E Catalogue

BiAir ® 24 Zeiss measuring center mounted on BiAir ® BiAir ® Product Description The Air-Spring Insulator BiAir ® consists of a cast aluminum body whose air volume is enclosed by a thin-walled, flexible and pressure- resistant rolling diaphragm. The piston is seated on this diaphragm and is pushed into the air volume. This design causes highly effective vibration insulation. In order to obtain as high a dampening effect as possible, the air space is split into two chambers (load/dampening volume) linked by air pipe. By the adjustable valve the dampening can be easily changed from outside. Due to the friction caused by the air-stream passing through the bypass valve, up to 20% dampening can be effected. Additional safety valves will protect the roller diaphragm from getting damaged by over-inflation. Range of Application Highly effective vibration insulation of sensitive measuring and testing machines, fine-machining plant, as well as optical and electronic equipment. Another important range of application is the vibration- insulated foundation of vehicle, motor and other performance testers. BiAir ® Air-Spring insulators are extremely well suited for the insulation of foundations e.g. equivalent machine loads. Control circuit The circuit consists of at least three air springs. If more air springs are needed for structural or loading reasons, the system must always include 3 position pickups, e.g. three controlled components in order to avoid statical overdefinition. This is achieved by connecting sets of air springs in parallel. before after BILZ level controller systems Level control is an important part of an optimally functioning air spring system. The automatic level controller can be utilized to overcome the problem associated with load changes in air-spring insulated machines, which can result in tilting of the machine. The height of the specific elements BiAir ® or FAEBI ® can be controlled by changing the air pressure in the air-spring insulators. Quick inflation or deflation will hold the machines level even if their center of gravity keeps changing. BiAir ® 0,15-ED Load (daN) natural frequency (Hz) – vertical – BiAir ® 0,25-ED Load (daN) natural frequency (Hz) – vertical – BiAir ® 0,5-ED Load (daN) natural frequency (Hz) – vertical – BiAir ® 1-ED 1-ED/HE Load (daN) natural frequency (Hz) – vertical – 20 40 60 80 100 2,0 2,2 2,4 2,6 2,8 40 65 90 115 140 2,0 2,2 2,4 2,6 2,8 100 160 220 280 340 2,0 2,2 2,4 2,6 2,8 200 400 600 800 1000 1,2 1,65 2,1 2,55 3,0 Advantages compared with conventional steel springs BiAir ® Air-Spring insulators with level control are an active system. The machine/foundation level retention will always be preserved! Automatic leveling/adjustment!