What is the lead time for production?

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

What is the insulation class?

The fan has an Insulation Class B rating for safety and durability.

Longwell 355mm FFU Cooling Fan with Ec Speed Control Centrifugal Fan, Duct Mount for HVAC Systems, Voltage and Wire Length Customization, Custom OEM ODM

Name: Longwell 355mm FFU Cooling Fan with Ec Speed Control Centrifugal Fan, Duct Mount for HVAC Systems, Voltage and Wire Length Customization, Custom OEM ODM
Brand: NINGBO LONGWELL ELECTRIC TECHNOLOGY CO., LTD.
SKU: 1992857455

Zhejiang, ChinaNINGBO LONGWELL ELECTRIC TECHNOLOGY CO., LTD.

US$93.00-200.00

100 Pieces

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

Material

Plastic

Blade Material

Plastic

Model NO.

LWBE3G355

Type

Centrifugal Fan

Electric Current Type

Mounting

Duct Fan

Certification

RoHS, CE, CCC

Fan

Ec Backward Centrifugal Fan

Voltage

115V-230V

Motor Type

BLDC External Rotor Motor

Diameter

133mm - 560mm Diameter

Wire Length

500mm or Customization

Label

OEM / ODM Available

Fan Speed Control

0-10V / PWM

Application

Ventilation ,Floor Heating , Cooling

Transport Package

Standard Exporting Packages

Specification

LWBE3G355

Trademark

LONGWELL

Origin

China

HS Code

8415901000

Production Capacity

50000 PCS / Month

Key features

BLEC External-Rotor EC Motor: A brushless external-rotor motor drives the wheel, accepting 0-10V analog or PWM digital speed control for fan filter unit airflow trim.

115V-230V AC Power: Runs on 115V to 230V AC, so this 355mm EC centrifugal fan covers both North American and European FFU and clean-room builds.

Plastic Impeller and Housing: A plastic wheel and housing keep the 355mm frame light for fan filter unit and ceiling-mount installations.

Duct-Ready Mounting: Configured as a duct fan, it mounts directly into an FFU housing or duct cutout without an added bracket kit.

Built-In Electrical Protection: Locked-rotor, reverse-polarity, over-voltage and soft-start protection are built into the control input for unattended clean-room duty.

Clean-Room and HVAC Applications: Sized for fan filter units, HVAC systems, ventilation, floor heating and server-room cooling that need adjustable airflow.

OEM/ODM and Lead Time: Wire length, voltage and labeling are customizable to your FFU design; samples in 1-3 weeks, first batch in 30-45 days.

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: ≤1.76h

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 is the speed control method?

The fan supports 0-10V and PWM speed control for precise adjustment.

Q:What is the operating voltage range?

The fan operates on a wide voltage range of 115V to 230V AC.

Q:Is OEM or ODM service available?

Yes, OEM and ODM services are available, including custom labeling.

Q:What certifications does the fan have?

CE, RoHS and CCC on applicable models; ETL on selected models. Tell us your destination market and we will confirm the certificate for the exact model before you order.

Q:What is the minimum order quantity?

The minimum order quantity is 100 pieces.