In certain applications, it is not desirable or feasible to mount a machine directly on vibration isolators.
Direct installation of vibration isolators on a machine whose frame/bed stiffness is inadequate for such, can cause bending, relative displacement and other problems, even when the floor is sufficiently rigid. For smaller machines, this can be remedied by securing the frame/bed to a rigid plate and then installing the isolators between the plate and the floor. For larger machines, the frame/bed is attached to a properly designed concrete foundation, which is then supported on the appropriate isolators for the application.
Fabreeka designs and manufactures large capacity pneumatic and air bag isolators, which support loads from 13,000 lbs (5,800 kg) to 120,000 lbs (54,000 kg) each for foundation isolation applications requiring low frequency vibration isolation. Air bag isolators provide a larger dynamic stroke than our standard PAL isolators and are used in applications where a low natural frequency (0.5 – 1.5 Hz) and large displacements must co-exist.