Frame size97 mm3.8 in
Max airflow21.6 m³/h13 CFM
Max static pressure53 Pa0.21 in. wg
Voltage24 V
Speed1,500 rpm
Input power4.8 W
Noise32.4 dB(A)

LWFD9733MD-05 DC Centrifugal Blower 97 mm

97 mm | DC | Max airflow 21.6 m³/h | Max static pressure 53 Pa | 32.4 dB(A)

SKU: LWFD9733MD-05 Categories: Cooling Fans & Blowers, DC Centrifugal Blowers, Frame Ø75–120 mm

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Samples in 1–3 days
Production 15–30 days
18-month warranty
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WhatsApp / Phone+86 183 5827 4663 E-mail an engineersales@longwellfans.com All files for LWFD9733MD-05drawings · curves · datasheet

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T/T 30 / 70 · FOB / CIF / DDP
100% tested · 18-month warranty
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Required airflow Required static pressure

Digitised from the catalogue curve at standard air (20 °C, 101.3 kPa, 1.2 kg/m³); one curve per voltage / speed grade. The system resistance curve depends on the actual ductwork — confirm the operating point on site. Need an engineer to verify the duty point? Contact us or add the model to your RFQ and note the duty point.

LWFD9733MD-05 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWFD9733MD-05 Performance curve (P-Q) — **Performance curve (P-Q)**Static pressure vs. airflow. Curve numbers correspond to supply voltage / speed grades.

Need a non-standard size or another format? Ask an engineer or search the download center.

LWFD9733MD-05 is a LONGWELL DC Centrifugal Blower from the DC Centrifugal Blowers range, frame size 97 mm, rated 24 V DC, maximum airflow 21.6 m³/h, maximum static pressure 53 Pa, noise 32.4 dB(A), input power 4.8 W. The low-voltage brushless DC motor suits battery-powered equipment and electronics cooling with speed control on demand.

Technical data

Model	LWFD9733MD-05
Series	LWFD9733
Motor type	DC
Rated voltage	24 V
Current	0.2 A
Input power	4.8 W
Speed	1,500 rpm
Max. airflow	21.6 m³/h
Max. static pressure	53 Pa
Noise	32.4 dB(A)
Frame size	97 mm
Dimensions	97x33mm
Impeller material	Plastic(UL94-VO)

Typical applications

Power supplies and inverters
Telecom and server cabinets
Battery packs and EV chargers
Medical and laboratory equipment

Series LWFD9733: models in the same series share the impeller and motor platform and differ in speed grade, voltage or lead-out / terminal-box configuration — compare them in the table below or ask for the best fit at your duty point.

Nameplate values: maximum airflow is measured at zero static pressure and maximum static pressure at zero airflow; the two never occur together. Confirm the operating point on the performance curve. Final selection is subject to the duty point (airflow / static pressure / voltage / control mode) and project verification.

Alternatives with the same frame size (97 mm · DC)

Same impeller, different speed grade, power or wiring. Step up for more airflow, step down for lower noise.

Model	Max airflow	Max static pressure	Speed	Power	Noise	Voltage
LWFD9733MD-05 this model	21.6 m³/h	53 Pa	1,500 rpm	4.8 W	32.4 dB(A)	24 V
LWFD9733HD-05	21.6 m³/h	53 Pa	1,500 rpm	4.8 W	32.4 dB(A)	48 V	View
LWFD9733LD-05	21.6 m³/h	53 Pa	1,500 rpm	3.6 W	32.4 dB(A)	12 V	View
LWFD9733HL-04	29.4 m³/h	94 Pa	2,000 rpm	7.2 W	38.7 dB(A)	48 V	View
LWFD9733ML-04	29.4 m³/h	94 Pa	2,000 rpm	7.2 W	38.7 dB(A)	24 V	View
LWFD9733LL-04	29.4 m³/h	94 Pa	2,000 rpm	4.8 W	38.7 dB(A)	12 V	View
LWFD9733HM-03	36.6 m³/h	147 Pa	2,500 rpm	9.6 W	43.5 dB(A)	48 V	View
LWFD9733MM-03	36.6 m³/h	147 Pa	2,500 rpm	9.6 W	43.5 dB(A)	24 V	View
LWFD9733LM-03	36.6 m³/h	147 Pa	2,500 rpm	7.2 W	43.5 dB(A)	12 V	View
LWFD9733HH-02	43.8 m³/h	212 Pa	3,000 rpm	14.4 W	47.5 dB(A)	48 V	View
LWFD9733MH-02	43.8 m³/h	212 Pa	3,000 rpm	12 W	47.5 dB(A)	24 V	View
LWFD9733LH-02	43.8 m³/h	212 Pa	3,000 rpm	9.6 W	47.5 dB(A)	12 V	View
LWFD9733HX-01	51 m³/h	288 Pa	3,500 rpm	19.2 W	50.8 dB(A)	48 V	View
LWFD9733MX-01	51 m³/h	288 Pa	3,500 rpm	14.4 W	50.8 dB(A)	24 V	View
LWFD9733LX-01	51 m³/h	288 Pa	3,500 rpm	12 W	50.8 dB(A)	12 V	View