Double vs Single Girder Gantry Crane: What’s Best for 20 T Load?

20 Ton Gantry Crane

A 20 Ton gantry crane is a type of overhead crane designed to lift and move heavy loads up to 20 tons. These cranes are often used in industries where large, heavy materials need to be transported or positioned.

They're typically used in:

• Construction sites
• Manufacturing plants
• Steel mills
• Heavy equipment yards

In simple terms, these cranes help you lift large, bulky items with ease and precision.

Why Choosing the Right 20 Ton Gantry Crane Matters

When it comes to lifting 20 tons, not all gantry cranes are the same. Choosing the right crane is crucial because it directly impacts your operations, safety, and overall costs.

Consider these key points:

• Efficiency: The right crane can help you get jobs done faster, saving time and money.
• Safety: Using a crane that fits your needs ensures a safe working environment for your team.
• Cost-Effectiveness: A good choice prevents unnecessary maintenance and repair costs in the long run.

Single Girder vs. Double Girder 20 Ton Gantry Cranes

When you're looking at 20 Ton gantry cranes for sale, you'll often find two main types: single girder and double girder. Both have their pros and cons, depending on what you're looking for.

• Single Girder 20 Ton Gantry Crane: This is the more budget-friendly option. It's simpler in design and works well for moderate lifting tasks.
• Double Girder 20 Ton Gantry Crane: If you need something that can handle continuous, heavy-duty work with high lifting speeds, the double girder crane is your best bet. It's more robust and ideal for demanding environments.

Both types are available for sale, and the right choice depends on your specific lifting needs, space availability, and budget.

Overview of 20 Ton Gantry Cranes

What is a 20 Ton Gantry Crane?

A 20 Ton gantry crane is an overhead crane system designed to lift heavy loads of up to 20 tons. It consists of a horizontal beam supported by two legs that run on tracks, giving it the ability to move loads across a wide area. These cranes are often used to handle materials or equipment that are too large or heavy for regular lifting tools.

They can either be single girder or double girder systems, but both are designed to move and lift heavy loads with precision and safety.

General Applications of 20 Ton Gantry Cranes

• Heavy Lifting: 20 Ton gantry cranes are ideal for tasks that involve lifting and transporting heavy equipment, steel, machinery, and construction materials.
• Material Handling: In industrial settings, these cranes are used to move raw materials like metal sheets, pipes, and heavy machinery from one part of a factory or site to another.
• Outdoor Use: Many gantry cranes are designed for outdoor use in areas where other cranes can't operate, like construction sites or shipyards.

Key Industries and Environments Where 20 Ton Gantry Cranes are Commonly Used

• Construction: On construction sites, especially in large-scale projects like bridges, buildings, and highways, 20 Ton gantry cranes are essential for moving heavy construction materials, including concrete, beams, and machinery.
• Manufacturing: Factories and workshops that produce large components, such as metal parts, equipment, or machinery, use these cranes to move materials efficiently around the production floor.
• Steel Mills: In steel mills, these cranes help move steel billets, slabs, and other heavy metal products during the manufacturing process.
• Shipyards: In shipbuilding, gantry cranes are used to transport large hull sections, equipment, and parts, playing a key role in assembling large vessels.
• Rail Yards and Ports: For loading and unloading heavy containers and machinery, these cranes offer an efficient and reliable solution.

In short, a 20 Ton gantry crane is a versatile piece of equipment widely used in industries that require heavy-duty lifting and material handling. Whether you're lifting steel beams in a manufacturing plant or large equipment on a construction site, these cranes get the job done safely and efficiently.

20 ton gantry crane single girder for your reference , indoor gantry crane 20 tons 

Single Girder 20 Ton Gantry Crane

Structure and Features

A single girder 20 Ton gantry crane features a straightforward design with one main beam (the girder) supported by two legs that move on tracks. The single girder makes it a lighter and simpler crane compared to the double girder option.

• Simplified Structure: With just one beam instead of two, this design is less complex and cost-effective.
• Moderate Lifting Needs: While it's designed for lifting up to 20 tons, it works best in environments where lifting is moderate and not continuous or extreme.

This crane's simple design makes it perfect for operations where lifting tasks are less demanding but still require a reliable solution for heavy loads.

Benefits of a Single Girder 20 Ton Gantry Crane

• Cost-Effective: One of the biggest advantages is the lower initial purchase cost. Because the structure is simpler, it's more affordable than double girder cranes. This makes it an ideal option for those on a tighter budget.
• Compact Design: A single girder crane takes up less space and is lighter, making it perfect for environments where ceiling height or floor space is limited. If you have a small workshop or a compact production area, this crane fits in easily without taking up too much room.
• Simplicity in Maintenance: With fewer components and a simpler design, maintaining a single girder crane is easier and cheaper. Fewer parts mean less risk of wear and tear, reducing maintenance costs over time.

Applications for Sale

A single girder 20 Ton gantry crane is ideal for industries with lighter, less frequent lifting needs. While it can handle 20 Ton loads, it's best suited for environments where heavy lifting doesn't occur constantly.

• Manufacturing plants with occasional heavy material handling.
• Construction sites that require lifting heavy but less frequent loads, like beams or large equipment.
• Small workshops where space and budget are limited but 20 Ton lifting capacity is still needed.

In summary, a single girder 20 Ton gantry crane offers a budget-friendly and efficient solution for moderate lifting applications. It's perfect for industries looking for reliable performance without the extra cost of more complex systems.

double girder gantry crane 20 ton for outdoor use with cantilever design for concrete precasting components handling, outdoor gantry crane 20 ton for sale 

Double Girder 20 Ton Gantry Crane

Structure and Features

A double girder 20 Ton gantry crane features two parallel beams (the girders) that run across the width of the crane. These two girders provide extra stability and strength, making this crane ideal for lifting heavy loads with precision.

• Double Girder Design: The two girders work together to support the weight of the crane and its load, providing superior balance and lifting capacity.
• Enhanced Stability: With two girders, this crane can handle more demanding lifting tasks with ease, especially in environments where safety and efficiency are crucial.
• High-Duty Capability: The double girder design is perfect for operations requiring continuous, high-performance lifting.

Benefits of a Double Girder 20 Ton Gantry Crane

• Heavy-Duty Performance: The double girder design makes the crane more robust and stable. It's perfect for industries where heavy-duty operations are common, such as high-volume manufacturing or large-scale construction projects.
• Higher Lifting Speed and Clearance: Double girder cranes can offer faster lifting speeds and more vertical clearance compared to single girder models. This is particularly useful in fast-paced environments where time is of the essence, and you need to move large loads quickly and efficiently.
• Better for Harsh Environments: This type of crane is well-suited for tough conditions. Whether you're dealing with constant heavy lifting, high-frequency use, or extreme weather, the double girder crane can handle it. It's a reliable workhorse in environments where the workload is demanding and the crane is used heavily.

Applications for Sale

A double girder 20 Ton gantry crane is ideal for industries where lifting needs are intense and continuous. It's the go-to choice for operations that require both speed and reliability for 20 Ton loads.

• Manufacturing plants with continuous production lines that need high lifting speeds and efficiency.
• Heavy lifting projects in construction, such as moving steel beams, concrete structures, or large machinery.
• Large-scale construction sites where frequent lifting and heavy-duty performance are necessary to keep up with demanding schedules.

In conclusion, a double girder 20 Ton gantry crane is designed for industries with more intense, high-demand lifting needs. It provides faster lifting, better clearance, and can withstand harsh, heavy-duty environments, making it the ideal choice for high-volume, high-performance operations.

Cost Comparison: Single Girder 20 Ton vs. Double Girder 20 Ton Gantry Cranes for Sale

Initial Cost

• Single Girder 20 Ton Gantry Crane: The single girder crane is the more budget-friendly option. Its simple design with one main girder makes it less expensive to manufacture and purchase. If you're working with a limited budget or have fewer lifting requirements, this crane will be the more cost-effective choice.
• Double Girder 20 Ton Gantry Crane: On the other hand, the double girder crane comes with a higher initial cost. This is due to its more complex design, which includes two parallel girders for increased stability and load capacity. While the price is higher, you're investing in a more durable crane suited for demanding environments.

Operating and Maintenance Costs

• Single Girder: One of the main benefits of the single girder crane is its lower maintenance and operating costs. With fewer components and a simpler design, there's less that can go wrong, leading to lower repair costs and less frequent servicing. This makes it ideal for less frequent lifting tasks where the crane isn't under constant strain.
• Double Girder: The operating and maintenance costs of a double girder crane are higher due to its more complex structure and additional parts. However, it's designed for high-usage environments, so while the maintenance costs may be higher, they're often justified by the crane's ability to handle frequent and demanding lifting tasks without compromising performance. If you're working in an environment where the crane is in constant use, the extra cost may be worth the added reliability and performance.

In summary, while the single girder 20 Ton gantry crane offers a lower initial purchase price and more affordable maintenance, the double girder 20 Ton gantry crane comes with a higher price tag but is better suited for environments with constant, heavy lifting needs where performance and durability are key.

Lifting Speed and Efficiency

Single Girder 20 Ton Gantry Crane

• Slower Lifting Speeds: The single girder crane typically offers slower lifting speeds, making it more suitable for tasks where speed isn't the main concern. It's perfect for operations where the focus is more on the lifting capacity than on how fast the load needs to be moved.
• Efficiency in Smaller Operations: In smaller operations or less busy environments, the slower lifting speed is not a drawback. The crane's design ensures it handles tasks efficiently without the need for high-speed lifting. It works well for industries with moderate lifting needs where maximum speed is not the priority.

Double Girder 20 Ton Gantry Crane

• Faster Lifting Speeds: The double girder crane is built for higher lifting speeds, making it ideal for applications that need to move materials quickly. If you're working in a high-speed production line or a busy construction site, this crane can significantly improve your workflow by reducing wait times.
• Efficiency for High-Demand Environments: Double girder cranes are designed for continuous lifting cycles. In environments where the crane is used regularly or for long hours, the faster lifting speed and higher efficiency make it the better choice. It handles heavy loads at a quicker pace without compromising performance, making it the go-to crane for operations with high throughput.

In summary, the single girder 20 Ton gantry crane is best suited for less demanding tasks with slower lifting speeds, while the double girder 20 Ton gantry crane excels in fast-paced environments where high-speed lifting and continuous operation are essential.

Which 20 Ton Gantry Crane is Best for You?

Single Girder 20 Ton Gantry Crane

• Best for Budget-Friendly Buyers: If you're looking for a cost-effective option that still delivers reliable performance for lifting moderate loads, the single girder 20 Ton gantry crane is a great choice. It's affordable and gets the job done without unnecessary extras.
• Great for Small Spaces: This crane is perfect for smaller workshops or areas with limited space. It's also ideal if you don't need to lift heavy loads all the time, as it's designed for less frequent lifting.

Double Girder 20 Ton Gantry Crane

• Best for High-Demand Jobs: If you need a crane that lifts faster, offers more clearance, and can handle heavier, more demanding jobs, the double girder 20 Ton gantry crane is your best option. It's built to last and work in tough environments where efficiency and performance matter most.
• Perfect for Busy Industries: If you're in an industry that needs to lift heavy loads frequently, like manufacturing or large-scale construction, the double girder 20 Ton gantry crane will keep things running smoothly, providing fast, efficient lifting.

In short, if you're on a budget or don't need constant heavy lifting, the single girder 20 Ton gantry crane is the way to go. For industries with heavy, frequent lifting needs, the double girder 20 Ton gantry crane will give you the power and performance you need.

 2 sets of 20 ton gantry cranes for tandem lifting in precasting yards 

Conclusion: Choosing Between Single Girder vs. Double Girder 20 Ton Gantry Cranes for Sale

Final Recommendation:

• Single Girder 20 Ton Gantry Crane: If you're looking for a budget-friendly option and need a crane that works well in smaller spaces with moderate lifting tasks, then the single girder crane is the best choice. It's perfect for businesses that don't need heavy lifting all the time and are looking to save on initial costs.
• Double Girder 20 Ton Gantry Crane: On the other hand, if your industry demands high efficiency, fast lifting speeds, and heavy-duty performance, the double girder crane is the better option. It's built for continuous, high-intensity use and is ideal for industries with frequent lifting needs and a need for reliability and durability.

Things to Consider Before You Buy:

Before making your purchase, take some time to think about:

• How often you'll be using the crane (high or low frequency?)
• The amount of available space in your workspace (is it a tight area or more open?)
• Your budget (how much can you spend on the crane, both upfront and for maintenance?)

By carefully considering these factors, you can make a smarter, more informed decision about which 20 Ton gantry crane best fits your needs.

Article by Bella ，who has been in the hoist and crane field since 2016. Bella provides overhead crane & gantry crane consultation services for clients who need a customized overhead travelling crane solution.Contact her to get free consultation.