How do I know if the fan is dying?

Listen for clicking or grinding noises, check RPM via software for significant drops, or power off and manually spin the blade to check for wobble or stiffness.

Can I connect the fan to the power supply?

Yes, connecting to a PSU Molex runs the fan at 12V full speed. However, using a motherboard header enables speed control, which is better for noise reduction.

What is the minimum order quantity?

The minimum order quantity is 30 sets.

505020mm Industrial Brushless Cooling Centrifugal DC Blower

Name: 50*50*20mm Industrial Brushless Cooling Centrifugal DC Blower
Brand: Fengxia Motor (Shanghai) Co., Ltd.
SKU: 2241833745

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

50*50*20mm Industrial Brushless Cooling Centrifugal DC Blower

US$2.50-3.00

1 Piece

Sample price:US$2.50/piece.Request sample

Product profile

Customization

Available

Material

Aluminum Fan

Blade Material

PBT 94ulv

Model NO.

5020A (Large-Bore) DC Blower

Type

DC Blower Fan

Electric Current Type

Mounting

Free Standing

Certification

RoHS, ISO, CE

Transport Package

Paper Box

Specification

50*50*20mm

Origin

China

Production Capacity

100000 Pieces/Year

Key features

Wide Voltage Tolerance: Operates reliably within 5V-13V range, ensuring compatibility with various power sources.

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

Customization Services: Full customization available from samples or designs to meet specific customer requirements.

Multi-Industry Application: Suitable for drones, automotive, communications, medical, and industrial control equipment.

International Certifications: Products certified with RoHS, ISO, CE, and FCC, ensuring high quality and safety standards.

Professional Quality Control: 100% finished product inspection including visual and functional checks by 4 QA inspectors.

Flexible Pin Configuration: Supports 3-pin (DC control) and 4-pin (PWM) options for precise speed and noise management.

Competitive Pricing: Offers high-quality cooling products with competitive prices and fast delivery times.

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: ≤3.87h

AI-Powered supplier vetting

SummaryThe supplier provides extensive customization options and has a strong research and development capability, including ODM services and new product development. However, they lack overseas warehouse and showroom capabilities, and do not have overseas agents or participate in trade shows. Their financial data is up-to-date and they hold an ISO9001:2015 certification. Despite having quality assurance processes, the manufacturing capacity seems limited with only two production lines and no ongoing volume reconciliation or outsourcing SOPs.

CertificationsHolds an ISO9001:2015 certificate, indicating compliance with quality management standards.

After-Sales capabilityHas clear procedures and records for handling customer complaints and implementing corrective actions.

Financial creditFinancial data is current, with information available up to the last three years, demonstrating financial stability.

R&D capabilityStrong R&D capabilities with evidence of new product development, though lacking in audit documentation.

Production capacityLimited production capability with only two production lines, and lacks ongoing volume reconciliation and outsourcing SOPs.

Customization capabilityOffers full customization services from samples and designs, with a comprehensive design service capability.

Client casesProvides OEM services for well-known brands, suggesting a history of working with reputable companies.

Product Q&A

Q:How can I reduce fan noise?

Use rubber grommets instead of metal screws, install an inline resistor to lower voltage, or adjust BIOS settings 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 variation controlled by the motherboard.

Q:How long does the fan last?

Lifespan depends on the bearing type: Sleeve bearings last 2-3 years, Hydraulic bearings last 4-5 years, and Double-ball bearings last 5-10 years.

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

Most motors have a wide tolerance range of 5V-13V. However, they may not start spinning if the voltage drops below approximately 7V.

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 usually rear/top. Push air toward the rear exhaust.