Kuroda JenaTec spindle, motor spindle and precision component repair
Brochexpress is an independent workshop specialising in the repair, maintenance and diagnostics of Kuroda JenaTec spindles, motor spindles and precision components — the century-old Japanese group (Kuroda Precision Industries) merged in 2012 with Germany's Jenaer Gewindetechnik, a supplier of ball screws, actuators, linear guides and machine tool spindles.
Kuroda JenaTec, a century of Japanese precision, reinforced from Germany
TLDR: Kuroda Precision Industries, founded in 1925 in Japan as a manufacturer of precision gauges, developed press dies, grinding machines, machining tooling and precision ball screws over the decades, before merging in 2012 with Germany's Jenaer Gewindetechnik to form the global Kuroda JenaTec brand, today a supplier of ball screws, actuators, linear guides and spindles for the semiconductor, medical, machine tool and robotics sectors.
Kuroda Precision Industries was founded in 1925 in Japan as a manufacturer of precision gauges, before successively developing press dies, numerically controlled surface grinders, super-polishing machines, machining tooling and precision ball screws, building on its precision processing technology. The global Kuroda JenaTec brand was born in November 2012, when Kuroda Precision Industries acquired the European JENATEC group, a long-standing manufacturer of linear drive equipment based in Jena, Germany (Jenaer Gewindetechnik GmbH). That merger brought together the precision technologies and commercial networks of both companies to offer worldwide support in Asia, North America and Europe, with ISO 9001 and 14001 certified manufacturing sites in Japan and Germany.
A range of precision ball screws and spindles for high-precision applications
TLDR: Kuroda JenaTec offers precision ball screws from 5 to 125 mm in diameter, available in ground (C3) or rolled (C5, C7, C10) grades, together with spindles for high-precision applications used notably in CNC machining centres, surgical robots and semiconductor manufacturing equipment.
Kuroda JenaTec ball screws cover diameters from 5 to 125 mm, available in ground (grade C3), turned-and-rolled (C5) or rolled (C7 and C10) quality, compliant with Japanese JIS-B1192 standards and with DIN standards. The manufacturer builds its own thread grinding machines dedicated to ball screws, a vertical integration that guarantees machining accuracy and meticulous assembly of shafts, nuts and recirculation elements. Beyond ball screws, the Kuroda JenaTec catalogue also covers actuators, linear guides and spindles for high-precision applications, used in CNC machining (for stable torque and minimal backlash guaranteeing fine surface finishes, particularly on reverse cuts), in surgical robotics and medical dosing systems, and in semiconductor manufacturing equipment where consistent motion over many cycles reduces recalibration needs.
Kuroda JenaTec spindles and motor spindles covered (non-exhaustive list)
- High-precision spindles for CNC machining centres
- Precision ball screws used on machine tool feed axes
- Actuators and linear guides for precision positioning applications
- Precision components for surgical robots and medical equipment
- Precision components for semiconductor manufacturing equipment
Interfaces and specifications
The Kuroda JenaTec spindles and precision components we repair cover ball screws from 5 to 125 mm in diameter, in ground or rolled grades, together with the spindles associated with the precision axes — exact specifications to be confirmed on quotation according to the reference of your equipment.
Our expertise on your Kuroda JenaTec spindles and motor spindles
TLDR: Brochexpress works across the entire life cycle of your Kuroda JenaTec 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 precision equipment
Full diagnostics
- Inspection of clearances, balancing, bearing condition and the associated ball screw, with a detailed technical report
Preventive and corrective maintenance
- Maintenance programme tailored to the accuracy demands of CNC machining, medical and semiconductor work, 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 Kuroda JenaTec spindles
- An independent workshop, with no capital ties to manufacturers, guaranteeing an objective diagnosis
- Expertise in precision spindles and the associated linear motion components
- 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 Kuroda JenaTec 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 Kuroda JenaTec precision spindles fitted on CNC machining centres?
Yes, we work on these spindles, taking account of their stable torque and low backlash requirements.
Do you work on the ball screws of the machine's feed axes?
Yes, we diagnose and repair these components, whatever the grade (ground or rolled).
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 Kuroda JenaTec equipment used in medical or semiconductor environments?
Yes, we diagnose and repair these spindles, respecting the accuracy requirements specific to those sectors.
Do you offer a preventive maintenance contract for a fleet of Kuroda JenaTec equipment?
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 Kuroda JenaTec spindles and precision components for machine tools and high-technology applications — with the responsiveness and rigour demanded by the most exacting industrial environments: CNC machining, medical and semiconductors.
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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Kuroda JenaTec® is a registered trademark of Kuroda Precision Industries Ltd. Brochexpress is neither affiliated with, nor a partner of, nor an authorised distributor of Kuroda Precision Industries Ltd. 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).