WEINIG HSK 63F spindle repair – taper restoration and bearing replacement

Bybmsserwis

Restoring performance and precision after taper damage

At our service center, we had the opportunity to restore full functionality to a WEINIG spindle that arrived with a severely damaged HSK 63F taper. The failure was so critical that it prevented tool release — the tool got jammed in the taper, and all disassembly attempts were unsuccessful.

Spindle specifications:

  • Manufacturer: WEINIG

  • Tool taper: HSK 63F

  • Machine type: Planer

WEINIG HSK 63F spindle service

Root cause of the issue
seized HSK 63F taper

During the initial diagnostics, we determined that the spindle taper showed not only mechanical damage but also localized overheating. These types of failures usually occur due to:

  • improper tool installation,
  • lack of clamping system maintenance,
  • operating the spindle in unsuitable conditions,

Such damage can lead to misalignment, reduced clamping force, and a significant decline in machining precision. Therefore, we carried out a full restoration of the taper surface according to HSK 63F factory specifications.

Damaged spindle taper WEINIG HSK 63F Grinding of spindle taper WEINIG HSK 63F

Scope of work performed
during WEINIG spindle repair with HSK 63F taper

The restoration process was carried out comprehensively, following our internal service procedures:

1. Spindle disassembly and diagnostics
The spindle was disassembled, thoroughly cleaned, and all mechanical and electrical components were verified.
2. HSK 63F taper restoration
We used specialized tooling for restoring and grinding the taper surface. The taper regained its geometry according to DIN69893 standard.
3. Spindle bearing replacement
New precision ceramic bearings were installed, selected specifically for the working conditions of this spindle model.
4. Tool clamping force test
We performed working condition simulations, voltage, and resistance testing of the entire signal path.
5. Precision spindle balancing
The balancing accuracy reached a level of 0.4G.
6. Load testing and final inspection
The spindle was tested at various speeds and temperatures, and the results were recorded in a service report.
WEINIG HSK 63F spindle repair Technical diagnostics of WEINIG HSK 63F spindle

Precision
that restores confidence

After the restoration, the spindle regained full functionality and was returned to the customer with complete documentation. The HSK 63F taper now enables quick tool clamping and unclamping without resistance, with operating parameters fully compliant with the manufacturer's specifications.

Thanks to our expertise in restoring damaged spindle tapers, we bring even the most degraded spindles back to life. If your spindle shows similar symptoms — call or message us. We will prepare a tailored repair plan and cost estimate.

Why it’s worth restoring the
HSK 63F taper in WEINIG spindles

  • Lower cost compared to purchasing a new spindle
  • Fast turnaround and parts availability
  • Guaranteed precision and operational safety
  • Option for full calibration and balancing
Complete repair of WEINIG HSK 63F spindle Restoration process of WEINIG HSK 63F spindle

Trust experience
choose specialists in spindle repair

Regardless of the manufacturer, model, or machine type — we specialize in restoring tool tapers such as HSK, SK, BT, and others. If your spindle shows signs of damage, runout, or tool clamping issues, feel free to contact us. Our service also includes spindle balancing, clamping force calibration, and spindle geometry alignment.

Click below and contact us — we will help you restore full precision to your spindle.

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