How INSIZE Helps a Leading Wind Turbine Gear Manufacturer Improve Inspection Efficiency and Accuracy
21-05-2026
The gearbox is the "heart" of a wind turbine. Even a slight deviation in bolt pre-tightening force can cause abnormal gear meshing, intensified vibration across the entire machine, and ultimately lead to shutdowns or equipment damage — resulting in losses worth millions. For leading wind turbine gear manufacturers, precise measurement of bolt pre-tightening force is a critical line of defense for product quality.
Three Devices Falling Short: Bottlenecks in the Inspection Process
A leading wind turbine gear manufacturer had previously purchased three bolt pre-tightening force measurement devices from other brands. After years of use under high-intensity production schedules, a series of critical issues gradually emerged:
● Poor measurement stability: Significant data fluctuations occurred across different workshops and temperature conditions, with poor repeatability that made inspection results unreliable as a quality benchmark.
● Time-consuming process: Inspecting a single bolt required multiple preparation steps — surface grinding, applying couplant, and attaching sensor patches — consuming over 3 minutes per bolt and severely slowing down the assembly line.
● Easily damaged probes and high maintenance costs: Probes were prone to damage, with lengthy replacement cycles and heavy maintenance burdens.
As production capacity continued to expand, the limitations of the existing inspection solution became increasingly apparent. The company urgently needed a more stable and efficient alternative. After extensive market research, they reached out to INSIZE — a trusted brand in industrial measurement — and requested an on-site demonstration.
Attach and Measure Instantly: The INSIZE UFT-Q100 Redefines the Inspection Experience
( INSIZE technology team visited the production facility with the UFT-Q100 Electromagnetic Ultrasonic Bolt Axial Force Tester)
Powered by INSIZE's core technology, the UFT-Q100 solves the challenges of traditional inspection methods:
● Zero surface preparation required: Unlike conventional devices, the UFT-Q100 uses electromagnetic ultrasonic technology to achieve true "attach-and-measure" functionality. No pre-treatment of the bolt surface is needed — even bolts with oil or light rust can be measured instantly. Simply place the probe on the bolt head, and accurate axial force data is displayed within 2 seconds.
● No initial length measurement needed: The device's unique dual-wave (transverse and longitudinal) method directly outputs the absolute axial force value without requiring prior measurement of the bolt's initial length, completely eliminating cumbersome calibration steps.
● Advanced temperature compensation: Addressing the customer's biggest concern — measurement stability — the UFT-Q100 features a built-in high-precision temperature sensor with automatic full-range temperature compensation. This ensures measurement accuracy stays within ±5% across industrial environments ranging from -20°C to 60°C.
● Enhanced reporting efficiency: The device supports one-click rapid measurement for same-specification bolts, automatic data storage, and one-click export of Excel reports and statistical charts — improving inspection report generation efficiency by 90%.
Real-World Results: Winning Over the Customer with Convenience and Precision
During a one-week on-site evaluation, INSIZE engineers conducted multiple rounds of repeated measurements across various bolt specifications commonly used in wind turbine gearboxes. The results were clear:
● Inspection time per bolt reduced from over 3 minutes to under 30 seconds — overall inspection efficiency improved by more than 70%.
● 10 repeated measurements under identical conditions showed data deviation of less than 2% — far exceeding the stability of the customer's existing equipment.
● No specialized training required — regular assembly workers can operate the device independently after just a 10-minute briefing.
After the evaluation, the head of the customer's quality department stated: "We had long been troubled by data fluctuations and complicated procedures. INSIZE's device completely solved our problems. It is greatly reducing the workload of our inspection staff — but more importantly, the data is accurate and stable, giving us far greater confidence in our product quality."
Conclusion
This collaboration not only resolved the wind turbine gear manufacturer's challenges in bolt pre-tightening force inspection, but also gained valuable experience for INSIZE in the wind power sector. With its ease operation, accurate data output, and outstanding stability, the INSIZE UFT-Q100 Electromagnetic Ultrasonic Bolt Axial Force Tester has become the ideal choice for bolt connection quality control across industries including wind power, nuclear energy, and petrochemicals.
