How do I know if the fan is dying?

Listen for clicking or grinding noises, check RPM via software for significant drops below specs, or manually spin the blade to check for wobble or stiffness.

Can I connect the fan to the power supply?

Yes, connecting to a PSU Molex runs the fan at 12V full speed, which is simple but louder. Motherboard headers allow for speed control.

Does more blades mean better performance?

More blades increase static pressure (good for radiators) but may be louder. Fewer blades provide higher airflow (good for ventilation) with lower noise.

808025mm High Speed Big Airflow Axial Flow Cooling DC Fan

Name: 80*80*25mm High Speed Big Airflow Axial Flow Cooling DC Fan
Brand: Fengxia Motor (Shanghai) Co., Ltd.
SKU: 2243783045

Shanghai, ChinaFengxia Motor (Shanghai) Co., Ltd.

80*80*25mm High Speed Big Airflow Axial Flow Cooling DC Fan

US$2.50-3.00

1 Piece

Sample price:US$2.50/piece.Request sample

Product profile

Customization

Available

Material

Aluminum Fan

Blade Material

PBT 94ulv

Model NO.

8025 DC Fan

Type

Axial Fan

Electric Current Type

Mounting

Free Standing

Certification

RoHS, ISO, CE

Transport Package

Paper Box

Specification

80*80*25mm

Origin

China

Production Capacity

100000 Pieces/Year

Key features

High Speed & Airflow: 80*80*25mm axial fan designed for high-speed operation and big airflow cooling performance.

Durable Materials: Constructed with Aluminum fan frame and PBT 94ulv blades for stability and heat resistance.

Multiple Bearing Options: Available in sleeve, hydraulic, and double-ball bearings with lifespans from 2 to 10 years.

Wide Voltage Tolerance: Operates effectively within a 5V-13V range, ensuring compatibility with various power sources.

Full Customization: Supports full customization from samples and designs, including OEM and ODM services.

International Certifications: Products certified with RoHS, ISO, CE, and FCC, ensuring high quality and safety standards.

Flexible Control: Supports both 3-pin DC voltage control and 4-pin PWM for precise and quiet speed adjustment.

100% Quality Inspection: Every finished product undergoes strict visual and functional inspection before shipment.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Fengxia Motor (Shanghai) Co., Ltd.

Shanghai, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 5 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤3.28h

AI-Powered supplier vetting

SummaryThe supplier demonstrates strong customization, R&D, OEM/ODM, quality-control, and complaint-handling capabilities. It reports new products within the past year, provides customization from samples and designs through full customization, and serves known brands through OEM. Production includes two lines, inventory capability, defined inspection procedures, and four QA/QC inspectors. However, important operational limitations exist: no available SDK, no overseas agents, branches, warehouse, or showroom, no offline trade-show participation, and only one experienced export-trade employee. Manufacturing controls also show gaps, including no ongoing quantity reconciliation for each batch and no standard operating procedure for outsourced manufacturing. Financial evidence is represented only by years rather than substantive indicators, so credibility cannot be determined. The supplier holds an ISO9001:2015 certificate, but the available information does not establish broader certification coverage.

Supplier typeThe supplier operates as a manufacturer with two production lines, provides OEM and ODM services, offers inventory capability, and accepts FOB and EXW quotations. It also provides full customization, but lacks overseas agents, branches, warehouses, and showrooms.

CertificationsThe supplier reports an ISO9001:2015 certificate. No additional specific certifications are identified in the provided information.

After-Sales capabilityThe supplier has documented and followed procedures for customer complaints and corrective/preventive actions, supporting an established service-response process. However, it has no overseas agents, branches, warehouse, or showroom, which limits demonstrated overseas service infrastructure.

R&D capabilityThe supplier reports new products in the past year, provides ODM services, and assigns R&D personnel to product development, design drawings, production support, and specifications. Nevertheless, it has no available SDK and no design input, output, review, validation, or confirmation documents available for audit.

Production capacityProduction evidence includes two production lines, inventory capability, one-month average lead times in both peak and off-season periods, four QA/QC inspectors, written finished-product inspection instructions, and multiple listed production machines. Controls are weakened by the absence of ongoing batch quantity reconciliation and a standard operating procedure for outsourced manufacturing.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, and full customization, with the same capability reported under both R&D and design services. This directly demonstrates broad customization coverage.

Product Q&A

Q:How can I reduce fan noise?

Use rubber grommets instead of metal screws to reduce vibration, use a low-noise adapter to drop voltage, or lower RPM via BIOS settings.

Q:What is the difference between 3-pin and 4-pin fans?

3-pin fans use DC voltage control for fixed or stepped speeds. 4-pin fans use PWM for automatic, precise, and quieter speed variation controlled by the motherboard.

Q:How long does the fan last?

Lifespan depends on the bearing type: Sleeve bearings last ~2-3 years, hydraulic bearings ~4-5 years, and double-ball bearings 5-10 years.

Q:Which direction should the fan face?

Check the arrows on the frame. Generally, front/side fans are for intake (cool air in), and rear/top fans are for exhaust (hot air out).

Q:Why does the fan spin at 5V if it is labeled 12V?

Most motors have a wide tolerance range of 5V-13V. However, they may not start spinning reliably below approximately 7V.