Yasda spindle and motor spindle repair
Brochexpress is an independent workshop specialising in the repair, maintenance and diagnostics of Yasda spindles and motor spindles — a leading Japanese manufacturer of ultra-high-precision machining, renowned for its 5-axis machining centres dedicated to mould-making, watchmaking, medical and aerospace.
Yasda, a global benchmark in ultra-high-precision machining
TLDR: Yasda (founded in 1929 in Osaka, now based in Okayama, Japan) designs 3 and 5-axis machining centres recognised as a global benchmark in precision, thanks to hand-scraped surfaces, advanced thermal stability and the in-house design of the spindles by the manufacturer itself.
Founded in 1929 in Osaka as a small three-person workshop making engine-cylinder boring machines, Yasda has established itself over the decades as a global benchmark in ultra-precision machining. The manufacturer, now based in Okayama, designs and builds all of its machines in-house — including the spindles — with a craftsman-level standard: guideways, spindle housings and pallet faces are hand-scraped to guarantee durable geometric precision, even after several decades of intensive use. Yasda machining centres equip demanding workshops in mould-making, watchmaking, medical, aerospace, optics and semiconductor tooling, notably for the machining of hard steels and high-precision cavities.
A range of in-house designed and built spindles for thermal stability
TLDR: Yasda spindles integrate a spindle sleeve positioned to minimise thermal influences, a self-regulating bearing preload and, depending on the model, a thermal elongation compensation system guaranteeing a constant load on the bearings.
Yasda spindles are entirely designed and built by the manufacturer, which places them at the heart of its precision strategy: the spindle sleeve is optimally positioned within the force paths to minimise thermal influences on the X and Y axes, while an oil circulation through the column and sleeve maintains the thermal stability of the whole assembly. On the top-of-the-range models, a self-regulating bearing preload system and an in-line coupling with separation of the motor and the spindle prevent any transmission of motor vibration to the tool, while a thermal elongation compensation system ensures a constant load on the bearings even during long machining cycles.
Yasda spindles covered (non-exhaustive list)
- Spindles for simultaneous 5-axis machining centres with swivelling/tilting table, PX range
- Spindles for high-speed micro-machining centres for micro-milling, YMC range
- Spindles for large-travel vertical machining centres, YBM range
- Spindles for 5-face horizontal machining centres with pallet changer
- Spindles fitted with thermal compensation and self-regulating preload systems
Interfaces and specifications
The Yasda spindles we repair feature submicron positioning tolerances (in the region of 0.3 to 0.5 µm depending on axis and model) and thermal compensation systems specific to the manufacturer. The tool interfaces vary according to the range and application (micro-machining, mould-making, aerospace) — to be confirmed on quotation according to the exact reference of your machine.
Our expertise on your Yasda spindles and motor spindles
Brochexpress works across the entire life cycle of your Yasda spindles, with the same rigour as on the other brands in our portfolio.
On-site customer service
- Diagnostics and service directly on your machine, in your production workshop, to limit downtime on very high-added-value equipment
Full diagnostics
- Inspection of clearances, balancing, bearing condition, sealing and the thermal compensation systems specific to Yasda, with a detailed technical report
Preventive and corrective maintenance
- A servicing programme tailored to the long-term geometric stability requirements specific to these very high-precision machines, as well as corrective work in the event of a breakdown
Overhaul and refurbishment
- Grinding, bearing replacement, reworking of the sealing and workshop rotation testing, restoring the manufacturer's original tolerances
Why choose Brochexpress for your Yasda spindles and motor spindles
No capital ties with manufacturers, guaranteeing an objective diagnosis
Very high-precision spindles and their thermal compensation systems
Beaurepaire (France) and Lussery-Villars (Switzerland)
From the first intervention through to return to production
Lead times and warranty
- On-site service within 48h
- Workshop repair: around 20 working days depending on parts availability
- 12-month warranty on all our repairs
Frequently asked questions
Do you repair spindles fitted with Yasda thermal compensation systems?
Yes, we work on these spindles, taking into account their specific self-regulating bearing preload and thermal elongation compensation systems.
Do you work on Yasda micro-machining centres dedicated to micro-milling?
Yes, we diagnose and repair the spindles of these machines, taking care to preserve the submicron precision level specific to this equipment.
What is the average lead time for a full overhaul?
Allow around 20 working days in the workshop, depending on the condition of the spindle and the availability of parts (bearings, seals, specific components).
Can a repair affect the geometric precision guaranteed by Yasda?
Our overhaul process aims to restore the manufacturer's original tolerances, with particular care given to the contact surfaces and bearing clearances, which are essential on this type of machine.
Do you offer a preventive maintenance contract for a fleet of Yasda machines?
Yes, we set up preventive maintenance programmes tailored to the criticality of this equipment, particularly relevant for mould-making and watchmaking workshops.
A reliable partner for your industrial performance
Whether it is an emergency on-site intervention, a full workshop overhaul or a preventive maintenance programme, Brochexpress brings its expertise to your production. As an independent workshop, we work across the entire Yasda range — spindles for ultra-high-precision machining centres — with the responsiveness and rigour demanded by the most exacting industrial environments: mould-making, watchmaking, medical and aerospace.
Our teams are at your disposal from our sites in Beaurepaire (France) and Lussery-Villars (Switzerland) for a study of your needs, a diagnosis or a personalised quotation.
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Yasda® is a registered trademark of Yasda Precision Tools K.K. Brochexpress is neither affiliated with, nor a partner of, nor an authorised distributor of Yasda Precision Tools K.K. Our business covers independent repair and maintenance of industrial equipment, permitted under the principle of referential trademark use (EU Trademark Directive 2015/2436 / French Intellectual Property Code, art. L.713-6).