Rail car mover
From Wikipedia, the free encyclopedia
A rail car mover is a vehicle capable of travelling on both roads and rail tracks, and fitted with couplers for moving small numbers of railroad cars around in a rail siding or small yard. They are extensively used by railroad customers because they are cheaper than owning a switcher locomotive, more convenient and cheaper than paying the railroad operator to do the switching, easier and more productive than manual moving of cars, and in addition they are more versatile since they can travel on road wheels to the cars they need to move, instead of needing clear track.
Some have two drive systems and drive only on steel wheels on the rail, with their rubber tires lifted out of the way, while others have only one drive system and use steel rail wheels only to guide them and use their rubber tires on the rail, in a similar fashion to HiRail trucks. The vehicles with only one driving system require extreme caution when driving on rail.
Rail car movers are fairly lightweight, so in order to gain more traction they transfer weight from the car they are hauling onto their own wheels.
In Europe, trucks fitted with railway wheels and coupling rods are used as rail car movers (often called towing or shunting vehicles).
Numerous manufacturers produce rail car movers. Perhaps the best known, and one of the earliest, is Trackmobile, whose name is sometimes used inaccurately as a generic term for these vehicles. Other well-known rail car mover brands include Rail King and Shuttlewagon. German brands are Unimog and Zweiweg
