Centrifugal Fan

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Centrifugal fans are the workhorse of high-pressure industrial ventilation, using curved impellers to accelerate air radially outward and convert velocity to pressure. This operating principle enables centrifugal fans to overcome substantial system resistance — making them essential for ducted HVAC systems, dust collection and fume extraction systems, combustion air supply, and industrial process ventilation. Centrifugal fans are classified by impeller geometry: forward curved (high airflow, moderate pressure), backward curved (high pressure, maximum efficiency), or radial blade (rugged construction for particulate-laden airflow). They are also available in direct-driven or belt-driven configurations. Centrifugal fans operate across a wide range of motor types and speeds — from 1500 RPM standard AC motors to high-speed EC drives. Key manufacturers include ebm-papst, ZIEHL-ABEGG, Nicotra Gebhardt, Rosenberg, and SODECA. Hengrui supplies centrifugal fans from all major brands with complete performance curves, competitive pricing, and engineering consultation for system design. When selecting centrifugal fans, engineers must match fan performance curves to calculated system curves for optimal efficiency and reliability.

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Mfr Part #	Rated Voltage(V)	Size(mm)	Max.Air Flow(m³/h)	Max.Pressure(Pa)	Input Power(W)	Speed(rpm)	Noise(db)

RH45M-4EK.6F.1R \| ZIEHL-ABEGG 3~230-400V AC Impeller for HVAC, Rail & Drying Equipment Specified for Ventilation Systems, the ZIEHL-ABEGG RH45M-4EK.6F.1R is a 230-400V AC centrifugal fan, built around 450 mm dimensions for installation planning. This enables specification-led selection.	3~230/400	450	-	-	-	-	-
GR35M-2EK.6N.3R \| ZIEHL-ABEGG 1~230V 1800W AC Fan Module for HVAC Equipment Integration Designed for Air Handling Units, the ZIEHL-ABEGG GR35M-2EK.6N.3R is a 230V AC centrifugal fan, whose supplied data highlights a documented speed of 2,870 rpm. It provides a practical sizing reference.	1~230	350	3300	1200	1800	2870	-
RH56M-VDT.7Q.1R \| ZIEHL-ABEGG 460V 3400W AC Impeller for HVAC, Rail & Drying Equipment Aimed at Ventilation Systems, the ZIEHL-ABEGG RH56M-VDT.7Q.1R is a 460 V AC centrifugal fan, noted for a listed pressure capability of 740 Pa. The figure helps confirm design suitability.	460	560	10600	740	3400	1570	-
RG35P-4DK.7M.1R \| ZIEHL-ABEGG 3~230-400V 4200W AC Radial Fan for HVAC & Equipment Cooling Aimed at Ventilation, the ZIEHL-ABEGG RG35P-4DK.7M.1R is a 230-400V AC centrifugal fan, identified by 350 mm dimensions for installation planning. This assists electrical and mechanical review.	3~230/400	350	-	-	4200	1500	-
GR56C-4DK.6N.CR \| ZIEHL-ABEGG 400V AC Fan Module for HVAC Equipment Integration Engineered around Air Handling Units, the ZIEHL-ABEGG GR56C-4DK.6N.CR is a 400 V AC centrifugal fan, for which the table lists 560 mm dimensions for installation planning. This enables specification-led selection.	400	560	-	-	-	-	-
RD13S-2EP.WC.2R \| ZIEHL-ABEGG 1~230V 160W AC Centrifugal Fan for HVAC & Equipment Cooling Supporting Ventilation, the ZIEHL-ABEGG RD13S-2EP.WC.2R is a 230V AC centrifugal fan, specified with 130 mm dimensions for installation planning. The rating clarifies its operating profile.	1~230	130	800	390	160	2019	-
RH25M-2DK.1E.2R \| ZIEHL-ABEGG 3~400V 250W AC Impeller for HVAC, Rail & Drying Equipment Intended for Ventilation Systems, ZIEHL-ABEGG RH25M-2DK.1E.2R is a 400V AC centrifugal fan, built around a documented speed of 2,820 rpm. The figure supports compatibility review. The available ratings guide model comparison.	3~400	250	1500	550	250	2820	-
RH35M-2DK.6K.1R \| ZIEHL-ABEGG 3~230-400V AC Impeller for HVAC, Rail & Drying Equipment Chosen for Ventilation Systems, the ZIEHL-ABEGG RH35M-2DK.6K.1R is a 230-400V AC centrifugal fan, using 350 mm dimensions for installation planning. It gives buyers a documented reference.	3~230/400	350	-	-	-	-	-
RH31M-4EK.2C.1R \| ZIEHL-ABEGG 230V 200W AC Impeller for HVAC, Rail & Drying Equipment Integrated into Ventilation Systems, the ZIEHL-ABEGG RH31M-4EK.2C.1R is a 230 V AC centrifugal fan, combining its format with 310 mm dimensions for installation planning. It gives project engineers a selection cue.	230	310	-	-	200	1510	-
RH63N-4DK.7Q.AR \| ZIEHL-ABEGG 3~400-690V 3900W AC Impeller for Equipment Cooling & Ventilation Created for Ventilation, the ZIEHL-ABEGG RH63N-4DK.7Q.AR is a 400-690V AC centrifugal fan, for which the table lists a documented 3,900 W input rating. This enables specification-led selection.	3-400/690	630	-	-	3900	1290	-
RH56C-4DK.6N.1R \| ZIEHL-ABEGG 230V AC Impeller for HVAC Customer Systems Suited to Ventilation Systems, the ZIEHL-ABEGG RH56C-4DK.6N.1R is a 230 V AC centrifugal fan, rated with 560 mm dimensions for installation planning. This helps guide installation planning.	230	560	-	-	-	-	-
RH50V-ZIK.GG.1R \| ZIEHL-ABEGG 3~380-480V 4100W EC Impeller for Production & Cleanroom Equipment Chosen for Ventilation, ZIEHL-ABEGG RH50V-ZIK.GG.1R is a 380-480V EC centrifugal fan, rated with a documented 4,100 W input rating. This helps guide installation planning. Its recorded specification supports equipment selection.	3`380-480	500	-	-	4100	-	-
RH50C-4DK.6N.1R \| ZIEHL-ABEGG 230-400V 2400W AC Impeller for HVAC Customer Systems Assigned to Ventilation Systems, the ZIEHL-ABEGG RH50C-4DK.6N.1R is a 230-400V AC centrifugal fan, marked by a listed pressure capability of 750 Pa. It provides a practical sizing reference.	230/400	500	9250	750	2400	1590	-
RH45V-VDK.4F.1R \| ZIEHL-ABEGG 400V 640W AC Impeller for Production & Cleanroom Equipment Suited to Ventilation Systems, ZIEHL-ABEGG RH45V-VDK.4F.1R is a 400 V AC centrifugal fan, presenting a documented 640 W input rating. This assists electrical and mechanical review.	400	450	5700	530	640	1250	74
RH45M-VDK.6F.1R \| ZIEHL-ABEGG 400V 820W AC Impeller for HVAC, Rail & Drying Equipment Suited to Ventilation Systems, ZIEHL-ABEGG RH45M-VDK.6F.1R is a 400 V AC centrifugal fan, characterized by a listed airflow of 5,500 m³/h. The value helps verify equipment fit. It assists design comparison.	400	450	5500	505	820	1320	-
RH45M-VDK.4F.1R \| ZIEHL-ABEGG 400V 690W AC Impeller for HVAC, Rail & Drying Equipment Supporting Ventilation Systems, ZIEHL-ABEGG RH45M-VDK.4F.1R is a 400 V AC centrifugal fan, marked by a documented 690 W input rating. This helps evaluate the intended duty. Its parameters help confirm system compatibility.	400	450	-	460	690	1210	-
RH45C-VDK.6K.1R \| ZIEHL-ABEGG 460V 1550W AC Impeller for HVAC Customer Systems Focused on Ventilation Systems, ZIEHL-ABEGG RH45C-VDK.6K.1R is a 460 V AC centrifugal fan, built around a documented speed of 1,680 rpm. The figure supports compatibility review. The available ratings guide model comparison.	460	450	-	-	1550	1680	-
RH40M-4EK.4I.1R \| ZIEHL-ABEGG 230V 680W AC Impeller for HVAC, Rail & Drying Equipment Assigned to Ventilation Systems, ZIEHL-ABEGG RH40M-4EK.4I.1R is a 230 V AC centrifugal fan, built around a documented 680 W input rating. This supports technical purchasing review.	230	400	-	-	680	1460	-
RH40M-4DK.4C.1R \| ZIEHL-ABEGG 3~230-400V 450W AC Impeller for HVAC, Rail & Drying Equipment Focused on Ventilation, ZIEHL-ABEGG RH40M-4DK.4C.1R is a 230-400V AC centrifugal fan, built around a documented 450 W input rating. It gives engineers a clear comparison point. Its data aids integration.	3~ 230/400	400	-	-	450	1340	-
RH40G-4DK.2F.1R \| ZIEHL-ABEGG 3~230-400V 410W AC Impeller for Equipment Cooling & Ventilation Adapted for Ventilation, ZIEHL-ABEGG RH40G-4DK.2F.1R is a 230-400V AC centrifugal fan, showing a documented 410 W input rating. The figure helps confirm design suitability. The figure supports sourcing.	3~ 230/400	400	-	-	410	1240	-

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