• Sucks cold external air into the greenhouse and removes internal hot air, or compresses cold air and internal circulation.
  • Central hub and v-belt pulley are made from die-cast aluminum, with reinforced ribs for a prolonged lifetime
  • Reduced stress on motor bearings
  • Class A motor featuring excellent
  • Efficiency and low energy consumption
  • Each motor is individually tested for 100% quality control
  • Fan housing and venturi made of strong galvanized sheet-steel
  • Welded wire guards designed for easy maintenance fitted with noise reduction support
  • The propeller is statically and dynamically balanced
  • Shutters are made of pressed galvanized steel in order to ensure the highest strength
  • Shutter bearings are maintenance free
  • The patented centrifugal system permits an energy efficient solution
  • Dust-safe opening and closing
  • Powerful springs keep shutters firmly closed when the fan is not operating
  • Every fan is individually checked for quality