Correa spindle and motor spindle repair
Brochexpress is an independent workshop specializing in the repair, maintenance and diagnostics of Nicolás Correa spindles and milling heads — a leading Spanish manufacturer of gantry, moving-column and fixed-bed milling machines, widely present in France in aerospace, energy and rail.
Nicolás Correa, a European leader in large-scale milling machines
TLDR: Nicolás Correa (Burgos, Spain, founded in 1947, listed on the stock exchange since 1989) is one of the European leaders in large-scale milling, with fixed-bed, moving-column, gantry and travelling-gantry ranges, and more than 900 bridge-type machines installed worldwide.
Founded in 1947 in Burgos, Nicolás Correa established itself as one of the European leaders in large-scale milling, with production concentrated in Spain and 90% exported to more than 20 countries. The manufacturer offers one of the widest milling ranges on the market — fixed bed, moving column, fixed gantry with moving table, moving gantry with fixed table and travelling-gantry configuration — for sectors demanding high material removal: energy, aerospace, rail and automotive. Correa adopted box-in-box technology very early on for the design of its rams and moving columns, with ram-extension correction systems among the most advanced on the market, as well as specific thermal regulation solutions on the vertical axis of its Fox range.
A range of 100% mechanical milling heads, renowned for their robustness
TLDR: Correa deliberately favours mechanical milling heads (including the patented UAD head) over electronically compensated solutions, with the aim of a stable geometry over time and a high chip-removal capacity on hard materials (Inconel, titanium).
Correa deliberately relies on mechanical systems rather than electronic compensation, with the aim that the machine keeps its geometry over the long term. The UAD milling head, patented by the manufacturer, illustrates this approach: fully mechanical, with no fragile internal components, it offers high accuracy and angular clamping rigidity (in the region of two hundredths of a degree over 360°) in all positions, for a torque that can exceed 1,300 Nm on the most robust configurations. Correa indexed heads keep their geometry thanks to their gear-mounting system and real-time thermal-expansion correction, which limits the need for the self-calibration cycles required on other brands. Each spindle is tested at the factory for several dozen hours before delivery.
Correa heads and spindles covered (non-exhaustive list)
- Automatic UAD mechanical milling heads, high torque
- Universal dual-orientation heads, manual or automatic (U series)
- ISO 40 angle heads mounted on the ram, with automatic changing system
- Machining centre spindles with ISO 50 and SK 40 tapers
- High-speed motor spindles with ceramic bearings, HSK 63
Interfaces and specifications
The Correa heads and spindles we repair come mainly with ISO 40, ISO 50 and SK 40 interfaces on large-scale gantry and moving-column milling machines, as well as HSK 63 on more compact machining centres fitted with high-speed motor spindles, with typical power ratings of 27 to 32 kW and torque that can exceed 600 Nm on the most robust mechanical heads.
Our expertise on your Correa spindles and milling heads
Brochexpress works across the entire life cycle of your Correa heads and spindles, with the same rigour as on the other brands in our portfolio.
On-site customer service
- Diagnostics and service directly on your machine, in your production workshop, to limit downtime linked to the removal/transport of a large head
Full diagnostics
- Inspection of clearances, balancing, bearing condition, sealing and the thermal-expansion correction systems specific to Correa indexed heads, with a detailed technical report
Preventive and corrective maintenance
- A servicing programme tailored to heavy-machining rates on hard materials (Inconel, titanium), as well as corrective work in the event of a breakdown
Overhaul and refurbishment
- Grinding, bearing replacement, reworking of the sealing and workshop rotation testing, restoring the manufacturer's original tolerances
Why choose Brochexpress for your Correa spindles and milling heads
No capital ties with manufacturers, guaranteeing an objective diagnosis
UAD mechanical heads and box-in-box architectures specific to Correa
Beaurepaire (France) and Lussery-Villars (Switzerland)
From the first intervention through to 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 the UAD mechanical milling heads?
Yes, we work on these 100% mechanical heads, taking into account their gear-mounting system and real-time thermal-expansion correction.
Do you work on the universal dual-orientation heads, whether manual or automatic?
Yes, we diagnose and repair these heads, whether they are manually controlled or automated.
What is the average lead time for a full overhaul?
Allow around 20 working days in the workshop, depending on the condition of the head and the availability of parts (bearings, seals, specific components).
Do you work directly on site for large heads?
Yes, our team travels to diagnose and, where possible, work directly on site to avoid the complete removal of bulky and heavy heads.
Do you offer a preventive maintenance contract for a fleet of Correa machines running continuously?
Yes, we set up preventive maintenance programmes tailored to your production rate, particularly relevant for workshops operating 24/7.
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 Nicolás Correa range — milling heads and spindles for large-scale machines — with the responsiveness and rigour demanded by the most exacting industrial environments: aerospace, energy and rail.
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
Correa® is a registered trademark of Nicolás Correa, S.A. Brochexpress is neither affiliated with, nor a partner of, nor an authorised distributor of Nicolás Correa, S.A. 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).