4
Why use an Airmount isolator rather than a coil
spring or other type of isolator?
UNSURPASSED ISOLATION CAPABILITY
Airmount isolators can provide the highest degree of isolation
of any type vibration isolator. System natural frequencies as
low as 60 cycles per minute (1 Hertz) are available. The
addition of an auxiliary reservoir can provide even lower sys-
tem frequencies. In order to achieve similar results from a
conventional coil spring isolator, a real deflection of 9 inches
would be required.
CONSTANT ISOLATION EFFICIENCY
Airmount isolators are unique in that the system’s natural fre-
quency does not change significantly with changes in load.
This unique feature, combined with accurate height control, will
allow the use of the same Airmount isolator at each mounting
point of an unevenly loaded machine.
ACCURATE HEIGHT CONTROL
Airmount isolators provide accurate height control through reg-
ulation of internal air pressure. This feature eliminates the
fatigue and permanent set found in the use of other types of
vibration isolators.
WIDE SIZE RANGE
Airmount isolators are capable of isolating loads of 100
pounds per mounting point to over 100,000 pounds per
mounting point.
COMPACT INSTALLED HEIGHT
Airmount isolators can carry the loads and provide the isolation
described above at installed heights as low as 2.5 inches. Coil
springs providing equal isolation would require a free height of
5 to 25 inches.
EXTENDED EQUIPMENT LIFE
Airmount isolators extend equipment life through their superior
isolation capabilities.
EFFECTIVE NOISE REDUCTION
Airmount isolators reduce structurally transmitted noise.
Airmount isolators are also quiet in themselves, since there is
no spring chatter as found in conventional coil springs.
VERSATILE
Airmount isolators can be used not only to protect structural
members from vibrating machinery, but are also widely used
to protect delicate equipment from structurally transmitted
vibration.
PLEASE REFER TO PAGE
21
FOR A THOROUGH
DISCUSSION OF VlBRATION ISOLATION.
ADVANTAGES OF FIRESTONE
AIRMOUNT
®
ISOLATORS
