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Old 10-22-2012, 02:52 PM   #1
Jul 2010
Hattiesburg, MS
Posts: 111
Liked 3 Times on 3 Posts

I’m having a lot of trouble motorizing my bare-bones Malt Mill.

Please see the attached picture for my application. I have a 1.5” hole centered over the rollers with a 5 gallon plastic water jug attached.
I have tried with a 8” pulley (in the picture) which runs from 240 (3L belt) – 297 (4L belt) rpm AND I have tried a 12” pulley which runs from 157 (3L belt) – 197 (4L belt) rpm. No difference with either.
The motor is 1/3hp, 1725 rpm, 6a. I have not changed the default roller setting and it works fine with a hand crank.

I start the motor and as soon as I add grain the rollers immediately bind and stop. Maybe the motor doesn’t have enough torque?? The full Malt Mill comes with a small bin that has a 3/4" x 1.5" slot in the bottom and a hand crank. Maybe I need to build a bin like the one that comes with the Malt Mill with a 3/4” x 1/5” slot at the bottom and attaching our bottle to a board on top of that, but I see lots of videos doing the way I am trying to do, so I'm not sure where to go from here.

Anyway, I would appreciate any suggestions.


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Old 10-22-2012, 05:13 PM   #2
Bensiff's Avatar
Mar 2008
, Washington, the state
Posts: 4,944
Liked 402 Times on 319 Posts

What exactly is it doing? Is it binding up so that the motor is seizing or is the drive roller still turning but you have a failure to feed?

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Old 10-23-2012, 12:53 AM   #3
beaksnbeer's Avatar
May 2011
New Port Richey, Florida
Posts: 2,845
Liked 507 Times on 335 Posts

I run a 90DC motor on mine only 120rpm but 340lb of torque never binds
Home of the 12 Tap keezer

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Old 10-23-2012, 11:42 AM   #4
Jan 2008
Salem, OR
Posts: 120
Liked 15 Times on 10 Posts

I had a similar setup with my malt mill for several years. I had to have the motor running first and restrict hole from the hopper feeding the grain to keep things moving. I have since changed to a Harbor Freight drill with much more torque.

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