Bridge girder erection machine is a device that places the prefabricated beams on the prefabricated piers. Bridge girder erection machine  belongs to the category of crane, because its  main function is to lift the beam, and then transport  it to the designated location and put it down. But it is  quite different from cranes in general sense. The requirements are strict, and there is a row on the beam,or  it is  called longitudinal  displacement. Bridge  girder  erection  machines are  divided  into

highway bridges, conventional railway bridges, passenger dedicated railway bridges and so on. The bridge girder erection machine produced by HuangHe FangBao Company  can not only carry out standard erection  work, but also meet  the equirements of first  and last span erection,  curve erection, variable span erection, span continuous beam, combined beam, continuous steel structure,etc. The bridge girder erection machine has  the advantages of simple erection, fixed point lifting,good stability  of beam body lifting,  high operation  efficiency, safety and reliability,  convenientad justment of variable span, and convenient operation, etc.  In addition, the bridge girder erectionmachine is  composed  of main  girder, crane,  front supporting  leg,  rear supporting  leg, middle bracket,  front supporting  leg  cylinder, rear  supporting  leg cylinder  and  transverse connection frame of  front, middle and  rear end of  main girder.  The control part  is composed of hydraulic 

system and electronic control system.

The company  produces a new  step type of  two-way bridge girder  erection machine, which  canreverse erect  beams without  turning the  head  when erecting  beams, and  does not  need to  layspecial  tracks when  passing through  holes.  The bridge  girder  erection machine  can  meet therequirements of  large slope,  small  radius curved  bridge, skew  bridge and  tunnel portal  bridge erection. The bridge girder erection  machine can carry side beams in  place at one time, which is safe, reliable, simple  and fast. The pin and  flange are used to  connect the main girder and  main connecting structures  to facilitate transportation, installation  and disassembly. The  bridge girder erection machine is a  kind of lifting and erecting equipment  for rail prefabricated beams of steel structure  with  wide  operation  scope,  excellent  performance,  convenient  operation   and  safe structure. It is suitable for working in the environment of -20 ~ 40℃, non-corrosive medium.

The structure of the bridge girder erection machine can be divided into main girder, lifting trolley,front  supporting  leg,  middle  supporting  leg,  walking  track,  flat  transporting  girder  vehicle,hydraulic and electrical parts, forming a complete  structure system. Its main girder is a triangu lartruss structure,  which  is welded  by shape  steel and  steel plate.  It has  the  advantages of  light structure, good rigidity, strong stability, strong anti-wind capability and beautiful appearance.