DC Blower 20204mm High Efficiency Axial Fan From China

Name: DC Blower 20*20*4mm High Efficiency Axial Fan From China
Brand: Fengxia Motor (Shanghai) Co., Ltd.
SKU: 2130197492

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

DC Blower 20*20*4mm High Efficiency Axial Fan From China

US$2.30-2.90

1,000 Pieces

Sample price:US$2.50/piece.Request sample

Product profile

Customization

Available

Material

Aluminum Fan

Blade Material

PBT 94ulv

Model NO.

2004 DC Blower

Type

DC Blower Fan

Electric Current Type

Mounting

Free Standing

Certification

RoHS, ISO, CE

Transport Package

Paper Box

Specification

20*20*4mm

Origin

China

Production Capacity

100000 Pieces/Year

Key features

Wide Voltage Tolerance: Operates reliably from 5V to 13V, with startup threshold around 7V.

Multiple Bearing Options: Choose Sleeve (2-3 years), Hydraulic (4-5 years), or Double-Ball (5-10 years).

Customization Services: Supports full customization from samples, designs, or complete custom requirements.

Dual Pin Compatibility: 4-pin fans fit 3-pin headers, offering DC voltage control or PWM auto-speed.

Durable Material Build: Constructed with Aluminum Fan housing and PBT 94ulv Blade material.

Global Certification: Meets RoHS, ISO, CE, and FCC standards for international markets.

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

Competitive Lead Time: Standard one-month delivery for both peak and off-peak seasons.

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: ≤3.02h

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:3-pin vs. 4-pin difference?

3-pin: DC voltage control, fixed/stepped speeds. 4-pin: PWM, auto speed control (quieter, precise). Compatibility: 4-pin fits 3-pin header, full-speed or DC only.

Q:How can I make the fan quieter?

Use rubber pegs/grommets to reduce vibration. Inline resistor or 'low-noise adapter' to reduce voltage (less airflow). Smooth fan curve in BIOS: keep RPM low until temp rises.

Q:How do I know the fan is dying?

Listen: clicking/grinding = bearing failure. Check RPM: use HWMonitor; low RPM is a red flag. Power off and flick: free spin means good, wobble/stiffness means worn.