Sawdustguy
Well-Known Member
Is a motor with 86 rpm and 21 inch-lbs of torque enough for a grain mill?
My motor's torque is at the low limit for any mill.Is a motor with 86 rpm and 21 inch-lbs of torque enough for a grain mill?
Hows that thing do with wheat and rye?My motor's torque is at the low limit for any mill.
The mill base was made by Automatic, a commercial mill company.ClaudiusB what type of mill do you have? Roller lengths/diameter.
No problem with wheat, never used rye.Hows that thing do with wheat and rye?
conpewter never used one.What about windshield wiper motors?
conpewter never used one.
I don't like the idea having to use a large power supply besides the motor.
Those motors draw over 8 Amps under load.
AC gear motors are more convenient, less current.
I checked with the German brewing community, they use windshield wiper motors for mills, and mash mixers.
BrewBeemer as soon you feel better start building your mill, we all like to see it.
Cheers,
ClaudiusB
Sounds great! I'm still working on getting a mill, I'm looking to get a wiper motor as well (as you know Homercidal).
Alright, now you have me intrigued. I have an extra 12 VDC high current power supply I used to power my 2 meter rig with here at home (KB2VVS) that I could use to power the wiper motor. How would I go about attaching it to my Mill? What RPM are the wiper motors? It looks like they will have more than enough torque.
From the website I've been reading Wiper Motor Page
his Saturn wiper motor is 41 RPM on the low, 70 RPM on High and 106 RPM if you connect high to low (not recommended). ~13.5 ft-lb on high (70 RPM)
I'm not sure how to connect it to the mill as I still need to get a motor and look at it.
My motor's torque is at the low limit for any mill.
The mill motor has 16 in-lb of running torque at 94 RPM.
Cheers,
ClaudiusB
I'm not sure if this would work with that particular motor or not:
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=43060
Might be worth looking into though.
It's probably easier to just gear it down with a pair of sheaves and belt.
The most cost effective way to go is with a Harbor Freight 1/2" corded drill motor. Not the most elegant solution, but it is low cost and will do the job well without the need for belts and sheaves.
I went with a gear motor, but I got it for almost nothing.
I bought one of those but it started smoking within moments of using it with my crusher. I put it away in case I needed it for around the garage. No sense in burning up the motor on a single batch of beer.
They probably have larger drills, but the one I purchased was one of the largest hand drills and was supposed to be geared lower too.
I should just have the guy on second shift cut a pair of gears on the Wire EDM machine and mount them onto the crusher. Practically free and I can choose the ratio I want.
The most cost effective way to go is with a Harbor Freight 1/2" corded drill ....
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=47991
32 bucks on sale at HF...used it tonight...I think it could grind a ton of grain w/out missing a beat. 10 amps! I swear this thing could grind all night! There is a dial on top to vary the speeed...this thing works great!
IMHO stop w/ the belts pulleys and other sheaves, this thing will grind all week out of the box.
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