Flange Management B.V. performs on-site ultrasonic bolt inspections for wind turbines, ensuring that critical connections maintain their designed preload and integrity throughout the asset’s lifetime.

Using portable ultrasonic equipment, our specialists measure the actual tension inside each bolt without the need for disassembly.
This provides precise, repeatable data on the condition of tower, hub, and foundation connections — both onshore and offshore.

During inspections, we detect preload loss, uneven loading, or relaxation caused by vibration and cyclic loads.
Our measurements help turbine owners and service teams verify installation quality, perform end-of-warranty assessments, and support life-extension programs with real data.

All inspection results are securely stored and visualized in our FlangeUp® software, giving engineers instant insight into bolt condition and performance trends.
This enables smarter maintenance decisions, reduced offshore interventions, and improved turbine availability.

Result: verified bolt integrity, fewer unscheduled repairs, and safer long-term operation of wind assets.