Switch Rail Height Gauge is mainly used to measure the descent height value of the switch
rail relative to the basic rail and point rail relative to the wing rail . This instrument has the
features of high measuring precision, convenient calibration, simple structure, light weight
and easy to carry. Reasonable switch rail height can not only ensure train running safely
and smoothly, but also reduce the interaction between wheel and rail effectively,reduce the
dynamic stress of track structure, keep the track in good geometric state, thus reduce the
maintenance workload.