Air Curtain, LONGWELL, 50mm, 115V/230V, Tangential

The air curtain listed here carries 120V/60 Hz ,230V/50Hz,12v,24v,150v, blade material aluminium alloy, documented exactly as the manufacturer publishes it. Send your target quantity and destination for a firm quotation with current lead times.

Key Features of This Air Curtain

• Model Number: LWCA-50530SN-06, LWCA-50610SN-07, LWCA-50700SN-06, LWCA-50800SN-07, LWCA-50854SN-06, LWCA-50920SN-07, LWCA-501055SN-06
• Voltage: 120V/60 Hz ,230V/50Hz,12v,24v,150v
• Blade Material: aluminium alloy
• Material: Plastic, Aluminum Alloy, Steel
• Housing Material: Galvanized Metal
• Impeller/Blade Material: Aluminum Alloy

Technical Specifications

Product Details

Product Paramenters

Name :	LONGWELL 50mm Double Blower Silent Tangential Fan Blower 230v 115V Air Curtain Squirrel Cage Convector Fan Custom Cross Flow Fan
Voltage Ranges :	230V
Frequency :	50/60 Hz
Diamter :	50mm ( impeller diameters )
Air Flow:	288m³/h-564m³/h
Speed:	1800RPM
Motor Types :	BLEC External Rotor Motor
Speed Control :	0-10V Signal / PWM / RS485(Optional)
Max.ambient Temp:	-25℃～ +60℃
Certificating :	All necessary certifications suitable for USA & Europe , ETL,UL ,CE ,RoHS, ISO19001,ISO 14001,BSCI
Protection Level:	IP44 ,IP54,IP55
Electronic Protection:	Current limiting protection ,Over-temperature protection,Over-current protection,Locked-rotor protection,Soft start
Working & Storage:	Operating temperature：-25~60℃；Operating humidity：0 ~ 85 % RH Storing temperature：-25 ~ 70℃；Storing humidity：0 ~ 95 % RH Applicable altitude range：＜1000m
Balancing:	According to JB/T 9101-1999 requirements G6.3
Product Standards :	LVD EN60950-1 EMC EN61000-6-3,EN61000-4-2, EN61000-4-3
Mainly Applications:	AUH/ AIR PURIFIER / Server Cooling & Ventilation / Grow Tent /Ventilation SYSTEM/ Equipments Cooling /Refrigerator ,etc;ventilation fan cooling;ventilation exhaust fans

Technical Specification

Applications

LONGWELL-Project & Customer Tangential Blower Fan Cross Flow Fan Applicaiton

Heaating Convectors ,Heaters ,Fireplace, Floor heating system ,AIR-CURTAIN,Air conditioning ,Refrigerator,TRAIN_Ventilation system ,Medical machine,3d -printer,Greenhouse,etc

Floor heating Convector

Refrigerator cooling

Air curtain

Evelator ventilation

Fireplace ventilation

Servers cooling

Equipments cooling

Hydroponics system

Transportation Ventilation

Disinfection

3D Printer

Air conditioning system

Company Profile

Delivery premium quality fans globally for healthier breathing !

Centrifugal fans | Axial fans | Cross flow fans | Duct fans | Motors

LONGWELL is a globally recognized fan manufacturer,specializing in high-performance EC/DC/AC fans,blowers,and motor systems for HVACR applications.With over 20 years of export experience and millions of units produced annually,we deliver reliable airflow solutions to OEMs in more than 30 countries.
Our extensive product range includes centrifugal fans,axial fans,cross-flow fans,forward curved blowers,and ECM motors widely used in AHUs,FFUs,purifiers,heating systems,and industrial ventilation.We are certified to ISO9001,ISO14001,BSCI, CE,UL/ETL,FCC,and RoHS standards,ensuring full compliance across global markets.
As an innovation-driven company,Longwell integrates aerodynamic design,CFD simulation,and custom engineering to meet specific client needs.Backed by advanced R&D labs,flexible manufacturing,and a global sales network across 8 regions,we respond quickly with tailored fan solutions built for efficiency,durability,and compliance.

Protective Packaging & Secure Shipment

To ensure each cross flow fan arrives in perfect condition,we use high-density protective foam blocks and durable exportgrade cartons for individual units.For bulk shipments,fans are securely palletized and wrapped for stability,with full-container loading available for large orders.Custom packaging solutions are also available upon request to meet specific logistics or branding needs.

Exhibition

Global HVACR Exhibitions Participation

Longwell actively showcases its HVAC fan innovations at leading international exhibitions,reinforcing our global presence and customer trust.From the AHR Expo in the USA to MCE in Milan,ISH China & CIHE,HARFK Korea,and Chillventa in Germany,we engage directly with industry professionals to present efficient airflow solutions. Our participation in events like Interclima (France),HVACR Expo Saudi,HVACR Vietnam,and the Canton Fair highlights our ongoing commitment to serving global HVACR markets with customized and high-performance fan systems.

Trusted by Leading Global HVACr Brands

Longwell is a reliable partner to many internationally recognized HVAC and ventilation equipment manufacturers.Our fan solutions are widely integrated into air handling units (AHU),fan filter units (FFU),air purifiers,air conditioners,and industrial
ventilation systems.We are proud to collaborate with renowned brands such as Systemair,Frico,York,GREE,Carrier,and other industry leaders.This strong and diverse partnership network reflects our ability to deliver highperformance,customized fan solutions across a broad range of applications.

Certifications

Comprehensive Certifications & Global Brand Assurance

Longwell products and production systems are fully certified to meet international safety,quality,and environmental standards.Our fan solutions comply with UL,ETL,CE,FCC,and RoHS directives,ensuring safe and reliable performancein global markets.Our manufacturing facility is ISO9001,ISO14001.ISO45001,and BSCI certified,reflecting our commitment to quality control,sustainability, and social responsibility.Additionally,the LONGWELL trademark has been officially registered in multiple countries and regions,offering secure brand protection and global OEM/ODM flexibility.

Why Choose Us

What Our Customers Say

Explore real customer feedback on our most popular fan models.All reviews are based on actual usage scenarios,highlighting product performance,reliability,and application success across diverse HVAC systems.

Global Sales Network & Localized Service

Longwell operates a robust global sales network with 8 regional sales organizations,including our headquarters in China.Our international presence spans key markets across North America,Europe,Asia,and the Middle East.This localized structure enables us to deliver fast,region-specific support from presales consultation to after-sales service.With multilingual teams and deep market understanding,we ensure efficient communication,swift feedback,and tailored fan solutions that align with local regulations and customer expectations. Whether you’re an HVAC equipment manufacturer in Germany,an air purifier brand in South Korea,or a system integrator in the UAE,our global team is ready to respond quickly and professionally.

FAQ

Q1. what’s the advantages of your cross flow fan ?

-LONGWELL cross flow is special design for low noise purpose only . noise even low to 19 dBA ;

– We have large production range from 20mm to 200mm ;

– We have heavy duty design which makes 4000rpm for diameter less 60mm，150mm dia fan makes over 2700rpm.

Q2. Does Longwell provide any speed control options for DC cooling fans ?

Reply :
Yes , Longwell can provide some speed regulator solutions according customer’s requirements ,such as :
– The 0-10V/ pwm controller is for use with the full range of cross flow fans / dc cooling fans. Powered by the 10VDC it provides infinitely variable, manual speed control between 0% and 100% ;
– Can control multiple fans running at the same speed ;
– Stepless control knob for infinitely variable speed setting .

Q3. how we connect the tangential fan to our application ,is there a wiring diagram ?

Please check the speed control of your application first ( is it PWM or 0-10V ) ,

Please refer to the wiring diagram of 0-10v series as below :

for more details please contact us for professional engineer service ,

Q4. Life span of this kind of dc cross flow fan ?

Longwell EC external rotor motor surpasses efficiency class IE4, magnets with no rare earths, maintenance-free ball bearings (sealed) with long-term lubrication, theoretical nominal service life of at least 40,000 hours of operation, installation with horizontal and vertical motor shaft; soft start, integrated current limitation. Integrated electronics, quiet commutation logic;100 % speed controllable; control signal 0-10 V DC / PWM; tach output.

Q5. Are there any other AC DC EC cross flow fans options or solutions for selection ?

Yes ,sure .
LONGWELL is a professional manufacturer of fans, blowers , motors and components for heating ,venlation, air conditioner and refrigeration applications ,specialist in centrifugal fans, axial fans, AC /BLDC cross flow fans, single / double forward curved fan BLOWERS ,AC / BLDC/ECM motors as well as industrial fan blowers, inline duct fans , Poultry ventilation fans ( AC / DC /EC ) ,etc. Please check below photos for reference :

Longwell as a known and trustworthy DC cross flow fan Supplier in China , we assure you the best product quality and service. If you are looking for DC cross flow fans for your manufacturing applications or electronic devices, do go through the features and specifications of our various models of DC cross flow fans. In case you require any further information or have technical queries, you can contact us directly at :

Tel:+86 183-5827-4663 ；E-mail:sales@zjlongwell.com

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Ordering and Pricing

• Minimum order quantity: 500 piece
• Volume pricing:
  • 500–999 piece: US $12 / piece
  • 1000–4999 piece: US $10 / piece
  • 5000–9999 piece: US $8 / piece
  • 10000+ piece: US $5 / piece
• Ships from: China
• Customization: OEM and ODM accepted on qualifying volumes.

Frequently Asked Questions

What is the minimum order quantity for this air curtain?

The standard minimum order quantity is 500 piece. Trial orders can usually be arranged for buyers evaluating the product before a full production run.

What warranty is provided?

The manufacturer provides a 1 Year warranty. Spare parts and technical support remain available after the warranty period.

Which certifications does this air curtain carry?

It is supplied with CCC/CE documentation, which covers the requirements of most import markets. Additional test reports can be issued on request.

Can the air curtain be supplied for my local voltage?

The standard configuration is 120V/60 Hz ,230V/50Hz,12v,24v,150v. Alternative voltage and frequency builds are available when specified at the time of order.

Do you accept OEM or custom branding?

Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.

How long does production and delivery take?

In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.

About the Manufacturer

This product is produced by Ningbo Longwell Electric Technology Co., Ltd., based in China. The company 9 years as a verified Alibaba.com supplier, operates its own manufacturing, passed third-party supplier assessment. Browse the full Ningbo Longwell Electric Technology Co., Ltd. range on HVACR Nexus.

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