Selection program


Roof fan-CTHB/CTHT

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This selection program is provided in cooperation with Venture Industries.


Exhaust air from warehouses, shop and industrial halls, farm buildings, etc. Due to its high temperature resistance, it is particularly recommended as an extractor for grates, eaves in the meat industry and gastronomy. Fans with vertical discharge are particularly recommended for the extraction of water vapour and mist with grease contamination. Models 140, 180, 200 and 225 are recommended for extracting smoke from chimneys.

Roof fan for continuous operation at high temperatures

  • CTHB / T 140/180/200/225 from -40 ° C to 200 ° C.
  • CTVB / T 140/180/200/225 from -40 ° C to 200 ° C.

The other models are designed for continuous operation at temperatures up to 120 ° C. The fans are certified according to PN-EN 12101-3, class F400 ° C / 2h (except for models 140.180.200).


Housing made of aluminium sheet, base made of galvanised sheet steel. The rotor is made of galvanised sheet (140-400) or painted sheet steel (450-710) and is dynamically balanced. On HP series models, the rotors are made of double-coated sheet steel (cataphoretic paint + polyester).

The models of the acoustic version (INS) are additionally equipped with integrated silencers at the fan outlet. All models have a protective grille.

Electric motor

Single-phase motors with 230 V 50 Hz and three-phase motors with 400 V 50 Hz. All motors have IP55 protection, insulation class F and are equipped with maintenance-free ball bearings.

On models from 140 to 400 it is possible to regulate the speed by changing the voltage, on other models it is controlled by a frequency converter. When regulating the speed, the electrical system must be equipped with safety devices that guarantee the operation of the fan at maximum speed during a fire.

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