Centrifugal Single Inlet Fans
CMB / CMT Series


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Range of centrifugal single inlet fans suitable for continuous extraction of airstreams temperature up to 80ºC or 110ºC (Series 1) or 150ºC (Series 2 and 3). All casings are manufactured from electro-welded sheet steel protected against corrosion by grey epoxy-polyester paint coating.
All models incorporate forward curved centrifugal impellers manufactured from galvanised sheet steel.
Available, depending upon the model, with single or three phase motors in 2, 4 or 6 poles.

All motors are IP55, Class F (1) with ball bearings greased for life.
Electrical supply:
-Single phase 230V-50Hz.
-Three phase 230/400V-50Hz up to 3kW.
-Three phase 400V-50Hz, for higher power motors.
Series 1 are equipped with B14 flange mounted motor.
Series 2 & 3 are equipped with B3 foot mounted motor.
(1) Series 1: Some motors are IP44, Class B

Additional information
The scroll can be orientated in 8 different positions as per the table below.
Standard supplied position: LG 270.


ATEX versions
On request, explosion proof versions in accordance with ATEX Directive, for 3 phase models.
For ambient working temperatures from -20ºC to +40ºC.
- ATEX Flameproof - Gas:
In standard ATEX version flameproof motors are without thermal protection.
If used with frequency inverter, flameproof motors with a PTC-type thermal protection must be specified at order.
II 2G Exd IIB T4
II 2G Exd IIB+H2 T4 (with Ex d IIC T4 motor)
- ATEX Increased safety - Gas:
II 2G Ex e II T3
- ATEX - Dust:
In standard ATEX version, ATEX motors for dust are without thermal protection.
If used with frequency inverter, ATEX motors for dust with a PTC-type thermal protection must be specified at order.
Suspended flammable particles and non-conductive dust:
II 3D Ex tc IIIB T125ºC
Conductive dust:
II 3D Ex tc IIIC T125ºC (with IP65 motor)
To select CMT ATEX refer to performance curves, or Easyvent.
Note electrical data may vary for ATEX motors.
For single phase models, please consult S&P.


  • CMB/CMTbdp506

    Impeller dynamically balanced
    Forward curved centrifugal impellers dynamically balanced, according to ISO 1940 standard, providing vibration free operation.

  • pdf_ins1 Ins_CMT-CRMT 2.54Mb
  • Product Datasheet EN_CMB-CMT 1.83Mb

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