The Size of Riffles - New 49ers Prospecting Club

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

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Riffles and Sluice Boxes - How do they work?

What is a Sluice Box? Sluicing for gold A sluice box is like a long tray which is open at both ends Most will have riffles, spaced evenly along the length of the sluice, usually every few inches, perpendicular to the length of the sluice

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sluice box riffles test - YouTube

Oct 14, 2011 · Some of our footage You might want to scroll through the slow motion parts Moderate flow rate test Core mine material, quartz, sand, heavies, etc found in

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sluice box riffles test - YouTube

Jun 01, 2017 · Homemade Gold dredge/ highbanker at LDMA Vein Mountain Camp North Carolina 2014 riffle test Worked great I am getting all most a 100% fine gold recovery

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sluice riffles | eBay

Save sluice riffles to get e-mail alerts and updates on your eBay Feed + 1 product rating - FOLDING SLUICE BOX 50 Inch JOBE MADE IN USA + BONUS How 2 DVD $15995 Top Rated Plus { 10" Dredge Box } Sluice, Highbanker,Prospecting Brand New $7852 Buy It Now +$3120 shipping

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Le Trap Sluice Box - dredgenzconz

In working this box, water should run through quite rapidly, about 2” deep, which keeps the riffles clean and will leave the Gold and VERY LITTLE concentrates The gallery picture shows the River Robber in operation as a cleanup tool in a 6″ Keene dredge

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dredge sluice box | eBay

Find great deals on eBay for dredge sluice box Shop with confidence Skip to main content eBay Logo: New Listing Fat Bucket Handles for Mining Sluice Box High Banker Dredge - Lot of 2 Brand New $557 Buy It Now Dredge Sluice Box Sluice Box Sluice Box Kit Gold Sluice Box

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How to SIZE a Sluice Box - Mineral Processing & Metallurgy

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

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Custom Built Highbankers, sluice boxes, dredge, hand

Heckler Fabrication can custom build you a quality Highbanker, Power Sluice, Trommel Sluice Box, Concentrate sluice, Dredge sluice box, Hand sluice box, or modify/update your existing recovery system w/ any of our many options highbanker, power sluice, diy highbanker, gold mining equipment, Flared sluice, "multi-stage" riffles, 16hp

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Double-screen Classification System in Dredging

By adjusting the height of the lower screen over the plastic riffles, and the slope of the sluice box, we are able to control the amount of water-flow over the lower-profile riffles Since the sluice box in the 6-inch Precision was much wider than a normal Le Trap sluice, the prototype required quite a lot of work in a cut and paste project (using of 4 or 5 Le Traps) to create the first underlay recovery system for a dredge

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Suction Gold Dredge Basics - Steve's Guides

A sluice box works because gold is 15 times heavier than sand and gravel and so is easily trapped by the riffles and carpet in the sluice box Dredges almost always need to be mounted on a set of floats

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Hydraulic Riffles ? | Gold Dredging Forum

Dec 03, 2009 · Having a sluice box vibrate is probably not as important to a dredger who intends to dredge rivers with little black sand as it would be to any New Zealand dredgers who dredge the South Island rivers that carry massive amounts of the heavy black sands which clog a sluice box

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sluice riffles | eBay

Save sluice riffles to get e-mail alerts and updates on your eBay Feed + 1 product rating - FOLDING SLUICE BOX 50 Inch JOBE MADE IN USA + BONUS How 2 DVD $15995 Top Rated Plus { 10" Dredge Box } Sluice, Highbanker,Prospecting Brand New $7852 Buy It Now +$3120 shipping

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48" Sluice Box - goldfeverprospecting

This hopper box will fit most any 10" wide sluice Comes with a sluice extension, 2-inch OR 1 1/2 inch dredge inlet (choose from drop down menu) and removable black matting Approx ship weight and dims: 16 lbs 20x20x15 inches Proudly made in the USA! Please note: hopper box is made upon order, please allow approx 1 week for shipping

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dredge sluice box | eBay

Find great deals on eBay for dredge sluice box Shop with confidence Skip to main content eBay Logo: New Listing Fat Bucket Handles for Mining Sluice Box High Banker Dredge - Lot of 2 Brand New $557 Buy It Now Dredge Sluice Box Sluice Box Sluice Box Kit Gold Sluice Box

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How to Build a Sluice Box: The 7 Things You Need to Do It

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 …

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Gold Dredge Sluice Box Plans - bobbywoodchevy

Gold Dredge Sluice Box Plans - happy-hoikushiGold Dredge Sluice Box Plans The Best Gold Dredge Sluice Box Plans Free Download PDF And Video Get Gold Dredge Sluice Box Plans: These free woodworking plans will help the beginner all the way up to the expert craft

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What’s the difference in sluice box riffle? – Prospectors

riffle, sluice box The most common and often asked question we get is, “What is the difference between all the sluices?” One of the primary differences is in Sluice Box Riffle system

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Gold Well Vortex Drop Riffle Sluice Box - Gold Rush

MANUFACTURER'S INFORMATION ON PUMPS: Water flow through the sluice should be between 2 and 8 gallons per minute per inch width of sluice A 6 inch sluice should have a water flow of 12 and 30 gallons per minute The water flow should not go below this And a 12” sluice should have 24 to 96 gallons per minute supplied

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How To Build and Operate Sluice Boxes

For fine gold recovery the use of riffles can actually be a negative design element and most boxes specifically built for this type of gold don’t use any type of riffle system Good examples of this box type are the ‘DFS’ (Damn Fine Sluice) and Steve Gaber’s ‘Pop-and-Son Sluice’

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DIY prospecting & mining equipment parts & supplies

Heckler Fabrication offers sluice boxes to fit most any need Perfect for under a Trommel or a processing plant, as a Highbanker, stream sluice or as a Dredge sluice Our boxes come complete with riffles, Nomad carpet [Miners Moss] & ribbed rubber mat [Shown with optional frame]

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Sluice Components & Parts: Keene Engineering Online

Power & Dredge Sluices / Sluice Components & Parts; $15995 Quick View Power Sluice Hopper Conversion Component $29900 Quick View Sluice Box Frame with Adjustable Support Legs $6500 Quick View Super Lightweight P90G Pump Component $82500 Quick View 2 Inch Suction Nozzle Component $21500 Quick View 25 Inch Suction Nozzle

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My Home Made 3 Stage Under Current Dredge Sluice Box

My Home Made 3 Stage Under Current Dredge Sluice Box Nearly all portable dredge sluices have Hungarian type riffles, and I wanted my homemade sluice to have them as well Fabricating your own gold dredge sluice box takes tools Things like a hack saw, pop rivet gun, drills, wrenches and the like are the minimum The more tools and

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Keene 4" Jet Flare Dredge 3 Stage Sluice with P180 & 263

Keene 4" Jet Flare Dredge 3 Stage Sluice with P180 & 263 Gast Keene’s “3 Stage Sluice Box” provides excellent gold recovery and easy, convenient clean up Note below that in Stage 1 the primary riffles can be removed separately from the other riffles and a new plate covered with deep V rubber matting that is also easily removable is

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Keene 4" Jet Flare Dredge 3 Stage Sluice with P180 & 263

Note below that in Stage 1 the primary riffles can be removed separately from the other riffles and a new plate covered with deep V rubber matting that is also Keene 4" Jet Flare Dredge 3 Stage Sluice with P180 & 263 Gast Keene’s “3 Stage Sluice Box” provides …

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riffles in a dredge sluice box - huizekeunennl

homemade gold sluice box plans gold dredge designs build sluice box riffles homemade gold boxes gold sluice box riffles keene sluice box gold Get Price ; gold sluice box for sale browse gold sluice box in stock and ready for shipping today online sluice box sluice box dredge highbanker wash plant fine gold rush mining hog equipment pan

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48" Sluice Box - goldfeverprospecting

*Aluminum Hopper box with a spray-bar and built-in adjustable water flow and pressure port controls *Sluice Extension *2-inch or 1 1/2-inch Dredge Inlet *Removable black matting Comes ready to go as a hi-banker hopper or can be rigged to be used as a 15" or 2 inch dredge hopper Choose dredge size above in drop down menu This hopper box will fit most any 10" wide sluice

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Riffles versus expanded metal for sluice-box?

Riffles versus expanded metal for sluice-box?: I plan on classifying my material down to at least 1/4" so would expanded metal work as well as small riffles or should I use both? The area will also more than likely be heavy with black sands so I

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I added some length to my sluice box - Gold Nugget Hunting

Dec 20, 2007 · I have an older dredge that has the 55 hp Briggs motor and was setup for 3 inch sluice box and a separate 4 inch sluice with crash box header I have found that this motor has plenty of suction at 3/4 power and was actually overpowering the 12 inch wide sluice with the 3 inch hose

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Best 22+ Dredge Sluice Box Plans | Free PDF Video Download

Dredge Sluice Box Plans Plan, Design and Build a Homemade Gold Sluice BoxA 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

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Gold Dredge Sluice Box Plans - bobbywoodchevy

Sluice Box Plans | Gold Prospecting Equipment and Mining Rocker Box Short sluice with two or more riffles, and rockers under the sluice The bottom of the washing box consists of sheet metal with holes about one half inch in diameter Plans page 2 of 2

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Dredge Adjustments - Gold Prospectors Association of America

I have a 2" Keene Dredge with a crash box sluice on It When it runs the weight of the water brings the end of the sluice down near the water That point is can …

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Hydraulic riffles for fine gold | Gold Mining | Gold

"Setting up your sluice Getting the correct flow velocity and volume is the key to running a sluice Too much water, moving too quickly will carry gold particles in suspension A general rule of thumb for sluice boxes is 1″ drop per foot of length So if a sluice box is 24″ long, about 2″ overall drop from upstream to downstream ends of the sluice is appropriate

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Suction Gold Dredge Operation & Components - akminingbiz

A suction gold dredge is basically an underwater vacuum cleaner Material is transported from underwater to the surface and run through a sluice box to capture the gold A sluice box works because gold is 15 times heavier than sand and gravel and so is easily trapped by the riffles and carpet in the sluice box

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Sluice Box - dredgenzconz

2 Inch Sluice box for backpack dredge 2 Inch sluice box with dredging riffles, screen and $ 43043 +GST for NZ Add to cart A52 Jet Flare Adapter – STE2F 2 Inch Jet Flare $ 6000 +GST for NZ Add to cart Caledonian Classic Sluice

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Gold Sluice Boxes for Prospecting - Water Powered - Gold

The idea is to position a sluice box in a running stream so that the water does the work-- separating the dirt and rocks away from the gold Since gold is heavy, it will stay in the bottom of the sluice, trapped in the miner's moss

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Amazon: gold mining sluice box

This "Nugget Hunter" Sluice box is 30" long with 4 riffles & 11-1/4 Gold Mining Low Profile V Ribbed Mat 12" x 48" x 1/16" Dredge Highbanker Sluice by APGOLF

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Drop Riffle ABS sluice boxes

Sluice Boxes Drop Riffle sluices for the gold prospector who likes to travel light and get the gold others miss Drop Riffles in our sluices allow the gold to drop out of the fluid stream and stop Gold is heavy and once it drops into the Drop Riffle it can not get out

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