Eric and Erik successfully gravity dredge for gold! Sorry, and I've got to disable comments to protect the claim owners. What I learned about gravity dredgin...

Once the gold has traveled to the bottom of the tube, it follows gravity and drops into one of many slots. Cleanup. A 3" plug, located in the bottom of the storage compartment, is removed to recover the gold. The dredge is placed over a 5-gallon bucket and by turning on the pump, the gold is …

The Model 625 Hand Dredge, works much like a typical recreational suction dredge, only the suction is Immediate Vacuum Response (IVR) and not dependent upon a power jet venturi's impeller produced siphoning vacuum that's driven by the mechanical force of an artificial gravity (see hydraulic mining monitor) type water pressure forced angularly into the dredge hose cavity.

A power sluice "washes" material you shovel into it, whereas a dredge sucks material up from a stream through a hose and deposits it into the sluice. #7835 shown above comes with BOTH types of header boxes AND a dredge nozzle and a bigger pump so you can use this one piece of mining equipment as either a sucking dredge or as a power sluice.

6. Double gold recovery systems to ensure highest recovery rate of gold (up to 98%). 7. Water supplying systems with multiple sets of big power submersible slurry pumps, hoses, valves, etc. 8. Powering system with Cummins diesel generator with all batteries, cables and wires. 9. Gold refinery plant to make final product of gold bars. 10.

The gravity powered dredge works on the same principle as a syphon, that is, that the weight of water in the pipe down hill (at a height below the suction end) creates a negative pressure in the pipe that pulls the water and the gold bearing sand a gravel through the nozzle, down the tube, and delivers it to the sluice …

A more recent dredge, designed by Messrs. Cutten Bros., of Dunedin, in 1903, for the Feddersen Gold Dredging Company, Limited, Three Channel Flat, Butler River, has a length of 86 ft., beam 29 ft., depth 7 ft. The ladder is 56 ft. long, and, when at …

Model 625 HDPBHD Hand Dredge with the Experimental Gravity Trap GOLD Concentrator. With a single elongation stroke of the HG Power Plant, the M625 hand powered suction GOLD dredge is capable of producing enormous suction at the intake nozzle attributable to …

With electric powered Sub-Dredges lengths of over 1000 feet are reached. After 4-weeks of operation in Nome, Alaska, the Sub-Dredge can truly be seen as the new wave of the future in not only dredging but also underwater gold mining and will soon be seen by millions on the Discovery Channel! Click here for PDF view: Sea Technology Article

Fort Knox is an open pit hard rock gold mine that is located in the Fairbanks district. In 2011, they surpassed the 6 million ounce mark for gold recovery, making them the largest producer of gold in Alaska history. At $1200/troy ounce, that translates to $7.2 billion. Fort Knox is located 30 minutes north of Gold Daughters.

gravity dredge + modified sluice box = Need some help guys. hi guys, it is pretty simple. i metal detect, river snipe, pan, sluice and lately decided to modify my JOBE folding sluice box and try gravity dredging. sluice modification: i doubled the size, added a self classifier, some rubber corrugated matting under it for the fine gold recovery ...

The gravity powered dredge works on the same principle as a syphon, that is, that the weight of water in the pipe down hill (at a height below the suction end) creates a negative pressure in the pipe that pulls the water and the gold bearing sand a gravel through the nozzle, down the tube, and delivers it to the sluice …

After watching a few of the gravity dredge videos shown here, we had to try it out on our claim. Did a gravity dredge test with a 30' length of 1.5" vacuum ...

ECO LLC Gas-Powered Water Transfer Pump 2 Inch 160CC 158GPM Heavy Duty Semi-Trash Clean Water Pump Gasoline Engine for Pool Water Remove, lawn garden Irrigate. 4.5 …

Model 625 HDP Gold Hand Dredge with Gravity Gold Concentrator and Dry Vac. The Model 625 Hand Dredge, works much like a typical recreational suction dredge, only the suction is Immediate Vacuum Response (IVR) and not dependent upon a power jet venturi's impeller produced siphoning vacuum that's driven by the mechanical force of an artificial gravity (see hydraulic mining monitor) type water ...

would it work to take a 100 ft roll of corrugated 4 inch pipe to use as the pressure line and use a power jet configuration, using a smaller diameter suction hose with a nozzle, granted the pressure line had the appropriate elevation drop. i would guess using a smaller diameter hose for the suction line and larger diameter for pressure line would have a better chance of working. anyone have ...

6,711. Redding,Calif. Primary Interest: All Treasure Hunting. Jun 10, 2010. #4. Up to a $1,000 fine and up to 6 months in jail-2nd offense-$10,000 fine and a mandatory jail for a year and no dredge permit forever and you ask if sucking is sucking I'd do it in a new York minute-LL I just ran outta water for my black op and screw the environutz ...

Recommended product from this supplier. Low Price River Gold Mining Dredging Machine Sand Pump Cutter Suction Dredger Gold Mining Machineriver Sand Suction Dredge. FOB Price: US $ 150000 / Piece. Min. Order: 1 Piece. Type: Cutter Suction Dredger. Power …

The gravity powered dredge works on the same principle as a syphon, that is, that the weight of water in the pipe down hill (at a height below the suction end) creates a negative pressure in the pipe that pulls the water and the gold bearing sand a gravel through …

Others would dredge large test holes in the stream and not back fill them. This action put many fishing clubs offside. I played with a gravity dredge several years ago and have had lengthy discussions with mines inspectors in NSW and no matter how it is powered; it is still considered by the Mines department as a dredge and is illegal. I would ...

Gravity dredge testing.://://

OKM Gold Labor Au 79 Metal Detector. $2,399.00. For determining the gold content of soil samples, prospectors find this OKM Gold Labor Au 79 Metal Detector an indispensable tool. SKU: 1158-AU79. Call now to order (855) 721-7699.

The Motor Sluice can also be configured to adapt to a dredge from 1.0 to 3.0 inches. The main difference between the Motor Sluice and the standard Gould-Gravity-Trap dredge is that a box is added to the Gould-Gravity-Trap in place of the dredge hose adapter.

Gold Dredge Process Flow. The mineral material is fed by the excavator to the feeder, and then fed by the feeder to the flushing tank evenly. The materials after cleaning off the dirt and debris enter the vibrating screen.. Materials below 0.6cm enter the automatic washing machine; 0.6-1cm mineral materials are cleaned in the grading sieve and then enter the large particle gold equipment to ...

6,711. Redding,Calif. Primary Interest: All Treasure Hunting. Mar 19, 2012. #6. Still playing games with pic resizing here and still lousy results bummer-what you must take in consideration is a bit complex=weight of water--velocity--angle of drop,hose size,gallons per foot in …

No question that many gold prospectors would love to own a dredge, and dredges are very cool pieces of prospecting equipment that will allow you to mine some very nice gold nuggets, but the prices for new ones are really high.Don't forget however, that in the earliest days of dredging, there were no manufacturers, and all small suction dredges were handcrafted units made in someone's garage.

China alluvial gravity gold separating machine. 1. Introduction to alluvial gravity gold separating machine. YlCC1000 gold separating machine is gravity separation type concentrator. We design and manufacturer this kind of gold separating machine according to Nelson centrifugal type gold concentrator, which is the world class advanced seprator ...

2" Dredge/Highbanker Combo. Beginners love our 2" machines because they are small, lightweight and very affordable. The Proline 2" combo offers the versatility of being operated as either a 2" dredge or a small highbanker which can be fed continuously with a small shovel. It's powered by our HP100 pump, which is direct coupled to a ...

The 1.5 inch Dredge Header Box is attached to the sluice by the GOLD BUDDY Header Box Adapter, making the entire sluice almost 4 feet long. The gold dredge is Powered by a JOBE 2.5 horse power, 4-cycle, gasoline pump. The pump and engine combination weighs only 27 pounds and is mounted on a shock-resistant base plate.

Gold Hand Dredging with Model 2125 HDPC in Bedrock Canyon Hand Dredge Gold Nugget Suction Power Model 2125 Hand Dredge and Experimental Gravity Trap Concentrator . Includes: (1) Model 2125 HDP "C" (Clear) Pump Body w/ limited edition 48 ounce 85 cubic inch HG Power Plant (standard HG Power Plant is 32+ ounces and 57 cubic inches.)

A wide variety of gold suction dredges options are available to you, There are 2,030 suppliers who sells gold suction dredges on Alibaba.com, mainly located in Asia. The top countries of suppliers are China, India, and Singapore, from which the percentage of gold suction dredges supply is …

This 8 inch commercial dredge is ideal for gold and gem recovery. Powered by an efficient 67 hp Deutz diesel engine driving our high performance P1500 pump. The P1500 pump produces 1500 Gallons per minute providing ample suction for depths to 50 feet.

After 4-weeks of operation under the 5-foot thick ice of Nome, Alaska, the Subdredge can truly be seen as the new wave of the future in underwater gold mining and will soon be seen by millions on the Discovery Channel! The same can be said for the Diver Operated Dredge that uses the same pump. EDDY Pumps power all of the equipment in our lineup.

Doc's #1 choice for highbanking AND… dredging. 2″ high pressure pump. POWERS: Superhog – Raptor Flare – Mini (with ball valve below). Click the pic for current price. We own 4 of these pumps and they never fail us. Rated at 94 psi and 8120 gph this pump can actually power a 4″ dredge nozzle.

6) Double gold recovery systems to ensure highest recovery rate of gold (up to 98%). 7) Water supplying systems with multiple sets of big power submersible slurry pumps, hoses, valves, etc. 8) Powering system with Cummins diesel generator with all batteries, cables and wires. 9) Gold refinery plant to make final product of gold bars.