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57" X 12" The Big One Sluice Box Dredge Gold Mining For Sale

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TheBigOne. The best fine gold recovery. Run a bucket every 20 seconds or 3.6ft3 material/min. Huge capacity.

For lower or slower water flows, all expanded metal will not clog as easy as hungarian riffles. A better choice for the beginner.

For Sale: 57" long, 12" wide 4" highsluice box made by South Yuba Mining Co. A great size for the intermediate to advanced prospector and high volume fine gold applications. Aluminum.063 sluice body construction, stiff and strong yet lightweight. Riffles are 3/4"raised expanded painted black metal-steel, that have a 3/8 vertical drop behind each diamond riffle. Riffles catch and capture the heavies and allow unwanted bigger rocks to flow out of box. Does not load up with rock as easy as regular riffles and does not hold as much unwanted material asHungarianriffles. Expanded metal is thepreferredriffle system for gold <1mm check thisengineeringreport for more info on flow rates, feed 3.6ft3/min feed rate with recommended water flow rate of 160-400gpm for this 12" wide box. Expanded metal riffle box angle is 1.5"-2.5" drop/ft.

Our sluices use black and blue loop matting that catch fine gold extremely well, much better than carpet. The black assay mat at the start gives you an idea of how much gold you are into in a particular hole you are working from. About half the gold will initially hang up in the black matting so you can gauge when a spot is really rich and when its not. The unbacked blue vinyl loop matting really is the best ive found, lets you have more peace of mind knowing that you wont loose the smaller gold if you disturb your water source or mishandle your sluice. At cleanup you will see that most all of your fine gold will be sitting underneath the blue matting in a black sand layer, trapped by the downward force of the clamped riffle tray. Catches bigger nuggets too, they will just drop right in one of the diamonds and stay there. Black matting is siliconed in place, also siliconed on edges of black mat to prevent any gold loss. Riffles are welded with side strengtheners and a rear stiffener.

Made to order, custom addition or changes possible. Front flare attached with bolts and detachable, fitting inside sluice for packing in to the creek.

See my site for links, feel free to contact me with any other questions. We stand behind our products and will offer support if there is a problem in the future.

southyubamining.com





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57" X 12" The Big One Sluice Box Dredge Gold Mining :
$139




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