What causes the fan to be too loud?

Check for loose screws causing vibration, dust buildup increasing resistance, or bearing type. Sleeve bearings are quiet but wear out; double-ball is durable but slightly louder.

How do I know if the fan is dying?

Listen for clicking/grinding, check RPM drops via software, or manually spin blades. Wobble or stiffness indicates worn bearings.

45X45X10mm 5/12V Universal Input Brushless DC Blower Fan for Telecommunication Base Station

Name: 45X45X10mm 5/12V Universal Input Brushless DC Blower Fan for Telecommunication Base Station
Brand: Fengxia Motor (Shanghai) Co., Ltd.
SKU: 2155689952

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

US$3.00

500-4,999 Pieces

US$2.50

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.

4510

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 Compatibility: Operates stably on 5V to 13V input, ensuring flexibility for various power sources.

High Durability Options: Available with sleeve, hydraulic, or double-ball bearings for 2-10 year lifespan.

Ultra-Quiet Operation: Designed for low noise with PWM control and vibration-reducing mounting options.

Full Customization Service: Supports OEM/ODM, custom designs, and sample-based modifications.

Professional Certification: Meets RoHS, ISO9001, CE, and FCC standards for quality assurance.

Versatile Application: Suitable for telecom, UAVs, automotive, medical, and consumer electronics.

Precise Speed Control: Features 3-pin DC and 4-pin PWM options for adjustable airflow and noise.

100% Quality Inspection: Every unit undergoes visual and functional testing 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: ≤3.50h

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

The motor has a wide voltage tolerance, running from 5V to 13V. It might not start below ~7V, but it operates within this range.

Q:How can I reduce fan noise?

Use rubber grommets instead of screws, lower voltage with a resistor, or adjust BIOS curves to keep RPM low until temperatures rise.

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

3-pin uses DC voltage control for fixed speeds. 4-pin uses PWM for automatic, precise, and quieter speed control. 4-pin fans run at full speed on 3-pin headers.

Q:How long will 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?

Follow the arrows on the frame. Generally, front/side is intake (cool air in), and rear/top is exhaust (hot air out).