Rubber air springs for highly effective isolation of vibrations, shocks and structure borne noise for machines, apparatus and aggregates.
Rubber air springs for highly effective isolation of vibrations, shocks and structure borne noise for machines, apparatus and aggregates in outdoor areas.
Rubber air springs for highly effective isolation of vibrations, shocks and structure borne noise for machines, apparatus and aggregates with adjustable damping.
Low-frequency (vertical from 2.5 Hz) membrane air spring with precisely adjustable damping level for effective vibration isolation. Made of anodised aluminium especially for high demands on material properties.
Low-frequency (vertical 2.5 Hz) membrane air spring with precisely adjustable damping level for effective vibration isolation. Made of cast aluminium, universally applicable.
Very low-frequency (vertical 1.7 Hz) membrane air spring with precisely adjustable degree of damping for effective vibration isolation. Made of cast aluminium, universally applicable.
Low-frequency (vertical 1.2 Hz) membrane air spring with precisely adjustable degree of damping for effective vibration isolation. Made of cast aluminium, universally applicable.
The use of Bilz BiAir® air spring isolators with active level control maintains the correct level of machines or foundations. The level control and adjustment is entirely automatic.
The pressure in the air springs is appropriately adjusted by pressurising or venting in response to load changes. This keeps the isolating effect constant in all events.
Unlike steel springs air springs do not transmit structure borne sound.
FAEBI® rubber air springs are used for the highly effective insulation of machines, apparatus and aggregates from shocks, vibrations and structure borne noise. The element comprises of a bellshaped rubber form made from high-grade elastomer.
The constructive design enables highly effective vertical vibration isolation without the disadvantage of large horizontal deflection. Overloading of the element due to a sudden pressure drop is virtually impossible.
On request, the system is also available with mechanical or electronic level control (see “Accessories” section). The base plate is equipped with an anti-slip plate to eliminate the need for floor anchoring. The FAEBI® rubber air spring is also available in a stainless steel version for use in outdoor areas (e.g. air-conditioning technology).
Perfectly suited for source insulation of fast running presses, forging hammers and other machines and aggregates with highly dynamic disturbance forces. Passive isolation of measuring and test equipment as well as highly accurate machine tools.
The natural frequency of the rubber air spring in the vertical direction is between 3 and 14 Hz depending on the static load. The maximum spring deflection in response to a pulse load is up to 15 mm depending on the type and size of the air spring.
FAEBI® elements can be equipped with an air pressure control on request. The air pressure monitor will indicate if the air pressure falls below the required setpoint.
The level control is a significant component to ensure the optimal function of an air spring system. The level control can correct load changes that cause undesired deflection of the air elements or inclination of the machine in a machine or system equipped with air springs.
With our BiAir® air spring isolator, the air volume is enclosed by a thin-walled, flexible and pressure-resistant rolling membrane. The piston sits on the membrane and is pressed into place by the air volume.
This design allows for highly effective vibration isolation.
For highly effective receiver isolation of measuring and testing machines, inspection and production machines in the semiconductor industry, optical and electronic devices, laser systems, precision machining machines, as well as vehicle, engine and gearbox test benches etc.
In order to simultaneously achieve the highest degree of damping possible, the air space is divided into two chambers (load/damping volume) connected by a bypass. An adjustable throttle valve is used from the outside to set the flow cross-section in the connecting line of the bypass to the desired damping. A degree of damping of up to 15% is possible.
Schematic illustration of the elements structure of a membrane air spring
