How To Suction Dredge for Gold: The Basics

 — One of the most popular pieces of equipment for amateur and seasoned prospectors alike is the suction dredge. Dredging for gold involves using a suction hose to vacuum up sand, dirt, and clay, then …

Suction Gold Dredge Basics

 — A gold dredge is powered by a motor and pump. A common misperception is that gravel is sucked through the pump. The pump actually pumps only water, which is delivered to a venturi type device (called a …

What is Gold Dredging vs. Sediment Dredging?

The main difference is the intention behind the action. Gold dredging is focused on removing gold and other precious materials from waterways. Sediment removal dredging is the intentional removal of accumulated …

Proline Mining – 2.5″ Dredge/Highbanker Combo W/Jet …

Shipping may be refigured. IN STOCK. 27502.5″ Dredge/Highbanker Combo Perfect Size Dual-Purpose Machine Our Proline 2.5″ combo has become very well accepted with many prospectors who feel it's the perfect size dual-purpose machine.

Proline Mining Equipment/Gold Dredges 2"

A rod is supplied for clearing rock jams that occur at the power jet, and actually stays on the dredge when not in use. Through these improvements we were able to shed a few pounds, while making the dredge stronger. We suggest that you compare our features and quality with every other small dredge on the market. No other 2" dredge compares.

Suction Nozzle or Power Jet?

Power Jet Gold Dredge. A Power Jet is more efficient because there is a shorter pressure hose from the pump and therefore less friction losses. The Power Jet enters the suction line just before the sluice, which means the …

Gold Dredge Equipment + Prospecting FAQs & 11 Helpful Tips

A gold dredge is a placer mining machine that extracts gold from sand, gravel, and dirt using water and mechanical methods. The original gold dredges were large, multi-story machines built in the first half of the 1900s. Small suction machines are currently marketed as "gold dredges" to individuals seeking gold: ju…

My 4" Dredge Project

 — Here is my new / old dredge. I have modified my old Gold King from a 2" dredge, to a 4" dredge. It now has a brand new 5.5 hp engine, 4" proline power jet, swivel nozzle, new miners moss, and some expanded metal classifiers of several different sizes, that I can add, switch around, or change out. I have also added a Wal-Mart rubber …

Gold Mining Dredge | Dredge For Sale | Shell Dredging

 — If you are looking for Gold Mining Dredge, then Shell Dredging is here for you. We have deep roots in placer gold mining for almost 50 years. ... Jet Suction Placer Dredge | Call Us: (303) 949-0505. Search for: Home; Dredges. 10" Suction Dredge; 12" Suction Dredge; 15" Suction Dredge; Mercury Reclamation; Joint Venture; Blog; About ...

What is Gold Dredging vs. Sediment Dredging? | GeoForm

Explore all of the differences between gold and sediment removal dredging. From the methods and equipment used to applications. Learn more here! ... Jet-lift: This high-tech dredge works by shooting a high-volume stream of water into the lake or stream, ... The main difference is the intention behind the action. Gold dredging is focused on ...

The Gold Dredge

The differences are: 1. The material is classified 1/3 of the way down the box allowing the fine gold to fall and settle out of suspension ... Dredging for Gold or Advanced Dredging Techniques. The vacuum on a portable dredge is created by a "venturi principal". A volume of water is pumped through a tapered orifice (jet), by a special designed ...

2" or 2 1/2" dredge

 — I'm planning on buying my first dredge, and I'm not sure whether I should buy a 2" or 2.5" dredge (at this time I don't want anything larger). I'm not too concerned with the weight difference between the two. I'd prefer to buy a 2 1/2" dredge, but if I bought a new dredge the 2 1/2" is about $500 more expensive than the 2".

Proline Gold Mining and Prospecting …

2.5" Dredge. This machine was a trend setter when it first came on the market and it continues to be one of our best sellers many years later. When other 2.5" dredges were floating on inner-tubes, required a …

Some dredge basics

When putting together a dredge, everything is a balance. Typically the heart of a dredge is the motor and pump. For instance, the sluice on a high banker or dredge sluice should …

Gold Extraction Equipment | Mining Dredge for Sale

 — The 12" dredge handles an average of 300 cubic yards of material per hour, or 7,200 yards per day. The unit digs by sucking water and gravel through a 12-inch pipe. A unique "Jet Principle" moves the material without use of a sand pump. The water and gangue material are dumped into a flume and washed over a grizzly.

2" Keene Backpack Dredge with power jet

The 2004 PJF comes equipped with a power jet which is ideal for most conditions and provides the most suction power. Net weight is 29 KG. Below you will see a video which explains the differences between the suction nozzle and the power jet model. At the same time Mark Keene shows the newly available accessories for these dredges.

The Archaeology of the Gold Dredge: The Final …

 — A History of Gold Dredging in Idaho tells the story of a revolution in placer mining--and its subsequent impact on the state of Idaho--from its inception in the early 1880s until its demise in the ...

The ? world leader in innovative gold mining and â› ï¸ prospecting equipment! Family-owned since 1955! Order Toll Free: 800-392-4653. Order Toll Free: 800-392-4653. HOME; ... There is so much more to reclamation dredging than just hunting for gold! Recent flooding has created a demand for cleaning out waterways, clearing out ponds, and ...

» Suction Dredging for Gold

The size of a gold dredge is determined by the inside-diameter of its suction hose–usually anywhere from two to ten inches. A single person customarily can operate a four, five or perhaps even a six-inch dredge. ... while still …

Suction Nozzle or Power Jet?

Power Jet Gold Dredge. A Power Jet is more efficient because there is a shorter pressure hose from the pump and therefore less friction losses. The Power Jet enters the suction line just before the sluice, which means the gravel is being "pulled" up the hose rather than "pushed" by a suction nozzle. This can help prevent blockages.

How to choose between a gold pan, gold dredge or high banker

 — I swear I've used a 2″ dredge and thought to myself, "man I could move more material panning". I think when you factor in manually throwing all the 2″+ rocks and nozzle clogs, clogged intake filter and other problems, processing a yard yer hour would be pretty good rate with a 2″ gold dredge. 4+" gold dredge

Power jet vs. suction nozzle | TreasureNet The Original …

 — I use both, suction nozzle for shallow when you might raise the nozzle out of the water. If you take it out it will pick up sution quickly. Power jet for deeper and keeping the nozzle under at all times, the slug of air stops the suction, then when you get it back the action blows through the sluice and disturbs what is in the sluice. may blow gold out!

How To Select a Dredge Pump 101

Dredge Pump Selection Introduction. Dredge pump or slurry pump selection could be a challenging process which could be simplified with the understanding of the primary factors behind smooth pump operation. Apart from delivering a more efficient performance for dredging operations, the right dredge pump requires lesser maintenance, reduced power …

HIGH PERFORMANCE BACKPACKABLE DREDGES

The Model 2004 (2-inch) Backpackable Dredge This super high powered backpackable dredge is equipped with a lightweight, quiet heavy- ... 100 gallons per minute and up to 160 feet of head pressure. The sluice box is specifically engineered for fine gold recovery and easy clean up. The Model 2004 is constructed with an aluminum frame and is ...

Designing Dredging Equipment Wb 3408b

sizes, the cutting head power ranges between 20 kW for the smallest to around 4,000 kW for the largest. The dredging depth is usually limited; the biggest suction dredger can reach depths between 25 and 30 m. The minimum dredging depth is usually determined by the draught of the pontoon. In the late seventies and early eighties of the previous

Proline Gold Mining and Prospecting …

The flare dredges are easily distinguished from the dredges that use a hopper, or "header box", in that they incorporate a large expansion chamber or "flare" which is located between the dredge's power jet and the sluice …

Sluice / Dredge Bucket Recovery System

All of our 4 Inch Gold Dredges have fully assembled dimensions of 73" x 46" x 13" and come equipped with a PJ42 Jet. New 4" Keene Gold Dredge Features: New 3 stage sluice box for unsurpassed fine gold recovery. …

DREDGE SUCTION NOZZLES

of jet size see jet size on the material chart. Prior to welding make the following bore-sight fixture. Cut a disk of wood or similar material that will fit snuggly inside the outlet end of the tube: now drill a hole in the center for a dowel that will fit snuggly inside of the pressure jet to keep the jet precisley aligned for best performance.

Mini Dredges | Piranha Pumps & Dredges | Piranha Pumps

The agitator water jet system is necessary to deliver kinetic energy (energy of motion) to the sediment to take it from a solid state rendering it a fluid slurry. ... That's like asking about the difference between apples and oranges. A gold mining dredge has a totally different design and purpose. A gold mining dredge utilizes a device ...

Gold DREDGES for Sale

Have a question about gold dredging or which suction dredge might be right for you? Call Gold Fever TOLL FREE: 1-888-985-MINE (6463) ... Keene 3 inch Jet Flare Dredge (see new model) Keene Ultra Mini 4" Dredges ( FREE SHIPPING! ) Keene 4 inch Dredge with 3 stage sluice (FREE SHIPPING)

Dredge Jet Log Sizing

 — I'm attempting to piece together a smaller 2.5-inch dredge with a power jet. I go to Keene's website, where they offer 2 separate jet log sizes for a 2.5-in. They have it …

Dredge Jet Log Sizing

 — The internal orifice inside the jet log is larger and will flow more water and provide better suction. A 2" jet log would be even better; however, it will push too much water through the sluice box and affect the gold recovery. " From this, I gather there is a diminishing return on jet log sizing, and 2" is likely the max doable for a 2-1/2 ...

Gold Dredge

Process this sluiced material with a gold pan or other fine gold recovery product. What's the difference between a dredge/highbanker combo and a highbanker or power sluice? For example, #7830 above is called a …