Typical Uses: to deliver a concrete mass, for base-mounted centrifugal pumps, that forestalls differential motion involving driving and driven users, linked by a flex travel; to decrease the huge vibration amplitude (unbalanced forces) located in air compressors and vacuum pumps; to lessen the middle of gravity of tall, slim units; https://edgarwqlew.ageeksblog.com/38058949/the-2-minute-rule-for-concrete-filled-inertia-base-for-vibration-isolation