Back to top
acebron energiarenobable titulo

Onshore Wind Power


We create the parts
that make the world spin around in the most sustainable way

The energy of the future

Our team has the knowledge, resources and experience of over 20 years as a leading supplier to the wind industry to provide you with virtually every wind turbine component. Including both new part manufacture and refurbishment and repair.

In addition, we are approved by the industry’s leading technologists and utilities for whom we supply, refurbish and manufacture the most critical wind turbine components.


+ Manufacture and supply of new components
+ Repairs, Refurbishment and Maintenance
+Surface treatment: metallising, blasting, painting
+ Welding, metal sheet working, special weld overlays
+ Mechanical assembly and disassembly


acebron energiarenobable uno
+ Machining
+ Reverse engineering
+ 3D Measurement
+ Inspection Services



Our work in numbers

Numbers speak louder than words and ACEBRON GROUP is leading the green transformation by supporting its clients as a strategic partner for a more efficient and sustainable world

Mw of renewable energy installed worldwide by our customers with shafts manufactured by ACEBRON GROUP
CO2 emission savings on parts repaired by ACEBRON GROUP compared to the manufacture of new parts
Components supplied and/or repaired since 2002
Renewable energy homes with components repaired by us


We give components a second life


At ACEBRON GROUP we have more than 20 years of proven experience in repairs for the energy and industrial sector. Especially in wind turbine equipment. In addition, our technical team and state-of-the-art machinery allow us to carry out repairs, refurbishments and maintenance both in our own facilities and in the customer’s facilities.

In a repair, some parts can sometimes be reused but others have to be rejected because it is not possible to repair them due to damage to the part. This component is scrapped and if possible, reverse engineered to manufacture a new one. This component that cannot be reused, such as a wind shaft, is recycled with an authorised manager and given a new life by re-melting the material to manufacture other components.

As a result, we are part of the sustainable supply chain of leading technologists and utilities. 

  • Gearbox repair, refurbishment and retrofit: ACEBRON GROUP specialises in the repair, refurbishment and supply of the main gearbox components (gearbox housing, covers, planetary gearboxes, crown gears, bearings, bushings, quick shaft, pitch system, oil divider…).
  • Repair and rehabilitation of the main components of the nacelle: main shafts, bushings, frames and extensions.
  • Complete overhaul of nacelles


+ Disassembly
+ 3D Dimensional control
+ Reverse engineering
+ Machining
+ Verification, packaging and transport
+ Cleaning, inspection, NDT and status report with repair proposal
+ Surface treatment: sandblasting, metallisation, painting
+ Supply of damaged components and commercial elements
+ Assembly and adjustment
+ Quality report


Why we are your reference partner

Our clients, our best prescribers

We have been working for the wind energy sector since 2001, when we started to supply in series the main components of the wind turbine (shafts, bushings, frames, bearings, gearbox housings…) for the most important technologists in the sector. Since then, we have been gaining more and more experience in the field of repairs and refurbishment, which is today one of our main areas of activity.

We have become a trusted partner for the main players in the wind energy sector, both technologists and utilities, who rely on us for our commitment to quality, our reliability, flexibility and ability to adapt to their needs.

testimonials quote pattern

"We have been collaborating with Acebrón Group (MECACE) for more than 5 years. We started machining parts of a single machine model and today they collaborate with us repairing parts of all our fleet models. Undoubtedly they have collaborated in our growth, thanks to a close collaboration with their wonderful team, providing support and innovative solutions, as well as availability before our emergencies, with great professionalism and efficiency. Undoubtedly a key supplier in our process."

Raquel Sánchez-Beato
Logistic & External repair specialist. - GE Renewable Energy

"We trust Acebron Group for the rehabilitation and manufacturing projects in our hydroelectric plants, due to the quality and precision of the parts and equipment they supply, as well as their seriousness and commitment to delivery times. We like to collaborate with companies like them, that have high quality standards but never lose the warmth and the humane touch. They combine the most advanced technology with a high responsibility for the environment and that for us is fundamental. Reliability, responsibility and professionalism are the adjectives that best describe Acebron Group."

Borja González
Head of Technical Service Cuenca del Duero.

"We trust Acebron Group as a strategic collaborator for the repairs of gearboxes and other components of the nacelle for more than 12 years. During all this time, they have proven to be a and reliable supplier with a great capacity, reliability and flexibility to adapt to our production needs."

Rubén Carranza
Plant Manager at Sigueiro and Head of Business Overhaul at Gamesa.

Repair and Mainteinance

Repair and refurbishment of wind turbine components significantly reduces CO2 emissions: sustainability at the core of ACEBRON GROUP

We repair and refurbish components so that we can reuse up to 70% of the materials compared to a new item. According to industry studies, a reconditioned wind turbine component saves on average 45% of CO2 emissions compared to a new part.

The reconditioned components are not only sustainable, but also meet the highest quality specifications by complying with technical and quality standards to operate as new components, in some cases performing retrofits that even improve their initial characteristics.
We are proud to contribute with our work to create a more sustainable and renewable world by specialising in the repair of renewable energy components and pursuing a policy of Reduce, Reuse and Renew.

acebron energiarenobable 1

Components and Spare Parts

Our extensive and diverse machinery allows us to undertake the manufacture of practically all the mechanical components of the wind turbine.

ACEBRON GROUP has more than 20 years of experience in machining, surface treatment and welding of critical components of the nacelle.

We can supply single components, spare parts or batch production of serial parts.

These are some of the components that we have supplied in short and medium series or as Spare Parts to the main technologists and utilities in which we have carried out the machining, surface treatment, and in some cases mechanically welded manufacturing:

acebron energiarenobable 2
+ Main axles
+ Front and rear frames
+ Bushings
+ Bearings
+ Brake discs
+ Extension cables
+ Generator housings
+ Multiplier housings
+ Covers
+ Slewing rings
+ Pitch star
+ Tower sections joint flanges
+ Shrink rings
+ Transport tooling
+ Coupling plates
+ Planetary
+ Shovel moulds
+ Lifting tools

Quality Control

Our compromise is to always deliver on time meeting the needs and expectations of our clients with the highest quality as possible. 

We are aware of the high quality requirements of the sector and that is why we work under very demanding quality standards in terms of tolerances and precision. In order to meet them, during our manufacturing process we have acclimatised workshops to work with controlled temperature and CNC machines.

We have all the high-precision measuring tools necessary to guarantee the measurements of the machined parts:

  • Vantage Laser Tracker
  • Three-dimensional
  • Adjustment Bench

Our quality system and manufacturing process are certified with EN 1090-1: 2009 + A1: 2011 EXC3 and EN ISO 3834-2: 2006, and has FROSIO (Norsok 501) certified painters, meeting the highest manufacturing standards.

Industry 4.0

At ACEBRON GROUP we are committed to Industry 4.0 and to the complete digitalisation of the value chain.

Our 4 factories and all our machining equipment are connected to the production engineering department via industrial communications software.


We can send programs directly from the CAM department to all machines, improving productivity and increasing the reliability of the different processes. Through our virtual machines we are able to generate a simulation of the machining process, thus improving the efficiency, times and quality of our procedures.


We use these programmes and systems to machine complex and large components such as gearbox housings or bushings, ensuring precision and compliance with the necessary tolerances and geometries.


We also make use of Industry 4.0 tools to reverse engineer components through which we can proceed to the creation of new parts from used parts.




Do you want to know about our projects?

Have a look at our accomplishments.


Request for offer

    Request for offer

    I agree to receive commercial communications from Acebron Group

    Acebron Group Logo

    Área privada

    Follow us
    Right Menu Icon