Bridge Girder Erection Machine (Launching Gantry Crane)
Bridge Girder Erection Machine (Launching Gantry Crane)
Precision Engineering for Modern Bridge Construction – Trusted by Global Infrastructure Leaders
The Bridge Girder Erection Machine, also known as a Launching Gantry Crane, is a critical piece of equipment in segmental bridge construction. Designed to lift, align, and place precast bridge girders or segments with precision, it plays a vital role in ensuring project speed, safety, and structural accuracy.
At Henan Mine, we combine robust engineering, customizable configurations, and field-proven experience to deliver high-performance launching gantries for high-speed rail, highway overpasses, metro viaducts, and long-span bridge projects. Our bridge launchers are used by top infrastructure contractors in Asia, the Middle East, Europe, and Latin America.
| Parameter | Typical Range |
| Lifting Capacity | 100 – 900 tons (customized) |
| Max Span | Up to 60 meters |
| Girder Type Compatibility | T-beam, I-beam, U-girder, box girder |
| Segmental Option | Yes (match-cast & cantilever method) |
| Travel Mechanism | Rail-mounted / Tyre-mounted |
| Control Mode | Cabin + Remote + Auto options |
| Applicable Standards | GB, EN, AASHTO, ISO, CE, ASME |
| Type | Structure | Bridge Type | Span Range | Lifting Capacity | Advantages | Limitations |
| Single-Girder Launching Gantry | One main girder | Short to medium girder bridges | ≤ 30m | ≤ 200 tons | Lower cost, simple setup, suitable for light-duty jobs | Limited capacity and stability |
| Double-Girder Launching Gantry | Two main girders | Highway, HSR, urban viaducts | 20m – 60m | Up to 900 tons | High strength, widely applicable, supports heavy loads | Requires more assembly space and time |
| Segmental Launching Gantry | Multiple articulated girders | Long-span, curved, elevated bridges | 30m – 55m | 100 – 500 tons | Precision placement, match-cast friendly, good for cantilever methods | Higher technical complexity, costlier |
| Beam Launcher | Box or truss-type | Straight-span bridges | ≤ 40m | 200 – 600 tons | Efficient for placing precast beams quickly | Not suitable for curved or segmented bridges |
| Movable Scaffolding System (MSS) | In-situ cast support | High-speed rail, urban viaducts | 20m – 50m | N/A (in-situ cast) | No need for heavy lifting, continuous casting supported | Limited reuse, longer cycle time |
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