Double Girder Bridge Cranes: Top Running vs. Underhung

Introduction

Double girder bridge cranes are essential for heavy-duty material handling in industries such as manufacturing, steel production, and logistics. These cranes offer superior strength, stability, and lifting capacity compared to single girder models. At Dongqi Crane, we specialize in manufacturing high-quality top running double girder bridge cranes and underhung double girder bridge cranes, designed to meet diverse industrial needs.

This guide explores the differences, advantages, and applications of these two types of double girder cranes, helping you choose the best solution for your operations.

What is a Double Girder Bridge Crane?

A double girder bridge crane consists of two parallel girders supporting a trolley and hoist, providing increased load capacity and stability. These cranes are ideal for heavy-duty lifting applications where high efficiency and durability are required.

Key Features:

• Higher Load Capacity (up to 550 tons or more)
• Longer Span Capabilities (up to 35+ meters)
• Enhanced Stability & Durability
• Customizable for Specialized Applications

1. Top Running Double Girder Bridge Crane

Design & Functionality

• The crane runs on rails mounted on top of the runway beams, allowing for maximum hook height and lifting capacity.
• Suitable for heavy-duty industrial environments where high lifting heights and large spans are required.

Advantages

✔ Higher Hook Height – Ideal for facilities with vertical space constraints.
✔ Greater Load Capacity – Can handle up to 550+ tons, making it perfect for steel mills, shipyards, and heavy machinery industries.
✔ Longer Spans – Supports wide work areas (up to 35+ meters) without needing additional support.
✔ Durable Construction – Built with reinforced steel for long-term reliability.

Applications

• Steel & Metal Processing (handling coils, beams, and plates)
• Power Plants (lifting turbines and generators)
• Shipbuilding & Ports (moving heavy ship components)
• Automotive & Aerospace (positioning large machinery)

2. Underhung Double Girder Bridge Crane

Design & Functionality

• The crane suspends from the ceiling or overhead runway beams, making it ideal for facilities with limited headroom.
• Operates on lower-profile tracks, maximizing usable floor space.

Advantages

✔ Space-Saving Design – Perfect for low-clearance buildings where headroom is limited.
✔ Smooth & Quiet Operation – Ideal for precision lifting in workshops, warehouses, and assembly lines.
✔ Lower Cost of Installation – Requires less structural reinforcement compared to top-running cranes.
✔ Flexible Configurations – Can be integrated with monorail systems for multi-directional movement.

Applications

• Warehousing & Logistics (handling pallets and containers)
• Paper & Printing Industry (moving large paper rolls)
• Food & Beverage Processing (lifting bulk materials)
• Automotive Assembly Lines (positioning heavy components)

Comparison: Top Running vs. Underhung Double Girder Cranes

Why Choose Dongqi Crane’s Double Girder Bridge Cranes?

✅ Customized Solutions – We design cranes tailored to your facility’s needs.
✅ High-Quality Materials – Built with durable steel and premium components for long-term reliability.
✅ Advanced Safety Features – Equipped with overload protection, limit switches, and emergency brakes.
✅ Global Certifications – Compliant with ISO, CE, and OSHA standards.
✅ After-Sales Support – Comprehensive maintenance, spare parts, and technical assistance.

Conclusion

Whether you need a top running double girder bridge crane for heavy industrial lifting or an underhung double girder bridge crane for space-constrained environments, Dongqi Crane provides high-performance solutions tailored to your needs.

📞 Contact us today for a free consultation and quote! Let our experts help you select the perfect crane for your operations.

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By choosing Dongqi Crane, you invest in quality, safety, and efficiency for your material handling needs. 🚀