How do I know if the fan is dying?

Listen for clicking or grinding noises, check if RPM is much lower than specified using software, or manually check if blades spin freely without wobble.

What are the main markets for this product?

Main markets include Europe and domestic regions, with products sold in China, Europe, the US, South Korea, Japan, Russia, and Ukraine.

30X30X3mm Durable Hydro Bearing Brushless DC Blower Fan for Medical Ventilation Nebulizer

Name: 30X30X3mm Durable Hydro Bearing Brushless DC Blower Fan for Medical Ventilation Nebulizer
Brand: Fengxia Motor (Shanghai) Co., Ltd.
SKU: 2151754882

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

US$4.50

500-4,999 Pieces

US$4.00

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.

3003

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

Hydro Bearing Technology: Features durable hydro bearings for extended lifespan and quieter operation compared to sleeve bearings.

High Efficiency Cooling: Designed for efficient heat dissipation to ensure stable operation and extended service life of devices.

Multi-Scenario Application: Suitable for medical ventilation, nebulizers, UAVs, automotive, and communication equipment.

Quality Certified: ISO9001 certified with RoHS, CE, and FCC standards ensuring high quality at every stage.

Full Customization: Offers full customization from samples and designs to meet specific customer needs.

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 long will the fan last?

Hydro bearings last approximately 4-5 years, offering quieter operation and better sealing than sleeve bearings which last 2-3 years.

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

3-pin uses DC voltage control for fixed or stepped speeds, while 4-pin uses PWM for auto speed control, providing quieter and more precise operation.

Q:How can I make the fan quieter?

Use rubber pegs or grommets to reduce vibration, use a low-noise adapter to lower voltage, or adjust the BIOS fan curve to keep RPM low until temperatures rise.

Q:Which direction should the fan face?

Look for arrows on the frame: intake arrows point to cool air entering (front/side), and exhaust arrows point to hot air leaving (rear/top).

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

The motor has a wide tolerance and can run between 5V and 13V, though it might not start below approximately 7V.