be customized for even higher capacities. This makes them well-suited for more demanding applications where strength and stability are paramount.

Typical Applications: These cranes are designed for heavy-duty industrial environments that require robust lifting capabilities. Common applications include:

• Steel Mills: Used to handle large coils of steel, heavy equipment, and raw materials.
• Shipyards: Ideal for moving heavy ship components, engines, and other large parts during the shipbuilding and repair processes.
• Construction Sites: Employed for lifting heavy building materials, such as steel beams and concrete sections, where durability and strength are essential.

Advantages: Double girder semi gantry cranes provide several key benefits:

• Higher Load Capacity: Capable of handling much heavier loads than single girder designs, making them suitable for more intensive tasks.
• Better Stability: The additional girder offers enhanced stability, allowing the crane to handle larger and heavier items with greater precision.
• Wider Span Capabilities: Can cover a broader area, providing increased operational flexibility and efficiency in larger facilities.

Design Features:

• Structure and Materials: Typically built with materials that are suitable for controlled indoor environments. May use standard steel or aluminum construction with less emphasis on corrosion resistance.
• Space Considerations: Designed to operate in confined or limited spaces with consideration for indoor clearance and height restrictions.
• Power Supply: Generally powered by electric systems compatible with standard indoor power sources.

Advantages:

• Space Efficiency: Ideal for facilities where space is limited, such as warehouses, manufacturing plants, and assembly lines.
• Reduced Maintenance: Less exposure to environmental elements reduces wear and tear.
• Precision Handling: Often equipped with fine-tuned controls suitable for handling delicate or precise tasks.

Typical Applications:

• Manufacturing Plants: Handling parts and materials in assembly lines or production areas.
• Warehouses: Moving pallets, crates, and other goods within storage areas.
• Maintenance Facilities: Assisting with maintenance and repair tasks for machinery and equipment.

Benefits:

• Cost-Effective: Lower cost due to fewer requirements for weatherproofing and corrosion resistance.
• Improved Efficiency: Streamlined design tailored for indoor operations enhances productivity and handling efficiency.

Design Features:

• Durable Materials: Constructed with corrosion-resistant materials, such as galvanized steel or stainless steel, to withstand outdoor elements like rain, wind, and UV exposure.
• Weatherproofing: Includes features to protect mechanical and electrical components from environmental factors, such as waterproof controls and weather-resistant coatings.
• Robust Construction: Built to handle the additional stresses of outdoor environments, including varying temperatures and potential exposure to harsh conditions.

Advantages:

• Weather Resistance: Designed to operate reliably in outdoor conditions, including extreme weather scenarios.
• Enhanced Durability: Built to last with components specifically chosen for their resistance to rust and corrosion.
• Versatility: Can be used in a variety of outdoor settings, including construction sites, ports, and open-air warehouses.

Typical Applications:

• Construction Sites: Moving heavy construction materials, such as steel beams and concrete panels.
• Ports and Shipyards: Handling large cargo, shipping containers, and marine equipment.
• Outdoor Storage Areas: Managing bulk materials and equipment in open-air environments.

Benefits:

• Operational Reliability: Maintains performance and safety in varying outdoor conditions.
• Increased Lifespan: Longer service life due to durable construction and weatherproofing features.

Both indoor and outdoor semi gantry cranes are designed to meet the specific needs of their environments, ensuring efficient operation and longevity. By choosing the appropriate crane for the intended setting, businesses can optimize their material handling processes and adapt to their operational conditions effectively.

Explosion-Proof Components:

• Certification: Cranes are often built to comply with standards such as ATEX (for Europe) or NEC (for North America) for explosive atmospheres. Components are certified to prevent sparks or heat that could ignite hazardous substances.
• Sealed Enclosures: Electrical and control systems are housed in explosion-proof enclosures to prevent ignition of hazardous gases or dust.

Corrosion-Resistant Materials:

• Materials Used: Constructed from materials like stainless steel or specially coated metals to resist corrosion from chemicals or saltwater.
• Protective Coatings: Coatings such as epoxy or zinc-rich primers are applied to enhance durability in corrosive environments.

Temperature Control:

• Heat Resistance: Designed to operate in extreme temperatures, with heat-resistant materials and components.
• Cooling Systems: Some cranes include integrated cooling systems to prevent overheating in high-temperature environments.

Enhanced Safety Features:

• Overload Protection: Equipped with sensors and alarms to prevent lifting beyond the crane's capacity.
• Emergency Shutdown: Includes emergency stop buttons and automatic shutdown systems in case of system failure or safety breaches.

• Girder Choice: Single girder for compact, low-headroom applications; double girder for higher lifting height and heavier loads
• Grab Bucket: Motorized, hydraulic, or electro-hydraulic grab bucket for handling cement, slag, coal, sand, grain, and other bulk materials
• Speed Control: Dual-speed or frequency-conversion (VFD) for smooth lifting and precise grab operation
• Environment Protection: Anti-corrosion coating, rain cover, dust-proof and heat-resistant design for outdoor or harsh environments
• Automation Options: Semi-automatic or fully automatic grab operation for continuous production processes

Chemical Processing Plants:

• Handling: Moving and transferring chemical drums, reactors, and other hazardous substances.
• Features Needed: Corrosion resistance, explosion-proof electrical systems, and temperature control.

Oil and Gas Industry:

• Handling: Lifting and moving heavy equipment, pipes, and other materials in explosive or high-temperature environments.
• Features Needed: Explosion-proof design, rugged construction, and high load capacities.

Mining Operations:

• Handling: Moving mining equipment and extracted materials in environments with dust or potentially explosive gases.
• Features Needed: Dust-tight enclosures, corrosion resistance, and high durability.

Pharmaceutical and Food Processing:

• Handling: Moving materials and equipment in sterile or high hygiene environments.
• Features Needed: Easy-to-clean surfaces, resistant to chemicals, and compliance with hygiene standards.

Compliance with Standards:

• Regulatory Standards: Ensure compliance with industry-specific regulations and standards for hazardous environments (e.g., ATEX, IECEx, NEC).
• Certification: Verify that the crane and its components are certified for use in hazardous areas.

Routine Maintenance:

• Inspection: Regular inspections for wear and tear, corrosion, and compliance with safety standards.
• Maintenance Procedures: Follow strict maintenance procedures to ensure ongoing safety and operational efficiency.

Training and Operation:

• Operator Training: Ensure that operators are trained in handling hazardous materials and operating the crane safely in a hazardous environment.
• Emergency Procedures: Develop and implement emergency procedures for dealing with potential incidents or malfunctions.

Increased Safety:

• Reduced Risk: Minimizes the risk of accidents and incidents in hazardous environments through specialized safety features and design.
• Compliance: Meets stringent safety and regulatory requirements, ensuring safe operation in challenging conditions.

Enhanced Durability:

• Longevity: Extended lifespan of the crane due to robust construction and resistance to environmental factors.
• Reliability: Consistent performance in demanding environments, contributing to operational efficiency.

Operational Efficiency:

• Optimized Handling: Facilitates the handling of hazardous materials and equipment with specialized design features.
• Versatility: Adaptable to various hazardous environments, ensuring effective material handling across different applications.

Specialized semi gantry cranes for hazardous environments are essential for ensuring safety and efficiency in industries dealing with dangerous conditions. By incorporating advanced design features and adhering to strict safety standards, these cranes provide reliable solutions for challenging operational environments.

Semi gantry crane is a good choice to save investment and space, especially when you are in the following conditions:

• Your plant needs an efficient solution to coordinate forklifts to handle heavy or very long loads to improve safety, efficiency and save time.
• Your lifting volume is moderate which does not need to install an expensive and permanent overhead travelling crane system.
• Your plant has existing overhead cranes, but need an economical and versatile lifting system to supplement the existing crane system.

Semi gantry crane has a widely application for various industrial applications, Generally, semi gantry cranes can be used in the following two typical applications:

• Indoors - Semi gantry cranes is used to cooperate with the the existing overhead bridge cranes to provide more hooks and to improve the productivity of your factory.
• Outdoors - The single leg gantry crane is used outside but near the building, , taking advantage of the existing runway structure, to improve the cost efficient of your building.

All in all, Semi Gantry Cranes offers your economical material handling solution with lifting capacity up to 32 ton and crane span up to 32 m, which is an excellent alternative solution to expensive overhead cranes. Single leg semi gantry crane is widely used for material handling in open warehouse,mechanical processing workshop, outdoor places, etc. However, standard semi gantry crane is not allowed to be in hazardous environments, such as, the environment of combustible, explosive, dusty and corrosive, etc.

When considering the purchase of a semi gantry crane, several key factors should be carefully evaluated. Understanding your specific lifting needs and the environment in which the crane will operate is crucial. This includes assessing the types of loads, required capacity, and space constraints. Researching reputable suppliers, comparing quotes, and ensuring the crane meets quality standards are essential steps in making an informed decision. Additionally, considering installation requirements, maintenance practices, and potential common issues will help ensure the crane remains efficient and reliable over its lifespan. Finally, exploring customer testimonials and case studies can provide valuable insights into the real-world benefits and performance of different crane models. If you are considering investing in a semi gantry crane, take the time to thoroughly assess your needs and reach out to suppliers for more detailed information. By understanding your specific requirements and evaluating the options available, you can make a well-informed decision that enhances your operational efficiency and meets your lifting needs. Contacting reputable suppliers to discuss your requirements, request quotes, and explore customization options will help you find the right crane for your application. Taking these steps will ensure that you invest in a crane that delivers optimal performance, reliability, and value for your business.

5 ton semi gantry crane for sale and half gantry crane installation for your reference

Case Study 1: Automotive Parts ManufacturerA leading automotive parts manufacturer integrated a semi gantry crane into their assembly line to handle engine components and packaging materials. Prior to this, manual handling was labor-intensive and time-consuming. After installing a semi gantry crane with a 5-ton single girder design, the company reported a 30% increase in assembly line efficiency. The crane's ability to quickly and safely move parts significantly reduced manual labor and minimized the risk of injury. The increased efficiency also led to faster production cycles and improved overall productivity.

Case Study 2: Steel Production FacilityIn a steel production facility, a double girder semi gantry crane with a 15-ton capacity was installed to manage the movement of large metal coils and fabricated structures. This crane's robust design and high load capacity allowed the facility to handle heavier loads more effectively, leading to improved handling processes and reduced bottlenecks in production. The company noted that the crane's stability and ability to span wider areas were crucial in optimizing their workflow and enhancing their capacity to meet high-demand periods.Case Study 3: Port OperationsA major port installed a semi gantry crane with a 10-ton capacity to handle smaller vessels and light cargo. This crane, equipped for outdoor use, allowed the port to streamline its cargo handling operations and reduce turnaround times. The ability to operate effectively in a space-constrained environment with varying load sizes provided significant benefits. The port reported a noticeable improvement in operational efficiency and a reduction in the time required to load and unload ships.

Common Queries

How long does installation take?

The installation time for a semi gantry crane varies depending on several factors, including the crane's design (single girder vs. double girder), the complexity of the installation site, and the experience of the installation team. On average, installation can take anywhere from a few days to a week. This includes site preparation, assembly, alignment, and initial testing. For a more accurate timeline, it's best to consult with your crane supplier or installation contractor.

What is the typical lifespan of a semi gantry crane?

The lifespan of a semi gantry crane can vary based on usage, maintenance practices, and environmental conditions. Generally, a well-maintained semi gantry crane can last between 10 to 20 years. Regular maintenance and adherence to manufacturer guidelines play a crucial role in extending the crane's operational life. Cranes used in harsh environments or for heavy-duty applications may experience more wear and require more frequent servicing.

What factors affect the load capacity of a semi gantry crane?

The load capacity of a semi gantry crane is influenced by several factors, including the crane's design (single girder vs. double girder), the quality of construction materials, and the crane's structural integrity. For single girder designs, capacities typically range from 1 ton to 10 tons, while double girder designs can handle capacities from 10 tons to over 20 tons. Additionally, the installation environment and load distribution practices can affect the crane's effective load capacity.

Can a semi gantry crane be customized to fit specific needs?

Yes, semi gantry cranes can be customized to meet specific operational needs. Customization options may include adjustments to lifting height, span, load capacity, and control systems. You can also choose from various power supply options and additional features such as remote controls or specialized lifting equipment. Discuss your specific requirements with your crane supplier to explore available customization options.

What maintenance is required for a semi gantry crane?

Routine maintenance for a semi gantry crane includes regular inspections of mechanical and electrical components, lubrication of moving parts, and checking for signs of wear or damage. Essential tasks include inspecting the hoist, trolley, and rail systems, as well as ensuring that safety features are functioning correctly. Establish a maintenance schedule based on the manufacturer's recommendations and the crane's usage to prevent unexpected issues and ensure smooth operation.

Are semi gantry cranes suitable for outdoor use?

Semi gantry cranes can be designed for both indoor and outdoor use. When used outdoors, the crane must be equipped with weather-resistant features and coatings to protect against environmental factors such as moisture, temperature extremes, and corrosive elements. Ensure that the crane is specifically designed for outdoor conditions and discuss any additional requirements with your supplier to ensure its durability and reliability in various environments.

What safety features should I look for in a semi gantry crane?

Important safety features to look for in a semi gantry crane include emergency stop functions, overload protection, anti-collision systems, and proper braking mechanisms. Safety features should also include regular safety inspections and adherence to industry standards and regulations. Ensure that the crane meets all relevant safety certifications and that the safety systems are tested and operational before use.

How can I ensure that my semi gantry crane is compliant with industry standards?

To ensure compliance with industry standards, purchase your crane from a reputable supplier who adheres to relevant safety and quality regulations. Check that the crane meets local and international standards, such as those set by organizations like the American Society of Mechanical Engineers (ASME) or the European Standards (EN). Request documentation and certification from the supplier to verify compliance and ensure that the crane's design and construction meet industry requirements.