Centrifugal Scroll Fans

Commercial Centrifugal Scroll Fans, forward curved and backward curved impellers, different versions and sizes of double and single inlet fans available. Often classified by two numbers, eg. 10/10, 9/9 etc. This indicates the size of the scroll/squirrel cage impeller. ie. 10 inches long, 10 inches diameter. Closed motor or external rotor versions advised for dirty air.
Also known as snail fans.
These need an enclosure to operate and are normally at one end of a system. For inline commercial fans, see our Centrifugal & MixVent Fans or industrial section. for larger units.

Displaying 25 to 48 (of 53 products)
Nicotra RDH E0-0400 (L)
Nicotra RDH E0-0400 (L)
£ 1,549.00
Nicotra RDH E0-0400 (L)...
Nicotra RDH E2-0280 (R)
Nicotra RDH E2-0280 (R)
£ 875.00
Nicotra RDH E2-0280 (R)...
Nicotra RDH E2-0315 (R)
Nicotra RDH E2-0315 (R)
£ 1,069.00
Nicotra RDH E2-0315 (R)...
Nicotra RDH E2-0355 (R)
Nicotra RDH E2-0355 (R)
£ 1,429.99
Nicotra RDH E2-0355 (R)...
Nicotra RDH E2-0400 (R)
Nicotra RDH E2-0400 (R)
£ 1,498.00
Nicotra RDH E2-0400 (R)...
Nicotra RDH E2-0500 (R)
Nicotra RDH E2-0500 (R)
£ 2,095.00
Nicotra RDH E2-0500 (R) This fan is on a 8 week lead time,...
Nicotra RDH E4-0225 (K)
Nicotra RDH E4-0225 (K)
£ 949.00
Nicotra RDH E4-0225 (K)...
Nicotra RDH E4-0250 (K)
Nicotra RDH E4-0250 (K)
£ 1,124.99
Nicotra RDH E4-0250 (K)...
Nicotra RDH E4-0315 (K)
Nicotra RDH E4-0315 (K)
£ 1,126.00
Nicotra RDH E4-0315 (K)...
Nicotra RDH E4-0355 (K)
Nicotra RDH E4-0355 (K)
£ 1,443.00
Nicotra RDH E4-0355 (K)...
Nicotra RDH E4-0355 (K) With Flange 0355 ADHE/RDHE
Nicotra RDH E4-0355 (K) With Flange 0355 ADHE/RDHE
£ 1,792.80
Nicotra RDH E4-0355 (K) With Flange 0355 ADHE/RDHE...
Nicotra RDH E4-0400 (K)
Nicotra RDH E4-0400 (K)
£ 1,929.99
Nicotra RDH E4-0400 (K) *** THIS PRODUCT CAN NOT BE RETURNED AS IT IS MADE TO ORDER ***...
Nicotra RDH E4-0400 With Framework Fitted
Nicotra RDH E4-0400 With Framework Fitted
£ 1,841.40
Nicotra RDH E4-0400 With Framework Fitted...
Nicotra RDH E4-0450 (K)
Nicotra RDH E4-0450 (K)
£ 2,081.00
Nicotra RDH E4-0450 (K) *** THIS PRODUCT CAN NOT BE RETURNED AS IT IS MADE TO ORDER ***...
Nicotra RDH E4-0450 (L)
Nicotra RDH E4-0450 (L)
£ 1,726.92
Nicotra RDH E4-0450 (L)...
Nicotra RDH E4-0500 (K)
Nicotra RDH E4-0500 (K)
£ 2,185.85
Nicotra RDH E4-0500 (K) This fan is on a 8 week lead time,...
Nicotra RDH E4-0560 (K)
Nicotra RDH E4-0560 (K)
£ 3,195.00
Nicotra RDH E4-0560 (K)...
Nicotra RDH E6-0450 (K1)
Nicotra RDH E6-0450 (K1)
£ 2,450.00
Nicotra RDH E6-0450 (K1)...
Nicotra RER  11-0225
Nicotra RER 11-0225
£ 875.00
Nicotra RER 11-0225. - Lock formed casing, galvanised sheet steel - discharge flange - multi position feet - Deep groove ball bearings, maintenance free...
RD28S-4DW.4ER.2L
RD28S-4DW.4ER.2L
£ 4,074.99
RD28S-4DW.4ER.2L Double inlet centrifugal fan with spiral housing. Type: RD28S-4DW.4ER.2L...
RD28S-4DW.4R.2L
RD28S-4DW.4R.2L
£ 769.55
RD28S-4DW.4R.2L Double inlet centrifugal fan with spiral housing. Type: RD28S-4DW.4R.2L...
RD28S-4DW.4R.AL - (209880)
RD28S-4DW.4R.AL - (209880)
£ 1,895.00
RD28S-4DW.4R.AL - (209880) Double inlet centrifugal fan with spiral housing. Type: RD28S-4DW.4R.AL - (209880)...
RD28S-4EW.4R.2L
RD28S-4EW.4R.2L
£ 976.24
RD28S-4EW.4R.2L Double inlet centrifugal fan with spiral housing. Type: RD28S-4EW.4R.2L...
RD31S-4DW.6Q.AL - 121303  (Three Phase)
RD31S-4DW.6Q.AL - 121303 (Three Phase)
£ 1,456.92
RD31S-4DW.6Q.AL Double inlet centrifugal fan with spiral housing. Type: RD31S-4DW.6Q.AL ...
Displaying 25 to 48 (of 53 products)
1 x RTRD - Three Phase Speed Controller - 2 Amp1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 1.5KW1 x RTRD - Three Phase Speed Controller - 4 Amp1 x AW 355 D4-2-EX Explosion Proof Axial Fan - ATEX1 x Helios HQW-200/2 - IP551 x Envirovent G4 Filter - SL-G4/F71 x Elta Wall Cowl SWC56/631 x Eco-Loft Positive Input Ventilation System - PIV Loft Mounted -EVL-HAS1 x PPF4 - Positive Pressure Supply Fan1 x MEV 160 & 300 Additional Spigots1 x Cased Axial Fan Extension - 400mm dia1 x GEO Ground Source Heat Exchanger1 x Casals Circular Outlet Connection Flange - 5102018031 x A Duct Mountable - Double Drilled Fixing Flange (PAIR) - 500mm1 x AKOR Spare Filter1 x EnergiSava 210 Low Energy Heat Recovery Unit1 x A Duct Mountable - Double Drilled Fixing Flange (PAIR) - 710mm1 x CBA-160 Inlet Flange for CBT-1601 x A Duct Mountable - Double Drilled Fixing Flange (PAIR) - 630mm1 x CBS-130 Outlet Flange for CBT-1301 x Akor Controller Switch1 x A Duct Mountable - Double Drilled Fixing Flange (PAIR) - 400mm1 x AKOR GD - Spare Motor1 x A Duct Mountable - Double Drilled Fixing Flange (PAIR) - 355mm1 x A Duct Mountable - Double Drilled Fixing Flange (PAIR) - 450mm1 x ASF 355-500 inlet flange DVS1 x CAD-COMPACT 900 ADVANCED N8 - MVHR unit1 x GENIOX 11 Roof Mounted External Unit1 x Genius Whole house unit -1 x A Duct Mountable - Double Drilled Fixing Flange (PAIR) - 315mm1 x CBS-100 Outlet Flange for CBT-1001 x A Duct Mountable - Double Drilled Fixing Flange (PAIR) - 560mm1 x Duct Tape - Temperature-resistant flexible sealing Duct Tape - 50 Mtr1 x AKOR T3/7 Spare Motor1 x EnergiSava 260 Compact Heat Recovery unit - ESAVA2601 x Elta Wall Cowl SWC35/401 x G4 extract filter for IDEO HR unit1 x AKOR Mounting Plate for GD model(VIM166423)1 x filter pack (set of 2) pt no. 4438891 x F7/G4 supply filter kit for IDEO HR unit1 x GENIOX 11 Internal Mounted Unit1 x CADB/T-HE PRO-REG Series1 x CADB/T-HE 54 ECOWATT Series1 x Soler & Palau - HCBT/4-800/H - IP551 x Soler & Palau - HXTR/2-250/H - IP441 x Soler & Palau - HXBR-250 ECOWATT - IP441 x Soler & Palau - HXTR/6-800/H - IP541 x HCFT/4-800/H Plastic impeller plate fan - 800mm1 x Helios HQW-250/4 - IP551 x HCFT/4-250mm plastic impeller plate fan1 x Hydor HPA250/2-11 x Elta SCP250-1EC - IP551 x Soler & Palau - HXTR/12-800/28-A1 x Soler & Palau - HCBT/4-800/H-B FLOW ( Supply Air Fan) - IP551 x HRST/6-800/28-AQ1 C21 x Helios HQW-250/2 - IP551 x Rotorex HXBR 250mm Plate Axial Fan - Single Phase (2-pole)1 x AW Sileo EC Plate Axial Fan - Three Phase - 800mm1 x HV Wall Mounted Belt Drive Fan 800mm 220V to 240V / 50Hz 0.75kW - Single Phase1 x HRST/6-800/28-BZ-68 (400V50)C1 x Spiral Ducting 3 Meters - 900mm1 x Soler & Palau - HXBR/4-250/H - IP441 x Elta SCP250/4-1AC - IP551 x Elta SPA250/4-1AC - IP441 x HRB/2-250-AMPN1 x HV Wall Mounted Belt Drive Fan 800mm 400V / 50Hz 0.75kW - Three Phase1 x Elta SCP800/6/8-3AC - IP551 x Female Ducting Connector - 900mm1 x Soler & Palau HXM-250mm1 x EBM PAPST - A2E250-AE65-02 Axial fan1 x Helios GigaBox 500mm GBW 500/4 centrifugal1 x Hydor HPA250/4-11 x Soler & Palau - HXTR/4-250/H - IP441 x Helios - HQD 250/21 x HRST/6-800/28-BZ1 x KABT/4- 9000/5001 x HRST/6-800/28-AQ C21 x Curved boot - 900mm1 x Soler & Palau - HCBT/6-800/H - IP651 x Elta SPA250/2-1AC - IP441 x Soler & Palau - HCBT/4-250/H - IP651 x Multiflow SMB500/4-1AC1 x HCFT/4-800/L Plastic impeller plate fan1 x Nicotra PFP A3-0500 3F 4100W M6H5 BQE1 x HRST/6-800/22-BZ-68-J C1 x Elta SCP250/4-3AC - IP551 x Spiral Ducting 1 Meters - 900mm1 x Helios GigaBox 500mm GBD 500/4/4 centrifugal1 x Male Ducting Connector - 900mm1 x Elta HXP 800mm 6-Pole (Three Phase)1 x HCFT/6-800-H plastic impeller plate fan1 x Soler & Palau - HCBT/2-250/H - IP651 x EMF 500-14 - ECO MIXED FLOW IN-LINE FANS1 x Spigot plate - 900mm1 x Ziehl-Abegg - RH50 V-ZIK.GG.1R1 x Spiral end cap - Female - 900mm1 x Prio 500 3 Phase - 230V or 400V - 50Hz1 x Etaline 500mm - D4 01 3 Phase1 x Wall Mounted Air Curtains - COR-N Series1 x Helios TSW 10 Amp Transformer speed controller1 x Helios TSW MCB Amp Transformer speed controller1 x Helios TSW 1.5 Amp Transformer speed controller1 x Rectangular Airbrick Adaptor1 x REB-CVF 0-10v Controller
BD9/9 centrifugal M4 0.35Kw
BD9/9 centrifugal M4 0.35Kw
£ 399.00 now £ 350.00
Reviews
Transformer (silent) speed controller - RE 1.5 Amp
Transformer (silent) speed controller - RE 1.5 Amp
£ 132.29

Unbelievable! With TDmixvent500: noise reduction minimum 50%...