RK-3035SA 5V 6V 7.4V 30mm Carbon Brush Motor For Small Household Appliances
Mini RK-3035SA 5V 6V 7.4V 30mm Carbon Brushes For Small Household Appliances
RK-3035SA Mini Electric Motor Techincal Parameters
Motor Type:RK-3035SA-23184
Rated voltage: DC/6.0V.
Rated load: 40g-cm.
No-load current: 150mA MAX.
No-load speed: 4300±300r/min.
Load current: 480mA MAX.
Load speed: 3700±260r/min.
Axial clearance: 0.05~0.50.
Plugging torque: ≥31.86m-Nm (325g-cm)
Starting voltage: ≤1.5V.
Motor noise: ≤ 55dB (distance 10cm).
Insulation resistance: DC/100V 10MΩ MIN.
Motor insulation grade: Class F.
Motor Type:RK-3035SA-15360A
Rated voltage: 12.0V
No-load speed:4300±10%
No-load current: ≤80mA
Load speed:4300±10%
Load current: ≤300mA
Starting torque: ≥200g-cm
Motor height: 30.5±0.3mm
Motor outer diameter: 30.3±0.3mm
External dimensions:30.3*30.5mm
Output shaft length: 8.0±0.3mm
Dummy position: 0.05-0.5mm
Motor steering: CCW
Range of use: Spray disinfection/Automobile massage chair /vacuum packaging machine /bottle opener/ small household appliances and other daily necessities
Structure Type: brushed
Application scope: industrial use
Excitation method: permanent magnet type
Housing protection method: closed
Processing customization: custom processing
Rated power: 5.30W
Efficiency: 98%
Insulation level: B
Protection level: 1
Output shaft length: 8.00±0.01mm
Starting voltage: 3.0V
Starting torque: 200nm
RK-3035SA Carbon Brushes Mini Electric Motor Dimension
Standard RK-3035SA Small High Torque Electric Motor Size/Dimension Information
1.Motor Diameter:30.1±0.3mm
2.Motor Height:30.5±0.3mm
3.Front Step Height:2.6±0.1mm
4.Front Step Diameter:10±0.1mm
5.Shaft Diameter:2.5mm (Round Shaft)
6.Shell Mounting Hole Distance:22±0.1mm
7.Screw Hole Size:2.6*0.45mm
7.Terminal Distance:23.2±0.1mm
Applications of RK-3035 Micro DC Motor in Diaphragm Pumps/Vacuum Negative Pressure Pumps/Inflators/Aquarium Air Pumps
Model: RK-3035SA-23184
Rated Voltage: DC 6V
Load Capacity: 40g-cm | Stall Torque: ≥325g-cm
No-Load Speed: 4300±300 RPM | Load Speed: 3700±260 RPM
Key Application Fields
-
Diaphragm Vacuum/Negative Pressure Pumps
-
With a load speed of 3700 RPM and stall torque of 325g-cm, it efficiently drives diaphragm reciprocating motion to quickly generate negative pressure, suitable for:
-
Small vacuum packaging machines
-
Medical suction devices
-
Laboratory vacuum systems
-
-
-
Miniature Inflators (DIY Inflator)
-
Low starting voltage (≤1.5V) ensures quick response, making it ideal for:
-
Balloon/air mattress inflators
-
Pneumatic tool auxiliary inflation
-
Portable outdoor inflation devices
-
-
-
Aquarium Air Pumps
-
Low-noise design (≤55dB at 10cm) prevents disturbance to aquatic life, while stable 6V/480mA load operation ensures long-term reliable oxygen supply.
-
-
Industrial Micro Starters
-
High torque output enables driving small mechanical structures, applicable in:
-
Automated valve triggering
-
Small conveyor belt drives
-
Instrument reset mechanisms
-
-
Product Advantages
✅ High Power – Stall torque of 325g-cm easily overcomes pump resistance
✅ Low Power Consumption – Rated load current only 480mA, energy-efficient
✅ Instant Start/Stop – Starting voltage ≤1.5V, ultra-fast response
✅ Quiet Operation – ≤55dB noise level, suitable for noise-sensitive environments
Typical Use Cases
▸ Medical Devices: Dental suction units, negative pressure wound therapy systems
▸ Home Appliances: Portable vacuum cleaners, smart toilet vacuum generators
▸ Industrial Automation: Pneumatic component test benches, small automated actuators
Customization Options Available! (Voltage, shaft length, IP rating, etc.)
Note: Optimal performance requires matching with a gearbox or transmission mechanism to adjust torque/speed ratio.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.

