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BiAir® Membrane Air Spring Isolator, Low profile with Baseplate version

BiAir® Membrane Air Spring Isolator, Low profile with Baseplate version

BiAir® Air Spring Versions

There are several versions of the BiAir® Membrane Air Spring Isolator with Low Profile and Baseplate available.  These versions include:

  1. Model BiAir #-ED-ST is a low profile (≤100mm) version with baseplate, and steel construction with electroless nickel plating.  Available with an optional safety valve to prevent over pressurization of the membrane.
  2. Model BiAir #-ED-ST-LT is a low profile (≤100mm) version with baseplate, steel construction with electroless nickel plating, and limited travel.
  3. Model BiAir #-ED-AL is a low profile (≤100mm) version with baseplate, and anodized aluminum construction.  Available with an optional safety valve to prevent over pressurization of the membrane.
  4. Model BiAir #-ED-AL-LT is a low profile (≤100mm) version with baseplate, anodized aluminum construction, and limited travel.

Note: Air springs with higher load capacities or without a baseplate are also available.

Range of Applications
Highly effective isolation of vibration for sensitive measurement and testing equipment, precise finishing machines, laser equipment and optical and electronic instruments.  The models BiAir #-ED-ST and BiAir #-ED-ST-LT with their steel construction and electroless nickel plating are perfect for Cleanroom applications.  BiAir® models with or without the limited travel option are commonly installed on vibration isolated tables, models: LTH and LTO.

Bilz Leveling Systems
Typically all BiAir® air spring applications require a level control system to operate properly.  A leveling system provides an important contribution toward the optimal function of an air spring system. If a change in the Center of Gravity (COG) is likely to occur on the equipment mounted on top of an air spring system, such that one of the springs will compress resulting in the equipment on top of the air springs is inclined, a leveling system might be the only solution available to maintain the levelness of equipment on top of the air spring system.  The change in air pressure in the air spring isolators adjusts the height of the individual air springs (BiAir® or FAEBI®).  By quickly pressurizing or de-pressurizing the air springs, the proper levelness of the work surface can be maintained despite variations in the position of the load on the work surface.  Bilz offers two models of level control systems both with variations: PVM and LCV.

Control System
Each level control system consists of at least three control groups and each control group will consist of one or more air spring isolators.  Even if several isolators are required for design or load reasons, three control groups are necessary in order to avoid a statically indeterminate system.  When multiple air springs are grouped together they are controlled in parallel.

 BiAir Low Profile with Baseplate

ModelAWØ CH - Operating HeightMax. Load at 58 psi internal pressureMax. Load at 87 psi internal pressure Natural Frequency (Hz), Vertical approximately Natural Frequency (Hz), Horizontal approximately
BiAir 0.15-ED2.99"2.99"2.83"3.03"150 lb-f225 lb-f2.5 Hz2.5 Hz
BiAir 0.25-ED4.33"7.17"4.33"3.43"255 lb-f380 lb-f2.5 Hz2.5 Hz
BiAir 0.5-ED5.12"7.48"5.08"3.94"600 lb-f900 lb-f2.5 Hz2.5 Hz
BiAir 1-ED7.87"10.83"7.87"3.94"1425 lb-f2135 lb-f2.5 Hz2.5 Hz
BiAir 2-ED10.24"13.78"10.24"3.94"3195 lb-f4790 lb-f2.5 Hz2.5 Hz
BiAir 2.5-ED11.81"15.35"11.81"3.94"4420 lb-f6630 lb-f2.5 Hz2.5 Hz
Limited Travel Version
BiAir 0.15-ED-LT2.99"2.99"2.83"3.03"150 lb-f225 lb-f2.5 Hz2.5 Hz
BiAir 0.25-ED-LT4.33"7.17"4.33"3.43"255 lb-f380 lb-f2.5 Hz2.5 Hz
BiAir 0.5-ED-LT5.12"7.48"5.08"3.94"600 lb-f900 lb-f2.5 Hz2.5 Hz
BiAir 1-ED-LT7.87"10.83"7.87"3.94"1425 lb-f2135 lb-f2.5 Hz2.5 Hz

ModelA (mm)W (mm)Ø C (mm)H - Operating Height (mm)Max. Load at 4 bar internal pressureMax. Load lb-f at 6 bar internal pressure Natural Dynamic Vertical Frequency, approximately Natural Dynamic Horizontal Frequency, approximately
BiAir 0.15-ED7676727767010002.52.5
BiAir 0.25-ED11018211087113017002.52.5
BiAir 0.5-ED130190129100267040002.52.5
BiAir 1-ED200275200100633095002.52.5
BiAir 2-ED26035026010014 22021 3002.52.5
BiAir 2.5-ED30039030010019 67029 5002.52.5
Limited Travel Version
BiAir 0.15-ED-LT7676727767010002.52.5
BiAir 0.25-ED-LT11018211087113017002.52.5
BiAir 0.5-ED-LT130190129100267040002.52.5
BiAir 1-ED-LT200275200100633095002.52.5
 


Can Be Used With



  • bilz-lth-granite-table
  • bilz-lth-optical-table
  • bilz-pvm-valve
  • bilz-vibration-analysis
  • bilz-vitap-bc
  • bilz-vitap-bm

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