U-Tech makes a shaker table at a reasonable price of $2000 US new.
They can be found at
http://www.goldequipment.com/gold-mining-equipment-concentrating-table-RP-4.html
I have no idea of their quality. Has anyone here used one? Apparently
it has rotating magnets beneath the table that effectively float magnetite off.
For small samples, a bit of panning goes a long way in sample
reduction depending on how heavy you want your heavies. A pan is much
easier to clean as well.
If your heavy separates from the shaker table (or panning) are going
to a magnetic separator, you should make sure you either dry them
quickly (i.e. IR lamp over a hotplate) or rotate your frantz magnets
to vertical and run the heavy separates wet though heavy mineral
separation glassware placed flush with the magnet to remove magnetite.
If you let magnetite linger in a wet sample (say, drying in an oven
overnight), their is potential for "rust" to accumulate on grains you
want to separate.
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