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900 Ton Railway Girder Transporting and Launching Gantry

The 900 ton railway girder transporting and launching gantry adopts the three-in-one design of girder lifting, transport and erection. It is used for the transport and erection of prestressed reinforced concrete box girder with span of 32m, 24m or 20m in the construction of high-speed railways and passenger dedicated lines. If necessary, our product can also be used to erect non-standard girders with span between 20 to 32 meters.

This railway girder transporting and launching gantry can transport box girder through the tunnels with speed of 250km/h or 350km/h. It can erect girder at the entrance or exit of the tunnel or even inside the tunnel, and the erection operation methods and procedures are the same with that in areas without tunnels. It can transport and erect girders on pavement, subgrade, and box girder which has been erected. It causes no harm to the above facilities. In addition, this equipment can erect girder in either side of the beam field at any time without transition.

Compared with existing bridge girder movable scaffolding system, this railway girder transporting and launching gantry can erect girders successfully with no need of guide beam or any auxiliary tools. It is simple in modeling and light in weight. Operation is simple and efficient. No anchoring is needed. Span-change operation of the whole equipment is convenient. Additionally, this equipment has strong adaptability to the operating environment.

Technical Parameters
Rated lifting capacity 900t
Adapted span 32m, 24m, 20m
Total weight About 560t
Dimensions (L×W×H) 92m×7.1m×9m
Internal clear width 3.3m
Min. curve radius for girder erection 2000m
Working level of the whole machine A3
Working level of each mechanism M4
Lifting speed of lifting beam 0.5m/min
Max. lifting height 4.45m
No-load operation speed of the large car 10km/h
Heavy-load operation speed of the large car 4km/h
Max. wheel pressure of the large car tire 22t
Max. allowable operating longitudinal slope 3%
Total power 900kW

Related Names
Rail Precast Beam Equipment | Train Bridge Engineering | High Speed Rail Construction Machinery

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