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.
| Mfr Part # | Rated Voltage(V) | Size(mm) | Max.Air Flow(m³/h) | Max.Pressure(Pa) | Input Power(W) | Speed(rpm) | Noise(db) | |
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![]() RH25C-6ID.BD.CR 166950 | ZIEHL-ABEGG 1~200-277VAC EC Centrifugal Fan for renewable energy RH25C-6ID.BD.CR 166950 is a 1~200-277 VAC centrifugal fan for data centers, air-conditioning systems, packaging machinery. Its main supplied feature is energy-efficient aerodynamic design highlighted in the supplied series data. It also lists a 250 mm size specified in the upload data. Review housing geometry for project specification. |
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![]() RH40M-4EK.4I.1R 121747 | ZIEHL-ABEGG 230VAC AC Centrifugal Fan for HVAC and ventilation Within air-conditioning systems, RH40M-4EK.4I.1R 121747 operates as a 230 VAC centrifugal fan. Its representative supplied feature is a 400 mm size specified in the upload data. Selection focus: performance curve during project specification. Use the complete model code and supplied parameters when confirming the final installation. |
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![]() RH28M-ZIK.DC.1R 187277 | ZIEHL-ABEGG 3~380-480VAC EC Centrifugal Fan for HVAC and ventilation For industrial buyers serving air-conditioning systems, RH28M-ZIK.DC.1R 187277 is specified as a 3~380-480 VAC centrifugal fan. Its representative supplied feature is a 280 mm size specified in the upload data. Selection focus: wiring plan during project specification. Check the exact variant before ordering. |
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![]() GR28M-ZID.DC.1R 184183 | ZIEHL-ABEGG 3~380-480VAC EC Centrifugal Fan for HVAC and ventilation GR28M-ZID.DC.1R 184183 addresses air-conditioning systems through a 3~380-480 VAC centrifugal fan design. Its representative supplied feature is a 280 mm size specified in the upload data. Selection focus: system resistance during project specification. Use the complete model code and supplied parameters when confirming the final installation. |
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![]() RH31M-2DK.3F.2R 209227 | ZIEHL-ABEGG 400VAC AC Centrifugal Fan for HVAC and ventilation Selected for air-conditioning systems, RH31M-2DK.3F.2R 209227 uses a centrifugal fan arrangement with 400 VAC. Its representative supplied feature is a 310 mm size specified in the upload data. Selection focus: replacement fit during project specification. Use the complete model code and supplied parameters when confirming the final installation. |
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![]() RH31M-2DK.5H.2R 107714 | ZIEHL-ABEGG 400VAC AC Centrifugal Fan for HVAC and ventilation The supplied record positions RH31M-2DK.5H.2R 107714 as a centrifugal fan for air-conditioning systems at 400 VAC. Its representative supplied feature is a backward-curved impeller configuration. Key data also includes a 310 mm size specified in the upload data. Selection focus: service access during project specification. |
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![]() RH40M-VDK.4Y.1R 133179 | ZIEHL-ABEGG 400VAC AC Centrifugal Fan for HVAC and ventilation Designed for air-conditioning systems, RH40M-VDK.4Y.1R 133179 provides a centrifugal fan platform rated at 400 VAC. Its representative supplied feature is a backward-curved impeller configuration. Key data also includes a 400 mm size specified in the upload data. Selection focus: control method during project specification. |
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![]() RH63V-4DK.7Q.1R 173181 | ZIEHL-ABEGG 400VAC AC Centrifugal Fan for industrial automation For packaging machinery, RH63V-4DK.7Q.1R 173181 combines 400 VAC operation with a centrifugal fan configuration. Its representative supplied feature is a compact construction intended to simplify equipment integration. Key data also includes a 630 mm size specified in the upload data. Selection focus: electrical supply during project specification. |
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![]() RE20P-4DK.2C.1R 209475 | ZIEHL-ABEGG 400VAC 200mm AC Centrifugal Fan for motor cooling RE20P-4DK.2C.1R 209475 is a 400 VAC centrifugal fan intended for packaging machinery. Its representative supplied feature is a forward-curved blade arrangement. Key data also includes a 200 mm size specified in the upload data. Selection focus: motor interface during project specification. |
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![]() RH25M-PDK.3F.1R 167137 | ZIEHL-ABEGG 400VAC AC Centrifugal Fan for HVAC and ventilation For air-conditioning systems, RH25M-PDK.3F.1R 167137 combines 400 VAC operation with a centrifugal fan configuration. Its representative supplied feature is a 250 mm size specified in the upload data. Selection focus: ventilation duty during technical approval. Check the exact variant before ordering. |
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![]() RH28M-PDK.3I.1R 167130 | ZIEHL-ABEGG 400VAC AC Centrifugal Fan for HVAC and ventilation RH28M-PDK.3I.1R 167130 is a 400 VAC centrifugal fan intended for air-conditioning systems. Its representative supplied feature is a backward-curved impeller configuration. Key data also includes a 280 mm size specified in the upload data. Selection focus: power budget during technical approval. |
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![]() RH50M-4EK.6K.1R 210737 | ZIEHL-ABEGG 230VAC AC Centrifugal Fan for HVAC and ventilation RH50M-4EK.6K.1R 210737 addresses air-conditioning systems through a 230 VAC centrifugal fan design. Its representative supplied feature is a backward-curved impeller configuration. Key data also includes a 500 mm size specified in the upload data. Selection focus: wiring plan during technical approval. |
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![]() RH28M-2DK.3I.2R 176632 | ZIEHL-ABEGG 3~230/400VAC 400W AC Centrifugal Fan for HVAC and ventilation RH28M-2DK.3I.2R 176632 is a 3~230/400 VAC centrifugal fan for air-conditioning systems. Its main supplied feature is 400 W input power for the listed electrical version. It also lists a 280 mm size specified in the upload data. Review acoustic limit for technical approval. Check the exact variant before ordering. |
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![]() RE35P-4DK.7М.1R 210202 | ZIEHL-ABEGG 400VAC 350mm AC Centrifugal Fan for motor cooling For packaging machinery, RE35P-4DK.7М.1R 210202 combines 400 VAC operation with a centrifugal fan configuration. Its representative supplied feature is a compact construction intended to simplify equipment integration. Key data also includes a 350 mm size specified in the upload data. Selection focus: control method during technical approval. |
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![]() RH31V-ZID.DC.1R 116450 | ZIEHL-ABEGG 3~380-480VAC 1150W EC Centrifugal Fan for industrial automation RH31V-ZID.DC.1R 116450 is a 3~380-480 VAC centrifugal fan for packaging machinery. Its main supplied feature is a 310 mm size specified in the upload data. It also lists 4600 m³/h maximum airflow stated for this model. Review motor interface for technical approval. Check the exact variant before ordering. |
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![]() RH35V-4EK.4F.VR 115589 | ZIEHL-ABEGG 230VAC 341W AC Centrifugal Fan for industrial automation RH35V-4EK.4F.VR 115589 is a 230 VAC centrifugal fan for packaging machinery. Its main supplied feature is ECblue motor and integrated-control technology referenced for this model. It also lists a 355 mm size specified in the upload data. Review housing geometry for retrofit assessment. |
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![]() RH35V-4EK.4F.VR 191735 | ZIEHL-ABEGG 230VAC 341W AC Centrifugal Fan for industrial automation RH35V-4EK.4F.VR 191735 is a 230 VAC centrifugal fan for packaging machinery. Its main supplied feature is a compact construction intended to simplify equipment integration. It also lists a 355 mm size specified in the upload data. Review controller compatibility for retrofit assessment. |
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![]() RH50M-4DK.6K.1R 127769 | ZIEHL-ABEGG 3~230/400VAC 1750W AC Centrifugal Fan for HVAC and ventilation RH50M-4DK.6K.1R 127769 is a 3~230/400 VAC centrifugal fan for air-conditioning systems. Its main supplied feature is 1750 W input power for the listed electrical version. It also lists a 500 mm size specified in the upload data. Review air direction for retrofit assessment. Check the exact variant before ordering. |
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![]() RH31M-4EK.2C.IR 109316 | ZIEHL-ABEGG 230VAC AC Centrifugal Fan for HVAC and ventilation RH31M-4EK.2C.IR 109316 brings a centrifugal fan format and 230 VAC rating to air-conditioning systems. Its representative supplied feature is a backward-curved impeller configuration. Key data also includes a 500 mm size specified in the upload data. Selection focus: fan selection during retrofit assessment. |
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![]() RE22P-2DK.3F.5R 131345 | ZIEHL-ABEGG 400VAC 310mm AC Centrifugal Fan for motor cooling For industrial buyers serving packaging machinery, RE22P-2DK.3F.5R 131345 is specified as a 400 VAC centrifugal fan. Its representative supplied feature is a forward-curved blade arrangement. Key data also includes a 310 mm size specified in the upload data. Selection focus: operating point during retrofit assessment. |
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The most reliable way to specify centrifugal Fan is to work from the system, not from the catalog. Measure or calculate the airflow and pressure demand first, add the dimensional limits of the mounting position, and only then shortlist series whose curves cover your operating point with margin.
Electrical matching is the next gate. Confirm the supply voltage — 12 V, 24 V or 48 V DC for compact electronics cooling, 115 V or 230 V AC for equipment and panel cooling — and decide whether you need speed control. EC models accept PWM or 0-10 V signals and report speed through a tachometer output, which makes them the default choice for variable-airflow systems, while AC units remain a cost-effective answer for fixed-speed duty.
Then filter by environment. High ambient temperature, dust or moisture loads dictate the IP rating and bearing choice — ball bearings keep airflow and noise stable over years, while sleeve bearings suit light-duty horizontal mounting. Regulatory needs such as UL, CE and RoHS recognition should be confirmed before the shortlist goes to purchasing, together with a maximum allowed sound pressure level in dBA.
End the process by checking supply, not just specification: confirm current stock, the lead time for follow-up quantities, and obtain datasheets and dimension drawings so the mechanical interface is verified before the PO. Send us your airflow and pressure requirements and our engineers will confirm the best-matched series — 467 products are available in this category today.
The daily work of our sales engineers is built around centrifugal Fan used in data center cooling, refrigeration and cold chain projects, building ventilation, telecom base stations, medical devices and industrial control cabinets — environments where a stopped fan is a stopped business process. That daily exposure to real installations is exactly what we bring back into every selection: not just reading curves, but knowing which models survive dust, heat, continuous duty and restricted service access.
A typical case: an equipment builder needed to replace an aging AC fan inside a control cabinet that could not be taken offline for more than an hour. By cross-referencing the frame dimensions, voltage and airflow curve, we supplied a current-series drop-in replacement with a matching tachometer signal, and the swap was completed during a scheduled maintenance window.
Refrigeration and cold chain customers bring us another pattern: the failed condenser fan is unavailable for weeks. Comparing diameter, speed, bearings and IP rating, we supply a functionally equivalent unit from stock so the system returns to duty the same week — the reason many service companies keep our contact number on file.
From one-piece emergency replacements to volume supply for equipment manufacturers, every ZIEHL-ABEGG enquiry is handled by the same rule: verify the parameters first, then quote — so what arrives on site is the fan the project actually needs.
Datasheets, performance curves, dimension drawings and certification files (UL, CE, RoHS where applicable) are available on request before you buy — we believe a purchase order should follow a verified selection, not replace it. For project tenders we can also provide product comparison tables that put the candidate models side by side on the parameters you care about.
Common series and mainstream voltage versions are normally in stock and can ship within a few working days; specialized or customized variants are produced to order and typically require additional production time. Send us the exact model or the required parameters and we will confirm stock, unit price and the earliest shipment date in one reply Currently 467 products in this category are listed online.
Yes. Replacement supply is one of our core services: we cross-reference the mounting dimensions, voltage, speed and performance curve of your installed unit and propose the closest current-series equivalent. Where the frame or connector differs slightly, we state the difference clearly before you order, so the replacement installs without surprises.
Bag
Bag packaging indicates that a specified quantity of product is packaged by the manufacturer in a bag, sealed pouch, or similar container and sold as a unit without repackaging. It is also used to describe kits/assortments where components are packaged in separate bags according to part number or parametric value, rather than in a compartmentalized box or similar rigid container.