D-J

Product:
The base to be type WF (Spring Mounted Inertia Bases – Steel), as manufactured by Mason UK Ltd.
Anti-vibration mounting to be type SLR (Restrained Spring Mounts) or SLRSO (Restrained Seismic Open Spring Mounts), as manufactured by Mason UK Ltd.

Performance:
All perimeter members shall be steel beams with a minimum depth equal to 1/10 of the longest dimension of the base.
Mounting must have a minimum static deflection/compression of [VARIABLE DEFLECTION] under the operating load.

Geometry:
The ratio of the Spring diameter by the compressed spring height cannot be less than 0.8.
Springs to have a minimum additional overload capacity of 50% of the rated deflection/compression before becoming solid.

Housing:
Spring coil to be restrained in housing and colour coded.
Mount to include a 6 mm neoprene acoustical friction pad between the base plate and the support.

Installation:
All mountings need to have levelling bolts that must be rigidly bolted to the equipment or metal frame.
When installed, all operating heights must be equal.