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Old 05-15-2008, 09:46 PM   #1
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Default Cheap motor for mash stirring

It doesn't get much better than this. I plan on using one when I get my system up and running again.
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Old 05-15-2008, 10:18 PM   #2
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Actually, ice cream machine motors were my other avenue of approach. I couldn't find any for less than about $30.

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Old 05-15-2008, 10:24 PM   #3
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I purchased a couple wiper motors for another project. They have an amazing amount of torque for the power input.

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Old 05-15-2008, 10:28 PM   #4
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Hmm. I was thinking about this a while back. Would motors from a blender be any good?

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Old 05-15-2008, 11:14 PM   #5
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Quote:
Originally Posted by ClutchDude View Post
Would motors from a blender be any good?
Not unless you're looking to make a smoothie out of your mash...

Blender motors are direct drive, high speed AC motors. Wiper motors are DC motors geared way down to a very low speed with high torque. Not even remotely the same.

You could probably find a wiper motor pretty easily at any local junkyard, and they'd probably let one go cheap, especially from an old/unpopular car.
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Old 05-15-2008, 11:20 PM   #6
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Nice find, keep us updated on how well it works. I am going to need to get a motor pretty soon.

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Old 05-15-2008, 11:32 PM   #7
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What about a motor for a rotisserie (however you spell it)? What kind of speed are you looking for in that application?

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Old 05-15-2008, 11:57 PM   #8
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Quote:
Originally Posted by ClutchDude View Post
Would motors from a blender be any good?
A blender motor would be worthless, but perhaps you're thinking of a stand mixer? I actually looked for a broken Kitchenaid stand mixer on eBay and some online appliance parts stores. I think the top portion of one of those would be awesome!

Quote:
Originally Posted by sigmund
What about a motor for a rotisserie (however you spell it)? What kind of speed are you looking for in that application?
This one has the opposite problem as a blender motor - it's way too slow, though the torque is probably more than adequate. I want something in the 20-50 RPM range. The wiper motor has two speeds, roughly 30 RPM and 50 RPM. The slower speed seems just about ideal, and several foot pounds of torque should be plenty.
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Old 05-16-2008, 08:04 AM   #9
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I have used a rotisserie/spit motor for mash stirring. About 15 RPM. But here's the thing.
I put 4 paddles on it, so the effective RPM was higher. Given the huge torque, it worked fine and plugged straight into the wall, without need of DC. Problem was it was a bit noisy.
(I now recirculate to distribute heat, and don't have a PITA motor sitting on top of the tun.)

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Old 05-16-2008, 12:44 PM   #10
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Quote:
Originally Posted by Yuri_Rage View Post
It doesn't get much better than this. I plan on using one when I get my system up and running again.
I have been using a car wiper motor for awhile now and it works great I dont know the RPM's but it does turn nice and slow.

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