The customer is currently using a standard duty Coiled Spring Pin for use as a hinge pin in a circular saw blade guard application. An engineering review was generated to review this application because the customer complained of excessively high insertion forces.
The customer had two different assembly lines that were used to install the Coiled Spring Pin. All of the insertion problems were experienced on the fully automated line that had less than half of the insertion force of the semi-automated line. Based on empirically derived insertion data for the Coiled Spring Pin, the automated line had a cylinder that was undersized for this application.