280*105mm DC Backward Cooling Fan Factory Wholesale Industrial Exhaust Centrifugal Fan

• Material: Plastic
• Blade Material: Plastic
• Type: Centrifugal Fan
• Electric Current Type: DC
• Mounting: Free Standing
• Certification: RoHS, CE
• Model NO.: DL280B24H
• Rated Voltage: DC24V
• Current: 6.4A
• Input Power: 153.6W
• Niose: 70dB
• Weight: 2500g
• Transport Package: Carton Packing
• Specification: 280*105mm
• Trademark: luckyxin
• Origin: China
• HS Code: 8414599050
• Production Capacity: 1000000pieces/Year

Product Description

 

 

 

Product Parameters

 

Speed	1700-2300 RPM	Frame	PBT
Airflow	665.73-900.70 CFM	Impeller	PBT
Pressure	30.82-56.41 mmAq	Insulation	Class A
Nosie	70.0-75.0 dBA	Bearing System	2 Ball,Longlife Sleeve, FDB
Voltage	24v-48v	Operation Temperature	-10ºC-70ºC
Motor	DC brushless external rotor motor

Above Specification is only for reference, please contact us for more details.

Φ280*105mm

Φ11*4.13 in

Speed:1700-2300 RPM

Airflow:665.73-900.70 CFM

Pressure:30.82-56.41 mmAq

Nosie:70.0-75.0 dBA

Voltage:24V-48V

Motor: DC brushless external rotor motor

Frame:Aluminium

Impeller:PBT

Bearing System: 2 Ball, Longlife Sleeve, FDB

Insulation: Class A

Operation Temperature:-10ºC-70ºC

Detailed Photos

Application industry

Axial fans are used for stable cooling in many different applications and locations.

If the temperature of a device increases, the lives of its internal parts will be reduced and malfunctions could result.

Particularly devices and parts that generate heat are greatly affected by heat.

Device internal cooling and fan selection are extremely important to long-term usage of the parts inside devices.

Remarks

 

Packaging Details        Carton Case or according to your demands
Port                                Shenzhen/hongkong
Lead time                      About 1 weeks after payment confirmed or according to order quantity
After sales service       Warranty is 12 months from shipping date
Packaging picture Example 

Company Profile

 

 

Certifications

 

 

 

Tips

1. When the cooling fan is running, sometimes there is a "da da" collision sound, and sometimes there is no sound.

The reason may be that the dense and messy data cables and power cables in the cooling fan have touched the fan blades of the fan, causing the cooling fan to make abnormal noises when it rotates.

Solution: Use rubber bands, adhesive tape, etc. to bundle the data and power cables inside the half fan, and avoid passing over the cooling fan.

2. The cooling fan was used normally in the early stage, but recently it was suddenly found that the fan automatically moved to a fixed position.

The reason may be that the fastener of the radiator fails, and the fan is displaced due to the resonance phenomenon caused by the rotation of the fan.

Solution: Replace with a new buckle.

3. The cooling fan suddenly makes a loud noise when it is in use, even louder than the sound made by the chassis power supply.

The reason may be that too much dust has accumulated on the surface of the cooling fan and the gaps in the radiator, and the motor lubricating oil of the fan has completely dried up, which causes a motor-like roar.

Solution: We can wipe the cooling fan with soft paper, and use a medical swab to wipe the gaps, then open the plastic sticker off the fan, and drop one to two drops of ordinary sewing machine oil into the movement.

4. If the cooling fan is used for less than a week, there will be excessive noise and poor rotation, but it will return to normal after a period of time.

The reason may be that the indoor temperature where the cooling fan is located is low, which causes the lubricating oil on the rotating bearing to fail.

Solution: Add antifreeze lubricating oil to the cooling fan, pay attention to the temperature of the use environment, and pay attention to its maintenance.
 

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