How can the fan speed be controlled?

Speed control is supported via 0-10V or PWM control systems.

What is the minimum order quantity?

The minimum order quantity is 100 pieces.

30mm DC 12V 24V Cross Flow Fan for Cooling System

Name: 30mm DC 12V 24V Cross Flow Fan for Cooling System
Brand: NINGBO LONGWELL ELECTRIC TECHNOLOGY CO., LTD.
SKU: 2036149465

Zhejiang, ChinaNINGBO LONGWELL ELECTRIC TECHNOLOGY CO., LTD.

US$17.00

100-299 Pieces

US$16.00

300-499 Pieces

US$15.00

500+ Pieces

Sample price:US$23.00/piece.Request sample

Product profile

Customization

Available

Material

Aluminum

Usage

for Experiment, for Air Conditioner, for Manufacture, for Refrigerate

Model NO.

Cross Flow Fan

Flow Direction

Cross Flow

Pressure

Medium Pressure

Certification

RoHS, UR, ISO, CE

Trademark

longwell

Origin

China

Production Capacity

50000pieces/Year

Key features

30mm aluminum alloy blade in nominal lengths of 90mm, 120mm, 190mm, 250mm, 290mm, and 350mm for compact cooling system fits.

Runs on 12V, 24V, or 48V DC with 0-10V or PWM speed control for precise airflow adjustment.

Steel and aluminum alloy housing paired with ball bearings, rated -25 to +60 deg C for continuous operation.

Sized for cooling systems, air conditioners, lab experiments, and manufacturing equipment needing a compact 30mm airstream.

Full or minor customization from your samples or designs available across the 30mm cross flow fan lineup.

Samples in 1-3 weeks, first batch in 30-45 days, with impeller length and voltage configured to your cooling system design.

Company profile

Cooperated with Fortune 500Self-brandedExhibition ExperienceManagement Certification

NINGBO LONGWELL ELECTRIC TECHNOLOGY CO., LTD.

Zhejiang, 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: 6 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤1.75h

AI-Powered supplier vetting

SummaryThe supplier is a China-based HVACR manufacturer offering OEM/ODM services, product customization, and stated 24/7 after-sales support. It reports annual production capacity for cross-flow, centrifugal, and axial fans, supported by cutting, laser-cutting, bending, rolling, and punching equipment. The supplier holds product, management-system, and social-responsibility certifications, and reports overseas service resources including an overseas warehouse, showroom, agents or branches, and participation in the Climate World trade show. Evidence of innovation is positive through recent new-product development and ODM services. Customer references are also favorable, including cooperation with Fortune 500 companies and an 80%–100% repeat-buyer preference. However, service-management procedures lack supporting records, and no approved supplier list is maintained. Financial information is insufficient to assess credibility because the slices provide only reporting years, not financial performance values.

Supplier typeThe supplier operates from Zhejiang, China, and its stated business scope covers manufacturing and processing of hardware tools, electronic components, plastic products, and mechanical and electrical equipment, along with technology R&D, design, and sales. Its company overview specifically positions it as an HVACR OEM/ODM solution provider.

CertificationsThe supplier reports FCC, CE, RoHS, and other product certifications, ISO9001:2015, ISO45001:2018, and ISO14001 management-system certifications, plus BSCI social-responsibility certification. These certifications provide explicit evidence of compliance and management-system coverage.

After-Sales capabilityThe supplier states that it provides 24/7 after-sales service and offers overseas debugging, maintenance, repair, training, and equipment installation in Russia. It also reports an overseas warehouse, showroom, agents or branches, and trade-show participation; however, the slices do not verify service performance outcomes.

R&D capabilityThe supplier reports new products during the past year, provides ODM services, and lists technology research and development, technical consulting, technology transfer, and design within its business scope. It does not provide an SDK, but that limitation is not sufficient to negate the broader evidence of product and technical R&D capability.

Production capacityReported annual productivity is 200,000 cross-flow fans, 300,000 centrifugal fans, and 200,000 axial fans. The supplier also lists cutting, laser-cutting, bending, rolling-and-bending, and punching equipment, supporting a demonstrated manufacturing base.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. These services are reported both as an R&D/design capability and as a general design-services capability.

Client casesThe supplier reports providing OEM services for well-known brands and having cooperated with Fortune 500 companies. It also reports an 80%–100% repeat-buyer preference, although no customer names, project details, or independently verifiable case records are provided.

Product Q&A

Q:What voltage options are available for this fan?

The DC cross flow fans are compatible with 12V, 24V, and 48V power supplies.

Q:Can the fan dimensions be customized?

Yes, the impeller diameter ranges from 25mm to 150mm, and lengths from 76mm to 1200mm, including single, double, and triple types.

Q:What type of bearings are used in the fan?

We offer high-quality NMB or NSK ball bearings to ensure long life and reliability.

Q:Is OEM or ODM service available?

Yes, we provide OEM and ODM services, including full customization from samples or designs.

Q:What certifications does the product have?

RoHS on applicable models; ISO 9001 certified quality system. Tell us your destination market and we will confirm the certificate for the exact model before you order.