Blade Root Bushing Replacement
Replace fatigued root bushings without removing or scrapping the blade.
Blade Solution
M30 & M36 Bushing solutions verified
TNO + Fraunhofer Independent fatigue testing
UL Assessment statement issued
On site No blade transport required
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 Bushing Replacement.
Bushing Replacement.
Without Scrapping The Blade.
Failed or fatigued blade root bushings used to mean scrapping the blade. Our CNC-controlled bushing replacement removes the old bushings and installs new ones on site - the blade is reused, not replaced.
How the repair works
A machine powered by Siemens CNC technology mounts directly on the blade root and mills out the worn bushings with very high precision. The same machine can reface damaged flange ends. New repair bushings and infusion technology, delivered by our partner We4Ce, complete the installation.
Built for the blade
- Fully automatic and semi-automatic machine variants - installed directly on the blade and easy to operate
- The repair runs on site - no blade transport, no disturbance of ongoing production
- Addresses loose bushings, jammed or broken bolts and damaged flange ends
M30 & M36bushing solutions verified
TNO + Fraunhoferultimate and fatigue testing
ULassessment statement issued
A verified alternative to blade replacement
Test coupons have gone through extensive ultimate and fatigue testing at the TNO and Fraunhofer test institutes. UL's assessment indicates the repair concept can achieve higher pull-out strength than the original bushing and a lifetime sufficient for - or exceeding - the 20-year turbine design life, depending on site-specific conditions.
Technical Specifications
Machine control Siemens CNC
Machine variants Fully & semi-automatic
Verified bushing sizes M30, M36
Independent testing TNO & Fraunhofer
Assessment UL (IEC 61400-22)
Repair location On site, directly on the blade
UL AssessedTNO TestedFraunhofer TestedSiemens CNC
Reuse, Not Replace The blade stays in service. Old bushings are removed and new ones installed without scrapping the blade.
Reduced Downtime On-site repair with no blade transport and no disturbance of ongoing production.
Verified Results A fast and proven process, verified through independent ultimate and fatigue testing.
High Precision Fully CNC-controlled bushing removal and flange facing with very high precision.
Talk to our team Get expert advice
Get expert advice
on your project.
Send us your damage report or turbine type and we will 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
Can blade root bushings be replaced without scrapping the blade?
Yes. The old bushings are milled out and new ones installed directly on the blade, on site. The blade is reused instead of being replaced.
How is the bushing repair verified?
Test coupons have gone through extensive ultimate and fatigue testing at the TNO and Fraunhofer test institutes, and UL has issued an assessment statement for the repair concept. The M30 and M36 solutions have been verified.
What blade root damage can be repaired?
Loose bushings, jammed or broken bolts and damaged flange ends. The machine can also perform flange facing with very high precision.
Does the blade have to be transported to a workshop?
No. The machine is installed directly on the blade and the repair is performed on site, without disturbing ongoing production at the park.
