For a 150 kg load on a DT 406 with ( d_s = 0.005 ) m (5 mm), ( f_n \approx 7 ) Hz. If the machine runs at 30 Hz (1800 RPM), isolation exceeds 90%.
Generators up to 100 kVA often employ DT 406 mounts directly under the engine-generator subframe to reduce both vibration and the onset of metal fatigue. mount with dt 406