Evaluating Check Ring Performance…

This question addresses a common issue for many techs…

What is the best way to evaluate the performance of a check ring?
My Response
To evaluate the performance of the check ring, it is recommended that you perform the dynamic check ring repeatability test. This test consists of producing and weighing a series of ten short shots. The variation of the weights is then determined and represented as a percentage.
Additional Thoughts
Although a shot to shot variation above 3% is typically considered unacceptable, you should consider performing this test on some different processes which are functioning properly to determine a baseline of comparison for your machines and materials.

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