90X90X38mm Compact High Efficiency DC Axial Flow Fan for Industrial Ventilation

• Overview
• Product Description
• Specification
• Packing & Delivery
• FAQ

Overview

Basic Info.

Model NO.	FD9038
Type	DC Axial Flow Fan
Electric Current Type	DC
Mounting	Free Standing
Certification	RoHS, ISO, CE
Insulation Resistance	10mωor Over with at DC250V Megger
Ielectric Withstand Voltage	AC500V1s
Ambient Temperature	-10℃~+70℃(Operating) -40℃~+70℃(Storage)
Expected Life	+40° ,30000 Hours
Transport Package	Paper Box
Specification	Customized
Trademark	FUNSHARE
Origin	China
Production Capacity	100000 Pieces/Year

Packaging & Delivery

Package Size20.00cm * 20.00cm * 10.00cm Package Gross Weight2.500kg

Product Description

Product Description

Axial Flow FanOur cooling fan series covers professional models tailored for different devices, including notebooks, projectors, UAVs, miniature electronic devices and VR headsets. All fans feature efficient heat dissipation performance to ensure the stable operation and extended service life of the equipped devices, with common advantages such as compact or portable design, ultra-quiet operation, high durability and strong adaptability, suitable for various daily, office, industrial and entertainment scenarios.Specification

Fengxia Motor (Shanghai) Co., LtdFengxia Motor (Shanghai) Co., Ltd., based in Shanghai, China, excels in the research, design, production, and sales of cooling fans. Our micro fans, DC fans, AC fans, centrifugal blowers, and waterproof fans are used in industries like UAVs, automotive, communication equipment, medical, and more. Sizes range from 15mm to 250mm, sold in China, Europe, the US, South Korea, Japan, Russia, Ukraine, etc.

Wind Down Motor Company follows standardized management and production, ensuring long-term product quality with complete testing equipment. We customize products to customer needs, aiming to provide top service. Quality is our enterprise's life. We meet customer needs with quality, competitive prices, and fast delivery.

ISO9001 certified, our products meet FCC, CE, ROHS standards, enhancing quality at every stage. With strong design and research, full customization, expert guidance, and various sizes/specs, we offer high-quality cooling products.

Wind Down Motor Company embodies "constant innovation, quality as the soul," ensuring efficient integration with customer products.

Our philosophy: Technology creates quality, integrity shapes the future, and service is life! We aim to reach new heights with you!

Packing & Delivery

FAQ
1. The fan is too loud—what can I do?
Check mounting: Loose screws cause vibration noise.
Remove dust: Build-up increases air resistance and noise.
Lower RPM: Use BIOS or software (e.g., SpeedFan) to reduce speed.
Bearing type: Sleeve bearings start quiet but wear out; double-ball lasts longer and is slightly louder; hydraulic is a good middle-ground.

2. Fan won't spin or starts/stops intermittently
Power check: Ensure the 3-pin/4-pin connector is fully seated.
Fan-stop mode: Boards may shut off fan below ~40 °C; this is normal.
Bearing wear: Sleeve types may not start when oil dries—replace the fan.3. Which direction should the fan face?
Look for arrows: Printed on the frame (→ exhaust, ← intake).
General rule:
– Front/side: intake (cool air in).
– Rear/top: exhaust (hot air out).
– Tower coolers: push air toward the rear exhaust.

4. 3-pin vs. 4-pin difference?
3-pin: DC voltage control, fixed or stepped speeds.
4-pin: PWM, auto speed control for quieter, precise operation.
Compatibility: 4-pin on 3-pin header runs full-speed/DC only.

5. How long will the fan last?
Sleeve bearing: ~2–3 years, less in dust/heat.
Hydraulic bearing: ~4–5 years, quieter and better sealed.
Double-ball bearing: 5–10 years, 24/7 tolerant.

6. How can I make the fan quieter?
Use rubber pegs/grommets instead of screws to reduce vibration.
Use inline resistor cable or "low-noise adapter" to lower voltage (airflow reduces).
Adjust BIOS fan curve: keep RPM low until temperature increases.

7. Connect to motherboard or power supply?
Motherboard header: enables speed control, best with 4-pin PWM.
PSU Molex: runs at 12 V full speed, simple but noisy.
Splitter okay: keep ≤ 1 A total per header (3–4 fans).

8. The label says 12 V—why does it still spin at 5 V?
Wide tolerance: motors run 5 V–13 V, might not start < ~7 V.

9. More blades = better?
More blades: higher static pressure, slightly louder.
Fewer blades: higher airflow, lower noise.
Typical balance: 7–9 blades.

10. How do I know the fan is dying?
Listen: clicking/grinding = bearing failure.
Check RPM: use HWMonitor; much lower than spec (e.g., 300 RPM vs. 1200 RPM) signals issues.
Power off and flick: blade should spin freely; wobble/stiffness signals worn bearings.