Frame size75 mm3.0 in
Max airflow16.2 m³/h10 CFM
Max static pressure121 Pa0.49 in. wg
Voltage24 V
Speed3,000 rpm
Input power6 W
Noise41.9 dB(A)

LWFD7525ML-04 DC Centrifugal Blower 75 mm

75 mm | DC | Max airflow 16.2 m³/h | Max static pressure 121 Pa | 41.9 dB(A)

SKU: LWFD7525ML-04 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 LWFD7525ML-04drawings · curves · datasheet

Samples 1–3 days · fee credited to your order
From ~30 pcs for a first validation order
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.

LWFD7525ML-04 Dimensional drawing — **Dimensional drawing**Dimensions in mm. Confirm against the final approval drawing before machining cut-outs.

LWFD7525ML-04 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.

LWFD7525ML-04 is a LONGWELL DC Centrifugal Blower from the DC Centrifugal Blowers range, frame size 75 mm, rated 24 V DC, maximum airflow 16.2 m³/h, maximum static pressure 121 Pa, noise 41.9 dB(A), input power 6 W. The low-voltage brushless DC motor suits battery-powered equipment and electronics cooling with speed control on demand.

Technical data

Model	LWFD7525ML-04
Series	LWFD7525
Motor type	DC
Rated voltage	24 V
Current	0.25 A
Input power	6 W
Speed	3,000 rpm
Max. airflow	16.2 m³/h
Max. static pressure	121 Pa
Noise	41.9 dB(A)
Frame size	75 mm
Dimensions	75x25mm
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 LWFD7525: 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 (75 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
LWFD7525ML-04 this model	16.2 m³/h	121 Pa	3,000 rpm	6 W	41.9 dB(A)	24 V
LWFD7530HD-05	15 m³/h	95 Pa	2,500 rpm	4.8 W	37.8 dB(A)	48 V	View
LWFD7530MD-05	15 m³/h	95 Pa	2,500 rpm	4.8 W	37.8 dB(A)	24 V	View
LWFD7530LD-05	15 m³/h	95 Pa	2,500 rpm	3.6 W	37.8 dB(A)	12 V	View
LWFD7530HL-04	18 m³/h	136 Pa	3,000 rpm	7.2 W	41.8 dB(A)	48 V	View
LWFD7530ML-04	18 m³/h	136 Pa	3,000 rpm	6 W	41.8 dB(A)	24 V	View
LWFD7530LL-04	18 m³/h	136 Pa	3,000 rpm	4.8 W	41.8 dB(A)	12 V	View
LWFD7530HM-03	21 m³/h	185 Pa	3,500 rpm	9.6 W	45.1 dB(A)	48 V	View
LWFD7530MM-03	21 m³/h	185 Pa	3,500 rpm	7.2 W	45.1 dB(A)	24 V	View
LWFD7530LM-03	21 m³/h	185 Pa	3,500 rpm	6 W	45.1 dB(A)	12 V	View
LWFD7530HH-02	24 m³/h	242 Pa	4,000 rpm	12 W	48 dB(A)	48 V	View
LWFD7530MH-02	24 m³/h	242 Pa	4,000 rpm	8.4 W	48 dB(A)	24 V	View
LWFD7530LH-02	24 m³/h	242 Pa	4,000 rpm	7.2 W	48 dB(A)	12 V	View
LWFD7530HX-01	27 m³/h	306 Pa	4,500 rpm	14.4 W	50.6 dB(A)	48 V	View
LWFD7530MX-01	27 m³/h	306 Pa	4,500 rpm	9.6 W	50.6 dB(A)	24 V	View