At Katy Spring, various springs are tested for load.
Here is a list of notes in addition to the above to keep in mind when ordering compression springs from Katy Spring:
1. The normal square ness tolerance for ground ends is 2-3 degrees.
2. Use conical compression springs when a short, solid height is needed to reduce buckling and surging.
3. Leave the wind direction optional for compression springs. Use right hand wound when the compression spring is being threaded on a bolt, one right and one left when two springs are being used inside the other to avoid meshing coils.
4. Specify a force with a tolerance (+/- 10 percent) at an exact compressed height rather than a definite deflection. Spring rate is the difference of two forces divided by the amount of deflection between those forces.
5. Make Katy Spring aware of unusual conditions such as temperature, corrosive environments, impact force, and fatigue life.
6. Specify the mandatory requirements only to Katy Spring. Leave the exact wire size and number of coils to the discretion of Katy Spring whenever possible.
7. Make Katy Spring aware of the spring travel and any solid height requirements.
8. After the parameters are determined, view Katy Spring’s online catalog for a possible match to your compression spring need.