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Gold Prospecting
Do It Yourself (DIY) Projects
This is an Impact Mill rock crusher I built
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<blockquote data-quote="davsgold" data-source="post: 626743" data-attributes="member: 6570"><p>hey muk, do you have a picture of yours on the 9" grinder, I was thinking something similar one day as well using my 9" grinder, but I thought I would try playing around with a 5" grinder mill first to see what works with what.</p><p></p><p>I now know that I can get the 14mm internal thread put into the 25mm shaft which is way better than welding a 14mm nut to the shaft for the attachment to the grinder.</p><p></p><p>If I was making one for the 9" grinder I would use about a 300mm barrel instead of the 210mm for 5" grinder model, I guess most of the other components would be the same and the end plates would be 350mm x 350mm to cover the bigger pipe barrel.</p><p></p><p>PS: and a bigger inlet tube <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /> </p><p></p><p>PSS: and the other thing is the bigger 9" angle grinders only spin at 6000 odd RPM's and this 5" Ozito spins at 12000 RPM's so it's spinning at twice the revs of the bigger grinder</p><p></p><p>But not sure how to work out the difference of distance travelled between a bigger Dia barrel compared to the smaller Dia barrel with a lot faster rev speed, maybe the bigger barrel with slower speed revs works out ok from the feet/second of travel at the outer edge</p><p></p><p>cheers dave</p></blockquote><p></p>
[QUOTE="davsgold, post: 626743, member: 6570"] hey muk, do you have a picture of yours on the 9" grinder, I was thinking something similar one day as well using my 9" grinder, but I thought I would try playing around with a 5" grinder mill first to see what works with what. I now know that I can get the 14mm internal thread put into the 25mm shaft which is way better than welding a 14mm nut to the shaft for the attachment to the grinder. If I was making one for the 9" grinder I would use about a 300mm barrel instead of the 210mm for 5" grinder model, I guess most of the other components would be the same and the end plates would be 350mm x 350mm to cover the bigger pipe barrel. PS: and a bigger inlet tube :D PSS: and the other thing is the bigger 9" angle grinders only spin at 6000 odd RPM's and this 5" Ozito spins at 12000 RPM's so it's spinning at twice the revs of the bigger grinder But not sure how to work out the difference of distance travelled between a bigger Dia barrel compared to the smaller Dia barrel with a lot faster rev speed, maybe the bigger barrel with slower speed revs works out ok from the feet/second of travel at the outer edge cheers dave [/QUOTE]
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Gold Prospecting
Do It Yourself (DIY) Projects
This is an Impact Mill rock crusher I built
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