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JOBE Sluice Instructions Thanks for purchasing your new JOBE stream sluice. JOBE sluices are designed with a riffle set containing both Hungarian and stream riffles. See the illustration below. Both types of riffles are designed to create turbulence that deposits the gold and other heavier values behind the riffles.


This sluice box has been the standard in the industry for decades. Desined with a wider flare for increased flow and made longer for greater capacity. Features a balanced handle for ease of carrying and the flare is detachable for …


Riffles are closer together at 2 inches and aluminum Hungarian riffles to help keep the material moving and not build up like my last sluice does. The first riffle is facing the opposite way to help speed up velocity. My last riffles were 3 inch in …


But over time this lighter material will slowly migrate down the box and finally exit out the end of the sluice, washing out from behind one riffle, and then the next. During the flow, as heavier material comes through, it also settles behind the riffles, and as lighter material migrates, the heavier stuff settles slowly to the bottom.


Sluice Box Rippl To the Editor A- Bolts of the width of sluice for holding tho ripples together The hoop-iron is 1 189 in by 189 in... Know More. Dredge Adjustments. recovery of valu If the sluice does not have enough angle the sluice box will load up causing the riffle openings to fill with unwanted excess material...


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 first Hungarian riffle (Miracle Mat) molded into a rubber mat and built into a portable concentrator sluice measuring 44 inches long by 8 inches wide with built in header box, plumbed with an adjustable flow valve to meter water …


A Recirculating Sluice Box for Gold Prospecting 10 StepsKnow More. Step 2 Building the Box and Cradle The sluice itself is just a simple three-sided box I decided to keep it simple and cheap so I made it out if wood I used a 1 x 6 pine board 36 inches long for the base and 1 x 3 s for the sid Early sluice boxes just had riffles in them They ...


gold sluice box plans Rocker Box Short sluice with two or more riffles, We offer all major brand sluice boxes in all types of materials and sizes. Get Price; Hungarian Riffles In Hand Fed Sluice. hungarian riffles in hand fed sluice . sluice riffles types. Yukon Museum Guide Treasures of the Yukon hungarian riffles sluice box. Get Price


The Hungarian riffles aid in the breaking up process. A drawing of a three-box sluice appears on a following page. This design is patterned after the 'Yukon zig-zag' and permits many feet of sluice box to be stacked up in only …


Hydraulic Riffles VS Hungarian Riffles. In-depth research on gold recovery in the Yukon conducted in 1990 by Randy Clarkson concluded that the "reliability, inexpensiveness and operating simplicity of sluice-boxes are hard to beat". The same still applies, although sluice design has progressed since. Shop for a Gold Wash Plant with ...


On my drywasher I use this type of riffle but it is in reverse compered to a sluice box, It gives a nice place for the gold to settle under the lip, Harder for the air to move material over & out of the box, I have them all the way down the tray. ... potential loss of gold by just ramping over the riffles. Good luck. PS Hungarian riffles are ...


SE'sTrimmable Sluice Box Matting is Made of TPR Plastic for maximum flexibility and easy clean-up. To clean up man, simply roll up and wash with water. Riffle patters will open up and drop your gold and concentrates. Will not stiffen in cold water or weather. This mat is designed with multipel Hungarian riffles, v-matt


The rear portion of the sluice box utilizes "Hungarian" riffles for maximum efficiency and the dredge is equipped with Nomad matting for the ultimate in fine gold recovery. No other 4" dredge even comes close. 4" Dredge …


Most sluice boxes use riffles or obstructions blocking free flow of gravel and sand from being washed out of the sluice box. These restrictions form low pressure pockets behind which gold will accumulate. Gold is 19 times heavier than water and approximately 16.5 …


It's alternating size riffles makes it gre.. $39.95 . Add to Cart. ... With over 13 thousand sold nation wide, this Self Locking Folding Sluice Box is perfectly de.. $149.95 . Add to Cart. Add to Wish List. Add to Compare. Sluice A: Keene A51 sluice. The standard sluice for lightweight prospecting. Our most popular medium size sluice for all arou..


NEW! Trimmable Riffled TPR Light Weight Sluice Box Matting. Featuring: 3 distinct gold catching areas. 3 Riffle Styles include: traditional Hungarian, "V" Shape, and Square riffles. The trend today in sluice box gold recovery is using separate and distinct riffle or matting systems. Not all gold is the same shape of course.


This Aluminum Sluice Box is 33" long & apx 7-1/2" wide at the riffles and 12" Wide at the top of the flair. It weighs just 3.25 Pound so it wont slow you down when hiking a long way to your gold spot. The walls of the sluice are 2-1/2" tall so you can run it in deeper slow moving water, It has 6 Hungarian riffles


Compound (Hungarian) Riffles. From a performance standpoint, the compound Hungarian Riffles supposedly combine the best features of all riffle types. In reality the increased efficiency is very slight. ... to flow velocity and material composition so it is not necessarily a very good design for a 'general purpose' sluice box.


naked sluice channel (body or box) aluminium riffle tray; aluminium riffle tray with Hungarian riffles; flare riffle; sluice box front riffle; matting and carpet; Dimensions: Length 300mm Width (inside) 255 mm Width (outside) 259 mm Height of sides …


Howdy Next1, riffles are usually governed by your pump size/water flow, in a nutshell, you want the water to skip over your riffle, and at least start to flatten out and build up speed before it hits the next riffle, this helps keep the …


riffles. Alternatively the box is divided into two sections, one with and one without riffles. Unfortunately this type of dual-mode sluice is a compromise that sacrifices recovery efficiency somewhat but it saves most of us from having to carry two different boxes, or multi-level boxes into the field.


will clog a sluice box with conventional Hungarian riffles. However for the sake of portability some loss of gold would probably be acceptable to most beginner dredgers. The inclusion of hydraulic riffles on a dredge is the main way known to professional Kiwi dredgers to dramatically improve fine gold recovery when dredging in areas of abundant ...


This green sluice box matting is made out of TPR plastic. It measures 27" long and 10" wide and fits in 8" or 10" metal sluice box. The sluice box matting is trimmable to 8". There are 3 traditional (and proven) gold-collecting riffle patterns within its channel: Hungarian, "V" shape, and square. › See more product details