Low Center of Gravity Vibraisolation Bench

Low Center of Gravity Vibration Isolation Bench and customized machine stands lower the center of gravity of the system, thus increasing the stability of the air-float vibration dampening system.

An important requirement for proper use of air-float shock absorbers is to place the shock absorber under the equipment to be damped. In the design of the system, the elastic plane of the damper should be as close as possible to the payload load and the center of gravity of its supporting structure.

When the effective load vibrates in the horizontal direction with its center of gravity higher than the elastic plane of the damping system, a swaying phenomenon will occur. If the center of gravity is much higher than the elastic plane, the whole system will be unstable. The placement of air-bearing dampers must meet the requirements of a stable system.

The use of a cradle-type platform allows the shock absorber to be placed closer to the center of gravity, which in turn reduces the swaying phenomenon. Cradle platforms can be used when the bottom of the machine cannot be modified to accommodate the shock absorber and for systems that require a rigid support frame.

The structural and dynamic design of the cradle platform is very important. When using PAL or PLM dampers, controlling the pressure and deformation caused by the weight of the machine itself and the dynamic stiffness is an integral part of a successful solution.