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500mm Ec Backward Centrifugal Fan Blower, 380V Three-Phase Duct Centrifugal Fan with Glass-Fiber Impeller, High Speed PWM Control for Ahu and Telecom Cooling
US$544.00-1,133.00
100 Pieces
Sample price:US$1472.00/piece.Request sample
Product profile
Customization
AvailableMaterial
Aluminum FanBlade Material
Aluminum AlloyType
Centrifugal FanElectric Current Type
EcMounting
Duct FanCertification
RoHS, CE, CCCTransport Package
Standard Exporting PackagesTrademark
LONGWELLOrigin
ChinaProduction Capacity
30000 PCS / MonthKey features
Six three-phase models run 870-4270 W at 1100-2200 rpm, from about 8131 m3/h at 464 Pa up to 14238 m3/h at 1051 Pa, so you size to your duct run.
Three-phase 304-456V or 380-480V brushless drive runs synchronously with no slip loss, holding output steady across the speed range.
Aluminum alloy blades on an aluminum fan body handle the higher tip speeds this 500mm wheel size runs at across its speed range.
Supplied as a duct fan for direct bolt-in to AHU casings and equipment cabinets, no separate bracket needed.
Accepts a 0-10VDC or PWM signal so your control panel can dial in the exact airflow your system needs.
Sized for air handling units, telecom equipment cabinets and server room cooling where a large 500mm wheel covers high air volume.
Wiring, labeling and voltage variants can be customized; samples ship in 1-3 weeks and first batches in 30-45 days.
Company profile
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 is the motor type?
A:
The fan uses a BLEC Motor with an impeller made of Propylene with Glass-Fiber.
Q:What are the available control options?
A:
It supports Control input 0~10VDC/PWM and includes Tech output functionality.
Q:Is the product customizable?
A:
Yes, we offer Full Customization, Minor Customization, and Flexible customization from samples or designs.
Q:What is the Minimum Order Quantity?
A:
The Minimum Order Quantity is 100pcs.
Q:What are the lead times for production?
A:
Customized samples typically take 1-3 weeks, and first production batches 30-45 days after sample approval, depending on quantity and configuration.
Send Inquiry
*To:
NINGBO LONGWELL ELECTRIC TECHNOLOGY CO., LTD.
NINGBO LONGWELL ELECTRIC TECHNOLOGY CO., LTD.*Content:
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