How do I know if the fan is failing?

Listen for clicking or grinding noises indicating bearing failure. Check RPM using software like HWMonitor; significantly lower RPM than specified or physical wobble/stiffness when spinning manually are key signs.

Can I connect the fan to a power supply instead of the motherboard?

Yes, connecting to a PSU Molex connector runs the fan at 12V full speed, which is simple but noisier. Motherboard headers enable speed control, especially with 4-pin PWM fans.

What is the minimum order quantity (MOQ)?

The minimum order quantity is 30 sets.

50508mm High Static Pressure Mini DC Blower Fan for Air Purifier

Name: 50*50*8mm High Static Pressure Mini DC Blower Fan for Air Purifier
Brand: Fengxia Motor (Shanghai) Co., Ltd.
SKU: 2152341062

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

50*50*8mm High Static Pressure Mini DC Blower Fan for Air Purifier

US$2.00

500-4,999 Pieces

US$1.10

5,000+ Pieces

Sample price:US$4.00/piece.Request sample

Product profile

Customization

Available

Material

Plastic-Iron-Copper-Magnet

Blade Material

PBT 94ulv

Model NO.

5008

Type

DC Blower Fan

Electric Current Type

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

Key features

High Static Pressure Design: Optimized for air purifiers and devices requiring strong airflow against resistance.

Ultra-Quiet Operation: Features low-noise bearings and optimized blade design for silent performance.

Wide Voltage Compatibility: Operates effectively within a 5V-13V range, supporting 3-pin and 4-pin PWM control.

High Durability & Long Life: Double-ball bearings offer 5-10 years lifespan; sleeve bearings last 2-3 years.

Compact & Portable: Small 50x50x8mm size fits easily into notebooks, UAVs, VR headsets, and mini devices.

Full Customization Available: Supports OEM/ODM services with customization from samples, designs, or full specs.

Certified Quality: ISO9001, CE, RoHS, and FCC certified ensuring safety and environmental compliance.

Professional Manufacturer: Established in 2016 with 4 R&D engineers and 100% finished product inspection.

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: ≤3.50h

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 screws to dampen vibration, install a low-noise adapter to lower voltage, or adjust the BIOS fan curve to keep RPM low until temperatures rise.

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 control. A 4-pin fan on a 3-pin header runs at full speed.

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 can last 5-10 years under 24/7 operation.

Q:Which direction should the fan face?

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

Q:Why does the fan spin at 5V if the label says 12V?

The motor has a wide voltage tolerance (5V-13V). It may run at 5V but might not start if the voltage drops below approximately 7V.