The VIP320X1218-130300 vibration isolation platform is 12 x 18 inch with a payload range of 130 lb (59 kg) to 300 lb (136 kg). It is ideal for precision applications that don't require pneumatic isolation. Featuring passive mechanical isolators that are compact and maintenance-free, the VIP320X platforms are an affordable and effective solution for vibration sensitive instruments.
The patented mechanical isolation technology features six degree of freedom isolator design to work within a defined range of weight under which the isolators deflect or compress. The amount of deflection is a function of the payload on each isolator. Vertical and horizontal vibration is effectively attenuated and your precision application is isolated from the vibration. It is a great alternative solution for applications that are not suitable for pneumatic isolation.
Superior isolation effect in the VIB320X isolators is achieved by combined action of vertical spring and horizontal rollers. The balls are displaced between the parabolic shaped raceways due to micro-vibration and restored to the neutral position by gravity, acting akin to a pendulum. Horizontal deformation of the spring provides additional flexibility, thus leading to low natural frequency (as low as 3.25 Hz) and therefore excellent isolation of horizontal vibration. Isolation of vertical vibration is achieved by specially designed variable-pitch spring. When the load supported by isolators increases, the coils with smaller pitch settle on each other first, thereby reducing the effective number of active coils and increasing the stiffness of the spring. This way the stiffness of the spring increases by the same proportion as the supported mass, which leads to a constant natural frequency over the load range. This CNF (constant natural frequency) property leads to better overall isolation in multi-support spatial systems.
Each of the VIBe™ isolators in the platform needs to be properly loaded in order to achieve maximized vibration isolation performance. A special gap tool is shipped with the platform to verify the proper loading of the isolators. This gap tool measures 0.56 inch wide by 0.1 inch thick and it is used to determine that the gap in the isolator is more than 0.1 inch but less than 0.56 inch. If the gap is larger than 0.56 inch, the bearing does not have enough weight on it. Conversely, if the gap is smaller than 0.1 inch, it is overloaded.
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