This equipment is used on the standard track with the track gauge 1,435mm. It is mainly used in the project lines with the standard track gauge in combination with the 180t bridge girder erection machine in China. It has the function of transporting the railway concrete beams of general bridge type 2201, dedicated bridge type 2101 and below, and meeting the requirements of 180t bridge girder erection machines in various types for girder feeding.