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4020 Model Airplane UAV Drone Charger Ventilation Fans Servo Driver Micro Cooling Fan 40mm 40*40*20mm 12v 24v DC Brushless Fan


| Listed Model | Bearing System | Rated Voltage | Operation Voltage | Rated Current | Rated Power | Speed | Air Flow | Static Pressure | Noise Level | Available Features(Optional) | Weight | |||
| VDC | VDC | AMP | W | RPM | CFM | mmH2O | dBA | FG | RD | Thermal Control | PWM | G | ||
| WDF4020HS | Sleeve | 5 | 3.5~6.0 | 0.18 | 0.90 | 7,000 | 7.85 | 5.85 | 30.6 | * | * | 22 | ||
| WDF4020MS | 3.5~6.0 | 0.15 | 0.75 | 6,000 | 6.80 | 4.30 | 27.1 | * | * | |||||
| WDF4020LS | 3.5~6.0 | 0.12 | 0.60 | 5,000 | 5.50 | 2.84 | 24.0 | * | * | |||||
| WDF4020HB | Ball | 3.5~6.0 | 0.18 | 0.90 | 7,000 | 7.85 | 5.85 | 30.6 | * | * | ||||
| WDF4020MB | 3.5~6.0 | 0.15 | 0.75 | 6,000 | 6.80 | 4.30 | 27.1 | * | * | |||||
| WDF4020LB | 3.5~6.0 | 0.12 | 0.60 | 5,000 | 5.50 | 2.84 | 24.0 | * | * | |||||
| WDF4020HS | Sleeve | 12 | 5.0~14.0 | 0.10 | 1.20 | 7,000 | 7.85 | 5.85 | 30.6 | * | * | |||
| WDF4020MS | 5.0~14.0 | 0.07 | 0.84 | 6,000 | 6.80 | 4.30 | 27.1 | * | * | |||||
| WDF4020LS | 5.0~14.0 | 0.05 | 0.60 | 5,000 | 5.50 | 2.84 | 24.0 | * | * | |||||
| WDF4020HB | Ball | 5.0~14.0 | 0.10 | 1.20 | 7,000 | 7.85 | 5.85 | 30.6 | * | * | ||||
| WDF4020MB | 5.0~14.0 | 0.07 | 0.84 | 6,000 | 6.80 | 4.30 | 27.1 | * | * | |||||
| WDF4020LB | 5.0~14.0 | 0.05 | 0.60 | 5,000 | 5.50 | 2.84 | 24.0 | * | * | |||||



We sincerely look forward to working with you to build long-term stable partnership, and for provide your company with quality products and excellent service.

We are strictly adopting "On-Site Quanlity Control" meathod. Our cooling fans are 100% inspected by our experienced staffs and our advanced proffessional testing equipment, from material, production process, and also with the 3rd party certification when required.
We installed the advanced testing equipment in Taiwan and Japan, like wind tunnel testing machine, pulse pressure machine, micro-computer balance testing machine, vibration testing, temperature and humidity chamber, package drop testing machine, Salt Fog Testing Machine, Noise Test Facility (Anechoic Chamber).

Our R&D team will make sure our cooling fans will comply with all safety certification at design stage. To make sure the fans is stable, reliable and safe. Also, we will proceed all kinds of test, to verify our fans will pass the requirement.
We are researching and developing several EC environmental fans.
We have invested the profession design software and hardware for designing to satisfy every customer's OEM or ODM demand.
For volume inquires, we are willing to design and manufacture special motors or fans to suit your requirements.

OEM/ODM orders are welcome on our products. Our experienced engineering team is capable of walking through the design stage with our customers' design. We accept buyers' labels or logos. Our quality standards are available based on customers' demand.




PACKAGING: Brown carton or according to customer requirement.

SHIPPING:
1.Samples delivery time is 1-3 working days. Bulk order delivery time is 1~3 weeks and is according to the order quantity.
2.Fans can be dispatched by our truck driver if your factory is in Shenzhen, Dongguang or Guangzhou City.
3.Fans could be delivered by express ( FedEx, DHL, UPS, TNT, EMS or SF ) for under 100 kg, our shipping agent have discount with these express company.
4.Large Measure are shipped by sea or air as customer's requirements.
5.FOB port can be Guangzhou, Shenzhen, Xiamen, Hongkong, Shanghai, Ningbo, Qingdao, Beijing, Urumqi, etc.

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