Blade Root Contact Surface Repair
Restore worn, damaged or out-of-tolerance blade root contact surfaces with a controlled CNC milling process — onshore, offshore or with InnoMill.
Blade Solution
Trusted by wind operators and OEMs across Europe and North America
- Vestas
- Siemens Energy
- NextEra Energy
- GE Vernova
- Enercon
- Nordex
- EDF Renewables
- Welcon
- RWE
- CS Wind
- EEW
- Muehlhan
- Nicon Industries
- Orsted
- Cadeler
- Vattenfall
- Smulders
- Windar
- Titan Wind
- SubC Partner
- Semco Maritime
- LM Wind Power
- Iberdrola
How It Works Restore The Interface.
Restore The Interface.
Control The Process.
The blade root contact surface is a critical interface between the blade and the hub. Wear, damage or out-of-tolerance geometry can compromise the defined contact area and require controlled machining before the next repair or coating step.
Our CNC-controlled process machines the defined blade root contact surface to an exact, fully definable geometry — instead of relying on manual surface preparation. The repair can be established onshore, offshore or with the dedicated InnoMill machine.
How the repair works
The blade root contact surface is assessed and the required machining geometry is defined. The CNC machine is then positioned, levelled and secured before machining the contact surface to the required geometry..
After machining, the surface is measured and verified to confirm the result and prepare it for the following repair, coating process or prefabricated repair segment.
Onshore, offshore or InnoMill
- Onshore: A stable setup with blade supports, milling machine and protected working environment
- Offshore: A mobile setup adapted to vessel-deck space, access, movement and weather conditions
- InnoMill: A dedicated machine configuration adapted to the blade type and contact surface geometry
Why machine instead of manually rework
Manual surface preparation can be time consuming and operator-dependent. CNC machining provides a controlled and repeatable process, allowing the defined contact surface to be restored according to the required geometry and tolerances.
Technical Specifications
Method 3D milling, CNC controlled
Application Blade root contact surface repair
Machine setup Configured according to blade type, surface geometry and worksite
Result Exact, fully definable contact surface
ISO 9001High PrecisionOnshoreOffshore
Exact Surface Machined The defined blade root contact surface is restored by CNC machining rather than manual surface preparation.
Controlled Setup Machine position, height and level are established according to the required installation layout before machining.
Three Applications The same repair principle can be configured for onshore, offshore or dedicated InnoMill execution.
Verified Result The machined surface is measured and documented to verify the completed repair.
Talk to our team Get Expert Advice
Get Expert Advice
On Your Project.
Send us your damage report or turbine type and we'll respond within one working day with an assessment and indicative quote.
Request received.
An engineer will get back to you within one working day.
Global reach
Wherever your turbines stand
On site within days Worldwide call-out, 24/7. Technicians mobilize within days of a purchase order.
Onshore & offshore The same in-nacelle method works at sea - no offshore crane deployment needed.
Five continents A proven repair track record on wind turbines across five continents.
FAQ
Frequently asked questions
What is blade root contact surface repair?
Blade root contact surface repair is a CNC-controlled machining process used to restore a defined contact surface when it is worn, damaged or outside the required geometry.
Can the blade root contact surface be machined offshore?
Yes. The same controlled machining principle can be adapted for offshore vessel-deck execution, with the machine setup adjusted to available deck space, access and operating conditions.
Why machine the contact surface instead of preparing it manually?
CNC machining provides a controlled and repeatable process and reduces dependence on manual surface preparation. The defined area can be machined according to the required geometry and tolerances.
What determines the repair setup?
The blade type, contact surface geometry, surface condition, required tolerances, access and worksite determine the final machine configuration.
