Overhaul of damaged GMN TE120sx400-61913 spindle – full service warranty

Bybmsserwis

GMN TE120sx400-61913 spindle – restored and reinforced beyond factory standards

  • Spindle model: GMN TE120sx400-61913

  • Tool taper: SK40

  • Rotational speed: 8,000 rpm

An extremely damaged GMN spindle arrived at our service center, with the SK40 taper severely worn due to prolonged use without prior servicing. The spindle underwent a full overhaul process – from disassembly and diagnostics to component repairs, followed by final testing and dynamic balancing.

Thanks to our experience in electrospindle repairs, we were able to restore the spindle to parameters not only meeting factory standards but even exceeding them in terms of strength and precision.

Spindle overhaul GMN TE120sx400-61913

Scope of work
during the repair of GMN TE120sx400-61913 spindle

1. SK40 taper repair
The GMN spindle arrived with a heavily worn taper, making secure tool clamping impossible and causing serious runout. We performed precise grinding and geometry correction, restoring full tolerance compliance.
2. FAG spindle bearing replacement
We used premium FAG bearings with the largest possible ceramic ball. This configuration improves load capacity, vibration resistance, and significantly extends operational lifetime – even under demanding industrial conditions.
3. Housing and rotor bearing seat restoration
The bearing seat diameters in both the rotor and housing were restored to nominal dimensions. This eliminated previous clearances and coaxiality issues. The entire spindle assembly was aligned to ensure high rigidity and even force distribution.
4. Drawbar mechanism replacement
A new factory-grade SK40 drawbar gripper and full set of return springs were installed. The drawbar performance was verified via clamping force testing on our calibration stand.
Drawbar repair GMN TE120sx400-61913

Final result
of the GMN TE120sx400-61913 spindle repair

Thanks to the work completed, the spindle was fully restored to operational condition. Moreover, the strength parameters were improved beyond factory levels through the use of more durable components and optimized fits. The spindle is now ready for long-term service with minimal risk of future failure.

For full customer comfort and safety, we provided our additional door-to-door service. On a Saturday, our technician traveled over 1100 km to collect and deliver the spindle in express mode – reducing machine downtime and ensuring guaranteed delivery.

Spindle balancing GMN TE120sx400-61913 Spindle service GMN TE120sx400-61913

Professional documentation
and warranty after GMN TE120sx400-61913 spindle service

Each step of the repair process was recorded and confirmed with technical documentation. The customer received a complete reconditioning report, measurement results, and a certificate of dynamic balancing. A full service warranty was issued for all performed work.

Also check our spindle disassembly and installation service, performed by our mobile team throughout Poland and across Europe.

Spindle maintenance GMN TE120sx400-61913 Spindle repair GMN TE120sx400-61913
Spindle refurbishment GMN TE120sx400-61913 Spindle maintenance GMN TE120sx400-61913

Quality assurance
and durability

Trust the expertise of BMS CNC SPINDLE SERVICE – if your GMN spindle needs urgent intervention, call us or fill out the online form. We guarantee reliability, fast response times, and full documentation for every repair.

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