Is it possible to run a blender with a DC motor if so how hard would it be and if it safe?

Question

Maybe a brushed DC motor

Answer 1

The voltage you want to run this on is important. While its true that many domestic appliances have universal motors and so work on ac or dc, 120v dc is often rare.

Presumably you have a particular voltage you want to use such as 12vdc. In this case it would be difficult to find something that would fit in too well, although the lower voltage would be very safe.

You may want to consider using an inverter to get 120v ac from your dc and leave the motor alone.

Answer 2

Well, a DC blender will run on DC, for example: http://www.amazon.com/Vector-Porta-Blend... However, the 12VDC blenders tend to get very poor reviews, so maybe it is not the best idea.

The other answers about universal motors being common in blenders are also correct, but most blenders now days will have electronic SCR or Triac based speed controllers that will not work with DC, even if you did have 120V DC.

Answer 3

I have an older kitchen blender that has a universal motor. That is essentially the same thing as a series field DC motor. Any kind of motor could be used as long as it meets the design requirements of the blender. If you are talking about changing the motor in a kitchen blender, that is probably pointless and could be unsafe.

If you are asking about some type of industrial blender, the answer is about the same. However, if the area contains vapor or dust that presents an explosion hazard, you need a motor approved for use in the area. That would be very expensive and possibly unavailable in any type of brushed motor.

Answer 4

well as far as i can understand blender needs just a rotation

no matter what is the supply type

if dc motor can rotate blender's plate with enough torque it is okk

Answer 5

Any appliance with a DC power supply and a motor uses a DC motor, so they are certainly in wide use.

In general, though, it's not a good idea because AC motors can be grounded to make them safer in a short circuit.  This isn't as important for low voltage, low current DC motors, but in a blender you probably want the added safety margin.

Answer 6

More Slack, and Retired EE are right, so far as home appliances are concerned. Those motors are universal motors. They can be run on DC or AC.

Answer 7

The blender might already work on DC - they tend to use what's called a "universal" motor, which is a brushed motor with a field coil.