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How many times can a spindle be requalified?

spindle times
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How many times can a spindle be requalified?

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On a typical machine it can be done 5 or 6 times before any extemporaneous steps need to be taken. It is necessary to check the gage line to the face of the spindle and the draw-bar pressure before and after each spindle requalification. This is a part of the service that we provide, and should be done by anyone who requalifies your spindles. As a reference it should be .015″ from the face of the spindle. Various machine manufacturers may deviate from this number. If the gage line is negative more than .015″, make sure that the draw-bar pressure is adequate and that the tool changer does not have any conflicts.

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