Starettt testing Spindle

Our CNC Spindle Rebuild Process

Our entire CNC spindle rebuild process normally takes around 10 to 14 business days. If this timeline is too slow, ask about our expedited/emergency services.

Our repair process is as follows:

1. Inspect, Analyze, & Document the Condition of the Spindle as It Was Received

Once the spindle is unpacked, it is subjected to a cleaning, inspection, and analysis. Our technicians pre-test each spindle for vibration, pull force, run out, air purge flow, and other aspects to determine the inefficiencies affecting your CNC machine.

After the pre-test, our technicians fully disassemble your spindle in our HEPA Class 10,000 cleanroom and take photos of each component.

After our technicians complete this evaluation, a failure analysis report (FAR) is prepared. This report, complete with pictures and computer-generated analytical graphs, shows the damage that the spindle has sustained. It also includes a detailed list of what it will take to rebuild or repair the spindles. This list is the basis for the quote and estimated time to repair.

2. Acquire, Manufacture, & Repair All Parts Required for Assembly

We use our comprehensive inventory to source the best OEM replacement components for your spindle. Any component that doesn’t need to be replaced is thoroughly cleaned and lubricated before assembly. Additionally, as part of the rebuild process, we look for ways to improve product quality and cycle time to create optimal tolerances.

Our capabilities include:

  • Machining to Tolerances of 1 Micron
  • Bearing Repair
  • Vibration Analysis
  • Spindle Balancing
  • Electronics Analysis & Repair

3. Assemble the Spindle Components in a Class 10,000 HEPA Cleanroom

Any dirt that is introduced at assembly time could substantially shorten a spindle’s operating life. We virtually eliminate this problem by assembling each spindle in one of our two cleanrooms.

4. Test the Spindle in a Run-in Test

Once the assembly is complete, the spindle undergoes a run-in test. In this step, the spindle is run the way you would run it on your equipment. It’s at this point that last minute fine-tuning and balancing would be performed.

5. Prepare a Final Report

This report describes the key metrics and operating characteristics of the spindle after it has been rebuilt. It should show your spindle to be as good as or better than new. It will also carry the same warranty that it had when it was new.