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Alliant 300-MP Grain Mesh Sizes (Read 2576 times)

John Boy Ex Member	Alliant 300-MP Grain Mesh Sizes Apr 13^th, 2018 at 12:03pm	Print Post
	Alliant 300-MP Lot - CE0515 35 mesh - 15.8oz Hold 40 mesh - Trace 60 mesh - 0.2oz Hold 80 mesh - Trace Total ..... 16oz


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JLouis Frequent Elocutionist Offline Posts: 10625 Joined: Apr 8^th, 2009	Re: Alliant 300-MP Grain Mesh Sizes Reply #1 - Apr 13^th, 2018 at 4:04pm	Print Post
	John doesn't appear any separation was taking place and not at all typical of the 300MP based on my own experience. I ended up with close to 50-50 on the 45 and 50 screens out of 32lbs.sifted with trace amounts on the 40 and dust in the pan. Almost appears as if you were over loading the top screen and the spheres were riding on top of each other and not all being allowed to get down to the screen. If you did not completely cover the top screen but left quite a bit of room for more then you were OK. That also holds true if you were keeping screen comptley void of any being stuck in the screen after each shacking and you also have to shake the stack allot and not just a little bit. Not saying you did it wrong but also not at all typical of my own results so I just wanted to point out the above and per-say my method. JLouis

	" It Is Better To Now Have Been A Has Been Than A Never Was Or A Wanna Be "
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BP Frequent Elocutionist Offline Posts: 8039 Location: Westside Joined: Aug 27^th, 2006	Re: Alliant 300-MP Grain Mesh Sizes Reply #2 - Apr 13^th, 2018 at 5:24pm	Print Post
	Individual technique can produce different gradation results when screening by hand. Standardized gradation testing using the mechanical shakers that the screen stacks are placed into and run for a specified time period, help eliminate variables that hand-screening can produce.

	There are three kinds of men: The ones that learn by reading, the few who learn by observation, and the rest who have to pee on the electric fence and find out for themselves. Proud Noodlehead
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JLouis Frequent Elocutionist Offline Posts: 10625 Joined: Apr 8^th, 2009	Re: Alliant 300-MP Grain Mesh Sizes Reply #3 - Apr 13^th, 2018 at 7:50pm	Print Post
	Some I know would sit the stack on a vibratrory case cleaner but also not the same but better than hand shacking and by far allot easier. I don't own one but at the time I surely wished I did all that hand shaking got old real quick and in no way could my remain consistent so I just over did it all to insure I was doing it as close as was possible for me. JLouis

	" It Is Better To Now Have Been A Has Been Than A Never Was Or A Wanna Be "
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rgchristensen Frequent Elocutionist Offline Posts: 1188 Joined: Jan 2^nd, 2014	Re: Alliant 300-MP Grain Mesh Sizes Reply #4 - Apr 13^th, 2018 at 8:18pm	Print Post
	A good screen shaker is to sit the stack of screens on top of a loud-speaker and connect it to a low-frequency input. The bass sound-waves going thru keep the powder grains bouncing around. CHRIS RGChristensen


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Premod70 Oldtimer Offline Posts: 873 Location: North Carolina Joined: Jan 16^th, 2016	Re: Alliant 300-MP Grain Mesh Sizes Reply #5 - Apr 13^th, 2018 at 9:28pm	Print Post
	rgchristensen wrote on Apr 13^th, 2018 at 8:18pm: A good screen shaker is to sit the stack of screens on top of a loud-speaker and connect it to a low-frequency input. The bass sound-waves going thru keep the powder grains bouncing around. CHRIS RGChristensen Or get the local wanna-be street thug to loan you his boom box😎.


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John Boy Ex Member	Re: Alliant 300-MP Grain Mesh Sizes Reply #6 - Apr 13^th, 2018 at 11:02pm	Print Post
	Quote: Almost appears as if you were over loading the top screen and the spheres were riding on top of each other and not all being allowed to get down to the screen. John, when I came to the 35 screen - it was rotated and shook and juggled with the 40 screen beneath. I'm certain that it was screened well and this is not my first experience sieving


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John Boy Ex Member	Re: Alliant 300-MP Grain Mesh Sizes Reply #7 - Apr 15^th, 2018 at 9:56pm	Print Post
	J Lewis ... I re-sieved the pound of 300-MP and you were right. Too much powder on the 35 mesh screen. So I poured it on the screen slowly then 'rocked and rolled' with this result: 35 mesh - 13.6 oz Hold 40 mesh - Trace 48 mesh - 2.4 oz Hold 50 mesh - Trace


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