Isolated Foundations

Farrat boasts significant experience in the specification and supply of specialised isolated foundation systems.

Farrat Isolated Foundation Systems can be formed from: Isomat, VIDAM, Favim or Coil Spring and Visco-elastic Dampers depending on the machine or structure to be isolated.

Farrat Isolated Foundation Systems can be formed from: Isomat, VIDAM, Favim or Coil Spring and Visco-elastic Dampers. If provided with the nature of the requirement or the expected requirement, Farrat can provide technical / design advice and develop appropriate solutions including full specifications, predicted natural frequencies, damping ratios, layout drawings and installation instructions etc. If necessary site installation or supervision can be provided.

Applications

Isomat Isolated Foundation for power press

Isomat Isolated Foundation for roll grinding machine

FSL coil spring isolators for diesel engine test rig

FAVIM Isolated Foundation for Power Press in Dubai

94 meter long Isomat Isolated Foundation for newspaper printing press

Newspaper printing press on 94 meter long Isomat Isolated Foundation

Isomat Isolated Foundation for power press

Two Storey Test Building Isolated with Farrat Structural Bearings & LVI Lateral Isolation

Isomat Isolated Foundation for roll grinding machine

Isolated foundations are used to provide effective, low frequency isolation of machinery and equipment. They are used extensively in industrial applications either as Active Isolation to prevent noisy, vibration emitting equipment (power presses, printing presses etc) from disturbing their surroundings or as Passive Isolation to prevent sensitive equipment (body co-ordinate measuring machines, dynamometers etc) from being disturbed by structureborne vibration.

Reasons for using isolated foundations

Increasing machine frame stiffness to maintain alignment during changes in applied static and dynamic loads.
Minimising changes in level due to alterations in static load distribution.
Increasing inertia mass of the machine and reducing vibration through mass damping.
Inertia blocks are usually 3 to 5 times the mass of the machine.
Lowering the centre of gravity to improve stability.
Distributing static and dynamic loads over a greater ground area.
Isolating low frequency of shock and vibration using more elastic vibration isolators than could be used between machine and foundation.
Low frequency disturbing vibration requires low frequency, high deflection vibration isolators. On machinery requiring low operating motion amplitudes an isolated foundation is essential if low frequency vibration isolation is required.

We welcome any enquiries for our Isolated Foundations, from concept design stage to final procurement.

To effectively process an enquiry we ask for the following information on the machine / structure to be isolated:

Type & make
Length & Width
Length, Width & Depth of proposed foundation pit / inertia block
Static Wet Mass
Mass of any workpiece components, tooling or general live loads in addition to the Static Wet Mass
Previously determined natural frequency required by the isolated foundation system
Type & grade of any pre specified vibration isolation system / materials
Any relevant drawings of the installation, layout and machine / structure to be isolated
Location of the installation

If it is an impact machine:

Number of blows per minute
Maximum blow energy (in Joules)

If it is a rotating machine:

Principle rpm (revs / minute) – Max & Min

If it is a fan / pump / turbine etc:

Principle rpm (revs / minute) – Max & Min
No of blades

Farrat

VIBRATION, ACOUSTIC & SHOCK ISOLATION

Isolated Foundations

Applications

Reasons for using isolated foundations

Elastomeric

Coil Spring & Damper

Project Examples

Isolated foundation theory