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View Full Version : OT: The Loram Railway grinder, seen at night



Elninio
04-05-2013, 04:28 PM
http://www.youtube.com/watch?v=9pSL0H5KvU4
http://farm9.staticflickr.com/8044/8411983473_f0c2ff5424_z.jpg
http://i.imgur.com/iYcM3pb.png

coalsmok
04-05-2013, 10:28 PM
I used to work on those. It was quite the lightshow at night. Hard, dirty, and demanding job.

IanPendle
04-06-2013, 03:01 AM
I used to work on those. It was quite the lightshow at night. Hard, dirty, and demanding job.

Coalsmoke,

Do these things ever set fire to the trackside vegetation? - there's a hell of a lot of sparks flying there.

Ian.

coalsmok
04-06-2013, 08:20 AM
Sometimes they do. They have several tank cars of water in the consist for that.

sasquatch
04-06-2013, 09:24 AM
I only saw that grinder up here once working at night, and it is quite a site to see.

Anyone know anything about the grinding wheels, or how long they last etc.

Mike Amick
04-06-2013, 01:22 PM
Used to go by these things all the time. Mostly at night because the rails were always too busy
during the day to give up the track. Couldn't help notice that everyone that worked them
(that I could see) was totally covered in black crud. Realllllly dirty job. But definitely spectacular
at night.

MaxHeadRoom
04-06-2013, 01:34 PM
Another couple of impressive rail operation sights.
Rail butt welder.
In floor CNC truing lathe for locomotives wheels, the Loco drives over the lathe which then comes up out of the floor, turns the wheel set as it re-profiles it after taking a dia and low point measurement.
Max.

Jaakko Fagerlund
04-06-2013, 02:14 PM
In Germany, everything goes fast: http://en.wikipedia.org/wiki/High_Speed_Grinding

Had never ever heard or seen this railway grinding thing, let alone milling it or profiling the locomoive wheels while mounted, but have seen some other night time ops done on the railways in Finland. Probably should ask my grandad, he worked his whole life on the train yards.

MaxHeadRoom
04-06-2013, 02:23 PM
Very important to maintain track and wheel profile to reduce wear and correct riding on the rail.
http://www.scaleseven.org.uk/About_S7/Standards/S7wheel-rail.html
The wheels themselves are bored to match the axle and are press fit on to conform to a certain press-on tonnage/pressure.
Max.