HSTec spindle and motor spindle repair
Brochexpress is an independent workshop specialising in the repair, maintenance and diagnostics of HSTec spindles and motor spindles — a brand of the German CHIRON group, with a range covering milling, boring and grinding, including spindles reaching up to 80,000 rpm.
HSTec, a CHIRON group brand specialising in high-performance spindles
TLDR: HSTec, a brand of the CHIRON group, designs high-performance spindles for a wide variety of milling, boring and grinding applications, with robust and reliable ranges suited to high load capacities and high-efficiency machining on numerically controlled machine tools.
HSTec, a brand of the German CHIRON group (the machining centre manufacturer also covered in our pages), designs high-performance spindles for a wide variety of milling and boring applications, robust and reliable for high load capacities, built for high-efficiency machining on numerically controlled machine tools. Beyond milling, HSTec also develops high-precision spindles for internal and external cylindrical grinding, with reduced vibration amplitudes during the grinding process guaranteeing excellent workpiece surface quality. That dual competence, milling and grinding, sets HSTec apart from many manufacturers specialised in a single segment.
A range of motor spindles from low-speed tapping up to 80,000 rpm
TLDR: HSTec motor spindles cover a very wide speed range depending on the series, from 300 rpm on CAQ series boring spindles up to 80,000 rpm on the 96 series dedicated to very high speed milling, with grinding spindles reaching 75,000 rpm.
HSTec CAQ series motor spindles, dedicated to boring, cover a rotation speed range from 300 to 1,100 rpm, suited to operations requiring high torque at moderate speed. On the HFSAC series, dedicated to milling, rotation speed can reach 24,000 rpm for spindle diameters of 65 or 80 mm. The 96 series, aimed at very high speed milling and cutting, covers a range from 0 to 80,000 rpm, a level of performance that allows the economical machining particularly sought after in mould making. In the grinding segment, the HSM060SB spindle can reach 75,000 rpm for a diameter of 120 mm, illustrating the manufacturer's expertise in very high speed grinding applications requiring excellent surface quality.
HSTec spindles and motor spindles covered (non-exhaustive list)
- Boring motor spindles, CAQ series, 300 to 1,100 rpm
- Milling motor spindles, HFSAC series, up to 24,000 rpm
- Very high speed milling and cutting motor spindles, 96 series, up to 80,000 rpm
- Internal and external cylindrical grinding motor spindles, up to 75,000 rpm (HSM series)
- Motor spindles fitted on CHIRON group machining centres
Interfaces and specifications
The HSTec spindles and motor spindles we repair cover a very wide speed range, from 300 to 80,000 rpm depending on the series (boring, milling or grinding) — exact specifications to be confirmed on quotation according to the reference of your spindle.
Our expertise on your HSTec spindles and motor spindles
TLDR: Brochexpress works across the entire life cycle of your HSTec spindles and motor spindles, with the same rigour as for 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 high-value equipment
Full diagnostics
- Inspection of clearances, balancing, bearing condition and sealing, with a detailed technical report
Preventive and corrective maintenance
- Maintenance programme tailored to the accuracy demands of milling and grinding, together with corrective action in the event of a breakdown
Overhaul and refurbishment
- Grinding, bearing replacement, sealing refurbishment and rotation testing in the workshop, restoring the manufacturer's original tolerances
Why choose Brochexpress for your HSTec spindles
- An independent workshop, with no capital ties to manufacturers, guaranteeing an objective diagnosis
- Expertise in very high speed motor spindles and precision grinding configurations
- Two service sites: Beaurepaire (France) and Lussery-Villars (Switzerland)
- Support from the first intervention through to return to production
Turnaround and warranty
What we commit to on the HSTec spindles we take in:
- 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 very high speed HSTec motor spindles (up to 80,000 rpm)?
Yes, we work on these spindles, taking account of their specific balancing requirements.
Do you work on HSTec grinding spindles (HSM series, up to 75,000 rpm)?
Yes, we diagnose and repair these spindles, preserving their characteristically low vibration amplitude.
How long does a full overhaul take?
Allow around 20 working days in the workshop, depending on the condition of the spindle and the availability of parts (bearings, seals, specific components).
Do you work on CAQ series boring motor spindles?
Yes, we diagnose and repair these spindles, whatever the configured speed.
Do you offer a preventive maintenance contract for a fleet of machines fitted with HSTec motor spindles?
Yes, we set up preventive maintenance programmes tailored to your production rate.
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 all HSTec spindles and motor spindles — milling, boring and grinding motor spindles — with the responsiveness and rigour demanded by the most exacting industrial environments.
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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HSTec® is a registered trademark of the CHIRON group. Brochexpress is neither affiliated with, nor a partner of, nor an authorised distributor of the CHIRON group. 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).