Conforce®
Constant Force Springs

Conforce springs offer high force output with very small space requirements, provide long linear reach with minimal force buildup, and store power indefinitely when extended. They are ideal for a wide variety of applications where constant force is needed, including applications requiring smooth returning and retrieving, counterbalancing applications, and tensioning and loading applications.

Because there are a number of different Constant Force spring design possibilities for a given application it is suggested that you consult with a Vulcan engineer early in the design phase.

After you work through the product specifier below, submit your information and the specifier will create a Constant Force Spring specification sheet for submission to Vulcan.

The following parameters affect the constant force spring design:
Material - Typically Type 301 stainless steel, but high-carbon steel and other materials are available for Constant Force springs and many other springs.

Life - An estimate which is too low leads to early failure, an estimate which is too high makes the Constant Force spring larger and more expensive than necessary.

Force - should equal the requirement of the application, normal tolerance is +/- 10%.

Available Space - for proper operation, constant force springs require .8 x I.D. (see drawing).

Length - allow at least 1 and 1/2 turns to remain when the Constant Force spring is fully extended.

Environment - corrosive atmospheres and/or extreme temperatures will affect the Constant Force springs life and material selection.

End Detail - select END DETAIL to view a selection of VULCAN's many standard end detail designs. Custom designs are available for Constant Force springs.

Mounting Methods - select MOUNTING METHODS to view a selection of single and multiple mounting recommendations.