A worker can forget to lift up the derail sign after throwing the derail block onto the rail.

A derail without a visible warning sign is a hazard to rail traffic.

The new Aldon Pop-Up Derail virtually eliminates that danger. When you throw the derail onto the rail the sign automatically pops up. When you throw the derail off the rail the sign goes down by gravity below the top of the rail.

The Pop-up sign holder is permanently attached to the derail frame.

The Pop-Up feature is available for all our hinged models: two-way (as illustrated to right),
one-way left throw, and one-way right throw (illustrated below).

hinged derail - left throw hinged derail - right throw

Derails need to be sized to fit your rail height. We will send you a sizing form on receipt of your order, or click to download pdf.

Pop-Up Derail

#4014-14
Two-Way Hinged Derail with Pop-Up Sign (illustrated above)
$1,498
For rails 80-141 lbs. Wooden ties only. For freight cars and 4-axle locomotives. Weight 165 lbs

One-Way Hinged Derail with Pop-Up Sign
#4014-10 left throw
#4014-12 right throw
$1,279
For rails 80-141 lbs. Wooden ties only. For freight cars and all sizes of locomotives. Weight 156 lbs.

Flashing Blue Solar Light
#4115-135
$324.00 ea.

Shock-proof and weather-tight. Gravity switch activates light when sign holder is at 45 degree angle or greater. Brilliant 6-LED light visible for over a mile

Price includes a bracket which attaches to the arm of the Pop-Up Derail.

Hinged Derail Lifting Lever
#4014-25 $103.00 ea.

Derail Lifting Lever

Direction of derail throw.

derail throw direction

(direction of throw is from the viewpoint of the oncoming locomotive or rail car.)

Derails need to be sized to fit your rails.

There are many sizes of rail found in railroad tracks. Hinged and retractable derails need to be carefully fitted to the height of your rail.

We need to know either the height of your rail abobve the tie ...

... or

the rail size and section which is stamped at intervals along the web of the rail.

rail web identification

The markings are a code which precisely identifies your rail.

Out of our four standard derail sizes, we will supply the one closest to your rail size. Installation of the derail may require notching into two ties to lower the derail or shimming the derail to bring it level with your rail. (For shimming we can supply pre-drilled steel shims at nominal cost.)

We will send you a sizing form on receipt of your order, or click to download a pdf.

ALDON Company, Inc.

Derails

Hinged Derails with Pop-Up Sign

Direction of derail throw.

Derails need to be sized to fit your rails.

... or

Hinged Derails with
Pop-Up Sign