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Highbankers set up advice
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<blockquote data-quote="WalnLiz" data-source="post: 22248" data-attributes="member: 147"><p>The problem with the hexagonal rubber door mats in a hi-banker arrangement is they only work in areas where there is very little ironstone, and you have to classify extremely small. The mats have a side wall of around 1cm and the holes are only about 2cm wide. The average hi-banker classifies to around 1cm. To successfully clear a 1cm ironstone you need close to a 1:4 ratio for the vortex to lift and move the ironstone, and that's with optimum water speed.</p><p></p><p>You can use many configs of riffles but the 1:4 separation of the riffles is paramount in areas such as "Tuena" where ironstone will "Definitely" block the likes of the hexagonal rubber door mats. If you use these door mats at places like Oallen Forde or areas where the heavies comprise mainly "Black Sand" then you can get away with them on a low volume sluice arrangement,where you clean out very regularly.</p><p></p><p>My suggestion is take one to Tuena and give it a go.....Love to hear how you went, :/ </p><p></p><p>Cheers Wal. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="WalnLiz, post: 22248, member: 147"] The problem with the hexagonal rubber door mats in a hi-banker arrangement is they only work in areas where there is very little ironstone, and you have to classify extremely small. The mats have a side wall of around 1cm and the holes are only about 2cm wide. The average hi-banker classifies to around 1cm. To successfully clear a 1cm ironstone you need close to a 1:4 ratio for the vortex to lift and move the ironstone, and that's with optimum water speed. You can use many configs of riffles but the 1:4 separation of the riffles is paramount in areas such as "Tuena" where ironstone will "Definitely" block the likes of the hexagonal rubber door mats. If you use these door mats at places like Oallen Forde or areas where the heavies comprise mainly "Black Sand" then you can get away with them on a low volume sluice arrangement,where you clean out very regularly. My suggestion is take one to Tuena and give it a go.....Love to hear how you went, :/ Cheers Wal. :) [/QUOTE]
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Highbankers set up advice
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