DSW DasSpindelWerk

If a spindle has a fault, our Spindle Service deals with the problem rapidly and efficiently. But why wait so long if problems can be eliminated in advance?

Our Spindle Diagnosis does not start with a fault but with a fully functional spindle. In our eyes, it is better to carry out diagnostics during running operation and to identify possible weak points. In our experience, 30 to 40 percent of all spindle defects arise due to insufficient or no maintenance.

With the Spindle Diagnosis you save money and do not require costly repairs or a replacement spindle. Naturally, our diagnostic work can be planned precisely in advance to avoid downtime on your machine tool.

Spindle Diagnosis means that we scrutinize the state of the anti-friction bearings and the geometry of your spindle, for example. In some cases, we can detect minimum deviations here which, over time, can become a serious issue. We also check the interface to the tools used as well as the clamping state of the spindle.

Our Spindle Service specializes in products from the manufacturers DMG, Franz Kessler, StepTec and GMN. If required, we would naturally also be pleased to assist with products from other manufacturers, too.
Through regular spindle diagnostics and spindle maintenance, you achieve

  • an extended service life
  • an increase in machine availability
  • a rise in productivity and quality
  • early recognition of spindle damage
  • optimization of the machining process

Work Process

1. Geometric analysis of the motor spindle in the assembled state

  • Runout to 300 mm in length using a calibration mandrel
  • Runout to 50 mm in length using a calibration mandrel
  • Axial shaft displacement for measuring pre-tensioning
  • Radial shaft displacement for measuring bearing clearance

2. Analyses

  • Assessing the state of the anti-friction bearings
  • Vibration analysis for determining running smoothness and wear
  • Recording imbalance in mm/s (vibration analysis)
  • Measuring heat generation in the bearing

3. Visual Inspection

  • Hydraulic system
  • Air system (cone cleaning & sealing air)
  • Clamping system (chuck & clamping set)
  • Cooling system (external cooling, internal cooling & spindle cooling)
  • Proximity switch (open/with tool/without tool)
  • Rotary feedthrough

4. Functional Analysis of the Clamping System

  • Checking travel
  • Clamping force of the system
  • Checking the chuck and setting dimension

5. Generating an Assessment (Extensive Test Report) of the Actual State of the Measured Spindle

Should you be interested, we would be happy to arrange an appointment. We are there for you.