I remember reading somewhere that PJ Railgrinding has a new name, but I can not recall what their name is know, and also…
…How many Railgrinding trains does PJ have, I know they have atleast 5.
It is now Harsco Track Technologies-
http://www.harscotrack.com/
http://www.rrpicturearchives.net/srchThumbs.aspx?srch=harsco&search=Search