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 are the main applications for this fan?

It is suitable for HVAC systems, ventilation, floor heating, cooling, and server cooling.

250mm Ec Backward Curved Centrifugal Fan with Metal Bracket, 230V 400V 85-1000W Centrifugal Blower Fan, High Pressure Centrifugal Exhaust Fan for Ahu

Name: 250mm Ec Backward Curved Centrifugal Fan with Metal Bracket, 230V 400V 85-1000W Centrifugal Blower Fan, High Pressure Centrifugal Exhaust Fan for Ahu
Brand: NINGBO LONGWELL ELECTRIC TECHNOLOGY CO., LTD.
SKU: 2222627955

Zhejiang, ChinaNINGBO LONGWELL ELECTRIC TECHNOLOGY CO., LTD.

US$70.00-200.00

100 Pieces

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

Material

Iron

Usage

for Experiment, for Air Conditioner, for Manufacture, for Refrigerate

Flow Direction

Centrifugal

Pressure

High Pressure

Certification

RoHS, CE, CCC

Fan

Ec Backward Centrifugal Fan

Voltage

115V-230V

Motor Type

BLDC External Rotor Motor

Diameter

250mm

Wire Length

500mm or Customization

Label

OEM / ODM Available

Fan Speed Control

0-10V / PWM

Application

Ventilation, Floor Heating, Cooling

100% Replacement of Ebm / Ziehl Abegg

Delivery Time Short to 19 Days

Transport Package

Standard Exporting Packages

Specification

LWBE250mm Series

Trademark

LONGWELL

Origin

China

HS Code

8415901000

Production Capacity

50000 PCS / Month

Key features

LWBE3G250-072PS-01 gives 1185 m3/h at 618 Pa on 230V, while LWBE3G250-102PS-08 reaches up to 3708 m3/h at 1751 Pa on 400V.

A brushless EC/DC external rotor motor with oblique magnetization takes 0-10V or PWM input and provides a tach output for feedback.

Fixed with a metal mounting panel and bracket around a plastic backward curved impeller, for a rigid bolt-in installation.

Locked-rotor, over-voltage, over-current and soft-start protection are built into the motor electronics for continuous duty.

0-10VDC or PWM control input lets the fan hold a set air volume as duct or filter resistance changes over time.

Sized for fan grid projects, AHUs, FFU fan filter units, air purifiers, heat exchangers, telecom equipment rooms and data centre cooling.

Full customization of voltage, diameter and wire length from your samples or drawings, with samples in 1-3 weeks and 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: ≤1.56h

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.