Basic definition and use:
Segmental Girder launcher (launching gantry) is a special gantry crane used in bridge construction, The principle of the segmental prefabricated assembly construction technology is to divide the bridge superstructure into a number of standard segments. After matching the prefabrication at the prefabrication site, special assembly equipment such as a LG is used on site to build the bridge substructure in sequence. The segments are assembled and prestressed at the same time to make it an integral structure, which is advanced and assembled span by span along the predetermined installation direction.

Applicable bridge types:
Continuous beam bridge, rigid frame bridge, cable-stayed bridge (main beam segment).
Especially suitable for bridges with large spans (more than 40~100 meters) and complex terrain (such as crossing rivers and roads).

Differences from other bridge erection machines

Comparison item	LG segment assembly bridge erection machine	Traditional bridge erection machine (whole span erection)
Construction object	Small prefabricated segment	Whole span prefabricated beam (such as 30m box beam)
Applicable span	Large span (flexible segmentation)	Small and medium span (standard span)
Precision requirement	Extremely high (millimeter-level splicing)	Relatively low (centimeter-level support positioning)
Terrain adaptability	Strong (no need for large beam transport channel)	Depends on flat transportation route

1. How to choose the right crane?
Factors to consider when choosing a crane include: load capacity, lifting height, working environment, frequency of operation.

2. Do your cranes comply with international safety standards?
Of course. Our cranes are manufactured to meet major international standards such as ISO, EN and GB/T. In addition, we ensure that each crane undergoes rigorous testing and inspection before delivery.

3. What maintenance services do you provide?
We offer a comprehensive maintenance program, including preventive maintenance, inspection, repair and spare parts replacement to ensure your crane operates efficiently and safely. Our service team can provide regular and emergency support

4. What is your delivery and installation schedule?
The delivery and installation schedule varies depending on the type of crane and customization requirements. Typically, standard cranes can be delivered within 6-8 weeks, while customized solutions may take more time.

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Bridge Erecting Machine2