This centrifugal fan is published with the manufacturer’s full specification — 380V(as requiremnts), blade material Iron. Made by Ningbo Longwell Electric Technology Co., Ltd. (9 years on the platform, factory-assessed). For a binding price and lead time, send the volume you need and where it ships to.
Key Features of This Centrifugal Fan
- Model Number: LW
- Power Input: 380V(as requiremnts)
- Voltage: 380V(as requiremnts)
- Blade Material: Iron
- Impeller Material: Iron
- Warranty: 1 Year
Technical Specifications
| Mounting | Free Standing |
|---|---|
| Voltage | 380V(as requiremnts) |
| Blade Material | Iron |
| Electric Current Type | AC/DC/EC |
| Warranty | 1 Year |
| After-Sales Service Provided | Video Technical Support |
| Customized Support | OEM, ODM, OBM |
| Place Of Origin | Zhejiang, China |
| Brand Name | longwell |
| Model Number | LW |
| Type | Building ventilation blower fan |
| Power Input | 380V(as requiremnts) |
| Impeller Material | Iron |
| Direction | Clockwise |
| Bearing | Ball Bearing |
| Motor Type | Internal rotor motor |
| Amb,Temp | -20 to +60℃ |
| Insulation | B/F |
| Application | Building ventilation,hvac |
| Selling Units | Single item |
| Single Package Size | 30X30X20 cm |
| Single Gross Weight | 4.000 kg |
Product Details
AT12-9 High efficiency AMCA Building ventilation blower fan
7/7-18/18 mm diameter avaliable too.
Product Overview


Belt direct drive centrifugal fan AT12-9


Drawing & Performance Curves






Customization Available
If you don't find the products you want in our range , please contact us for customization services freely . our profesional engineer team will work out a satisfied stuff with you .
Any dimensions of cross flow fans , perfromances of air flow ,air pressure ,noise level , installation positions or other functions are availble for your customizing
LONGWELL is a manufacturer of HVAC fans, blowers , motors and components , as well as water purifier pumps and home appliances , established in 1990 , equipped with high advanced testing and production facilities .
Longwell co.,ltd are typically purchased as OEM solutions by manufacturering companies or as aftermarket solutions and replacement parts for HVAC,FCU,FFU,AHU system .
Customers can select form the large variety of preexisting products developed by Longwell including but not limited to :
AC motorized centrifugal fans & blowers ;
Brushless DC/EC motorized backward / forward centrifugal fans & blowers ;
cross flow fan / wheel / blower with motor ( plastic or metal metal ) ;
axial fans / blades with plastic or metal material ;
Shaded Pole Motors ;
Duct fans ;
Parts or assemble parts or repair parts for HVAC,AHU,FCU,FFU,etc.




1.Are you a manufacturer ?
Yes, we are . we own over 10 production lines for different products .
2.How is your quality ?
Aboove average and top class quality are your options in our range , The quality is pretty good,and trusted by many customers in overseas .
our quality is abov the average according customer same budget , customer have 1 year warranty , and free after sales technical support in product designed life span .
3. How is your price ?
Our price is very competitive by large scale production contribution .
4.What's your lead time ?
7days -25days , depengs on volume and different items .
5.How is your responding time ?
You will get reply within 2hours online by Wechat ,Whatsapp , Skype , trade manager .
You will get respond within 8hours offline by email .
Mobile is always availble for picking up your calls .
Contact Details :


AMCA Building ventilation blower fan
Ordering and Pricing
- Minimum order quantity: 100 piece
- Volume pricing:
- 100+ piece: US $30 / piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this centrifugal fan?
The standard minimum order quantity is 100 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.
Can the centrifugal fan be supplied for my local voltage?
The standard configuration is 380V(as requiremnts). 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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