Factory Direct Supply 70*70*20mm Mini Brushless 12V DC Ventilating Centrifugal Blowers Radial Fans 24V 48V Round Industrial Motor Cooling Air Purifier BLDC Fans

• Customization: Available
• Material: Plastic
• Usage: for Experiment, for Air Conditioner, for Manufacture, for Refrigerate
• Model NO.: MX7020GBH2
• Flow Direction: Centrifugal
• Pressure: Medium Pressure
• Certification: RoHS, UR, CE
• Product Name: DC Centrifugal Fan
• Motor: DC Motor
• Shape: Round
• Bearing Type: Ball Bearing and Sleeve Bearing
• Color: Black
• Rated Voltage: 24V
• Rated Current: 0.5A
• Speed: 9200rpm
• Air Flow: 39.9cfm
• Transport Package: Carton Box
• Specification: 70*70*20mm
• Origin: China
• Production Capacity: 20000PCS/Per Day
• Package Size: 7.00cm * 7.00cm * 2.00cm
• Package Gross Weight: 0.080kg

Product Description

Factory Direct Supply 70*70*20mm mini brushless 12V dc Ventilating Centrifugal blowers radial Fans 24V 48V round industrial motor cooling air purifier bldc fans

 

 

Product Name	Dc centrifugal Fan
Model	MX7020GBH2
Size	70*20MM
Operating voltage	24V
Rated current	0.5A
Input power watt	12W
Speed	9200rpm
Air Flow	39.9CFM
Frame and Impeller:	Plastic (UL94V-0)
Bearing type	Sleeve Bearing&Ball Bearing
Function Range:	FG RD IP58 IP68 PWM
Tempetature Range:	-30ºC to +80ºC
Leadwire:	Red Wire Positive(+),Black Wire Negative(-)
Usage	For sweeper, coffeee machine,smart robot, etc
Motor:	Impedance Protected and Reverse Polarity Protected
Expected life:	50000 hours(40ºC);Sleeve bearing 30000 hours(40ºC)
Allowwable Ambient temperature range:	-10ºC -70ºC(Operating)  -40ºC -70ºC(Storage)    (non-condensing envieronment)

Additional protection functions can be added: AS automatic lock/start function, slow start function, over current protection,motor lock current protection, reverse connection protection, over voltage protection, PWM, FG, RD, IP55, IP68

FG (speed output signal)
FG function is also commonly referred to as tach out. This function is mainly used to output a square wave signal from the inside of the fan, and the frequency of the signal represents the speed of the fan. Conventional four-stage fan: speed = FG frequency *30. That is, the fan speed can be read by reading the FG signal.
Rd signal (stall alarm function)
The RD function is also known as the alarm signal. RD is low when the fan is running and high when the fan is locked. Judge
whether the fan is in normal operation or locked state by monitoring the RD signal level.
PWM speed regulation function
PWM refers to pulse width modulation. It means that the frequency (period) of the pulse signal is fixed, and the width ratio (duty cycle: that is, the space ratio) of the pulse wave is changed by the size of the input signal (DC). The on cycle and off cycle of the pulse signal are changed to change the speed of the fan, so as to save energy and reduce noise.
Automatic restart
When the fan is locked, the working current of the fan will be cut off automatically, and the fan is in the state of low current, so as to protect the fan from burning due to high current. Another function of auto restart: the fan automatically outputs a
signal to start the fan every certain time. When the fan is not in the locked state, the fan will be updated, started and run normally.
Introduction to waterproof function
1: Glue filling process:IP68 grade The fan runs in water 2 :Vacuum coating process:Ip55-ip68 grade The fan can run with water! The cost is lower than glue filling

Product Specifications

Sleeve Bearing
Sleeve bearings generally use friction sliding sleeves (s). The fan blade axis uses lubricating oil as lubricant and drag reducer, but the lubricating oil will volatilize and cause friction. The service life is lower than that of ball bearings, and the service
life is generally 30000 hours
 

 

Ball bearing
Ball bearing: the model is generally represented by (b). Several small steel balls in the bearing rotate around the axis, so the friction is small and there is no oil leakage problem. The advantage of double ball bearing is long service life, suitable for long-term 24-hour uninterrupted operation and high-speed fan, with a service life of 50000-70000 hours.
 

Product applications
Our products are widely used in welding machines, inverters, ultrasonic wave equipment, refrigeration industry, cabinets, network cabinets, LED display screens, electromotor soft starters, air cooler industry, automation equipment, testing equipment, humidifier, ozone equipment, rectification power supply, projectors, reflow machines, high frequency machines, stage lights, water dispensers, power supply industry, UPS power supply, car DVD, amplifiers, mosquito-killer lamp, car seat/auto pillow/seat cushion, switching power supply, car oxygen bar, eliminating static electricity machines,model airplanes, graphics cards, CPUs, coffee machines, electric toys, beauty instruments, medical equipment, amusement equipment, electronic equipment and more than 60 fields like industrial equipment, life appliances industry, the entertainment industry, the service industry and so on. .

 

 

Company Profile
Shenzhen TOPFAN technology development co., LTD. (Topfanchina) is a professional manufacturer of dc fans and ac fans of high-tech enterprises. The cooling fan products can be divided into: DC fan, AC fan and EC (AC TO DC) fan. According to the wind direction can be divided into: axial fan, blower fan, cross-flow fan and centrifugal fan; According to size can be divided into: micro fan, micro blower fan and industrial fans; According to the function can be divided into: reversible fan, high temperature fan, waterproof fan, temperature-control fan, environmental protection fan. Cooling fans are widely used in automobile, home appliances, network communication, medical equipment, unmanned aerial vehicle, air purification, monitoring equipment, chassis, LED lighting, office equipment, mechanical equipment, emerging intelligent products and other fields.

Shenzhen TOPFAN technology development co., LTD, has the abundant and skilled technician , with professional R&D team, sophisticated testing equipment, advanced production-line, scientific production management and rich experience in research and development to customize, developed various types of low noise, strong air volume, high performance and long life of the product, and through the CE, RoHS, UL, TUV certification, are exported to Europe, North America, Asia, Africa and other regions.

 

Certifications

Delivery and packages

We can arrange the delivery and package according to your requirements. You can choose the delivery way and forwarder by yourself.Delivery time:

1.samples are within 7 days. (free samples are within 2pcs)

2.Products within 5000pcs are 7-10 working days

3.Products above 5000pcs are 10-20 working daysDelivery way:

1. International express: UPS / DHL / FEDEX and so on .

2. By forwarder
 

FAQ
Q1 Why choose us?A1 Topfan-China is a professional manufacturer of dc fans and ac fans of high-tech enterprises. has the abundant and skilled technician, with professional R&D team, sophisticated testing equipment, advanced production-line, scientific production management and rich experience in research and development. We can provide you the soonest reply within 24 hours after you send us an inquiry.
Q2 Are we trader or producer?
A2 We are both a trader and a producer, because we have our own factory and brand.
Q3 How long is our delivery time? 
A3 Generally speaking, in 15 days after receiving your advance payment, the specific delivery time depends on the items and the quantity of your order.
Q4 OEM/ODM Service? 
A4 If your purchase quantity reaches a certain quantity, we can also OEM/ODM.
Q5 What is our MOQ? 
A5 The minimum order quantity depends on the items and the quantity of your order., the exact quantity can be communication, we can provide samples.
Q6 What is our products standards? 
A6 First, according to Chinese standards, and then international export standards, and through the CE, RoHS, UL, TUV certification.
Q7 What is your terms of payment? 
A7 T/T, Western Union 70% as deposit, and 30% before delivery. We'll show you the photos of the products and packages before you pay the balance.
Q8 What is your terms of delivery? 
A8 FOB, CFR, CIF, EXW
Q9 Accepted Payment Currency? 
A9 USD, HKD, CNY