Single vs Double Girder Bridge Crane: Which Is Better?

When selecting a bridge crane for your facility, one of the most important decisions is choosing between a single girder and a double girder bridge crane. Both are widely used in industrial applications, but they differ significantly in design, lifting capacity, cost, and installation requirements.

In this guide, Nybon Machinery explains the differences and helps you determine which one suits your project best.

What Is a Single Girder Bridge Crane?

A single girder bridge crane has one main beam (girder) that supports the hoist and trolley. The hoist usually runs on the bottom flange of the beam (under-running or top-running design).

🔧 Key Features:

  • Compact and lightweight

  • Lower cost

  • Easier installation

  • Ideal for low headroom spaces

What Is a Double Girder Bridge Crane?

A double girder bridge crane has two parallel bridge beams. The hoist is mounted on a trolley that runs on rails installed on top of the girders.

🔧 Key Features:

  • Higher lifting capacity

  • Greater lifting height

  • Better hook positioning (closer to end of beam)

  • Supports more complex attachments (e.g. grab buckets, magnets)

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Comparison Table: Single vs Double Girder

Feature Single Girder Bridge Crane Double Girder Bridge Crane
Structure One main beam Two main beams
Hoist Position Under or on top of girder On top of girders
Lifting Capacity Up to 20 tons (standard) Up to 200 tons (standard/customizable)
Span Up to 25m (typical) Up to 40m+
Lifting Height Limited by beam height Higher lifting height possible
Installation Cost Lower Higher due to complexity
Maintenance Easier and less costly Requires more space and components
Applications Light to medium lifting Heavy-duty lifting, long-span applications

When Should You Choose Each?

✅ Choose a Single Girder Bridge Crane If:

  • Your load is under 20 tons

  • You have limited budget

  • The facility has low ceiling height

  • You want simple and quick installation

✅ Choose a Double Girder Bridge Crane If:

  • Your load exceeds 20 tons

  • You need frequent heavy-duty lifting

  • You require high lifting height or longer spans

  • You use special lifting attachments (grabs, magnets)

Nybon Machinery – Your Trusted Crane Supplier

Applications of Each Type

Industry Best Crane Type
Warehouse & Packaging Single Girder
Steel Plant Double Girder
Power Station Double Girder
Machine Workshop Single Girder or Double (depends)
Construction & Assembly Line Single Girder
Heavy Equipment Manufacturing Double Girder

Why Choose Nybon Bridge Cranes?

At Nybon Machinery, we manufacture both single and double girder bridge cranes to meet various industrial needs. With capacities ranging from 1 ton to 200 tons, we offer:

  • Customized design & span

  • CE & ISO certified products

  • OEM support

  • Global delivery & technical support

📧 Email: info@nybonmachinery.com
📱 WhatsApp: +86-15936506686

At Nybon Machinery, we manufacture both single and double girder bridge cranes to meet various industrial needs. With capacities ranging from 1 ton to 200 tons, we offer:

  • Customized design & span

  • CE & ISO certified products

  • OEM support

  • Global delivery & technical support

📧 Email: info@nybonmachinery.com
📱 WhatsApp: +86-15936506686

At Nybon Machinery, we manufacture and export both bridge cranes and gantry cranes with customizable lifting capacities, spans, and duty grades. With a strong focus on international standards and customer-specific solutions, we offer:

  • Load capacity from 1 ton to 200 tons

  • Full technical support and OEM services

  • CE and ISO certified designs

  • Fast global shipping and installation guidance

Frequently Asked Questions (FAQ)

What is the maximum capacity of a single girder crane?

Nybon’s single girder bridge cranes typically support up to 20 tons. For heavier loads, double girder options are recommended.

Which crane is more cost-effective?

Single girder cranes are generally more affordable in both equipment and installation costs.

Can I upgrade from single to double girder later?

It’s not typical to “upgrade” directly—you would need to replace the entire structure due to different configurations.

Do double girder cranes take more space?

Yes, they require more headroom and installation space but provide higher lift and better hook coverage.

At Nybon Machinery, we specialize in custom-engineered gantry crane systems tailored to your operational needs. With years of experience and advanced production capabilities, we ensure quality, safety, and performance in every system we deliver.


Need a Crane System?
Contact us for a free consultation and customized solution.
📧 info@nybonmachinery.com | 📞 WhatsApp: +86-15936506686

As a professional Industrial Crane Supplier, Nybon offers

  • Customizable Solutions – Available in various load capacities, speeds, and configurations to meet specific industrial requirements.
  • High-Quality Manufacturing – Built with strict quality standards to ensure durability, reliability, and long service life.
  • Low Maintenance Requirements – Engineered for minimal maintenance, reducing downtime and operational costs.
  • Gantry Cranes
  • Overhead Cranes
  • Electrci Hoist

Get A Quote Today

Welcome to send a free inquiry to —info@nybonmachinery.com