This study investigates the effectiveness of an active vibration damper in reducing rotor-induced vibrations in a laboratory setup. The experimental setup consisted of a rotor system with balancing disks, electric motors, and an active damper designed to counteract vibrations. Vibration spectra for velocity, displacement, and acceleration were recorded before and after the activation of the damper. Despite the implementation of the active damper, no significant reduction in vibration levels was observed. The root mean square (RMS) values of vibration velocity, along with absolute and relative deviations, were analyzed to assess the damper’s performance. The results indicate that the damper failed to effectively mitigate vibrations, suggesting potential issues with its design, tuning, or integration into the system. The study highlights the challenges of implementing active vibration control systems, particularly in complex mechanical systems like helicopter rotors, where vibrations occur across a wide frequency spectrum. The findings underscore the need for further research to optimize the design and control algorithms of active dampers to achieve effective vibration suppression in real-world applications.