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Tractor Talk Discussion Forum

Hammermill horsepower

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Rick Kr

03-04-2007 05:45:33




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Can anyone give me an idea of how my HP it will take to turn this?

I was thinking of converting it to electric, but I am thinking it might take a little more HP than that.

Its close to home so that helps. Going to inspect it this afternoon. Also, anybody care to ballpark a price?


Thanks in advance,
Rick




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gene bender

03-05-2007 11:40:37




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 Re: Hammermill horsepower in reply to Rick Kr, 03-04-2007 05:45:33  
Would you be interested in a electric hammer mill not huge capacity as it was meant to be used on a timer. It has a belt feeder and auger output.



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Fancy Farm

03-04-2007 06:53:30




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 Re: Hammermill horsepower in reply to Rick Kr, 03-04-2007 05:45:33  
I have a #91-A stover 1936 vintage that should be about the same size you show and per the original instruction sheet which I have the specs and requirements are as folows
r.p.m 2250-2450
HP 15 minimum--up to 35
Pulley size= Driving pulley diameter X Driving pulley speed in R.P.M. divided by the average speed of the grinder



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steve from mo - dangit!

03-04-2007 06:27:52




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 Welp. Long winded answer. in reply to Rick Kr, 03-04-2007 05:45:33  
That's not a big mill as these things go. We had one like that when I was a kid and dad ran it with a John Deere B. It's like John said, how much HP you need depends on how fast you're running stuff through it. I think you'd like running it with a tractor - at least I would.

Remember that you can replace gas HP with about 3/4 that much electric HP, so if an AC WD is 35 HP you'd want 26 electric. The 20 HP would work as well, but you'd need to be careful how you regulate the amount going into the mill.

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buickanddeere

03-04-2007 18:46:34




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 1HP = 1HP Re: Welp. Long winded answer. in reply to steve from mo - dangit!, 03-04-2007 06:27:52  
1 electric HP = 1 internal combustion engine HP. Where the confusion stems from is the electric motors ability to be momentarly overloaded to 225-275% times of it's rated capacity and still keep running. For a few seconds anyways which maybe enough to clear the overload. Run a 7.5HP electric motor on a 10HP load and in a few minutes it will heat up and trip the thermal protection. The internal combustion engine will keep loosing rpm and stall if the shaft torque exceeds 15-30% of the engine's torque when running at it's max HP rated rpms. 10HP is about the largest single phase motor you will find. 16HP is the largest I've found without going to a written pole motor.

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John (C-IL)

03-04-2007 06:06:13




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 Re: Hammermill horsepower in reply to Rick Kr, 03-04-2007 05:45:33  
We had a Montgomery Wards hammer mill about that size on the farm. We ran it with a WD45 fairly well, if you opened the slide too far it would make the 45 talk. Not sure on the conversion to electric, but you will need a gear box or the correct pulley sizes to get the rpm's up. I'm thinking you will need at least 15hp electric and maybe 20hp. For what it would cost to get the electric set up properly you could own a WD45 or WC to run it.

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Rick Kr

03-04-2007 06:27:38




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 Re: Hammermill horsepower in reply to John (C-IL), 03-04-2007 06:06:13  
John and Gary,

Thanks for the quick reply. Just happen to have my Great Grandpas 1946 WC sitting around. Not used for too much exept pushing a little snow.

That gives me a reason to use it more.

Or..... ..... .. maybe I tell the wife it is not big enough to run the mill and I need to buy a WD or 45.

Thanks again guys,
Rick



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Rick Kr

03-04-2007 05:47:29




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 Re: Hammermill horsepower in reply to Rick Kr, 03-04-2007 05:45:33  
Sorry, not smart enough to make a link like everyone else.

Rick

searchable by: Hammer mill allis-chalmers

Link



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IaGary

03-04-2007 06:09:52




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 Re: Hammermill horsepower in reply to Rick Kr, 03-04-2007 05:47:29  
I'm using the SWAG method on this but, I'm thinking it would take at least a 15hp electric motor to run the mill.

But you may be able to feed it real slow and get by with less HP.

You would also have do some checking as to spinning it the right RPM.

By the way, SWAG= Scientific wild a33 guess.

Gary



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steveormary

03-04-2007 07:08:25




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 Re: Hammermill horsepower in reply to IaGary, 03-04-2007 06:09:52  
Rick, We ground ear corn with an old hammer mill and an F12 Farmall to run it.Thro in a scoop full of the ear corn and duck. Then wait for the F12 to get back up to speed. The hammer mill would throw corn all about and it would sting pretty good.

steveormary



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