What applications is this fan suitable for?

It is suitable for HVAC systems, grow tents, greenhouses, computers, and electrical appliances.

4 Inch Mixed Flow Inline Duct Fan

Name: 4 Inch Mixed Flow Inline Duct Fan
Brand: NINGBO LONGWELL ELECTRIC TECHNOLOGY CO., LTD.
SKU: 1929779595

Zhejiang, ChinaNINGBO LONGWELL ELECTRIC TECHNOLOGY CO., LTD.

US$13.00-16.00

300 Pieces

Sample price:US$25.00/piece.Request sample

Product profile

Customization

Available

Material

Plastic

Blade Material

Plastic

Model NO.

LWID-4 inch

Type

Centrifugal Fan

Electric Current Type

Mounting

Duct Fan

Certification

RoHS, ISO, CE, CCC

Fan

AC Forward Centrifugal Fan

Voltage

115V / 230V

Motor Type

AC Motor with Capacitor

Housing Material

Galvanized Metal

Diameter

120-200 Diameter

Wire Length

500mm or Customization

Label

OEM / ODM Available

Fan Speed Control

1-2-3 Speeds Available

Application

Ventilation ,Floor Heating , Cooling

Transport Package

Standard Exporting Packages

Specification

LWFA4E-180mm Series

Trademark

LONGWELL

Origin

China

HS Code

8415901000

Production Capacity

30000 PCS / Month

Key features

Wide Voltage Options: Supports 115V and 230V AC power for versatile global usage.

Premium Bearing System: Equipped with NSK/NMB ball bearings for smooth and durable operation.

OEM/ODM Service: Full customization available including labels, housing, and designs.

Multi-Scene Application: Ideal for HVAC, grow tents, greenhouses, and computer cooling.

Flexible Speed Control: Offers 1-2-3 speed settings to adjust airflow as needed.

Quality Assurance: 100% finished product inspection with visual and function checks.

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: ≤1.57h

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.