What is the noise level of this fan?

The noise level is 77 dBA at maximum speed.

What is the protection class of the motor?

The motor has a protection class of IP44.

355mm Ec Backward Centrifugal Fan for Air-Conditioning System

Name: 355mm Ec Backward Centrifugal Fan for Air-Conditioning System
Brand: NINGBO LONGWELL ELECTRIC TECHNOLOGY CO., LTD.
SKU: 2035578455

Zhejiang, ChinaNINGBO LONGWELL ELECTRIC TECHNOLOGY CO., LTD.

US$446.00-598.00

100 Pieces

Sample price:US$777.00/piece.Request sample

Product profile

Customization

Available

Material

Aluminum Fan

Blade Material

Aluminum Alloy

Type

Centrifugal Fan

Electric Current Type

Mounting

Duct Fan

Certification

RoHS, CE, CCC

Transport Package

Standard Exporting Packages

Trademark

LONGWELL

Origin

China

Production Capacity

30000 PCS / Month

Key features

EC Motor Technology: Features extremely compact design with permanent magnet rotor for zero hysteresis loss and synchronous operation.

Low Noise Operation: Optimized for air filtration systems with noise levels as low as 77 dBA and high wind speed efficiency.

Comprehensive Protection: Includes locked-rotor, reverse polarity, over-voltage, and soft start protection for reliable performance.

Flexible Control Input: Supports 0-10VDC and PWM control signals for precise speed regulation and energy saving.

High Efficiency Design: Propylene with glass-fiber impeller mounted directly on motor rotor eliminates slip loss.

Multiple Certifications: Certified by CE, ETL, CCC, RoHS, and FCC for global market compliance and safety.

Customization Available: Offers full customization, minor customization, and flexible options from samples or designs.

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: ≤2.23h

AI-Powered supplier vetting

SummaryThe supplier is a well-established entity based in Zhejiang Province, China, specializing in HVACR OEM/ODM design and services. It holds significant certifications like ISO9001 and BSCI, and collaborates with Fortune 500 companies, indicating strong credibility. The company is capable of full-spectrum customization and has robust production capabilities, with annual outputs reaching up to 300,000 pieces for certain products. Their innovation capability includes ODM services and recent product developments. However, their service capability procedures lack documentation, and SDK availability for R&D is absent.

Supplier typeThe supplier operates in the HVACR sector, offering OEM/ODM services with a focus on technology development and sales of related products.

CertificationsThe supplier holds several crucial certifications, including ISO9001:2015, ISO45001:2018, ISO14001, FCC, CE, RoHS, and BSCI, demonstrating compliance with international standards.

After-Sales capabilityThe company provides 24/7 after-sales services including debugging and repair. Their proximity to Ningbo Port enhances their service logistics.

R&D capabilityThe supplier has introduced new products in the past year and offers ODM services, though SDK availability is lacking.

Production capacityThe supplier has a high production capacity with advanced machinery, manufacturing up to 300,000 units annually for some products.

Customization capabilityThe supplier offers extensive customization options from minor to full customization, enhancing their adaptability to client needs.

Client casesThe supplier has collaborated with Fortune 500 companies and enjoys a high repeat buyer rate, indicating customer satisfaction and trust.