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DERAILERS – ALDON
DERAILERS

DERAILERS (MADE IN USA)

Derails are emergency stopping devices for rail cars and locomotives. OsHA, FRA, and
DOT regulations require derail protection for all active rail sidings
LOCOMOTIVES & RAIL CAR STOPPING DEVICES

How Derails Work Derails help prevent:
The derail lifts the flange of the car wheel and drops it clear
of the rail. At the same time the wheel on the other rail
falls down between the rails. The derailed wheels bite into
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the soft surface of sleepers and ballast and slide to a stop.
Depending on speed, a derailed car or locomotive may travel
some distance before stopping.
Effective derailing depends on
• Derail properly sized, installed, and maintained
• Cars and locomotives moving at slow switching speeds
(less than 5 mph).
• Flat track -- no grades
• Track open to the sleepers and ballast
• In curved track, derail installed on outer rail, not inner rail
• Ample open space along track for derailed car or locomotive to come to a stop
DERAILS HELP PREVENT

One car rolling into another Unauthorized locomotive A loose car rolling out
coupling to stationary car onto the mainline

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