continuous hinge has excellent qualities as a versatile fastener. These
Three Design Methods
- Uniform strength throughout the entire length.
- Smooth pivotal action.
- Easier and more accurate alignment than two or more butt hinges.
- No mortising required.
- Many load-bearing points (equal to the number of knuckles per leaf).
- Increased rigidity.
- Almost any length, width, thickness or material.
- Many secondary operations are
available for customization: holes, offsets, PEM™ fasteners, springs and
- Stock parts available in steel, stainless steel (304 and 316), aluminum
(stamped and extruded) and brass.
- Modify a stock hinge: cut down a standard length, punch holes
in choice of size, spacing and shape (e.g. round, square, rectangular,
obround - countersunk or plain). This is the best option for small quantities, rush
delivery or experimental samples.
- Secondary operations on a custom-run base hinge: run the base
hinge in a hand blank and curl operation (usually for heavier
gauges) or on a scrapless automatic line (for lighter gauges).
Finish with offset or swaged leaves, rounded corners, stamped
part numbers, PEM™ fasteners, springs, staked or spun pins, holes,
etc. This is the most common method for moderate quantities,
and generally takes longer than the first method.
- Full custom manufacture: scrapless automatic production with
custom-made tools. Eliminates the need for secondary operations.
Longer lead time on first order. Quick production and lowest cost
on reorders of large quantities. Note: This method may involve tooling costs.
Keep these factors in mind for optimal performance
at an economical cost:
- Select a standard product from our catalog. We
have over 600 in-stock items from which to choose.
- For most items (up to .074 thick) it is most economical to
choose an even multiples of knuckle length. For heavier items
that are hand blanked and curled, this is less important. We may
suggest a different knuckle length, number of knuckles or overall
hinge length to afford you the optimum value.
- Partial end knuckles on lighter hinges (below .074") can
bind because they are deformed in the cut off operation.
- Unequal leaves on lighter hinges should have a total width
equal to a standard width. For example, leaves of .50" and
1.50" (2.00" total - a standard) are preferable to .50"
and .625" (1.125" total).
- Use the same thickness hinge leaf as the door or base material.
Exceptions are recommended when the width of the door is more
than twice the height, or if a device mounted on the door doubles
the moment of the door.
- A 2:1 ratio of pin diameter to leaf thickness usually provides
optimum strength. For example, a .120" diameter pin with
a .060" leaf.
- Most stock hinges are supplied with the pins not staked in
place. Let us know if you require staking or not. (Those stock hinges
which are staked are so noted.)
- Standard tolerances for hinges made with secondary finishing
operations are shown in the diagrams below. If you require tighter
tolerances for your application, we may be able to meet your requirements
with special fixtures or tooling.
.025 to .062 thick
.074 and thicker