What causes loud fan noise?

Loose screws causing vibration, dust buildup increasing air resistance, or bearing type. Sleeve bearings are quiet but wear out; double-ball lasts longer but is slightly louder.

Is more blade count better?

More blades provide higher static pressure but are slightly louder. Fewer blades offer higher airflow and lower noise. A balance of 7-9 blades is typical.

35X35X5mm Lightweight Mini DC Blower Fan for Beauty Instrument Cooling

Name: 35X35X5mm Lightweight Mini DC Blower Fan for Beauty Instrument Cooling
Brand: Fengxia Motor (Shanghai) Co., Ltd.
SKU: 2154995152

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

US$3.60

500-4,999 Pieces

US$3.30

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.

3505

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

Wide Voltage Tolerance: Operates stably within a 5V to 13V voltage range for versatile power compatibility.

Multiple Bearing Options: Available in sleeve, hydraulic, and double-ball bearings for varied lifespan and noise needs.

Ultra-Quiet Operation: Designed for low noise with options for RPM adjustment and vibration-reducing mounts.

High Durability: Double-ball bearings last 5-10 years, suitable for 24/7 continuous operation.

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

Certified Quality: ISO9001 certified with FCC, CE, and RoHS compliance ensuring high safety standards.

Versatile Application: Ideal for notebooks, projectors, UAVs, VR headsets, and various industrial scenarios.

Compact Design: Lightweight 35x35x5mm mini size with efficient heat dissipation for space-constrained devices.

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: ≤4.25h

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:Why does the fan spin at 5V when labeled 12V?

The motor has a wide voltage tolerance, operating between 5V and 13V. It might not start below approximately 7V.

Q:How can I reduce fan noise?

Use rubber grommets instead of screws, install an inline resistor or 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?

Sleeve bearings last 2-3 years; hydraulic bearings last 4-5 years; double-ball bearings last 5-10 years and tolerate 24/7 operation.

Q:Which direction should the fan face?

Check arrows on the frame: intake (cool air in) is usually front/side, and exhaust (hot air out) is rear/top. Tower coolers push air toward the rear exhaust.