Grizzly Gold Trap. Scroll down to content. ... From the start, our goal was to support the community of fluid bed sluice users and provide products for this group of prospectors. We will still be here to support existing customers, answer questions on setup and operation of sluices, and produce additional setup and operating videos on our ...

Read more →

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 machine and not by hand.

Read more →

Quality sluice box matting is important not only in a basic sluice, but also for highbanker mat, and on a suction dredge. Riffles do a great job of slowing down the gold, but some type of matting underneath the riffles is required to hold the gold and help prevent it from flowing out …

Read more →

Sluice Box riffles (1/2) > >> The Big Tim: I have a sluice box that is 32" long & 9" wide. It has 5 angle iron riffles, It do NOT have any expanded metal riffles. Would it be a good idea to add expanded metal ripples in conjunction with the angle iron riffles by pinning the expanded metal under angle iron riffles?

Read more →

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 ...

Read more →

Modern sluice boxes are made of steel, aluminum and plastic. Small sluice boxes used for prospecting and hand-digging operations are generally 10 to 18 inches across and 3 to 5 feet long. A sluice fed by a large wash plant might be more than two feet across and ten to thirty feet long. The Mat/Screen/Riffles Sluice Box

Read more →

Jan 15, 2020· A good sluice box should also be easy to disassemble so that prospectors can quickly clean and process materials. Because the riffles create barriers for the gold to become trapped by, it is one of the most important features of a sluice box. The riffles should be made from high-quality material, most are zinc plated, which is good.

Read more →

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.

Read more →

The big advantage of these riffles is that they don't get loaded up even at high feed rates. Vertical Angle Iron Riffles. The vertical types of Angle Iron (or aluminum angle sections) do not seem to perform much better than the sloped flat bar riffles, even though the upper …

Read more →

Oct 16, 2011· Kind of funny how people always talk about special riffles and angles. Here is just a plain straight bar. Great close in vortex.

Read more →

Aug 14, 2016· Old sluice boxes were often longer than 5 feet long with walls that exceeded 12 inches in height. It really isn't necessary to make a sluice box this large. If it is designed properly you should be capturing most placer gold within the first few riffles of the sluice box, and certainly no more than 3 …

Read more →

The sluice should be set at a downhill angle that allows the material to briskly flow through the sluice. The higher the volume of water available, the shallower the angle will be. Shovel material into the sluice at the flared end as close to the end as possible so that the material is washed over the entire length of the sluice.

Read more →

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.

Read more →

hungarian riffles sluice box. ... The Hungarian riffles are made from 24 pieces of "angle iron,, With your sluice box setup and ready to operate, .... 4 Instructions -, Inc, Know More. Gold prospecting sluice riffle inspection. - YouTube. 2012-07-09 Gold sluice riffles after 7 hours run time. Only a moderate amount of pay layer gravels in the ...

Read more →

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.

Read more →

Sluice Boxes Dimensions: 3ft. x 10ft. 2 Units Available Location: Western USA View more Sluice Boxes ID: 295455 Sold Quote + Premium Dry Wash Sluice Box Premium Dry Washer. Equipped with: Hopper: 35½ in. x 21½ in. Angle adjustable. Recovery box: 32 in. x 13 in. Angle adjust ID: 143062 Sold Quote + New Gold 12 in x 48 in Highbanker Sluice

Read more →

Nov 27, 2014· This video shows how to use a SLUICE SETTER to set the pitch of your sluice box. There are different opinions about what angle is right, but once you determine what works in your situation, the ...

Read more →

Oct 14, 2011· sluice box riffles test Gold Hog. Loading... Unsubscribe from Gold Hog? ... Martin Prospecting MS 46 glass gold sluice box set up test 1 - Duration: 11:18. Martin Prospecting 21,419 views.

Read more →

Mar 21, 2016· 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 to order one for yourself. At only ...

Read more →

Most recovery systems on suction dredges use fixed riffles to trap gold out of lighter streambed materials as they are washed through a sluice box by a flow of water. Riffles are baffle-like obstructions, fixed in place along the bottom of the sluice box. They are designed and positioned so that there is a back-pressure created that sucks water and material behind the riffles from the flow ...

Read more →

It should be obvious that proper riffle action is the key to good recovery. An easily built and effective riffle suitable for use in a small sampling sluice can be made from ½" x ½" wood strips placed across the bottom of the sluice at right angles to the flow, with ¾" spaces between each riffle bar.

Read more →

Sluice Boxes: EZ Sluice Box : Jobe Yellow Jacket Sluice Boxes (36" OR 45") Regular price: $129.95 Sale price: Keene A51 Mini Sluice Box Regular price: $119.95 Sale price: Keene Super Mini Sluice Box A-51A Regular price: $115.00 Sale price: SALE ! ! Miners Moss - Nomad Sluice Carpeting Regular price: $29.95 Sale price: Sluice Matting - ribbed ...

Read more →

The cost for overloading a sluice box riffles is the loss of gold. Each time a new load of gravel is dumped into a sluice box with overloaded riffles, any gold in that gravel will wash right over the material that is clogging your riffles and out the discharge end of the box, and down the stream. So mind the sluice box.

Read more →

Optimum Slope of a sluice Slope of a sluice is generally in the range of 1.3 cm (1/2 in.) to 3.8 cm (1-1/2 in.) per 30.5 cm (1 ft), depending on the size rock in the feed. To move the larger rocks down the sluice requires a steeper slope or more water, both of which cause greater gold losses. Any number of types of collectors can be used in a sluice. Most common is the use of astroturf or ...

Read more →

Sep 17, 2019· How Sluice Boxes Work Running a sluice box is one of my favorite methods of prospecting. With relatively little equipment to pack in, a prospector can move a lot of material and develop a good amount of concentrates in a day. Sluices also have the advantage of being hand fed, non-powered equipment, so no gas to pack, no smoke to inhale and no noise to spoil a quiet …

Read more →

The sluice boxes in the days of the 49'ers were very similar to the ones of today. The primary difference is the construction and materials. Sluice boxes were built of heavy wood planks, because lumber was cheap and easily obtainable. Today's sluice boxes are constructed of light weight aluminum and steel.

Read more →

Water flow through the sluice should be between 2 and 8 gallons per minute per inch width of sluice. So a 6 inch sluice should have a water flow of 12 and 30 gallons per minute. The water flow should not go below this. A 12" sluice should have 24 to 96 gallons per minute supplied, but …

Read more →

Sluice box and riffles are one of the oldest forms of gravity separation devices used today (Photo 3). The size of sluices range from small, portable aluminum models used for prospecting to large units hundreds of feet long. Sluice boxes can be made out of wood, aluminum, plastic or steel.

Read more →