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Hammer mill speed

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Ol Snuffy

12-11-2001 17:05:46




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I have a hammer mill feed grinder "not sure what make". It was origionally ment to be run with a flat belt off a tractor. I am going to convert it to run off my 530 RPM PTO. As far as I can tell it was origionally ment to run at about 3000-3100 RPM. It has a 4" flat shiv on the arbor and concidering that a model A John Deere tractor had a 12.750" diameter shiv and run it at 975 RPM this is where I came up with the 3000-3100 RPM range. Can anyone tell me if this is correct or not? Thanks Ol Snuffy

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Ken

12-22-2001 21:57:56




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 Re: hammer mill speed in reply to Ol Snuffy, 12-11-2001 17:05:46  
The JD 10A hammermill is rated at 3000 to 3200 rpm. The manual has a chart showing pulley size for various tractors with tractor models, tractor pulley diameter, tractor pulley speed, drive pulley diameter, and mill speed.

Mill manuals are available from JD dealers.



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gene b

12-22-2001 03:11:42




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 Re: hammer mill speed in reply to Ol Snuffy, 12-11-2001 17:05:46  
they would weld an assy with two pillow block bearings with a car hub and tireand rim so the tire would make contac with the pulley have a pto shaft and one end to this and the other end to tractor i have one would be glad to get rid of as i am going to use belt more fun



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The Dukester

12-14-2001 07:04:27




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 Re: hammer mill speed in reply to Ol Snuffy, 12-11-2001 17:05:46  
Hammer mills run fast-2400+rpm. You have got to get a way to speed up your pto speed(540 or 1000) to drive the mill. I'd look for a used grinder/mixer or figure on driving your mill with a flat belt from the pulley on your tractor. On grinder/mixers you'll see the expensive way the builders speed up the rpm, usually a big pulley-small pulley multi-vee belt setup, not cheap to rig up on a stationary flat pulley drive hammer mill.

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Chicken George

12-12-2001 13:43:35




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 Re: hammer mill speed in reply to Ol Snuffy, 12-11-2001 17:05:46  
Ol' Snuffy, Knew a ol' boy that mounted a car front spindle & hub to the frame that the "mill" was attached and he put a car tire/wheel on the hub He made an adaptor to hook up the pto shaft to the lug nuts. He wraped the flatbelt around the tire then to the 4" pulley on the mill.He used the air pressure to tighten the belt and keep it tight worked like a charm! just a "cheep idea" Geo.



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krum

12-12-2001 04:51:18




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 Re: hammer mill speed in reply to Ol Snuffy, 12-11-2001 17:05:46  
I have an old John Deere hammermill that is rated to run at 3500 rpm.



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Steven M

12-11-2001 19:50:15




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 Re: hammer mill speed in reply to Ol Snuffy, 12-11-2001 17:05:46  

2800 to 3000 rpm



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