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Basically, a sluice box is a long, narrow box with a series of obstructions called riffles in it. If the sluice is placed in a running stream of water, and gold-bearing gravel and dirt is fed into the upstream side, the heavy minerals, including gold, get caught in the eddies created by the riffles, and the bulk of …

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Good examples of this box type are the 'DFS' (Damn Fine Sluice) and Steve Gaber's 'Pop-and-Son Sluice'. On the other hand boxes designed to concentrate gold particles of 16-mesh and up in size must have riffles but don't really have a need for the fine expanded metal mesh or even the Nomad matting though both are recommended.

Riffle height should be no more than 1" tall and then at the top not extend forward more than 1/2 inch and the 1/2 inch part should be elevated 15 degrees above perpendicular to the sluice box and the riffles should then be only 2 inches apart. any more and any less apart will not create the optimum vortex. GG~.

The high banker is a device that cobbles two traditional machines of the Old West prospector. It is mainly composed of a hopper and a sluice. The hopper holds material and feeds it on to the sluice at an adjusted rate. Note that in a river or creek, the angle the sluice is held at does not have to be extreme due to the power of running water ...

Gold Detector. Panning For Gold. Magnet Fishing. Pipe Insulation. Gold Prospecting. Diy Backpack. Hand Dredge. Hand Dredge: A hand dredge, also called a gold sucker, is basically a pump that will allow you to suck up material. They allow you to suck up material in …

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All most all sluice boxes use a carpet or some form of ribbed matting or miners moss as the first trap in the sluice box. The second trap may be expanded metal or a riffle system that goes over the top of the first trap and some might go expanded metal over the first trap with a riffle system over the expanded metal giving the sluice box 3 traps to stop and hold the gold.

The angle of the sluice to determine the proper flow is generally as close to level position as possible without allowing the gravel to build up over the riffles. If the sluice box is tilted too much the material will flow over the riffle section causing needless loss of values. For a more complete understanding of gold recovery techniques, we

I am looking for the best setup in my sluice box. I reckon I might be missing a little bit of the fine stuff whilst sluicing. Whats everyone's take on the mesh versus "straight bar " riffles. I am kind of still new at this but I think that expanded mesh will be better with fine gold recovery than the bars just from the way the water runs over it.

A sluice box is a way to sift through raw material more quickly. Essentially, its automated panning. These machines used to be large and heavy in the early days of panning, but are now lightweight and easier to use. If youre serious about mining, they are worth checking out.

Sluice Boxing 101 By Christopher J Walkin Did you know that fine gold recovery usually makes up for the majority of gold found by small time prospectors? Its much more plentiful and it's usually found in places that are easier to get to. The problem with fine gold is that its so small and improperly set up sluice boxes can let it pass through unintentionally. To remedy the problem you must be ...

I also varied the spacing of my riffles a little so there would be variation in the water flow. Once you get your you riffles done, you will need to have a way to secure your riffles to the sluice box. There is a link below to Amazon where you can order the latches. These are pretty much the same as the ones on jobe and keene sluice boxes.

Not an expert but my smaller sluice used 3/8 expanded metal with a combination of miners moss, carpeting, and rubber matting underneath. Maybe even some angle iron or something to catch nuggets first. For my failed experiment, I used expanded metal and no riffles because I was after sub gram gold, mostly minus 20 mesh.

V Kshirsagar Enterprises. Cast Iron 700 Mm Sluice Valve. ₹ 1.75 Lakh. Rajapur Iron & Steel Industries. Saad Stainless Steel Sluice Valve, Valve Size: 25 MM, Size: 15 To 600 MM. ₹ 4,440. Saad Automation Engineers. Kirloskar Cast Iron Sluice Valve, For Industrial. ₹ 5,000.

I use this setup for my "Tom". 8" wide sluice, 16" of crash box, 3' of slick plate, 3' of Rough Top conveyor belt, moss under 3/4" expanded alum for 3', moss under riffles for the next 6', followed by ribbed carpet the last 4'. Run about 2 1/2" to 3" of water on a 1" to 12" slope, depending on material, sometimes a little steeper.

The box is non-moving and simply uses gravity and the flow of water. As water moves through the sluice box, rocks, small, objects, sand, and gold get trapped in different layers called riffles. The device works more effectively when compared to gold panning as the act of separation is done by a …

I have 15 cm wide angle iron riffle sluice-box followed by 30 cm wide expanded metal sluice box, 1000 l/min water pump and six men shovelling dirt into flume. My practical feed rate is about 60 litres per minute. It works well. _____ By my opinion, this would require a table of some kind rather than a sluice box, a Miller, shaker or wave table.

Gold, Mining and Prospecting: How to Build a Gold Rocker Box: Jun 13, 2012· A gold rocker box is a device that efficiently recovers gold from river sand and gravel that is capable of processing more gold per hour then a gold pan. Its invention was during the Georgia Gold Rush that predated the California Gold Rush by several years.

A Recirculating Sluice Box For Gold Prospecting 10 Steps. basically, a sluice box is a long, narrow box with a series of obstructions called riffles in it. if the sluice is placed in a running stream of water, and gold-bearing gravel and dirt is fed into the upstream side, the heavy minerals, including gold, get caught in the eddies created by the riffles, and the bulk of

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Double Eagle Publishing January 1973 Vol 4 No 1. BUILD YOUR OWN SLUICE BOX The last step is to position the carpeting and riffle tray in the main box then drill four 14 inch holes through the 1 Is the carpeting and the bottom of the main box Install the bolts which ensure that the riffles are held down firmly against the carpeting.

Use the "Sluice Setter" Digital Pitch Gauge to set the right angle on your sluice box, so you're not losing precious gold! Then please go to

A sluice box lined with riffles is one of the oldest forms of gravity separation devices still being used today. They are simple and have been in use all across the world for thousands of years. A sluice is really nothing more than an artificial channel lined with devices to catch gold through which water flows moving the lighter materials such ...

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Looking at yours I would say try increasing the slope of the sluice box a lot more so the riffles are just about vertical, repeat Vertical, Backward sloping angle iron riffles are high energy riffles and work best with a fast flow and a steeper slope to make them effective. Probably better in …

How much water velocity is directed over the box directly affects how much material will stay behind the riffles. When the correct amount of water force is being put through a sluice, its riffles will run about half full of material, and the material can be seen to be dancing and vibrating behind the riffles (concentrating) when the water is flowing.

In the old days Sluice/Long Tom combinations could run from 250' to 2000' long! One reason for this was that they were using their Sluices not only for capturing gold, but to also for classifying the cobble/gravel mix as well as an attempt to handle the …

A sluice box is a very common tool used by new and seasoned prospectors to find gold. They're designed to be used in a stream or a river and have been used all over the world for centuries. If you want to see a quick run down on how a sluice box works, read my post How To Use A Sluice Box. Which Sluice Box Is Right For You.

Testimonial from Jack Reeves; Vancouver, Washington 3-28-09 Wolf your sluice box came today and I immediately tested it against my old box. I used a known quantity of fine and flake LEAD for gold. And your box captured nearly of the flake and fine "gold" while my sluice lost about 30%. The big dust catcher was the dead end box at the "out ...

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