Hardinge spindle and motor spindle repair
Brochexpress is an independent workshop specialising in the repair, maintenance and diagnostics of Hardinge spindles and motor spindles — a historic American manufacturer founded in 1890 and a global reference in high-precision machining under the SUPER-PRECISION® brand.
Hardinge, the American precision reference since 1890
TLDR: Hardinge (founded in 1890 in Elmira, New York State) is one of the world's largest machine tool manufacturers, renowned for its SUPER-PRECISION® brand combining best practices in hardware and software design to produce very high-precision turning centres.
Founded in 1890 in Elmira, New York State, Hardinge has been designing, manufacturing and distributing metal-cutting machine tools renowned for their reliability and precision for more than a century. The manufacturer today covers turning, milling, grinding and workholding, with a group that also includes the Swiss brand Kellenberger, a specialist in grinding and hard turning. The SUPER-PRECISION® brand sums up the manufacturer's philosophy: a combination of best practices in hardware and software design and manufacturing, integrated into a single machine tool, to produce high-precision turning centres requiring as little human intervention as possible.
A range of very high-precision spindles, Harcrete base and pressurized bearings
TLDR: Hardinge SUPER-PRECISION® lathes feature high-precision spindles mounted on a reinforced base made of Harcrete composite material, with two-plane dynamic balancing and roundness accuracy of up to 0.000015 inch (around 0.4 µm).
Hardinge turning centres in the T SP series are built on a cast-iron (Meehanite) base reinforced with Harcrete composite, offering better torsional rigidity and superior vibration damping compared with traditional cast iron. The spindles, engineered with a collet-ready design, benefit from high-precision bearings, two-plane dynamic balancing of the spindle assembly, and hand-scraped joints for high rigidity and accuracy. On the most precise models (GT27 SP), this design achieves part roundness in the order of 0.000015 inch and continuous machining accuracy of 0.0002 inch. On vertical machining centres (VMC), the spindle typically reaches 12,000 rpm with 16.5 kW of power, in BT 40 interface.
Hardinge spindles and motor spindles covered (non-exhaustive list)
- SUPER-PRECISION® spindles for CNC lathes, T SP series
- Spindles for vertical machining centres, BT 40 interface, up to 12,000 rpm
- Spindles fitted with pressurized bearings, sliding headstock with guide bushing
- Spindles for turning-milling-grinding multitasking lathes
- Grinding machine spindles from the Kellenberger brand (Hardinge group)
Your model is not listed? Contact us for confirmation.
Interfaces and specifications
The Hardinge spindles we repair mainly come in BT 40 interface on vertical machining centres, with rotation speeds typically around 12,000 rpm and power ratings in the order of 16.5 kW, as well as in high-precision pressurized spindle configurations on lathes from the SUPER-PRECISION® range — specifications to be confirmed on quotation according to the exact reference of your machine.
Our expertise on your Hardinge spindles and motor spindles
TLDR: Brochexpress works across the entire life cycle of your Hardinge 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, two-plane dynamic balancing, the condition of the pressurized bearings, sealing and the geometry of the hand-scraped joints, with a detailed technical report
Preventive and corrective maintenance
- A maintenance programme tailored to the extreme precision requirements specific to the SUPER-PRECISION® brand, 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 Hardinge spindles and motor spindles
- An independent workshop, with no capital ties to manufacturers, guaranteeing an objective diagnosis
- Expertise in very high-precision spindles and dynamic balancing systems
- 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 from the SUPER-PRECISION® range?
Yes, we work on these spindles taking into account their specific requirements in terms of dynamic balancing and roundness accuracy.
Do you work on the pressurized spindles of sliding-headstock lathes with guide bushing?
Yes, we diagnose and repair these spindles, designed for stability and rigidity in precision machining.
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 (bearings, seals, specific components).
Can a repair affect the precision guaranteed by Hardinge on its SUPER-PRECISION® spindles?
Our overhaul process aims to restore the manufacturer's original tolerances, with particular care given to balancing and bearing clearances, which are essential on this type of spindle.
Do you offer a preventive maintenance contract for a fleet of Hardinge machines?
Yes, we draw up preventive maintenance programmes tailored to the criticality of this equipment, particularly relevant for precision 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 Hardinge range — spindles for high-precision lathes and machining centres — 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.
Request a quoteRelated services
Hardinge® and SUPER-PRECISION® are registered trademarks of Hardinge Inc. Brochexpress is neither affiliated with, nor a partner of, nor an authorised distributor of Hardinge Inc. 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).