Double Girder Overhead Crane Systems for Heavy Duty Lifting

A double girder overhead crane is the choice for plants once loads, spans or duty cycles get too big for a single girder to handle well. It uses two girders instead of one, with the trolley riding on top between them rather than hanging underneath. This gives it more lifting capacity, up to 500 tons, and more lifting height than a single girder crane can reach. Nybon Machinery builds these as standard QD models, lighter European-type units, foundry cranes and explosion-proof versions, so you get a crane built for your actual site, not just a number on a spec sheet.

What Makes a Double Girder Bridge Crane Different?

The extra girder is not just added steel. Placing the trolley on top of two girders instead of hanging it from one gives the crane more headroom to work with, more structural rigidity under heavy or off center loads, and room to add features like dual hoists or cabin control that a single-girder crane cannot support as easily. It’s the reason double girder bridge cranes are the standard choice in steel mills, power stations, and any facility running continuous, heavy-duty shifts rather than occasional lifts.

That said, the extra structure adds cost and headroom requirements, so it only makes sense once your load, span or duty class actually calls for it. Our team will tell you directly if a single girder overhead crane covers your job just as well for less.

Key Features:

Double Girder Overhead Crane Technical Specifications

Below is the standard technical parameter table for our double girder overhead crane. All specifications can be fully customized to meet your specific industrial requirements, including load capacity, span, lifting height, power supply, control system, and special features. Contact our team to discuss your needs and receive a tailored solution.

Parameter	Standard Specification	Customizable Range
Load Capacity	5-80 Ton	5-500 Ton
Span	10.5-31.5 Meters	8-50 Meters
Lifting Height	6-18 Meters	5-40 Meters
Lifting Speed (Main Hoist)	1-8 m/min	0.5-10 m/min (Variable Speed Optional)
Lifting Speed (Auxiliary Hoist)	3-12 m/min	2-15 m/min (Variable Speed Optional)
Travelling Speed	10-30 m/min	8-40 m/min (VFD-Controlled Optional)
Working Class	A5-A7 (FEM/ISO Standard)	A5-A8
Power Supply	380V/50Hz/3Phase	220V-480V, 50/60Hz (Regional Standards)
Control System	Cabin Control / Wireless Remote Control	PLC Automation / Dual Control (Optional)
Operating Environment	-20°C to +60°C, IP55 Protection	High Temperature / Anti-Corrosion (Custom)

Where These Cranes Get Used

Double girder overhead cranes handle the heavy end of industrial lifting: steel production, large machinery manufacturing, mining and heavy workshop operations, power and hydropower plants, chemical and energy facilities, equipment assembly lines, and container or bulk material transfer stations. If your operation runs continuous shifts, moves loads at or near single girder limits, or handles hazardous materials, this is generally the structure to plan around.

Steel Mills & Metallurgical Plants

Heavy Fabrication Plants

Foundries & Forges

Automotive & Aerospace Manufacturing

Related Products

Single Girder Overhead

Industrial Overhead Crane

Why Manufacturers Choose Nybon Machinery?

We design and build double-girder overhead cranes rather than reselling a fixed catalog, which means capacity, span, lifting height, duty class and control system are all set around your actual site conditions. Every crane goes through strict production quality control, and our engineering team supports the full selection and design process before anything ships. Combined with fast delivery and long-term after-sales support, that’s why plants come back to us for repeat orders rather than shopping around each time.

Our Certifications

We comply with international quality and safety standards. Here are the Certifications

CE-INDUSTRIAL WIRELESS REMOTE CONTROLLER(1)_page-0001

Our Products

Since its inception, Nybon Machinery has focused on the manufacturing of heavy lifting equipment.
Our main products include bridge cranes, gantry cranes, rubber tyred gantry cranes, rail-mounted container gantry cranes, straddle carriers, transporters, as well as casting cranes, hoists and beam launching machines.
We stand out with our strong design and customization capability, offering tailored solutions to meet customers’ unique needs.

Common Questions

Frequently Asked Questions About Double Girder Overhead Crane

Customization Service

At Nybon Machinery, we recognize that every heavy-duty lifting project has unique requirements. That’s why we offer fully customizable double girder gantry crane solutions to fit your specific needs. Our team of experienced engineers will work closely with you to tailor every aspect of the crane, including load capacity, span, lifting height, control system, structural design (such as cantilever length, leg type, and track configuration), and special features. Whether you need a crane for high-temperature steel mill operations, corrosive port environments, or precision heavy lifting, we can design a solution that meets your exact specifications. Optional features include anti-sway systems, laser-guided positioning, remote monitoring, and special coatings for harsh conditions. Contact us today to discuss your customization needs and get a free design proposal.

What is a double girder overhead crane used for?

A double-girder overhead crane is used for heavy duty lifting in steel mills, power plants, mining operations, and large manufacturing facilities. It handles higher capacities and longer spans than a single-girder crane because the trolley runs on top of two girders instead of hanging below one.

What is the maximum capacity of a double girder overhead crane?

Nybon Machinery builds double girder overhead cranes up to 500 tons, with spans up to 40 meters and lifting heights up to 40 meters. Exact limits depend on duty class, span and site conditions, so capacity is confirmed during the proposal stage.

What is the difference between a double girder bridge crane and a single girder crane?

A double girder bridge crane uses two girders with the trolley on top, giving it higher capacity, more lifting height and better stability under heavy or off center loads. A single girder crane is lighter and more cost effective but is generally limited to lighter to medium duty work.

What is the difference between QD type and European type double girder cranes?

QD type is the standard heavy-duty model, built for cost-effective, dependable lifting in steel mills and workshops. European type is lighter and more compact, using a frequency inverter for smoother operation and reduced building height requirements.

Can a double girder overhead crane be customized?

Yes. Span, lifting height, working class, control mode and hoist type can all be customized to match your building and application, including explosion-proof and high-temperature versions for hazardous or foundry environments.

Does Nybon Machinery provide installation support for double girder cranes?

Yes. Nybon Machinery provides on-site installation guidance, remote technical assistance and full documentation for double-girder overhead crane orders, along with after-sales support once the crane is running.

Contact a customize Double Girder Bridge Crane

Tell us your requirements and our engineering team will provide a tailored lifting solution with competitive pricing within 24 hours.

From design to delivery, we ensure reliable, efficient, and cost-effective crane systems for your business needs. Whether you need a gantry crane, overhead crane, or complete lifting solution we are here to help.