How do you optimize packaging for international shipping?

We focus on volume optimization for shipping to help manage your inventory pressure and logistics costs. Our refined packaging ensures maximum container space utilization without compromising safety.

Do you offer technical consultation for system integration?

Yes, we provide free technical consultation. Our engineers help with system integration and fan selection at your operating point: airflow, static pressure, voltage and control.

What is the minimum order quantity for customized products?

Standard products have flexible minimums for testing; customized orders may need a minimum volume to cover setup. Please contact our sales team for exact details.

Mixed Flow Inline Duct Fan Plastic Housing Silent Operation High Efficiency Air Blower for Duct Ventilation Air Circulation Systems OEM

Name: Mixed Flow Inline Duct Fan Plastic Housing Silent Operation High Efficiency Air Blower for Duct Ventilation Air Circulation Systems OEM
Brand: NINGBO LONGWELL ELECTRIC TECHNOLOGY CO., LTD.
SKU: 2321815845

Zhejiang, ChinaNINGBO LONGWELL ELECTRIC TECHNOLOGY CO., LTD.

US$24.36-30.00

100 Pieces

Sample price:US$31.67/piece.Request sample

Product profile

Customization

Available

Material

PP+20GF

Blade Material

Plastic

Type

Centrifugal Fan

Electric Current Type

Mounting

Duct Fan

Certification

RoHS, ISO, CE, CCC

Fan

Ec Plastic Inline Duct Fan

Voltage

100-240V

Motor Type

Ec Motors

Operation Temperature

-10℃ - +60℃

Diameter

4'' - 8''

Wire Length

500mm or Customization

Label

OEM / ODM Available

Speed Control

Stepless Speed Controller

Application

Applicable for Home, Commercial, Industrial, and a

Transport Package

Standard Exporting Packages

Specification

EC Plastic Inline Duct Fan

Trademark

LONGWELL

Origin

China

HS Code

8415901000

Production Capacity

30000 PCS / Month

Key features

EC Motor Technology: Energy-efficient EC motor with stepless speed control for optimal performance.

Noise Data: Noise depends on size, speed and installation; we confirm noise data for the selected model at your operating point before order.

Wide Voltage Range: Supports 100-240V AC for global compatibility and stable operation.

Durable Material: Constructed with PP+20GF plastic for corrosion resistance and longevity.

Multi-Scenario Use: Ideal for home, commercial, industrial, and agricultural ventilation systems.

OEM/ODM Services: Full customization available including labels, wire length, and designs.

Certifications: CE, RoHS and CCC on applicable models; ETL on selected models; ISO 9001 certified quality system; we confirm the certificate for your exact model and market before order.

Flexible Sizing: Available in 4 to 8-inch diameters to fit various duct systems.

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: ≤2.44h

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:Do you support OEM and ODM services for this duct fan?

Yes, we provide OEM and ODM customization of parameters, branding and packaging. LONGWELL defines specs and drawings, and every order is inspected to LONGWELL standards.

Q:What is your standard lead time for bulk orders?

Customized samples typically take 1-3 weeks, and first production batches 30-45 days after sample approval, depending on quantity and configuration.

Q:What safety and quality certifications do your products hold?

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

Q:What makes your EC motor technology reliable for long-term use?

We utilize advanced EC motor technology combined with premium components. This ensures superior efficiency and a reliable 50,000-hour lifespan for demanding HVACR and industrial applications.

Q:Can I request a procurement sample package before placing a bulk order?

Absolutely. We encourage buyers to request a sample for quality and performance testing. We can arrange a testing package to help you evaluate the airflow, noise levels, and overall build quality.