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Small Electric Motor 12V RK-3030SA 30mm For Air Pump High Torque Mini Motor
Small Electric Motor 12V RK-3030SA 30mm For Air Pump High Torque Mini Motor
Small Electric Motor 12V RK-3030SA 30mm For Air Pump High Torque Mini Motor
Small Electric Motor 12V RK-3030SA 30mm For Air Pump High Torque Mini Motor
Small Electric Motor 12V RK-3030SA 30mm For Air Pump High Torque Mini Motor
Small Electric Motor 12V RK-3030SA 30mm For Air Pump High Torque Mini Motor
Specifications
Brand Name :
Lihua Motor/HCS Motors
Model Number :
RK-3030SA-18320
Certification :
ISO9001 Reach,RoHs,SGS,CE
Place of Origin :
Dongguan China
MOQ :
3000PCS
Price :
Negotiation
Payment Terms :
,L/C,T/T,D/P,D/A,Western Union,MoneyGram
Supply Ability :
10000PCS/Day
Delivery Time :
40-45days
Packaging Details :
Plastic/Foam Box
Motor Type :
RK-3030SA-18320
Direction of Rotation :
CCW/CW
Output Shaft Diameter :
2.3mm
Shaft Length :
Free Custom
Body Size :
33mm*30mm(Not including Shaft length)
Motor Volt :
3V/5V/6V/7.8V/12V/13.5V
No-load Speed :
2900RPM/5000RPM/5100RPM/5600RPM/5800RPM
Application :
Pump/Intelligent bathroom
Description

Small Electric Motors 12V RK-3030SA 30mm For Air Pump High Torque Mini Motor

Model: RK-3030SA-18320

Volt:12.0V

Current:≤65mA

No-Load Speed:4600±230r/min

Output shaft: 2.3MM

Shaft length: 8.0±0.15mm

Screw hole: 2.6*0.45MM

Weight: 38 g

Height:30.5MM (excluding front and rear bearing housings)

Motor outer diameter:30 mm

Application:ATM/ Automatic vending machine/Copy machine/Paper money counter/Pump.

Model: RK-3030SA-20260B

Volt:12.0V

Current:≤100mA

No-Load Speed:5600±280r/min

Output shaft: 2.3MM

Shaft length: 8.0±0.15mm

Screw hole: 2.6*0.45MM

Model: RK-3030SA-13385

Volt:13.5V

Current:≤75mA

No-Load Speed:4150±332r/min

Output shaft: 2.3MM

Shaft length: 8.1±0.2mm

Screw hole: 2.6*0.45MM

Introduction: Permanent magnet brushed DC motor is equipped with permanent magnets that provide a strong magnetic field and ensure efficient operation. The brushed design of the motor allows for easy maintenance and adjustment of speed and torque.

Product Note: Data in this typical specification sheet are for other certain customers. Voltage, rated torque, speed, current, power and shaft extension feature & dimension can be customized to meet customer specific requirement.

RK-3030SA 30mm Mini Carbon Brushed Motor Dimension

Small Electric Motor 12V RK-3030SA 30mm For Air Pump High Torque Mini Motor

Small Electric Motor 12V RK-3030SA 30mm For Air Pump High Torque Mini Motor

RK-3030SA 30mm Diameter Motor Size:

Direction of Rotation:CCW/CW

Screw Hole Size:2.6*0.45mm

Screw Hole Distance:22mm
Motor Shell Height:30.5mm
Motor Shell Diameter:30.2mm
Front /End Cover Diameter:10mm

Front Step Height:2.6mm

Motor Shaft Diameter:2.5mm

Terminal Distance:22.4mm

Motor Shaft Length:L±0.5mm

FAQ

Q1:What parameters to check in a motor?
A:To begin an evaluation, check in first on the basic measures of motor performance: current levels, power, voltage, and resistance. Preliminary tests are generally done using the ubiquitous multimeter, which can provide diagnostic information for all kinds of motors.
Q2:Are small motors AC or DC?
A:This means that AC motors are used for most large-scale industrial applications, whereas DC motors are found in smaller applications that require fine speed control
Q3:What are the disadvantages of a DC motor?
A:Micro DC motors are compact, responsive, and cost-effective, featuring simple control, wide voltage adjustment, quick start-stop capability, and high torque. Ideal for precision applications like smart home devices, medical equipment, and robotics
Q4: Do DC motors last longer than AC motors?
A: Typically no. Brushed DC motors have shorter lifespans (10,000-20,000 hours) due to brush/commutator wear, while AC motors often exceed 50,000+ hours with minimal maintenance.

Micro DC Motors in Water Pump Applications: Advantages & Working Principles

Micro DC motors provide diverse power outputs (suction, vibration, extension, oscillation, etc.) for various applications. Below is a concise explanation of their advantages and working principles in water pumps.

How DC Motor Pumps Work

A DC motor pump generates suction via high-speed rotation. During operation:

  • The coil and commutator rotate continuously

  • The magnets and carbon brushes remain stationary

  • Current direction alternates through brush-commutator contact

Types of DC Motor Pumps

1. Brushed DC Motors

✅ Pros:

  • Low cost

  • Easy speed control

  • High starting torque

❌ Cons:

  • Brush-commutator friction increases noise

  • Limited lifespan (~1000 hours)

2. Brushless DC Motors (BLDC)

✅ Pros:

  • No brush/commutator wear (uses electronic commutation)

  • Longer lifespan (depends on bearings)

  • Lower noise

❌ Cons:

  • Complex speed control

  • 1–3x higher cost than brushed motors

Key Features of Micro DC Motor Pumps

  1. Compact, efficient, low-maintenance with extended lifespan

  2. Customizable specs under the same voltage (e.g., 12V 20,000 RPM or 12V 25,000 RPM)

  3. High precision & low noise (<35 dB; near-silent for low-power models)

  4. Flexible speed control via PWM, analog signals, or potentiometers

Usage Guidelines

⚠ Avoid:

  • Particle ingress (metallic debris increases friction)

  • Demagnetization (caused by overheating)

  • Prolonged idling

Motor Selection Criteria

  1. Electrical specs: Higher voltage = faster speed but more noise/current

  2. Size/shape constraints

  3. Operating environment (e.g., temperature limits)

Small Electric Motor 12V RK-3030SA 30mm For Air Pump High Torque Mini Motor

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Product Detail
Brand Name :
Lihua Motor/HCS Motors
Model Number :
RK-3030SA-18320
Certification :
ISO9001 Reach,RoHs,SGS,CE
Place of Origin :
Dongguan China
MOQ :
3000PCS
Price :
Negotiation
Contact Supplier
Small Electric Motor 12V RK-3030SA 30mm For Air Pump High Torque Mini Motor
Small Electric Motor 12V RK-3030SA 30mm For Air Pump High Torque Mini Motor
Small Electric Motor 12V RK-3030SA 30mm For Air Pump High Torque Mini Motor

Guang Dong Lihua Mechatronics Co.,Ltd

Verified Supplier
1 Years
dongguan
Since 2003
Business Type :
Manufacturer, Exporter, Seller, Trading Company
Main Products :
Mini DC Motor, Small Motor, Brushed Motor DC
Total Annual :
20598600-21971840
Employee Number :
400~500
Certification Level :
Verified Supplier
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