650-1100 pound torsion coil spring?

[ChrisDuncan]

I need a torsion coil spring rated up to 1100 lbs. but design space is limited to 4" Diameter x 48" length.

The range of motion needs to be 11 revolutions.

Is this possible? If not 1100 lbs. then what is the maximum rate spring that would fit within this size?

 

[israelkk]

1. Torsion spring is measured by torque and not by force (1100 lbs are just force not torque).
2. 11 revolution are not feasible by helical torsion spring.

A better description of your problem is needed. Picture will help too. What kind of torsion spring you have in mind?

 

[ChrisDuncan]

This is like a garage door torsion coil spring.

It drives a shaft with an ANSI 60 chain sprocket with a 3" pitch diameter.

So I need a 1650 in/lbs torque spring.

I miscalculated on the turns, it only needs to be 3 revolutions.