... 4. Honeycomb girder 1. Main technical parameters of bridge girder launcher itemspecificationSpan(m)50Rated lifting capacity(t)150total ... , fixing device, rail clamping device, hydro-cylinder and pin shaft.Middle support: as a rear-end support when bridge girder launcher ... , half curved beam, driving gearbox, driven gearbox, fixing device, transverse sliding rail and pin shaft.Rear support is located ...