The smart radial fan listed here carries 12V, 24V, blade material Plastic, documented exactly as the manufacturer publishes it. For a binding price and lead time, send the volume you need and where it ships to.
This smart radial fan is listed with the manufacturer’s full published specification — voltage 12V, 24V, blade material Plastic, model number SFD-4020-B. It is produced by Shenzhen Weifengda Electronic Technology Co., Ltd.. Pricing shown is indicative at standard quantities; send your target volume and destination market for a firm quotation with current lead times.
Key Features of This Smart Radial Fan
- Model Number: SFD-4020-B
- Voltage: 12V, 24V
- Blade Material: Plastic
- Frame Material: Plastic
- Warranty: 1 Year
- Place Of Origin: Guangdong, China
Technical Specifications
| Voltage | 12V, 24V |
|---|---|
| Mounting Type | Free Standing |
| Warranty | 1 Year |
| Blade Material | Plastic |
| Customized Support | OEM, ODM, OBM |
| After-Sales Service Provided | Online support |
| Place Of Origin | Guangdong, China |
| Brand Name | Weifengda |
| Model Number | SFD-4020-B |
| Product Name | 4020 Axial Flow 12V 24V |
| Size | 40x40x20mm |
| Frame Material | Plastic |
| Selling Units | Single item |
| Single Package Size | 15X15X10 cm |
| Single Gross Weight | 0.500 kg |
Product descriptions from the supplier
High Speed 18000R 20000R Smart Radial Fans Brushless 40*40*20mm DC Mini Exhaust Fan 4020 Axial Flow 12V 24V
4020 40*40*20mm DC Mini Exhaust Fan 4020 Axial Flow


4020 40*40*20mm DC Mini Exhaust Fan 4020 Axial Flow


4020 40*40*20mm DC Mini Exhaust Fan 4020 Axial Flow
| Model No. | Rated Voltage | Operating Voltage | Rated Current | Rated Input | Speed | Max. Air Flow | Max. Static Pressure | Noise | ||
| VDC | VDC | AMP | Watt | R.P.M | M3/min | CFM | mmH2o | INH2o | dB-A | |
|
SFD-FB0412SHD-B |
12 |
7-13.2
|
0.26 | 3.12 | 12000 | 0.47 | 16.6 | 20.7 | 0.82 | 53.2 |
|
SFD-FB0412GHD-B |
0.32 |
3.84 | 14000 | 0.56 |
19.6 |
27.1 | 1.07 | 54.2 | ||
| SFD-FB0412UHD-B | 0.38 | 4.56 | 16000 | 0.63 | 22.2 | 35.0 | 1.38 | 55.6 | ||
| SFD-FB0412XHD-B | 0.54 | 6.48 | 18000 |
0.71 |
24.8 | 43.8 | 1.73 | 58.0 | ||
| SFD-FB0412ZHD-B | 0.64 | 7.68 | 20000 |
0.84 |
29.5 | 59.2 | 2.33 | 59.5 | ||
|
SFD-FB0424SHD-B |
24
|
14.5~26.5
|
0.13 |
3.12 | 12000 | 0.47 | 16.6 | 20.7 |
0.82 |
53.2 |
| SFD-FB0424GHD-B | 0.16 | 3.84 | 14000 | 0.56 | 19.6 | 27.1 | 1.07 | 54.2 | ||
|
SFD-FB0424UHD-B |
0.19 |
4.56 | 16000 | 0.63 | 22.2 | 35.0 | 1.38 | 55.6 | ||
|
SFD-FB0424XHD-B |
0.27 |
6.48 | 18000 | 0.71 | 24.8 | 43.8 | 1.73 | 58.0 | ||
| SFD-FB0424ZHD-B |
0.32 |
7.68 | 20000 | 0.84 | 29.5 | 59.2 | 2.33 | 59.5 | ||
About Weifengda
Weifengda was founded in 2015 in Shenzhen. We are specialized in developing and producing Axial fans, Centrifugal fans , Blower fans, Waterproof fans, Ac fan and EC fans in different sizes with high quality. We have ISO9001/ CE/ ROHS/ UL/ CUL.
Professional R&D, Quality control personnel and production team to meet various high-quality requirements of customers.

Frequently Asked Questions
What is the minimum order quantity for this smart radial fan?
Minimum order quantity is set per configuration and trial quantities can usually be arranged. Send your target volume with an enquiry and a quotation will follow with current lead times.
What warranty covers this smart radial fan?
A 1 Year warranty is supplied as standard. Spare parts and technical support remain available beyond the warranty period.
Can it be built for my local voltage?
The standard specification is 12V, 24V. Alternative voltage and frequency builds are available when confirmed at order stage.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying volumes. Supply your artwork and technical requirements with the enquiry.
How long is production and delivery?
Stocked configurations normally ship in 7-15 days. Customised or high-volume orders are typically produced in 25-35 days, confirmed at order.
About the Manufacturer
This smart radial fan is produced by Shenzhen Weifengda Electronic Technology Co., Ltd.. Browse the full Shenzhen Weifengda Electronic Technology Co., Ltd. range on HVACR Nexus.
See more in Radial Fans on HVACR Nexus.























