Höfler spindle and motor spindle repair
Brochexpress is an independent workshop specialising in the repair, maintenance and diagnostics of Höfler spindles and motor spindles — the German builder of generating and profile grinders for cylindrical gears, today part of the Klingelnberg group.
Höfler, the German benchmark in cylindrical gear grinding
TLDR: Höfler is a historic German builder of cylindrical gear grinders, used after case hardening and heat treatment to reach high tooth quality grades (ISO 4 to 6) on high-performance gears, alongside Reishauer in this segment.
After hobbing on Liebherr, Gleason or Bourn & Koch machines for cylindrical gears, the pinions are case hardened in an atmosphere furnace, oil quenched and then tempered to reach a high surface hardness while keeping a tough core. Grinding is then carried out on Höfler grinders, alongside Reishauer, to reach ISO 4 to 6 grades on the high-performance gears intended for servo motors and robotics — a step that directly determines the efficiency, the noise and the service life of the transmission. Höfler gear grinders, such as the Promat 400, are 4-axis CNC machines dedicated to straight involute cylindrical gear systems and to special tooth forms.
A range of grinding wheel spindles with integrated dresser for cylindrical gear grinding
TLDR: Höfler grinders use a grinding wheel spindle together with an integrated CNC dresser that profiles the wheel directly on the machine, for 4-axis grinding of straight involute cylindrical gears and special profiles.
On Höfler gear grinders such as the Promat 400, the wheel is profiled using a CNC dresser integrated directly into the machine, allowing the wheel profile to be adapted quickly to the required tooth profile without removal. This 4-axis CNC configuration covers both straight involute cylindrical gear systems and special tooth forms, with high accuracy after heat treatment. These machines complete the manufacturing process for high-performance gears, particularly for applications requiring ISO 4 to 6 quality after grinding.
Höfler spindles covered (non-exhaustive list)
- Grinding wheel spindles of cylindrical gear grinders, Promat series
- Spindles working with the integrated CNC wheel dresser
- Grinding spindles for straight involute tooth forms
- Grinding spindles for special tooth profiles
- Spindles of 4-axis grinders, all generations
Interfaces and specifications
The Höfler spindles we repair come in 4-axis CNC configurations with an integrated CNC dresser — exact specifications (rotation speeds, interfaces) to be confirmed on quotation according to the reference of your machine.
Our expertise on your Höfler spindles and motor spindles
TLDR: Brochexpress works across the entire life cycle of your Höfler 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 your gear grinding line
Full diagnostics
- Inspection of clearances, balancing, bearing condition, sealing and the integrated CNC dresser, with a detailed technical report
Preventive and corrective maintenance
- Maintenance programme tailored to the precision requirements of gear grinding after heat treatment, 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 Höfler spindles and motor spindles
- An independent workshop, with no capital ties to manufacturers, guaranteeing an objective diagnosis
- Expertise in grinding wheel spindles and integrated CNC dressers
- Two service sites: Beaurepaire (France) and Lussery-Villars (Switzerland)
- Support from the first intervention through to return to production
Turnaround 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 the grinding wheel spindles of Promat 400 grinders?
Yes, we work on these spindles, taking into account their integrated CNC dresser.
Do you work on spindles dedicated to grinding straight involute cylindrical gears?
Yes, we diagnose and repair these spindles, whatever the tooth profile concerned.
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).
Do you work on historic Höfler grinders still in production?
Yes, we diagnose and repair the spindles whatever the age of the machine.
Do you offer a preventive maintenance contract for a fleet of Höfler machines?
Yes, we draw up preventive maintenance programmes tailored to your production pace.
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 Höfler spindles and motor spindles — cylindrical gear grinders — with the responsiveness and rigour demanded by the most exacting industrial environments: servo motors and robotics.
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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Höfler® is a registered trademark, today part of the Klingelnberg group. Brochexpress is neither affiliated with, nor a partner of, nor an authorised distributor of the Klingelnberg 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).