What is this equipment?

[trainman1980]

http://carnellm.posterous.com/charleston-railroad-pictures

 

[jbaakko]

Rail grinder.

 

[jtudor]

Here's a link to the manufacturer:

http://www.harscorail.com/

 

[Trouble]

first time i saw one at night, scared the crap outta me. came around a curve, expected those little cranes and stuff, and something is throwing sparks like crazy! there's another one that i always wanted to model, uses i think an old F40 for power. pretty impressive machinery

 

[Rico]

Night grinds can be quite spectacular.
Here's one shot taken while following RG 310 thru the Fraser Canyon in BC in a highrail. (crappy I know)