50kg rail base plate

50Kg railway tie plate

A tie plate, baseplate or sole plate is a steel plate used on rail tracks between flanged
T rail and the crossties. The tie plate increases bearing area and hold the rail to correct
gauge. They are fastened to wooden ties by means of spikes or bolts through holes in
the plate.

The part of the plate under the rail base is tapered, setting the cant of the rial, an inward
rotation from the vertical. The top surfact of the plate has one or two shoulder that fit against
the edges of the base of the rail. The double-shoulder type is currently used. Older single-
shoulder types were adaptable for various rail widths, with the single shoulder positioned on
the outside of the rails. Most plates are slightly wider on the filed side, without which the plates
tend to cut more into the outsides of the tie, reducing cant angle.
50kg rail base plate