versions of website:

Product description

Axial fans with impellers fitted with hubs that allow the blade angle to be changed smoothly during fan operation. The impellers are additionally equipped with special low-noise blades, which is a definite advantage in an open discharge system. They generate a lower noise level. By changing the blade angle, the fan performance is adjusted. Weather-resistant.

  • Standard diameter range: Ø800 – 1000mm
  • Capacity range: 20000 – 52000m3/h
  • Operating temperatures: -20 to +55°C
  • Installed motor powers: 2.2 – 5.5kW
  • Motor speeds: 1000 min-1
  • Motors fitted with maintenance-free bearings
  • Motors adapted to speed control by means of a frequency converter as standard
  • Steel housings
  • Corrosion-protected housing – powder-coated
  • Outlet protected with protective mesh

Optional executions

  • High-temperature temp. max: 85°C
  • Casing made of stainless sheet
  • Flow parameters other than standard






  • Machined from structural sheet steel Fitted with a flange and inlet confuser rolled from the casing shell, having connection holes
  • Equipped with bolted or welded motor shelf
  • Protected against corrosion by powder coating. Painted in colour: RAL 9005 (black)

Housing optional:

  • Corrosion protection by hot-dip galvanising
  • Housing made of stainless steel, grade 1.4301
  • Aluminium enclosure
  • Painted in another RAL colour


  • Asynchronous 3 phase
  • Supply voltage: 3~ 230/400V; 400/690V
  • Efficiency class : IE3
  • Insulation class: F
  • Degree of protection: IP 55
  • Cast aluminium motor housing

Motor optional execution:

  • Supply voltage: 440V, 460V, Supply frequency: 60Hz
  • Efficiency class: IE4
  • Motor insulation class: H
  • Degree of protection: IP 56, IP66
  • Winding temperature sensors


  • Blades made of composite, hub made of die-cast aluminium
  • High flow capacity in the low pressure range
  • Dynamically balanced to class G-6.3 according to ISO 1940-1