Guden has a wide selection of spring loaded hinges, and we can fabricate custom spring hinges for you. See our Hinge and Spring Hinge Design Form for help in designing a custom part.
Since this is a Continuous Hinge, you may optionally specify
a cutoff length for the CAD model. This length will be rounded
up to the next multiple of the knuckle length.
More varieties of cutoffs are available -- contact Guden to ask
about Custom Continuous Hinges.