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Recommended Size Classifier For Keene A52 Sluice

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I could use some advice, I'm running my Keene A52 Sluice in a gravel creek, I've tried the Keene BLUE CLASSIFYING SIEVE NO. 002 MESH which is 11.5mm, it seems to let too much bigger stuff through to run directly through the sluice nicely but Keene's are stackable so I was thinking of getting a smaller size for under it.  I was wondering if anyone has a suggestion for the optimal sieve size for the A52? 1/4" seems like it could be the way to go? Do you recommend stacking the things? does it make much extra work or would I just be better off starting with the size I want to finish with? 

Thanks for any assistance.

 

 

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Kinda depends on the size gold in your area.... If everything is smaller than a 1/4 inch no need to do the extra work of double classifying. 

If your working a bank you can set up a 3' x 4' frame with 1/4 hardware cloth and shovel onto it.

collect the classified material under it in a crate or on a tarp the bigger stuff rolls off onto the ground.

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Thanks for the info, as far as I've found the area only has tiny gold, biggest pieces are a under 3mm in size so a 1/4" classifier is the way to go? 

 

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Maybe even 1/8.

The golden rule is .... If everything is the same size, Gold rules.

So the closer you can get all the material to the size of the gold your after the easier it will be to catch the gold.

You may also have to change the riffles in the sluice to something that can deal with small heavy material... Standard riffle will clog and become ineffective.

 

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Thanks for the advice! very much appreciated.

 

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No problem... Happy to help if I can.

Here is a thread that may give you some ideas ... 

 

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