Centrifugal fans

How to choose this product

Centrifugal fans have a spiral shape, their turbine displacing air by centrifugal force. The suction inlet is axial and the outflow is radial. They are common in public and industrial facility ventilation.

Applications

These devices are used for ventilation, heating and air conditioning, for supplying air to ovens and for tunnel ventilation. Different models exist for clean, dusty, dry, humid or corrosive air.

Technologies

Such fans are composed of an inlet device, a paddle-wheel turbine, a streamlined spiral case (the scroll) and a base. The inlet and the turbine can have single or double intakes. Fan geometry can favor either flow or pressure.

A forward curved impeller has blades curved in the direction of fan rotation. Straight radial blades are self-cleaning and relatively unaffected by dust and humidity, but are comparatively less efficient. If the concave side of the blades faces away from the direction of rotation, it is a backward curved impeller.

The motor coupling is usually direct and fixed-speed. It also can use variable-speed V-belts. Fans are carefully designed to achieve optimum stability and minimum noise. They are made of aluminum or of stainless steel. The blades are welded or bent.

How to choose

Consider the characteristics of the air to be moved and the required airflow rate or air pressure. Load curves can help determine the technical parameters necessary for fan dimension calculations.

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ROCCHEGGIANI SPA 122 - 1 415 m³/h | FRC
122 - 1 415 m³/h | FRC ROCCHEGGIANI SPA

Available in 9 sizes that go from 122 up to 1.415 m3/h in five versions: · Vertical with cabinet: FRC - VM series; · Low vertical...

18 products ECOFIT & ETRI
ECOFIT & ETRI 185 - 260 m³/h | TREA series
Single inlet 185 - 260 m³/h | TREA series ECOFIT & ETRI

External rotor motor ECOFIT external rotor motors are available with IP 20 or IP 44. IP 20 motors are...

ECOFIT & ETRI 185 - 260 m³/h | GREA series
Single inlet 185 - 260 m³/h | GREA series ECOFIT & ETRI

Single inlet centrifugal fans The range presented in this chapter consists of centrifugal impellers...

ECOFIT & ETRI 240 - 785 m³/h | TRE series
Single inlet 240 - 785 m³/h | TRE series ECOFIT & ETRI

Single inlet centrifugal fans The range presented in this chapter consists of centrifugal impellers...

ECOFIT & ETRI 107 - 785 m³/h |GRE series
Single inlet 107 - 785 m³/h |GRE series ECOFIT & ETRI

Single inlet centrifugal fans The range presented in this chapter consists of centrifugal impellers...

ECOFIT & ETRI 400  - 880 m³/h | GDS series
Double inlet 400 - 880 m³/h | GDS series ECOFIT & ETRI

Double inlet centrifugal fans The range presented in this chapter consists of centrifugal...

ECOFIT & ETRI 950 m³/h | GDR series
Double inlet 950 m³/h | GDR series ECOFIT & ETRI

Double inlet centrifugal fans The range presented in this chapter consists of centrifugal...

65 products EBMPAPST
EBMPAPST 86 -  104 m³/h | REF 100 series
DC 86 - 104 m³/h | REF 100 series EBMPAPST

Particular design features: Pressure-optimised blower. Very flat and high-performance centrifugal fan. Optional Vario-Pro: Highly flexible software configuration...

EBMPAPST 104 - 390 m³/h | RER 120 series
DC 104 - 390 m³/h | RER 120 series EBMPAPST

Particular design features: Very smooth running 3-phase fan drive. Very high pressure build-up. Backward curved impeller. Standard...

EBMPAPST 60 - 137 m³/h | RG 125 series
DC 60 - 137 m³/h | RG 125 series EBMPAPST

Particular design features: Optional Vario-Pro: Highly flexible software configuration for the fan ensures an easily customisable solution to meet the individual requirements...

EBMPAPST 86 - 94 m³/h | RG 125 series
AC 86 - 94 m³/h | RG 125 series EBMPAPST

AC voltage fan with external rotor motor shaded-pole motor. Protected from overload by impedance protection....

EBMPAPST 47 - 54 m³/h | RG 90 series
AC 47 - 54 m³/h | RG 90 series EBMPAPST

AC voltage fan with external rotor motor shaded-pole motor. Protected from overload by impedance protection....

EBMPAPST 40 - 55 m³/h | RL 90 series
DC 40 - 55 m³/h | RL 90 series EBMPAPST

Particular design features: Optional Vario-Pro: Highly flexible software configuration for the fan ensures an easily customisable solution to meet the...

3 products Fandis
1 products CAPTAIR
51 products PLASTIFER
PLASTIFER 100 - 450 m³/h | VSB 14
Lowpressure 100 - 450 m³/h | VSB 14 PLASTIFER

Extract Fan Low Pressure Produced completely by injection moulding.Polypropylene housing resistant to UV rays and adjustable to 8 positions....

PLASTIFER 500 - 1 600 m³/h | VSB 20
Lowpressure 500 - 1 600 m³/h | VSB 20 PLASTIFER

Extract Fan Low Pressure Produced completely by injection moulding. Polypropylene housing resistant to UV rays and adjustable to 8 positions....

PLASTIFER 720 - 2 000 m³/h | VSB 23
Lowpressure 720 - 2 000 m³/h | VSB 23 PLASTIFER

Extract Fan Low Pressure Produced completely by injection moulding. Polypropylene housing resistant to UV rays and adjustable to 8 positions....

PLASTIFER 900 - 2 200 m³/h | VSB 24, VSB 25
Lowpressure 900 - 2 200 m³/h | VSB 24, VSB 25 PLASTIFER

Extract Fan Low Pressure Produced completely by injection moulding. Polypropylene housing resistant to UV rays and adjustable to 8 positions....

PLASTIFER 1 000 - 4 000 m³/h | VSB 30
Lowpressure 1 000 - 4 000 m³/h | VSB 30 PLASTIFER

Extract Fan Low Pressure Produced completely by injection moulding. Polypropylene housing resistant to UV rays and adjustable to 8 positions....

PLASTIFER 2 000 - 6 000 m³/h | VSB 35
Lowpressure 2 000 - 6 000 m³/h | VSB 35 PLASTIFER

Extract Fan Low Pressure Produced completely by injection moulding. Polypropylene housing resistant to UV rays and adjustable to 8 positions....

Févi international C14A, L14A, M14A
With airfoil blades C14A, L14A, M14A Févi international

CLEAN GAS OR GAS WITH NON-ABRASIVE AND ONLY SLIGHTLY CLOGGING DUST Because of the aircraft wing profile shape of the blades, the fluid is discharged with a minimum of turbulence, shocks and...

Févi international AGRIC'AIR NG 1
Portable AGRIC'AIR NG 1 Févi international

Single inlet mobile centrifugal fans in accordance to Eco-Design 2009/125/EC Directive for small and medium farms. Wheel fitted on motor shaft. 20 000 farms are using the AGRIC’AIR NG fans, which are...

11 products MAICO
MAICO 220 - 2 350 m³/h | ERR series
For circular ducts 220 - 2 350 m³/h | ERR series MAICO

Centrifugal duct fan Application examples : Machine extraction unit, Workplace air extraction system, Production site, Storage facility,...

MAICO 250 - 630 mm, 1 200 - 11 000 m³/h| ESQ, DSQ series
Soundproofing 250 - 630 mm, 1 200 - 11 000 m³/h| ESQ, DSQ series MAICO

Quickbox ESQ, DSQ Sound-insulated centrifugal fans with exhaust air connection which can be fitted in various ways Sound-insulated radial fan for indoor or outdoor fitting, alternating...

MAICO 100 - 125 mm, 172 - 208 m³/h | EFR series
For ventilation duct 100 - 125 mm, 172 - 208 m³/h | EFR series MAICO

Centrifugal flat box EFR Centrifugal duct fans with narrow dimensions for fitting in very tight situations Application...

MAICO 900 - 6 800 m³/h | EPK , DPK series
For rectangular ducts 900 - 6 800 m³/h | EPK , DPK series MAICO

Centrifugal channel fan, single-phase AC Application examples : Commercial premises, Workplace, Showroom, Production facility, Industrial building Features - Installation in...

MAICO 3 330 - 10 200 m³/h | DSK series
For rectangular ducts 3 330 - 10 200 m³/h | DSK series MAICO

Sound-insulated channel fan DSK EC Your benefits: - Pleasantly quiet. - Problem-free installation, even when space is tight. - Simple cleaning thanks to swivellable fan. - Optimised efficiency, low maintenance...

MAICO 310 - 870 m³/h | ERM-E Ex e series
Explosionproof 310 - 870 m³/h | ERM-E Ex e series MAICO

ERM-E Ex e semi-centrifugal duct fans Application examples : Environment with explosion hazard (zone 1 and 2), Dye shop, Battery room, Commercial premises, Production facility Features -...

2 products Plymoth-Plymex
Plymoth-Plymex ø 125 - 200 mm, 0.37 - 0.75 kW | P-Max series
Centrifugal exhaust fan ø 125 - 200 mm, 0.37 - 0.75 kW | P-Max series Plymoth-Plymex

The P-Max fans are designed for extracting smoke, gas and lighter...

Plymoth-Plymex ø 125 - 200 mm, 0.37 - 0.75 kW | Mobi-Fan
Portable ø 125 - 200 mm, 0.37 - 0.75 kW | Mobi-Fan Plymoth-Plymex

Mobile Fan for Smoke, Gases and lighter Dust Mobi-Fan is a powerful ventilator, which is easy to bring with you on service, repair and other temporary work. Perfect for extracting welding fumes, gases,...

2 products Airbravo
Airbravo 250 - 3 000 Nm³/h | J series
Centrifugal exhaust fan 250 - 3 000 Nm³/h | J series Airbravo

Centrifugal exhaust-fans designed specifically for source-capture and are directly compatible...

Airbravo 250 - 3 000 Nm³/h | J series
Steel 250 - 3 000 Nm³/h | J series Airbravo

Made for operation in Atex classified areas, they are available in versions for Dust or...

Elektror airsystems gmbh max. 100 m³/min, 17 300 Pa | HRD series
Highpressure max. 100 m³/min, 17 300 Pa | HRD series Elektror airsystems gmbh

Up to 100 m³/min and 17,300 Pa. Drive via robust fan belt transmission...

Elektror airsystems gmbh max. 40 m³/min, 21 200 Pa | HRD-BOOSTED series
Highpressure max. 40 m³/min, 21 200 Pa | HRD-BOOSTED series Elektror airsystems gmbh

Up to 40 m³/min and 21,200 Pa. Wear-free, direct drive via offset frequency...

Elektror airsystems gmbh max. 180 m³/min, 10 000 Pa | S-MP series
Medium pressure max. 180 m³/min, 10 000 Pa | S-MP series Elektror airsystems gmbh

Up to 180 m³/min and 10,000 Pa. Housing made of steel or stainless...

Elektror airsystems gmbh max. 40 m³/min, 14 800 Pa |  S-XP 240/400
Highpressure max. 40 m³/min, 14 800 Pa | S-XP 240/400 Elektror airsystems gmbh

Sometimes it is just down to a millimetre. A bt of power does not always mean a...

4 products Breezy Bud
Breezy Bud DT series
Explosionproof DT series Breezy Bud

Features of DT Series A manhole and drain-hole are standard accessories. It is encased in a casing with smooth interior to ensure smooth airflow, and very convenient to check and clean the impeller. Located...

Breezy Bud 1 200 - 9 600 mmAq | TB-250x8T
Centrifugal blower 1 200 - 9 600 mmAq | TB-250x8T Breezy Bud

Our process blowers operate continuously for 24 hours a day, 365 days a year. The stability and reliability are recognized by a...

Breezy Bud 300 - 1 100 mmAq | TF series
Single-stage centrifugal blower 300 - 1 100 mmAq | TF series Breezy Bud

Our process blowers operate continuously for 24 hours a day, 365 days a year. The stability and reliability are recognized by a...

Breezy Bud 1 400 - 2 000 mmAq | TC series
Single-stage centrifugal blower 1 400 - 2 000 mmAq | TC series Breezy Bud

Our process blowers operate continuously for 24 hours a day, 365 days a year. The stability and reliability are recognized by a...

1 products TEKA
TEKA 2000 - 10000 m³/h, 0.75 - 11.0 kW
Medium pressure 2000 - 10000 m³/h, 0.75 - 11.0 kW TEKA

Appropriate to the connection to suction arms in order to guide the pollutants away...

UNVEREN LTD. STI. 500 - 6 000 m³/h | BOR
Medium pressure 500 - 6 000 m³/h | BOR UNVEREN LTD. STI.

UAS BOR Medium pressure radial fans are economic and consisting of below listed parts. Generally it is used for material transportation as well as each working places requiring medium pressure air and...

UNVEREN LTD. STI. 500 - 3 000 m³/h | BYK
Highpressure 500 - 3 000 m³/h | BYK UNVEREN LTD. STI.

High efficiency and economic UAS BYK blower fans are consisting of below listed parts. Generally it is used for every kind of (oil,LPG,natural gas) transportation as well as each working places requiring...

UNVEREN LTD. STI. 21 700 m³/h | BYK
Highpressure 21 700 m³/h | BYK UNVEREN LTD. STI.

Standard Specifications: Italian Nicotra fans are used in our cellular vantilators. Our cells are aluminium carcase and cell panels are made by galvanized sheet. Cell walls are fabricated as single layer.The...

UNVEREN LTD. STI.
Lowpressure UNVEREN LTD. STI.

UAS OBR FANS Our UAS-OBR fans are...

Stiavelli Irio srl
Highpressure Stiavelli Irio srl

YHP/N series High Pressure Industrial Centrifugal fan High-efficiency backward blades impeller. Direct-coupled...

Stiavelli Irio srl
Lowpressure Stiavelli Irio srl

YVR/N series Low Pressure Industrial Centrifugal Fans High-efficiency...

Stiavelli Irio srl
Beltdriven Stiavelli Irio srl

YTK/R series Low Pressure Centrifugal Industrial fan Open blades radial...

TBH GmbH Absaugtechnik Filtertechnik Umwelttechnik max. 390 m³/h | 4000 Pa | GL 230
For fume extraction max. 390 m³/h | 4000 Pa | GL 230 TBH GmbH Absaugtechnik Filtertechnik Umwelttechnik

By means of newest technologies we have been able to create a high-performance and yet energy-saving fume extraction...

TBH GmbH Absaugtechnik Filtertechnik Umwelttechnik max. 390 m³/h | 4000 Pa | GL 265
For fume extraction max. 390 m³/h | 4000 Pa | GL 265 TBH GmbH Absaugtechnik Filtertechnik Umwelttechnik

By means of newest technologies we have been able to create a high-performance and yet energy-saving fume extraction...

TBH GmbH Absaugtechnik Filtertechnik Umwelttechnik max. 1000 m³/h | 2700 Pa | GL 400
For fume extraction max. 1000 m³/h | 2700 Pa | GL 400 TBH GmbH Absaugtechnik Filtertechnik Umwelttechnik

By means of newest technologies we have been able to create a high-performance and yet energy-saving fume extraction...

AFW Lufttechnik GmbH 1 500 - 16 000 m³/h | RV
Highperformance 1 500 - 16 000 m³/h | RV AFW Lufttechnik GmbH

RV series fans are suitable for conveying slightly-contaminated air. They are made of 3-4mm...

Industrial Air Technology Corp. 2 000 - 280 000 CFM | AF
With airfoil blades 2 000 - 280 000 CFM | AF Industrial Air Technology Corp.

AF Airfoil Single Wide Wheels have aerodynamically shaped blades providing non-overloading, highly...

Industrial Air Technology Corp. 1 500 - 250 000 CFM | BISW
With backward inclined straight blades 1 500 - 250 000 CFM | BISW Industrial Air Technology Corp.

BISW Backward Inclined Single Wide Wheels have flat, backwardly inclined, single thickness blades. Non-overloading...

Industrial Air Technology Corp. 5 000 - 280 000 CFM | BIDW
With backward inclined straight blades 5 000 - 280 000 CFM | BIDW Industrial Air Technology Corp.

Wheels have flat, backwardly inclined, single thickness blades Non-overloading high efficiency...

Industrial Air Technology Corp. 500 - 100 000 CFM | IRO
Combustion air 500 - 100 000 CFM | IRO Industrial Air Technology Corp.

A variety of wheel designs listed below are used for moderate pressure, clean air, industrial processes...

Industrial Air Technology Corp. 500 - 48 000 CFM | IRF
Open blade 500 - 48 000 CFM | IRF Industrial Air Technology Corp.

IRF (Flat Back Plate) eliminates material buildup around blades Sizes:...

Industrial Air Technology Corp. 800 - 16 000 CFM | IRW
Centrifugal exhaust fan 800 - 16 000 CFM | IRW Industrial Air Technology Corp.

IRW (Wool type) for heavier fibrous material handling (paper, plastic,...

aspirnova2000 s.r.l VQR
Backward curved VQR aspirnova2000 s.r.l

The fans of the VQR series I send their main application in commercial and industrial plants of air-conditioning, ventilation, heating and i ltering; They are...

aspirnova2000 s.r.l VRE/FLA series
In line for duct VRE/FLA series aspirnova2000 s.r.l

The series VRE/FLA completes the series of centrifugal fans for ducted systems. It has been studied to obtain easy, pratical and rapid insertion...

aspirnova2000 s.r.l 500 - 6 500 m³/h | VRE series
In line for duct 500 - 6 500 m³/h | VRE series aspirnova2000 s.r.l

VRE serie represents the most modern and cheapest solution used in duct systems. This series has been designed to be directly connected...

aspirnova2000 s.r.l
In line for duct aspirnova2000 s.r.l

Centrifugal boxed ventilators, each one composed of: galvanized steel sheet structure, back ward-bladed centrifugal impeller...

aspirnova2000 s.r.l max. 16 500 m³/h | VZ series
With forward inclined curved blades max. 16 500 m³/h | VZ series aspirnova2000 s.r.l

VZ series centrifugal fans are suited to blowing air and fumes without dusts with a maximum temperature of 60°C. RANGE It is constitute d by characteristics with airflow...

aspirnova2000 s.r.l CCT series
Double inlet CCT series aspirnova2000 s.r.l

CCT series double exhaust transmission fans in box casing are used in aspiring installations, with smoke problems and with temperature up to 200°C continuous service or in fire cases with 400°C 2h continuing...

PSC MOTOR AND FAN 133 x 91 mm - 190 x 120 mm, 0.7 - 1.76 kg
Backward curved 133 x 91 mm - 190 x 120 mm, 0.7 - 1.76 kg PSC MOTOR AND FAN

ECAC Backward Curved Impellers:133 mm x 91mm Weight: 0.924kg Impeller: Plastic PA6.6(glass-fibre reinforced) Direction...

PSC MOTOR AND FAN 200 x 118 mm - 251 x 130 mm, 1.34 - 2.25 kg
Backward curved 200 x 118 mm - 251 x 130 mm, 1.34 - 2.25 kg PSC MOTOR AND FAN

Weight: 2.25kg Impeller: Plastic PA6.6(glass-fibre reinforced) Direction of rotation:...

PSC MOTOR AND FAN 316 x 160 mm - 360 x 206 mm, 3.13 - 5.2 kg
Backward curved 316 x 160 mm - 360 x 206 mm, 3.13 - 5.2 kg PSC MOTOR AND FAN

Weight: 3.13kg Impeller: Aluminum Sheet Direction of rotation: Clockwise, seen on...

PSC MOTOR AND FAN 404 x 205 mm, 5.6 Kg
Backward curved 404 x 205 mm, 5.6 Kg PSC MOTOR AND FAN

Weight: 5.6kg Impeller: Aluminum Sheet Direction of rotation: Clockwise, seen on...

PSC MOTOR AND FAN 220 x 71 mm - 281 x 105 mm, 1.40 - 2.85 kg
Backward curved DC 220 x 71 mm - 281 x 105 mm, 1.40 - 2.85 kg PSC MOTOR AND FAN

Weight: 2.20kg Impeller: Metal Sheet Motor: DC brushless...

PSC MOTOR AND FAN 175 x 68 mm - 190 x 74 mm, 0.77 - 0.94 kg
Backward curved DC 175 x 68 mm - 190 x 74 mm, 0.77 - 0.94 kg PSC MOTOR AND FAN

Weight: 0.77kg Impeller: Nylon (polyamide glass-fibre reinforced) Injection-moulded...

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Associated Terms

centrifugal ventilators, radial fans, industrial centrifugal fans

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