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General Category => Equipment and Software => Topic started by: Hokerer on January 04, 2011, 12:14:45 AM

Title: Mill motor
Post by: Hokerer on January 04, 2011, 12:14:45 AM
In keeping with one of my brewing resolutions, I've started looking at motorizing my mill.  Anybody have experience with a motor like this...

http://www.surpluscenter.com/item.asp?item=5-1098&catname= (http://www.surpluscenter.com/item.asp?item=5-1098&catname=)

...as I'm not sure it'll have enough "oomph".  If I'm calculating things right, it looks like 40 in-lbs torque at 177.7 rpm comes out to a little over 1/10th horsepower.  Anybody know if that's enough?
Title: Re: Mill motor
Post by: jeffy on January 04, 2011, 01:08:42 AM
In keeping with one of my brewing resolutions, I've started looking at motorizing my mill.  Anybody have experience with a motor like this...

http://www.surpluscenter.com/item.asp?item=5-1098&catname= (http://www.surpluscenter.com/item.asp?item=5-1098&catname=)

...as I'm not sure it'll have enough "oomph".  If I'm calculating things right, it looks like 40 in-lbs torque at 177.7 rpm comes out to a little over 1/10th horsepower.  Anybody know if that's enough?

Most of the motors you see for this application are 1/3 hp, but if you gear it slower you can use less.  I have a 12 volt motor from a decomissioned tread mill that turns the mill very slowly, but it works well.  It may take 20 minutes to crush 20 pounds of malt, but it never hesitates or stops.  I suspect it depends on the gear ratio more than the hp.
Title: Re: Mill motor
Post by: Thirsty_Monk on January 04, 2011, 05:15:40 AM
People usually use 1750 rmp motors and then they "gear" it 10 to 1 to about 170 rpm.
So the rmp is about right. 
Title: Re: Mill motor
Post by: tom on January 04, 2011, 07:42:39 PM
I think the gearmotors (already geared like the one shown) are better and safer. That one shown has borderline power, but I know several brewers here use that very one. I hope they chime in.
Title: Re: Mill motor
Post by: rabid_dingo on January 04, 2011, 07:51:32 PM
I have that same one. It works like a charm. It's not about speed its about quality. If it takes
me two more minutes to mill my grain so be it. I got it in October and had it running actively
in the brewery a couple of weeks later.  20gal that week, as I had not had a working mill
since May.


(http://i257.photobucket.com/albums/hh233/Rabid_Dingo/IMAG0507.jpg)

Edit was to add pic.
Title: Re: Mill motor
Post by: dak0415 on January 04, 2011, 07:57:31 PM
I'm in the process of building this very one now.  I'll let you know how it works.

This one is slightly slower with 20% LESS torque
http://www.artisanmaui.com/motormill/

Title: Re: Mill motor
Post by: Hokerer on January 04, 2011, 08:39:32 PM
I have that same one. It works like a charm. It's not about speed its about quality. If it takes
me two more minutes to mill my grain so be it.

No problems with startup?  That is, does it have enough oomph to get going if you load the hopper and then start it up?  Sometimes, with my current drill, I need to get things spinning before dumping in the grain, especially with Rye Malt.

Oh, and nice setup.  That's just about exactly what I'm looking to do.
Title: Re: Mill motor
Post by: Hokerer on January 04, 2011, 08:42:11 PM
This one is slightly slower with 20% LESS torque
http://www.artisanmaui.com/motormill/

Yeah, I'd seen where some folks have used that motor (30 in-lbs) but the same site had the one I listed (40 in-lbs) so I figured it'd be safer.  If enough people are having good luck with the smaller one, I should be golden with the bigger one.
Title: Re: Mill motor
Post by: Thirsty_Monk on January 05, 2011, 05:06:57 AM
Are you thinking about direct drive of drive with belt?
Title: Re: Mill motor
Post by: Hokerer on January 05, 2011, 02:46:52 PM
Are you thinking about direct drive of drive with belt?


With that geared motor, I'm looking at direct (albeit with a spider coupling) drive.
Title: Re: Mill motor
Post by: Thirsty_Monk on January 05, 2011, 10:53:08 PM
Cool.

I might get the same motor but I was thinking to speed it up just a bit to may be 300 rmps.
Title: Re: Mill motor
Post by: Hokerer on January 07, 2011, 05:47:10 PM
Well, I'm trusting you guys and went ahead and bit the bullet...

Thank you for your order, we appreciate your business.  We have
received your order online.

You may check the status of your order online at any time by
visiting the Surplus Center website at
http://www.surpluscenter.com/myaccount.asp and entering your email
address and password.

The item(s) listed at the end of this message have been ordered and
will be shipped to the address shown.

If you have any questions, please contact us via:
E-mail:customerservice@surpluscenter.com Telephone:1-800-488-3407
M - F, 8 am - 5 pm CST for Customer Service
24 hours a day, 7 days a week for placing an order

Thanks again for shopping at the Surplus Center.  We appreciate
your business.

Order Number: I0180605

     1  5-1098                177.7 RPM 115 VAC GEARMOTOR                 39.95
     1  1-3419-C              3/8" L-050 JAW COUPLING HALF                 2.69
     1  1-3419-E              1/2" L-050 JAW COUPLING HALF                 2.69
     1  1-3419-X              BUNA-N INSERT FOR L-050 JAW COUPLING         1.09

                                                 Total $:                 46.42
Title: Re: Mill motor
Post by: onthekeg on January 07, 2011, 08:26:37 PM
Many have used the Beefy Bodine motor successfully.  I'm not sure if this one will have enough power.  Let us know how it goes!  I just use my 1/2in Milwaukee drill on my 3 roller Monstermill.
Title: Re: Mill motor
Post by: Hokerer on January 07, 2011, 08:58:42 PM
Many have used the Beefy Bodine motor successfully.  I'm not sure if this one will have enough power.  Let us know how it goes!  I just use my 1/2in Milwaukee drill on my 3 roller Monstermill.

Yeah, the Bodines aren't available any longer so they were out.  I too have been using my drill on my Monster Mill but I've gotten tired of chucking/unchucking, holding the drill, controlling the speed, and all that stuff.
Title: Re: Mill motor
Post by: onthekeg on January 07, 2011, 11:22:49 PM
I don't use the big drill for too much so I just leave it chucked up.  I built a support for the drill so the weight isn't on the shaft of the mill and just leave it there.
Title: Re: Mill motor
Post by: dcbc on January 10, 2011, 10:53:46 PM
I have that motor run through a 3 way switch on my barley crusher and it is top notch.  I have only had to use the reverse to clear a jam once and it worked like a charm. 
Title: Re: Mill motor
Post by: mainebrewer on January 11, 2011, 01:42:17 PM
dcbd - I've got the same motor that the OP referenced on order.
How did you wire it up so that you could reverse the motor?
Can you put up a schematic?
Title: Re: Mill motor
Post by: dcbc on January 11, 2011, 07:53:36 PM
dcbd - I've got the same motor that the OP referenced on order.
How did you wire it up so that you could reverse the motor?
Can you put up a schematic?

I decided to turn it over to an electrician for fear of the capacitor.  :o

But I gave him the diagram from the second page of this thread on the Brewing Network Forum.

http://www.thebrewingnetwork.com/forum/viewtopic.php?f=4&t=16479 (http://www.thebrewingnetwork.com/forum/viewtopic.php?f=4&t=16479)
Title: Re: Mill motor
Post by: mainebrewer on January 12, 2011, 01:38:57 PM
Thanks for the link!
Title: Re: Mill motor
Post by: rabid_dingo on January 24, 2011, 11:45:04 PM
I have that same one. It works like a charm. It's not about speed its about quality. If it takes
me two more minutes to mill my grain so be it.

No problems with startup?  That is, does it have enough oomph to get going if you load the hopper and then start it up?  Sometimes, with my current drill, I need to get things spinning before dumping in the grain, especially with Rye Malt.

Oh, and nice setup.  That's just about exactly what I'm looking to do.

Thanks. and it starts grinding right away. Fully loaded hopper and it takes. that Artisanmaui link was where I
got the info and built mine. Not exactly how he had it but more suited to my style. I havent tried it with rye
yet but we'll see. I got the grainger parts as described by the site as well. I am just glad that from now on
the only "wear and tear" will be on a part designed to take it, and be easily replaced, if needed that is.



Edited for spelling, aesthetics.
Title: Re: Mill motor
Post by: oscarvan on January 25, 2011, 01:36:18 AM
Hmmm, is that supposed to start up without a capacitor?

I have one of these sitting around...... 1930's Hobart..... Having a hard time finding the attachments which would make it a valuable collectors item.... Have been thinking about putting a pully on it in the mean time.....

(http://www.woodenshoemusic.com/PicPages/Hobart_files/IMG_0841.jpg)
Title: Re: Mill motor
Post by: Hokerer on January 25, 2011, 01:46:24 AM
Hmmm, is that supposed to start up without a capacitor?

The motor we're talking about comes with a capacitor (run, not start, though, I think).  Big honking thing at that (like 2" x 3" x 6").
Title: Re: Mill motor
Post by: oscarvan on January 25, 2011, 01:51:13 AM
OK..... I thought that capacitors were for starting only, I mean, they shoot their load and they are done.... right?
Title: Re: Mill motor
Post by: Hokerer on January 25, 2011, 01:59:39 AM
OK..... I thought that capacitors were for starting only, I mean, they shoot their load and they are done.... right?

No, depending on the motor design, it might use a start capacitor or a run (actually start/run) capacitor.  Here's a decent explanation...
http://forum.allaboutcircuits.com/showthread.php?t=1223 (http://forum.allaboutcircuits.com/showthread.php?t=1223)
Title: Re: Mill motor
Post by: oscarvan on January 25, 2011, 02:18:59 AM
Interesting, learnt something today. Thanks.
Title: Re: Mill motor
Post by: dcbc on January 25, 2011, 04:40:34 PM
One thing I gathered when I was researching this subject is that the capacitor was definitely something you do not want to touch when things are operating.  Mine is housed in a large junction box.
Title: Re: Mill motor
Post by: oscarvan on January 25, 2011, 04:58:08 PM
Yes, that I knew.... not only that, they can hold their load for a while after disconnecting the supply..... so anytime you mess with them, disconnect and then wait a few minutes.
Title: Re: Mill motor
Post by: rabid_dingo on February 01, 2011, 01:50:17 AM
I have that same one. It works like a charm. It's not about speed its about quality. If it takes
me two more minutes to mill my grain so be it.

No problems with startup?  That is, does it have enough oomph to get going if you load the hopper and then start it up?  Sometimes, with my current drill, I need to get things spinning before dumping in the grain, especially with Rye Malt.

Oh, and nice setup.  That's just about exactly what I'm looking to do.

Thanks. and it starts grinding right away. Fully loaded hopper and it takes. that Artisanmaui link was where I
got the info and built mine. Not exactly how he had it but more suited to my style. I havent tried it with rye
yet but we'll see. I got the grainger parts as described by the site as well. I am just glad that from now on
the only "wear and tear" will be on a part designed to take it, and be easily replaced, if needed that is.

Edited for spelling, aesthetics.

I brewed the Denny Conn Rye beer on Friday. The Rye milled just fine. No issues.
Title: Re: Mill motor
Post by: Hokerer on February 01, 2011, 02:35:48 AM
I brewed the Denny Conn Rye beer on Friday. The Rye milled just fine. No issues.

Excellent, thanks.  If that motor handles Rye fine, it'll handle anything.  Just about got all the parts I need so it might be the project for this coming weekend.
Title: Re: Mill motor
Post by: Thirsty_Monk on February 01, 2011, 03:38:19 AM
I am interested.
I think I will be buying the same stuff what you did.
Title: Re: Mill motor
Post by: Thirsty_Monk on March 03, 2011, 02:29:34 AM
I ordered my parts today.
Thank you hokerer.
Title: Re: Mill motor
Post by: Thirsty_Monk on March 20, 2011, 02:51:05 AM
I milled my grain on the motorized mill.
It took 3 min and 25 sec to mill 10 lb of grain.

How long it will take me to mill 300 lb?   :)
Title: Re: Mill motor
Post by: oscarvan on March 23, 2011, 12:35:56 AM
OK, just saw this thread revisited, and in the meantime I did this:

(http://www.woodenshoemusic.com/WSBW/Malt_miling_files/P2090002.jpg)

And as it just so happened, today I added an on/off switch in a box between the motor and the mill. Running over tho the outlet to pull the plug was a little too much.... plus it could be a safety issue.

Quote
I milled my grain on the motorized mill.
It took 3 min and 25 sec to mill 10 lb of grain.

How long it will take me to mill 300 lb?

A long time....
Title: Re: Mill motor
Post by: weazletoe on March 23, 2011, 11:12:17 PM
Yes, that I knew.... not only that, they can hold their load for a while after disconnecting the supply..... so anytime you mess with them, disconnect and then wait a few minutes.

 hehehe....place I used to work at installing air conditiong, when we tore the old condensers out, we use to like to pull the caps out, then discharge them on some poor unsuspecting saps butt! Good times. good times....
Title: Re: Mill motor
Post by: oscarvan on March 24, 2011, 01:16:53 AM
Yes, that I knew.... not only that, they can hold their load for a while after disconnecting the supply..... so anytime you mess with them, disconnect and then wait a few minutes.

 hehehe....place I used to work at installing air conditiong, when we tore the old condensers out, we use to like to pull the caps out, then discharge them on some poor unsuspecting saps butt! Good times. good times....

Don't do that to me..... it may lead to intense pain on your part..... ;D
Title: Re: Mill motor
Post by: narvin on March 25, 2011, 03:52:35 AM
Any update hokerer?

I know lots of other people have used this motor successfully... I'd wouldn't mind another review before ordering it, though.
Title: Re: Mill motor
Post by: mainebrewer on March 25, 2011, 11:26:52 AM
I have the same motor, it works fine.
Fill the hopper, start the motor, mill the grain!
All good!
Title: Re: Mill motor
Post by: narvin on March 25, 2011, 02:15:21 PM
I was also thinking of getting a Monster Mill 2.0 (2" rollers), but with this motor I might want to stick with the 1.5" rollers.
Title: Re: Mill motor
Post by: narvin on March 25, 2011, 05:58:22 PM
Well, I'm trusting you guys and went ahead and bit the bullet...

Thank you for your order, we appreciate your business.  We have
received your order online.

You may check the status of your order online at any time by
visiting the Surplus Center website at
http://www.surpluscenter.com/myaccount.asp and entering your email
address and password.

The item(s) listed at the end of this message have been ordered and
will be shipped to the address shown.

If you have any questions, please contact us via:
E-mail:customerservice@surpluscenter.com Telephone:1-800-488-3407
M - F, 8 am - 5 pm CST for Customer Service
24 hours a day, 7 days a week for placing an order

Thanks again for shopping at the Surplus Center.  We appreciate
your business.

Order Number: I0180605

     1  5-1098                177.7 RPM 115 VAC GEARMOTOR                 39.95
     1  1-3419-C              3/8" L-050 JAW COUPLING HALF                 2.69
     1  1-3419-E              1/2" L-050 JAW COUPLING HALF                 2.69
     1  1-3419-X              BUNA-N INSERT FOR L-050 JAW COUPLING         1.09

                                                 Total $:                 46.42



I also noticed that the couplings you got were only rated for 28 lb-in of torque, which is less than the motor is rated for.  Wondering if this will cause any problems...
Title: Re: Mill motor
Post by: Kit B on March 25, 2011, 07:26:48 PM
Maybe yes & maybe no...
I believe it all depends on whether you want to break couplings, or burn motors.

But, I've been wrong, before.
Title: Re: Mill motor
Post by: narvin on March 25, 2011, 08:38:45 PM
Maybe yes & maybe no...
I believe it all depends on whether you want to break couplings, or burn motors.

But, I've been wrong, before.

They have some rated for higher torque at McMaster, I might just go with those.  Still contemplating whether to try the MM 2.0 or just go with the 1.5" rollers...
Title: Re: Mill motor
Post by: dak0415 on March 28, 2011, 02:01:00 PM
The buna-n spiders(black) are rated at 26 in/lbs.  The urethane spiders(blue)  are rated at 39 in/lbs.  Those are the ones I bought.
Title: Re: Mill motor
Post by: jeffy on April 10, 2011, 05:49:27 PM
I took a photo of my mill yesterday.  It's a JSP with an extended hopper that holds about 20# of malt.  It is powered by a reclaimed 12 volt tread mill motor that runs off a Miata battery.  It's not pretty, but it works well.  It is very slow, but that's what I wanted.
(http://i875.photobucket.com/albums/ab318/jeffyspictures/IMG_1201.jpg)
Title: Re: Mill motor
Post by: narvin on April 11, 2011, 03:35:32 PM
So I bought the motor (177.7 rpm version) and it works great.  No problems with a monster mill 2-roller.  I did buy the larger lovejoy couplings rated for 40 in-lb of torque at McMaster:

6408K123    Flexible Spider Shaft Coupling Hub 3/8" Bore, 1-23/64" OD, without Keyway    $3.62   
6408K712    Flexible Spider Shaft Coupling Hub 1/2" Bore, 1-23/64" OD, with Keyway       $3.62
6408K73    Buna-N Spider for 1-23/64" Outside Diameter Flexible Spider Shaft Coupling Hub   $2.15


I wired it up with a combination single pole / 3 way switch so I can reverse it if necessary, but I haven't had a jam yet.

(http://farm6.static.flickr.com/5184/5609647067_624124444f_z.jpg)
Title: Re: Mill motor
Post by: flipper on April 17, 2011, 02:49:21 PM
What did you use for the bracket to mount the motor?
Title: Re: Mill motor
Post by: narvin on April 17, 2011, 04:37:27 PM
What did you use for the bracket to mount the motor?


Picked these up at the depot... they have holes at just the right spots.  Must either be my dumb luck or some ANSI standard  ;D

http://www.homedepot.com/h_d1/N-5yc1v/R-202033930/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053

I milled 20 lbs this morning and it took approximately 3 minutes.  Go monster mill! I set the gap at .039 using a feeler gauge I got at Auto Zone, and the crush looks far better than what I was getting at the LHBS, so I have high hopes for efficiency improvements.  Plus, I was sick of hauling grain that I had bought by the sack back to the store.
Title: Re: Mill motor
Post by: gmac on April 17, 2011, 04:37:58 PM
So I bought the motor (177.7 rpm version) and it works great.  No problems with a monster mill 2-roller.  I did buy the larger lovejoy couplings rated for 40 in-lb of torque at McMaster:

6408K123    Flexible Spider Shaft Coupling Hub 3/8" Bore, 1-23/64" OD, without Keyway    $3.62   
6408K712    Flexible Spider Shaft Coupling Hub 1/2" Bore, 1-23/64" OD, with Keyway       $3.62
6408K73    Buna-N Spider for 1-23/64" Outside Diameter Flexible Spider Shaft Coupling Hub   $2.15


I wired it up with a combination single pole / 3 way switch so I can reverse it if necessary, but I haven't had a jam yet.

(http://farm6.static.flickr.com/5184/5609647067_624124444f_z.jpg)

Really nice. Love the clean look, everything where it needs to be.  I'm gonna burn out my 18V cordless soon if I don't do something similar.  Just curious, what was the total bill for everything?  
Title: Re: Mill motor
Post by: narvin on April 17, 2011, 05:13:31 PM

Really nice. Love the clean look, everything where it needs to be.  I'm gonna burn out my 18V cordless soon if I don't do something similar.  Just curious, what was the total bill for everything?  

Probably more than I anticipated :). The boards, brackets, junction box for the capacitor, switch and switch box, 16 gauge power cord, and assorted nuts and bolts cost around $60 total, plus $15 for the coupling from McMaster with shipping.  I probably could have saved some money if I had more scrap laying around.  This was on top of the motor (with shipping, $55) and monster mill + hopper (stainless steel rollers, around $190).  Still worth it though.
Title: Re: Mill motor
Post by: Thirsty_Monk on April 18, 2011, 01:55:00 AM
So I bought the motor (177.7 rpm version) and it works great.  No problems with a monster mill 2-roller.  I did buy the larger lovejoy couplings rated for 40 in-lb of torque at McMaster:

6408K123    Flexible Spider Shaft Coupling Hub 3/8" Bore, 1-23/64" OD, without Keyway    $3.62   
6408K712    Flexible Spider Shaft Coupling Hub 1/2" Bore, 1-23/64" OD, with Keyway       $3.62
6408K73    Buna-N Spider for 1-23/64" Outside Diameter Flexible Spider Shaft Coupling Hub   $2.15


I wired it up with a combination single pole / 3 way switch so I can reverse it if necessary, but I haven't had a jam yet.

(http://farm6.static.flickr.com/5184/5609647067_624124444f_z.jpg)
Looks very pretty.
Thank you for the bracket info.

I used galvanized corner hangers but they are too soft to hold the motor.
Title: Re: Mill motor
Post by: wiley on July 12, 2011, 04:39:39 AM
Following the advice in this thread, I motorized the old (well, relatively new actually) MM3. It worked great! Relatively easy and economical -- we'll see how it does with the upcoming brews... I expect to be putting about 150# through this guy in the next 4 weeks, so we'll see if it stands up to the challenge!

Thanks for the knowledge sharing on the forum -- let's keep this up, eh?!

(https://lh4.googleusercontent.com/-sEsb_rNhiA4/ThvTQA-s7yI/AAAAAAAAABE/YwY1JWEybpI/s640/2011-07-09%25252014.49.28.jpg)   (https://lh4.googleusercontent.com/-WA7K6FGp2xU/ThvThjoaanI/AAAAAAAAABM/iCnNJhHhPC8/s640/2011-07-09%25252014.49.48.jpg)
Title: Re: Mill motor
Post by: pyrite on July 12, 2011, 06:04:55 AM
Nice mill build.  What's that in the back? It looks like you live in a small brewery, maybe 15bbl conicals?
Title: Re: Mill motor
Post by: wiley on July 12, 2011, 12:55:02 PM
Nice mill build.  What's that in the back? It looks like you live in a small brewery, maybe 15bbl conicals?

Thanks! I owe all of the credit for the build to the previous posters --

The brewery in the back is my nano in it's pre-launch state -- 7 BBL conicals, B3 sculpture, etc... hoping to take it commercial in 12-18 months with some serious expansion on the brewhouse side. Good eye there on the conicals!
Title: Re: Mill motor
Post by: narvin on July 12, 2011, 01:20:48 PM
Beautiful! 

I wish I had a garage or something... lugging my mill on a board up from the basement (more of a crawlspace) every time I need to brew is a workout in itself  :)
Title: Re: Mill motor
Post by: Thirsty_Monk on July 13, 2011, 02:47:55 AM
Following the advice in this thread, I motorized the old (well, relatively new actually) MM3. It worked great! Relatively easy and economical -- we'll see how it does with the upcoming brews... I expect to be putting about 150# through this guy in the next 4 weeks, so we'll see if it stands up to the challenge!

Thanks for the knowledge sharing on the forum -- let's keep this up, eh?!

(https://lh4.googleusercontent.com/-sEsb_rNhiA4/ThvTQA-s7yI/AAAAAAAAABE/YwY1JWEybpI/s640/2011-07-09%25252014.49.28.jpg)   (https://lh4.googleusercontent.com/-WA7K6FGp2xU/ThvThjoaanI/AAAAAAAAABM/iCnNJhHhPC8/s640/2011-07-09%25252014.49.48.jpg)
I started with similar set up as you have but motor was too small.
I had to replace it with 1/2 hp motor.
Let us know how it works for you.
Title: Re: Mill motor
Post by: pyrite on July 13, 2011, 03:41:14 AM
Nice mill build.  What's that in the back? It looks like you live in a small brewery, maybe 15bbl conicals?

Thanks! I owe all of the credit for the build to the previous posters --

The brewery in the back is my nano in it's pre-launch state -- 7 BBL conicals, B3 sculpture, etc... hoping to take it commercial in 12-18 months with some serious expansion on the brewhouse side. Good eye there on the conicals!

Some day soon then. Keep at it man.
Title: Re: Mill motor
Post by: wiley on August 10, 2011, 09:11:36 PM
Following the advice in this thread, I motorized the old (well, relatively new actually) MM3. It worked great! Relatively easy and economical -- we'll see how it does with the upcoming brews... I expect to be putting about 150# through this guy in the next 4 weeks, so we'll see if it stands up to the challenge!

Thanks for the knowledge sharing on the forum -- let's keep this up, eh?!

(https://lh4.googleusercontent.com/-sEsb_rNhiA4/ThvTQA-s7yI/AAAAAAAAABE/YwY1JWEybpI/s640/2011-07-09%25252014.49.28.jpg)   (https://lh4.googleusercontent.com/-WA7K6FGp2xU/ThvThjoaanI/AAAAAAAAABM/iCnNJhHhPC8/s640/2011-07-09%25252014.49.48.jpg)
I started with similar set up as you have but motor was too small.
I had to replace it with 1/2 hp motor.
Let us know how it works for you.

So far, the only issue has been the spider gear bushing. After a small batch for a yeast starter, I had to replace the poly bushing as it was destroyed. >:( Go for the higher rated bushing and couplers from McMaster Carr. An no, the bushing from McMaster and the couplings from Surplus Center don't play well together... wish I would have known that on brew-day!!
Title: Re: Mill motor
Post by: ronrock on August 10, 2011, 09:24:44 PM
That looks great! Is that the Surplus Center motor? Has enough guts to handle the MM3? I would like to get my mill done soon, but just not sure about that motor.
Title: Re: Mill motor
Post by: wiley on August 10, 2011, 09:35:15 PM
That looks great! Is that the Surplus Center motor? Has enough guts to handle the MM3? I would like to get my mill done soon, but just not sure about that motor.

Thanks! It is the Surplus Center motor -- so far, I've done 3 back to back 25 gallon batches with it. My efficiencies weren't where I was expecting, but I reason that has more to do with the mill gap adjustment than the mill motorization. As far was it being able to handle the MM3, the jury is still out. I've had it bind a couple of times, but I had that with a Dewalt corded drill too... I should have a couple more batches through this guy in the next few weeks, so I'll keep you posted.

At this point, my first impressions are "Meh"... those sentiments might warrant going with a bigger motor; but with a bigger motor, another set of challenges is presented ;)...
Title: Re: Mill motor
Post by: ronrock on August 10, 2011, 09:46:54 PM
Thanks, yeah I know what you mean. I have been very anxious to motorize, but I don't want pulleys and belts. But I also can't seem to find a gear reduction with the appropriate speed and power. I keep hoping I'll run across one of the famed "Beefy Bodine" but so far no joy. I'm not even sure they are actually called Beefy Bodine, that's just what I have heard them referred as.

I'll hold off a bit longer and hope you reply with a thumbs up on your setup. It does look good.

Thanks Again,
Ron
Title: Re: Mill motor
Post by: Thirsty_Monk on August 11, 2011, 03:16:29 AM
Motor was not big enough for me.
I mill about 280 lb a pop.
I switch to 1/2 hp motor with shives and belt.
Working good so far.
Title: Re: Mill motor
Post by: narvin on August 11, 2011, 03:26:24 AM
I get about 5 pounds / minute with the MM2 and the 177.7 motor.  I wouldn't want to do 280 pounds like that, though.  But for homebrew sized batches, it works fine.

Even though it's reversible, make sure you run it in the CCW direction (looking at it, not if you were the motor).  I've seen posts on other boards where it binds up easier running the other way.
Title: Re: Mill motor
Post by: Thirsty_Monk on August 11, 2011, 03:30:54 AM
Yes the 177 rpm gear motor will do just fine with 2 mill roller but it is too small for 3 mill roller.
Title: Re: Mill motor
Post by: joshua7dennis on August 11, 2011, 12:46:07 PM
Yes true it will be very small for 3 mill roller.
Title: Re: Mill motor
Post by: wiley on August 30, 2011, 06:54:36 PM
Yes the 177 rpm gear motor will do just fine with 2 mill roller but it is too small for 3 mill roller.

CONFIRMED!! The 177 RPM motor from Surplus Center is a bit under sized for the MM3. You can run malt through it until you adjust the gap to be tighter. Once the gap is adjusted, the motor bogs down and binds... looks like I'm due for some more research and a new motor --

Thirsty_Monk - would you mind sharing your setup? Did you get the MM3 with the 1/2" drive?
Title: Re: Mill motor
Post by: Thirsty_Monk on August 30, 2011, 07:47:06 PM
Yes I got MM3 with 2" rollers and 1/2" shaft.
I mill about 300lb a batch.
1/2 hp motor from surplus center will do.
I use belt drive.
I have 12" shive on the mill side and 1.75" on the motor side.
You could go with 10" shive on mill side.
If you need more info I can take a pics and point you to the parts source.
Title: Re: Mill motor
Post by: ronrock on August 30, 2011, 08:45:18 PM

Bummer! I was hoping you would have good luck with that setup.

I really don't want to run a belt if I can avoid it. I've been running mine with my Milwaukee Right Angle drive drill. Works great, power to spare. Just not the best looking set up. And I have not checked on the speed yet. I see them often in Pawn Shops, so I'll likely look for one to mount on my mill and cover it up with wood or maybe stainless. Not my first choice, but it will work.
Title: Re: Mill motor
Post by: wiley on September 07, 2011, 04:21:48 PM
Welp, the setup finally took a turn for the worse this weekend  >:(

As a guide to others, I'm replacing the 3/8" drive roller on my MM3 because my pulley supplier can't find a large enough drive pulley (>10" to provide the 10:1 ratio for a 1700 RPM motor) with a 3/8" bore, and my only option is to adapt the 3/8" drive shaft on the mill to a 1/2" shaft...

A word to the wise: if you get the MM3 and plan to motorize the mill, get the 1/2" drive roller... it'll be less painful in the long run!

Cheers!
Title: Re: Mill motor
Post by: oscarvan on September 08, 2011, 12:08:37 AM
Welp, the setup finally took a turn for the worse this weekend  >:(

As a guide to others, I'm replacing the 3/8" drive roller on my MM3 because my pulley supplier can't find a large enough drive pulley (>10" to provide the 10:1 ratio for a 1700 RPM motor) with a 3/8" bore, and my only option is to adapt the 3/8" drive shaft on the mill to a 1/2" shaft...

A word to the wise: if you get the MM3 and plan to motorize the mill, get the 1/2" drive roller... it'll be less painful in the long run!

Cheers!

Slow down! There's a doohickey for that....

http://www.grainger.com/Grainger/DAYTON-Steel-Reducer-Bushing-4X664?Pid=search

Title: Re: Mill motor
Post by: wiley on September 08, 2011, 12:51:04 AM
Welp, the setup finally took a turn for the worse this weekend  >:(

As a guide to others, I'm replacing the 3/8" drive roller on my MM3 because my pulley supplier can't find a large enough drive pulley (>10" to provide the 10:1 ratio for a 1700 RPM motor) with a 3/8" bore, and my only option is to adapt the 3/8" drive shaft on the mill to a 1/2" shaft...

A word to the wise: if you get the MM3 and plan to motorize the mill, get the 1/2" drive roller... it'll be less painful in the long run!

Cheers!

Slow down! There's a doohickey for that....

http://www.grainger.com/Grainger/DAYTON-Steel-Reducer-Bushing-4X664?Pid=search



Thanks for the suggestion! But... the set screw on the spider coupling had it's way with the flats on the drive shaft -- a couple of times (definitely get some key stock) -- so it would take a little machining as well.

Also, Monster recently got the hopper extension so I might as well upgrade all parts at the same time, eh?! The larger shaft drive roller was only $37 + shipping, so it's not too bad -- but, there are the shaft adaptors / bushing options out there.
Title: Re: Mill motor
Post by: ronrock on September 29, 2011, 02:27:35 PM
Hey guys I just bought this motor for my MM-3. I hope it has the power to turn it. From what I have read the motor several have used from Surplus Center is a bit weak for the MM-3. But this one has 90 lb-in torque. It only spins at 85 RPM, but I'm thinking that should not affect the grind, just the time it takes to run the grain through.

This motor was pointed out by someone on HBT. I just checked and the guy has 3 left. I offered 75.00 for mine. It was accepted and shipped fast. Now I need to get the rest of the stuff and assemble my Mill Station. I'll report back.

http://www.ebay.com/itm/BODINE-1-6-HP-GEARMOTOR-42R5BFCI-E3-NEW-BOX-/220849920348?pt=LH_DefaultDomain_0&hash=item336bae595c


Anybody have any input on the effect of the reduced speed? Am I correct in my thinking that it should only affect the time it takes?
Title: Re: Mill motor
Post by: wiley on September 29, 2011, 04:57:40 PM
Anybody have any input on the effect of the reduced speed? Am I correct in my thinking that it should only affect the time it takes?

Until I stand corrected, slower speeds (i.e. 85 RPM) generally shouldn't impact your grist. From the material I've read, your grist and efficiency are most impacted when roller speeds exceed 300 RPM, but I'm sure that's mill specific (3 roller mills may be affected less than 2 roller mills, etc.). I can't really speak to whether 1/6 HP will be enough. I upgraded from the 1/12 of the Surplus Center to a Leeson 1/2HP.

Here's some additional info about RPMs for the MM's. Per the Monster FAQs:

"What RPMs should I run my mill at?

The best speed to run all of the drill driven mills at is around 150-250 rpms. Does it have to be exactly 200 rpms? NO WAY. A range of 100-300 is fine, and if you are willing to have a little more flour, then you can run it a little faster. I generally tell folks to run it as slowly as your drill will run it without stalling plus a little more. It usually takes a little more torque to get the mill going than to keep it going, so you will have to give it some more power to start the mill, and then slow it down once you are milling. You should experiment with faster/slower speeds and see what it does to your grain."

It might be worth asking Monster about though -- in my experience, he's been easy to get a hold of and very helpful.
Title: Re: Mill motor
Post by: ronrock on September 29, 2011, 05:42:42 PM
Thanks Wiley. I thought you might be interested in this motor unless you are already on your way with the pulleys. Certainly hope it works well.
Title: Re: Mill motor
Post by: Thirsty_Monk on September 30, 2011, 01:29:06 AM
Yes the 1/2 hp motor and pulleys work just fine for MM3.
Title: Re: Mill motor
Post by: wiley on November 27, 2011, 03:36:45 AM
Update:

First brew on the improved mill yesterday -- for future reference, definitely go big with the motor and run with pulleys. Sure, you can get by with a smaller motor and other ways of adapting power transmission. But, this thing chewed through 60+ pounds in under 10 minutes with no concern for the mill binding, breaking parts or burning up the motor. Thanks for the 1/2 HP advice, Thirsty_Monk.

Cheers!

(https://lh4.googleusercontent.com/-RTSjHyyVDiw/TtGqzSGlr5I/AAAAAAAAAJg/bVzBgcH4icc/s640/SNC12057.JPG)
Title: Re: Mill motor
Post by: Thirsty_Monk on November 28, 2011, 01:12:31 AM
Looking good.
I will post pic of my mill later.
Title: Re: Mill motor
Post by: bo on November 28, 2011, 02:22:11 AM
Very nice setup. I like that hopper.

Nothing wrong with pulleys, but if you can, get a gear motor. Much smaller layout and safer than pulleys/bets without guards,
Title: Re: Mill motor
Post by: Thirsty_Monk on December 03, 2011, 02:45:55 PM
Update:

First brew on the improved mill yesterday -- for future reference, definitely go big with the motor and run with pulleys. Sure, you can get by with a smaller motor and other ways of adapting power transmission. But, this thing chewed through 60+ pounds in under 10 minutes with no concern for the mill binding, breaking parts or burning up the motor. Thanks for the 1/2 HP advice, Thirsty_Monk.

Cheers!

(https://lh4.googleusercontent.com/-RTSjHyyVDiw/TtGqzSGlr5I/AAAAAAAAAJg/bVzBgcH4icc/s640/SNC12057.JPG)

Here is mine mill.

(http://a5.sphotos.ak.fbcdn.net/hphotos-ak-snc7/391989_249889828406477_100001563866528_696642_2130245634_n.jpg)
Title: Re: Mill motor
Post by: bo on December 03, 2011, 02:52:36 PM
Did you guys make those hoppers or purchase them? I need a larger one that spans the entire opening of my mill.
Title: Re: Mill motor
Post by: Thirsty_Monk on December 03, 2011, 09:49:13 PM
Did you guys make those hoppers or purchase them? I need a larger one that spans the entire opening of my mill.
You can purchase MM hopper extension for $25.
It holds almost 50lb of grain.
http://www.monsterbrewinghardware.com/basehopper.html
Title: Re: Mill motor
Post by: bo on December 03, 2011, 09:55:11 PM
Some assembly required. :D

Thanks
Title: Re: Mill motor
Post by: wiley on December 06, 2011, 06:23:20 PM
Update:

First brew on the improved mill yesterday -- for future reference, definitely go big with the motor and run with pulleys. Sure, you can get by with a smaller motor and other ways of adapting power transmission. But, this thing chewed through 60+ pounds in under 10 minutes with no concern for the mill binding, breaking parts or burning up the motor. Thanks for the 1/2 HP advice, Thirsty_Monk.

Cheers!

(https://lh4.googleusercontent.com/-RTSjHyyVDiw/TtGqzSGlr5I/AAAAAAAAAJg/bVzBgcH4icc/s640/SNC12057.JPG)

Here is mine mill.

(http://a5.sphotos.ak.fbcdn.net/hphotos-ak-snc7/391989_249889828406477_100001563866528_696642_2130245634_n.jpg)

Nice! Looks like our setups could be cousins!