QCFlex Delivers Automated AI Acoustic Defect Testing
The RESONIKS QCFlex is a standalone system that integrates seamlessly anywhere in-line to detect structural defects in manufactured parts after any process. Through AI-powered acoustic testing, manufacturers can achieve a fast and reliable 100% inspection of complex parts. With its fully automated system, RESONIKS enables industry leaders to rethink their entire quality control strategy.
The core sensor technology of RESONIKS works with a state-of-the-art closed-loop system: The second generation of in-house developed microphones, MP2, has a high signal-to-noise ratio and no variation between microphones due to total microphone calibration. The MP2 enables precise recordings with a bandwidth from 20 Hz up to 80 kHz. The microphones capture each sound the RESONIKS second-generation precision hammer, SH2, induces. Attached to a highly accurate, silent SCARA Robot, the SH2 hits a test part multiple times with an adjustable impact force guaranteeing a fully reproducible impulse. Our sensor arrays capture the unique acoustic fingerprint of each part.
The generated sounds are being converted into pass/fail decisions within seconds by AI models, trained specifically for this application. “Our machine learning team applies full audit trail by design, making no decision ever a black box” highlights Fabian Oberndorfer, RESONIKS’ CTO.
The QCFlex brings acoustic testing from the lab to the production line. Robustness against vibration, temperature variations, humidity, and dust is ensured by an automated opening and closing mechanism. The automated QCFlex test bench equips any user with full flexibility due to its robotized and interchangeable fixture system, facilitating the testing of different parts within the same machine. A part size capacity of up to 800 mm and 200 kg adds to the versatility, while user-friendliness is ensured through a new UI on an intuitive touch screen. Structural defects in metal, composite, ceramic, and other rigid parts can now be detected in seconds.
Backed by RESONIKS’ premium in-house product support, covering set-up assistance, technical assistance, and maintenance, the QCFlex is designed as a scalable solution for detecting both surface and internal structural defects. “By integrating the QCFlex early in the production line, manufacturers can reduce their production costs and make their production process significantly more sustainable. This directly increases the OEE (Overall Equipment Effectiveness),” says Felix Wassmann, CEO of RESONIKS.
With the QCFlex, the 2025 VDMA startup award winner RESONIKS moves from pilot projects to a product ready for full industrial deployment. RESONIKS secured this milestone through its seed round of investment.
For more information: www.resoniks.com








