Danobat grinding spindle repair
Brochexpress is an independent workshop specialising in the repair, maintenance and diagnostics of Danobat grinding spindles — a Spanish cooperative manufacturer founded in 1954, parent company of Soraluce, and a reference in internal/external cylindrical and centerless grinding.
Danobat, 70 years of Spanish precision grinding expertise
TLDR: Danobat (Elgoibar, Basque Country, Spain, founded in 1954, part of the Mondragon Corporation) is one of Europe's leading machine tool manufacturers, with more than 600 employees and over 70 years of expertise in developing high-precision grinding machines and lathes.
Founded in 1954 in Elgoibar, in the Spanish Basque Country, with the initial aim of offering external grinding operations, Danobat grew through a series of mergers and new business units to form Danobatgroup in 1992 — a strategic group in the sector integrated into the Mondragon Corporation, which also includes the Soraluce brand for large-capacity milling-boring. Danobat invests 8 to 10% of its revenue in innovation and offers a very broad range of internal, external, centerless and vertical grinding machines, highly customisable to the part being machined. The Overbeck brand, part of the group, brings a century of expertise in internal, external, face and radius grinding of the highest precision.
A range of grinding spindles for every machining configuration
TLDR: Danobat grinding machines cover a wide range of spindles depending on the application, from surface grinding spindles (typical speed of 1,440 rpm) to universal cylindrical grinding spindles guided on bronze bearings (hydrodynamic guidance).
Danobat surface grinders feature a grinding spindle typically running at 1,440 rpm for a power output in the order of 7.5 kW, with wheel dimensions of up to 400 x 100 x 127 mm. Universal cylindrical grinders, such as the 1200 RP series, have both a workhead spindle and a wheelhead spindle guided by bronze bearings on the hydrodynamic guidance principle, ensuring stability and precision over time. On the Overbeck internal grinding range, machines allow simultaneous internal, external, face and radius grinding on components of up to 1,250 kg and 1,200 mm, with configurations customisable to production requirements.
Danobat grinding spindles covered (non-exhaustive list)
- Surface grinding spindles, typical speed 1,440 rpm
- Universal cylindrical grinding spindles, hydrodynamic guidance on bronze bearings
- Overbeck internal grinding spindles, up to 1,200 mm component size
- Centerless grinding machine spindles for series production
- Vertical grinding machine spindles for large-size parts
Interfaces and specifications
The Danobat grinding spindles we repair cover a wide range of applications depending on the range (surface, cylindrical, internal, centerless), with rotation speeds typically around 1,440 rpm in surface grinding and hydrodynamic guidance on universal cylindrical configurations — specifications to be confirmed on quotation according to the exact reference of your machine.
Our expertise on your Danobat grinding spindles
TLDR: Brochexpress works across the entire life cycle of your Danobat spindles, with the same rigour as for the other brands in our portfolio.
On-site customer service
- Diagnosis and intervention directly on your machine, in the production workshop, to limit downtime on very high value-added equipment
Full diagnostics
- Inspection of clearances, balancing, the condition of the bronze bearings (hydrodynamic guidance), sealing and the simultaneous internal/external grinding systems, with a detailed technical report
Preventive and corrective maintenance
- A maintenance programme tailored to the precision requirements specific to precision grinding, as well as corrective interventions in the event of a breakdown
Overhaul and refurbishment
- Grinding, bearing replacement, seal refurbishment and rotation testing in the workshop, restoring the manufacturer's original tolerances
Why choose Brochexpress for your Danobat grinding spindles
- An independent workshop, with no capital ties to manufacturers, guaranteeing an objective diagnosis
- Expertise in hydrodynamic guidance spindles and Overbeck internal grinding configurations
- Two service sites: Beaurepaire (France) and Lussery-Villars (Switzerland)
- Support from the first intervention through to the 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 with hydrodynamic guidance on bronze bearings?
Yes, we work on these spindles, taking into account their specific stability and precision requirements.
Do you work on internal grinding spindles from the Overbeck range?
Yes, we diagnose and repair these spindles, designed for simultaneous internal, external, face and radius grinding.
What is the average lead time for a complete overhaul?
Allow around 20 working days in the workshop, depending on the condition of the spindle and the availability of parts specific to these precision technologies.
Do you work on centerless grinding machine spindles for series production?
Yes, we diagnose and repair these spindles, designed for high production rates.
Do you offer a preventive maintenance contract for a fleet of Danobat machines?
Yes, we draw up preventive maintenance programmes tailored to the criticality of this equipment, particularly relevant for precision grinding 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 Danobat range — surface, cylindrical, internal and centerless grinding 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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Danobat® is a registered trademark of Danobat S. Coop. (Danobatgroup / Mondragon Corporation). Brochexpress is neither affiliated with, nor a partner of, nor an authorised distributor of Danobat S. Coop. 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).