RF-500TB-18280 3V 2800RPM 10mm Long Shaft Tiny Electric Motor For
Auto Diffuser
Technical Parameter
Model: RF-500TB-18280 Motor
Shaft Type: Single Shaft
Shaft Diameter: 2mm
Shaft Length:10.5±0.5mm(With motor motor step height)
Motor Body Diameter: 32mm
Motor Body Length: 19.5±0.3mm (Without Shaft Length)
Front Steps Diameter: 6.2mm
Front Step Height: 1.8mm
Screw Holes Distance:22±0.1mm
Screw Holes Size:2.5mm*0.45
Rated Load Current:210mA max
No load Speed:3000±200r/min
No load Current:70mA max
Starting Torque:65.0 g-cm (min.)
We accept RF-500TB Custom Service :Voltage, Speed, Current, Torque,
Shaft Length , Terminal length,and accessories.
RF-500TB-18280 3V 2800RPM 10mm Long Shaft Dimension
Notes: .
1. Usable machine screw length 1. 0max. from motor mount ing
surface.
2. AIlowable torque for screwing of tapped hole:2. 5kgf-cm max.
3. No remarkable scraches on dents on the surface.
4. Tolerances not otherwise specified decimal:士0.3m.
We accept RF-500TB OEM& ODM Custom Service : Size can be customzied
as your need.
RF-500TB-18280 3V 2800RPM Fragrance Dispenser Humidifier Solution
The RF-500TB-18280 is a high-performance 3V micro motor, model number RF-500TB-18280,
featuring a single shaft design (Shaft Type: Single Shaft) with a
shaft diameter of 2mm (Shaft Diameter: 2mm) and a shaft length of 10.5±0.5mm (Shaft Length: 10.5±0.5mm). It is highly suitable for driving atomization or fan systems in
aroma diffusers. The motor body has a diameter of 32mm (Motor Body
Diameter: 32mm) and a length of 19.5±0.3mm (Motor Body Length:
19.5±0.3mm), making it compact and easy to integrate into the
internal design of aroma diffusers.
In aroma diffusers, the primary function of the RF-500TB-18280
motor is to drive the atomizer or fan, evenly dispersing the mist
generated from the mixture of essential oils and water into the
air. With a rated load current of 210mA max (Rated Load Current:
210mA max), a no-load speed of 3000±200 RPM (No Load Speed:
3000±200r/min), and a no-load current of 70mA max (No Load Current:
70mA max), it ensures efficient operation while maintaining low
power consumption and minimal heat generation, making it ideal for
aroma diffusers that operate for extended periods.
The motor's starting torque is 65.0 g-cm (min) (Starting Torque: 65.0 g-cm (min.)), ensuring stable startup and operation under load conditions. Its
front step diameter is 6.2mm (Front Steps Diameter: 6.2mm), and the
step height is 1.8mm (Front Step Height: 1.8mm). Combined with a
screw hole spacing of 22±0.1mm (Screw Holes Distance: 22±0.1mm) and
screw hole size of 2.5mm0.45 (Screw Holes Size: 2.5mm0.45), the motor is securely installed, reducing vibration and
noise during operation and enhancing user experience.
In atomizing aroma diffusers, the RF-500TB-18280 motor drives the
atomizer through high-speed rotation, breaking the liquid into fine
mist particles for efficient atomization. In fan-type aroma
diffusers, the motor drives the fan blades to quickly disperse the
fragrance throughout the room. Its low noise, low power
consumption, and high stability make it an indispensable core
component in aroma diffusers, delivering a long-lasting and pleasant aromatic experience.
In summary, the RF-500TB-18280 micro motor, with its excellent
performance parameters and compact design, excels in aroma
diffusers, providing reliable support for efficient device
operation and an enhanced user experience.
Q & A
✅ 1. How does a mini diffuser work?
A mini electric diffuser works by using a mini motor and a fan or ultrasonic mechanism to disperse essential oils or fragrances into the air. The common
working principles are:
Fan-based diffusers:
A mini DC motor drives a small fan, which blows air across an aroma pad or essential oil compartment,
dispersing fragrance particles into the air.
Ultrasonic diffusers:
These use ultrasonic vibrations (not a motor) to break the essential oil into fine mist. However, some models still use a mini fan (driven by a motor) to circulate the mist.
✅ 2. Which mini motor is used in electric diffuser machines?
For fan-based electric diffusers, the most common mini motors are:
- DC Brush Motors (Low cost, compact)
- Models: Mabuchi FC-280, FF-130, or similar small DC motors
- Coreless DC Motors (Quieter and lighter—used in premium diffusers)
- Brushless DC Motors (BLDC) (Longer lifespan and low noise, ideal for silent operation
diffusers)
✅ 3. What’s the voltage of electric diffuser motors?
Typical operating voltage for diffuser motors:
| Motor Type | Voltage Range |
|---|
| Small DC motors | 3V – 12V DC (commonly 5V or 6V) |
| Ultrasonic modules (if applicable) | Usually 5V or 12V |
