The regular FAEBI® element is available in many sizes and variants, depending on your application. Should you require assistance with the selection, please do not hesitate to contact us. You find your local contact person here.
Advantages compared to steel springs:
In comparison to steel springs the use of air spring offers many advantages when used for vibration insulation:
Flexible insulation system design: Changes in the static or dynamic loads can be compensated for by adjusting the air pressure. This can be performed either manually or pneumatically (e.g. using Bilz level control)
Integrated damping, therefore separate damping is not necessary.
Vertikale Eigenfrequenz= vertical natural frequency
Last = load
A large range of different bolts are available for each type of FAEBI® element. The suitable bolt in each case can be found in the following table. All bolts are delivered with standard thread. 1 bolt, 1 nut and 1 washer are supplied with the FAEBI® elements.
Item numbers of the fixing bolts
FAEBI® (-HD) Type
Length in mm
FAEBI® 125/150/200 (-HD)
FAEBI® 300 (-HD)/430 (-HD)
FAEBI® 580 (-HD)
The Bilz pressure control is the ideal addition to applications that do not need automatic level control. Instead of filling the air springs manually, they are connected to a constant compressed air supply. The working height of the individual insulators can each be individually set with one pressure regulator.
Applications with a constant centre of gravity during the production/testing process (no moving machine components, workpieces, etc., steady masses).
Difficult to access systems, where the manual checking of air pressure in the air springs is impeded.
Advantages of the FAEBI® pressure control
Simple and precise setting of the required pressure for each air spring or control group.
Manometer for continuous pressure indication
Upstream particle filter and water trap
Can be configured for any number of air springs or control groups
Mechanical-pneumatic level control MPN-LCV
The mechanical-pneumatic level control (MPN) with our robust proportional valve LVC represents a simple but effective solution for preventing skew positions resulting from load changes. A plunger continuously probes the level and the position of the plunger is transmitted to a slide valve. The air spring is either pressurized or the internal pressure is vented in accordance with the position of the plunger. The adjustable target level is maintained within an accuracy of ± 1/10 mm. In principle three control valves are used, that optionally have an upstream air maintenance unit for conditioning the pneumatic air supply, limiting the system pressure to 6 bar, removing accumulated condensate and filtering out solid particles (rust and dust).
Very robust galvanised proportional valve. Level accuracy is approximately ± 1/10 mm.
If the contact surface of the FAEBI® element (see Type series FAEBI® or FAEBI®-HD) is not completely covered by the bottom edge of the machine, then an appropriate hood is required to ensure the sufficient load distribution across the air spring. A hood will also provide protection from external damage. Material: Steel sheet (primed black) The protective hood is also available in stainless steel on request.
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