ZÖLLNER Makrofons are diaphragm sound transmitters operating on compressed air.
For decades ZÖLLNER Makrofons have proven their reliability worldwide.

  

 
  

STRONG POINTS

  • high quality material and workmanship
  • made in Germany
  • corrosion-resistant
  • made entirely of fire resistant material:
    • housing - brass
    • horn – steel (or acc. to customer’s request copper)
  • simple, but well-engineered construction
  • durable
  • virtually maintenance-free
  • low life cycle costs
  • economic air consumption
  • temperature range: -25 °C to +70 °C
  • broad frequency spectrum with many strong overtones
  • according to UIC 644 standard frequencies 370 +/- 10 Hz and 660 Hz +/- 15 Hz
  • sound pressure level 120 -125 dB(A) at a 5 m range in front of the horn
  • other frequencies available, such as 220, 311, 440 or 808 Hz for other applications
  • accessories:
    • flange heating
    • protective grid or net valves
    • air filter
  • assistance with soundproofing
    solutions