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Product description

Axial, high-temperature, medium-pressure fans designed for the high-temperature drying process in installations where high dust and larger elements of solids contained in the flowing air can damage the motor. The fan bodies, hot-dip galvanised, are fitted with a chamber that effectively isolates the motor from the air stream. They are ideally suited for use in modern grain dryers where emphasis is placed on high drying parameters with a recuperation process. Designed for continuous operation at high temperatures, i.e. up to + 105°C.

  • Standard diameter range: Ø800 – Ø1000mm
  • Capacity range: 20000 – 50400m3/h
  • Operating temperatures: -20 to +55°C
  • Installed motor powers: 5.5 – 22.0 kW
  • Motor speeds: 1500 min-1
  • Motors fitted with maintenance-free bearings
  • Motors adapted as standard for speed control by a frequency converter
  • Steel housings
  • Corrosion-protected housing – hot-dip galvanised

Optional executions

  • High-temperature temp. max: 135°C (WOHT)
  • Enclosure made of stainless steel
  • Flow parameters other than standard






  • Perfectly round, machined from structural steel sheet. Equipped on both sides with flanges rolled from the casing shell with connection openings
  • Equipped with a separate motor compartment
  • Equipped with a rear guide
  • Protected against corrosion by hot-dip galvanising

Housing optional:

  • Corrosion protection by powder coating
  • Housing made of stainless steel, grade 1.4301
  • Inspection hatch
  • 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 or cast iron motor body

Motor optional execution:

  • Supply voltage: 440V, 460V
  • Supply frequency: 60Hz
  • Efficiency class: IE 4
  • Motor insulation class: H
  • Degree of protection: IP 56, IP66,
  • Winding temperature sensors


  • Blades and hub made of die-cast aluminium
  • High-performance blades with special sickle shape for lower noise levels
  • Lower energy consumption while maintaining high pressures
  • Dynamically balanced to class G-6.3 according to ISO 1940-1