SPG30E-20K DC Geared Motor with Encoder 225 RPM 1.3KgCm 12V


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SKU: 6295
  1. Rated Voltage: 12 V
  2. No-load Current: 70 mA
  3. Rated Current: 410 mA
  4. Rated Torque: 1.2 kg-cm
  5. Shaft Diameter: 6 mm
  6. Gear Ratio: 20:1


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Brand: Cytron
Category: Cytron 12V Motors with Encoder
Tags: DC Motor, DC Geared Motor, Cytron, DC Motor with Encoder, Rotary Encoder, SPG30E, encoder

This is the popular DC Geared Motor featuring an additional magnetic quadrature type rotary encoder. The quadrature encoders provide two pulses which are out of phase, for sensing the direction of the shaft rotation.

Hence, this SPG30E-20K DC Geared Motor with Encoder features both advantages of position sensing as well as direction sensing of the rotating shaft. This application flexibility of the encoders will allow you to control the speed of the base motor very precisely.

The SPG30E-20K is a compact brushed DC motor. The SPG30E-20K DC Geared Motor with Encoder is a low-cost solution for projects such as the medium-size Robot, Omni Drive Robot etc.

This SPG30E-20K DC Geared Motor with Encoder equips 20:1 gearbox for giving the torque of 1.2 kg-cm. The output shaft of the motor is D-shaped which facilitates the better coupling. The shaft has the length os 15.5 mm with the diameter of 6mm.

This is very useful especially when we are building a pulling system or conveyor system. Two Hall effect sensors are placed 90° apart to sense and produce two output A and B which is 90 degree out of phase and allowing the direction of rotation to be determined.

The motor is rated at 12V which will produce 185 RPM with the torque as high as 1.2 kg-cm.

Mounting Instructions
For mounting, the depth of the thread of the motor is 3.2 mm. So, you need to use 3.2 mm length of M3 size screw (not included with the thickness of the bracket). The longer screw will damage the gearbox. You may need to consider the thickness of the bracket or other mechanisms that you need to attach to the motor for choosing the right length of the screw.
Cytron Spg Motor

We are supplying 4 more types of such DC geared motors with Encoders,

SPG30E-270K : 12RPM, 12kg-cm
SPG30E-200K : 17RPM, 8kg-cm
SPG30E-60K : 75RPM, 2.6kg-cm
SPG30E-30K : 150RPM, 1.3kg-cm

Note: These SPG30E DC Geared motors are imported from Cytron Technologies who are the original manufacturers of these DC motors with Encoders. When you will receive the motor you will find that there is a label(which is the sign of genuine product) on the motor mentioning different Motor Ratings irrespective of the listing on Robu.in site. The reason behind that is as you know when we import products we first test them before supplying to the customers, in the testing of this motor we found a slight variation in the performance of the motor and so the ratings as supplied by Cytron Technologies on that label. Hence there are some ratings that are different but yet these are the genuine DC Geared Motors with Encoder from Cytron Technologies.

Note : Connector cable does not comes with motor.

Features : 

  1. It equips 5V Quadrature Hall Effect Encoder.
  2. You can monitor both the position and the direction of rotation
  3. Resolution of the encoder output:
    • 3 pulses per rear shaft revolution, single channel output
    • 900 810 counts per main shaft revolution
  4. Perfect for Bidirectional Position Sensing.

Package Includes :

1 x SPG30E-20K DC Geared Motor with Encoder



Rated Voltage(V)

No-Load Current (mA)


Rated Current(A)


Output Power(Watt)


Rated Speed (RPM)


Rated Torque(kg-cm)


Stall Torque(Kg-Cm)


Shaft Type


Shaft Diameter (mm)


Shaft Length (mm)


Gear Ratio

20 : 1

Gearbox Diameter (mm)


Motor Diameter(mm)


Weight (g):




Shipping Weight 0.19 kg
Shipping Dimensions 9 × 6 × 5 cm
3 Month Warranty Against Sealed Product

This item is covered with a standard warranty of 3 Month from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Warranty  Against Sealed Product:

This product comes with manufacturer seal so, warranty Policy shall cover only those issues pertaining to the manufacturing defects in the product. In any other case, No return will be accepted if the seal is broken.

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User Manual

Encoder Datasheet

SPG30E-20K DC Geared Motor with Encoder 225 RPM 1.3KgCm 12V

Rotary Encoder Arduino Code Detail Guide

The tutorial shows how to run rotary encoder Arduino code and how to read output.

Questions and answers of the customers

  1. 0 votes
    Q is it a permanent magnet dc motor? answer now
    Asked by agmalte on February 9, 2020 5:53 pm


Only registered users are eligible to enter questions
Country Of Origin: Malaysia

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