Reusing a blender motor

In summary, a person had a new Ninja blender that was not working and they found a blog post on hackaday that showed a way to use the motor for a different application. They have questions about how to tell if the motor is brushed or brushless, how to test the motor, and if the motor is viable for their intended use. They also mention the possibility of using the motor for a pedal powered generator. They provide pictures and ask for additional information if needed. Lastly, they mention possible issues with the power cord, capacitor, and circuit boards if the motor is not functioning at all. They also suggest troubleshooting and drawing a schematic diagram for further understanding.
  • #1
TL;DR Summary
How can I test and repurpose a consumer kitchen motor with limited information?
I got a new Ninja blender (model ss351) a few months back that was DOA. The manufacturer sent a replacement immediately, but I found a blog post on hackaday showing a simple mechanical mod that would enable me to use the motor to drive a flexible rotary tool shaft (Dremel etc). The attached images are the motor, the control board and the power board. The purple wire to the control board is directly from the wall outlet.

Simple questions;

How can I tell if the motor is brushed or brushless without disassembling it any further?

How can I test the motor itself to make sure it wasn't the specific component that failed? Will simply driving it from a bench psu do it? What minimun V/I?

Is this motor viable for this application? Optimally, I'd like continuous speed/torque control with a foot pedal. I'm not scared of building a circuit from scratch (_yet_).

If not viable, can I use it for a pedal powered generator?

I can link to the hackaday post and the rotary tool shaft if necessary. Also, obviously please let me know if additional pictures are needed.

Thanks so much in advance


PS - the motor pic with my thumb in it is odly distorted. The plastic disc on top is at least 4x the size of my thumb and the plastic cylinder immediately below the ziptie is about half the size of my thumb.


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  • #2
Very unlikely that the motor has brushes. Here are some images of motors with brushes.

Is there ANY activity at all when you turn it on?... Motor humming, any LEDs (lights) coming on?

1) If not,
Could be a bad power cord.
check that incoming power is getting to board(s).​
trace wiring from power cord to any switch, fuse, or connector to first board it connects to​

2) If motor hums but doesn't turn AND there are three wires to the motor AND there is a somewhat large capacitor (usually not mounted on a circuit board), the capacitor should be connected to the motor and a circuit board.

2A) Verify its wiring to motor, it is Usually connected to two motor wires, and one of those motor wires will connect only to the capacitor and the other motor wire will also connect to other circuits on the circuit board.​
2B) If the capacitor exists, it may be wired to a circuit board and connected to the motor by the board.​
2B1) the capacitor could be defective, or may be an open connection to, or in, the motor.​

3) If the motor does not hum, everything completely dead:
There is probably a bad component on, or bad connection to, a circuit board. This will require detailed troubleshooting on your part, the first step of which is close visual inspection of the boards and all connectors.​
3A) Then you draw a schematic diagram of the circuitry to understand its intended operation and start troubleshooting at the component level.​

Cheers, (and good luck!)

1. Can I reuse a blender motor for other purposes?

Yes, a blender motor can be repurposed for various other uses such as powering a bike, making a mixer, or even a DIY fan.

2. What are the safety precautions for reusing a blender motor?

It is important to disconnect the motor from any electrical source before attempting to reuse it. Also, make sure to wear protective gear such as gloves and goggles while working with the motor.

3. How do I determine the compatibility of a blender motor for my project?

The compatibility of a blender motor for your project depends on factors such as voltage, wattage, and RPM. Make sure to check the specifications of your motor and compare them with the requirements of your project.

4. Can I use a blender motor for heavy-duty projects?

Blender motors are typically designed for light to medium use, so it is not recommended to use them for heavy-duty projects. They may overheat and get damaged.

5. How can I maintain the efficiency of a reused blender motor?

Regular maintenance is key to keeping a reused blender motor running efficiently. Clean the motor regularly and check for any loose or damaged parts. Also, make sure to use the motor within its recommended voltage and RPM range.

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