• Mill Motor Kit
  • This shows the motor connected and wired (wiring not included)
  • This shows the induction motor with gear box bolted on the front
  • Wiring diagram
  • Shown with the Keg King Three Roller Mill

click on thumbnail to zoom
Item #: B06
Our Price: $189.99
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Do you want to motorize your Three Roller Mill? This high torque geared grain mill motor fits the 12mm shaft on our item B06 Three Roller Mill (and any other 2 or three roller mill with a 12mm drive shaft and 1½" diameter rollers), and features internal gears to spin your mill at 200 rpm. A heavy duty spider coupling absorbs the direct drive shock, and the 1 amp motor has plenty of power to turn. This kit also includes a 10mm shaft adapter, in case you have a Maltmuncher Two Roller Mill.

NOTE: This is for mills with 1½" diameter rollers only, it will not drive larger mills with 2" diameter rollers.

A safety switch is included for mounting on your mill mount. This includes a button that is harder to turn on than turn off (to turn on, twist the red knob and press down, to turn off, just press the red knob).

This kit requires wiring and installation, besides a suitable roller mill, you will need to wire this mill to your 110 volt power source (a plug is not included). You will also need to build a table mount for this mill, and elevate the motor ½" so it will line up with the drive shaft on the Three Roller Mill.  If you have a mill that is not a Maltmuncher, you may also need to purchase a spider coupler if you shaft size is not 10mm or 12mm.

See the thumbnails for mounting and wiring ideas.. When wiring, besides the hot red and black neutral wires coming out of the safety switch that you wire to your house 110 volt hot and neutral lines, you will also need to wire a green ground wire from a mount on the motor to your three prong plug.

For barley malt only, this motor does not crush corn.

Click to download the instructions in pdf format.




Average Rating:
(based on 7 reviews)

Showing 1 - 5 of 7 Reviews:

Review and Rate this Item
by Peter
on 3/10/2020
from Duvall
Nice product, great service
Nice kit with all the parts you need for certain mills.  As it states, it connects to a 10 or 12mm drive shaft.  I have a Monster Mill with a 3/8 inch shaft, so had to get a different spider gear*.  No problem.  Got it all hooked up and working.  

When I first got it going the motor was  under powered. I posted  a review here with a poor rating.  I got an email from Williams the next day to find out more.  They thought I might have a faulty motor and sent out a replacement, which I had in a couple of days.  Upon installing it, everything works great!  It mills up grain easily and quickly, even when i threw some rye at it.

*for reference, I used a TB Woods L050 spider I got from Grainger.  This consists of:
   Jaw Coupling Hub, 12mm, Sintered Iron 
   Jaw Coupling Hub, 3/8", Sintered Iron 
   Jaw Coupling Insert, Buna N, L050 
by Clem
on 7/5/2018
from Ohio
Big Help
I'm old and I didn't like grinding my malt using a drill I had a hook up problem which Williams solved for me have only used it once but it works great.
by Michael Harper
on 11/20/2017
from Denver
awesome kit
I also bought the triple roller grain mill with this. I built a small table with casters and mounted both on it. The wood that I used was just a bit over 1.25", so instead of shimming the motor mount, I just sanded the wood down to the perfect height. I used it the first time this weekend and it was obvious that I got a better crush than at my LHBS and it was all so easy to put together.
by Justin
on 7/22/2017
from Washington
Motor doesn't fit mill
The level of the motor is not level with the mill. I had to use a router to lower the base where the motor sits so that it aligned with the mill. The photo on the website are deceiving. That being said, the kit works like a charm and I'm very happy. 
by JMS
on 5/22/2017
from West Virginia
works as expected
This was a simple installation.  Just had to take a few minutes to make sure everything would line up correctly.  Easily turns our mill to properly crush our grain.  Definitely makes milling 200lbs for a batch much easier then having to use a drill.
Review and Rate this Item
10/20/2019 9:51:43 PM
What are the dimensions of the motor?
3.5" wide, 4.5" wide with included mounting bracket. 10" long with shaft, 8.5" long if you do not count the shaft.
1/13/2019 11:25:10 AM
Couple of questions. 1. Do you have a recommended source for the power cord? 2. Will this fit the malt muncher without any additional couplers?
We used an old computer power cord when wiring ours. This will fit the I13 Three Roller Malt Muncher without any additional couplers, although you will need to fabricate a base.
Frank Ferber
12/30/2018 1:16:48 PM
Can this motor be wired to run in either direction
No, it is one direction only
Chuck Mills
8/6/2018 12:24:33 PM
What is the HP on this motor?
Approximately 1/20 of a horsepower
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