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BLDC Motor · 5/12/24/48V · IP68 Option

172mm DC Axial Fans Manufacturer

4 BLDC axial fan models (43 part numbers) in the 172mm frame, from MAX FLOW. Airflow 160.8–532.1 CFM, up to 116.2 mmH2O static pressure, 46–90 dB(A). Each model has a datasheet with P-Q curve and dimensions.

172mmSize Range
4Voltages
PWMSpeed Control
4Signals (PWM/FG/RD/LD)

172mm DC axial fans from MAX FLOW

MAX FLOW has supplied industrial cooling fans since 1984. This page lists our 172mm DC brushless (BLDC) axial fans: 4 models and 43 part numbers across 25/51 mm frame depths, in 12V, 24V, 48V DC. Airflow ranges from 160.8 to 532.1 CFM, speed from 2400 to 9200 RPM and noise from 46 to 90 dB(A), so you can match the fan to the static pressure and noise budget of your equipment. Control options include PWM speed control, FG tachometer feedback and RD lock-alarm output, and IP55 or IP68 waterproof variants are available on select models. Custom voltage, speed and wiring are available on request.

Not sure which 172mm fan fits? Read How to Choose an Industrial DC Cooling Fan, How to Read a Fan P-Q Curve, or use the Product Finder to filter by voltage, airflow and bearing type. All DC fans: DC Fan overview.

Related Technical Guides

ComparisonDC vs EC vs AC Fan: Which One? Buyer's GuideHow to Choose a DC Cooling Fan TechnicalPWM vs 0-10V vs FG Control Signals TechnicalHow to Read a Fan P-Q Curve

DC axial fans by size: 80mm 92mm 120mm 140mm 172mm All sizes

172mm DC Axial Fans

MFD17225

MFD17225

172x150x25mm

Airflow 160.77~290.64 CFM
Noise 46~61.5 dB(A)
Speed 2400~4000 RPM
View Datasheet
MFD17251

MFD17251

172x150x51mm

Airflow 209.4~361.69 CFM
Noise 58.3~71.4 dB(A)
Speed 3000~5000 RPM
View Datasheet
MFD17251E

MFD17251E

172x150x51mm

Airflow 532.07 CFM
Noise 90 dB(A)
Speed 9200 RPM
View Datasheet
MFD17251R

MFD17251R

172x150x51mm

Airflow 209.4~361.69 CFM
Noise 58.3~71.4 dB(A)
Speed 3000~5000 RPM
View Datasheet

172mm DC axial fan selection data

FrameModelsVoltagesAirflow (CFM)Max static pressure (mmH2O)Noise (dB(A))
172 x 150 x 25 mm112V, 24V, 48V160.8–290.620.946–61.5
172 x 150 x 51 mm312V, 24V, 48V172.2–532.1116.256.1–90

How to choose a 172mm DC axial fan

  • Highest airflow: MFD17251E (48V) delivers 532.1 CFM at 9200 RPM and 90 dB(A), with 116.2 mmH2O static pressure.
  • Quietest: MFD17225 (12V) runs at 46 dB(A) with 160.8 CFM at 2400 RPM.
  • Thickness matters: the 25mm-deep fans reach up to 290.6 CFM and 20.9 mmH2O, while the 51mm-deep fans reach up to 532.1 CFM and 116.2 mmH2O. Choose the thinner frame when space is tight and the thicker frame when static pressure is the constraint.
  • Voltage: 12V / 24V / 48V DC rails are available across the 172mm range (check each datasheet, since not every model comes in every voltage).

Bearing, operating temperature and life

Bearing options: Ball Bearing. Operating temperature: Ball Bearing: -10 ~ 70°C. Life expectancy: Ball Bearing: 50,000 hours at 25°C. For continuous 24/7 operation in warm equipment, ball bearings are the usual choice; sleeve bearings suit cooler, cost-sensitive or low-vibration applications. See How to Choose an Industrial DC Cooling Fan for the full 9-step selection framework.

172mm DC axial fan FAQ

What voltages are available for 172mm DC axial fans?

MAX FLOW 172mm DC axial fans are offered in 12V, 24V, 48V DC. Not every model is available in every voltage, so confirm the rated voltage on the datasheet of the model you choose.

How much airflow does a 172mm DC axial fan deliver?

Across MAX FLOW 172mm DC axial fans, maximum airflow ranges from 160.8 to 532.1 CFM depending on model, thickness and speed. The highest is MFD17251E at 532.1 CFM.

Which 172mm DC axial fan is the quietest?

The quietest rated variant is MFD17225D1-LB at 46 dB(A) (160.8 CFM, 2400 RPM). Noise rises with speed, so pick the lowest speed that still meets your airflow and static pressure requirement.

Where can I find the P-Q curve and dimensions of a 172mm DC axial fan?

Every model listed on this page links to a datasheet with the dimension drawing, P-Q curve and the full part number table.

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