UnderFlow River Sluice Box Gold Mining Equipment MUST SEE! With Classifier Gold Collection System

www.grumpyprosp...
UnderFlow Sluice Box Gold Mining Equipment www.grumpyprosp... - ENJOYING the day in the Colorado Rockies. Demonstrating the "UnderFlow" River Sluice, This is pre production prototype I used for fine tuning the Production line. The Production lines will be the best, most efficient Gold Collection System available to the public to date! Many different sizes and System choices available. Check us out at:
www.grumpyprospector.com

[@sounddoctorin]

Yeah there's obviously potential for even some large flakes to fly out the sides since often the flakes are trapped in blobs of clay etc. even. Classifying is going to remain a separate step for me at least :-).

[@rockycroskey6318]

Next time u do an on site demo it might be a good idea to use some paydirt that actually has some gold in it.Then I may be interested a little bit

[@crystldigr]

maybe a long tom at the leading edge to the classifier would help wash the silt from the larger rocks prior getting washed away. it did seem in the video that there was a lot of silt going out the sides and not into the traps. besides that, your design is great. very innovative

[@XGrumpyProspector]

Done, my production UnderFlow of that size is wider, a longer Material dump plate, and 3 traps. I will post pictures of it in use soon.

[@loslolloslolollos]

Cool, you are the first guy, who dont likes the big nuggets! Cause they alle go away at the sites!

[@XGrumpyProspector]

@XGrumpyProspector Answer Part 3, Small nuggets hit the slick plate with the sound of the large rocks landing on the plate, they drop immediatly. I also have a deflector plate that is hinged at the top of slick plate, below where you dump material that flaps under the rush of water & over the surface to knock down any floater Gold flakes insuring they lose the surface tension & drop to the classifier. You are very right on increasing the slick plate length to accomondate all that is needed there

[@XGrumpyProspector]

Gold drops amazingly quick in liquid, I have watched it land on top of lighter material and still not move downstream very little, as the material under it washed out from benieth it, leaving the Gold sliding along anything more solid than its dropping force. I like your thoughts to tame the fine to micro fine, in a torrent of high waterflow, Brilliant I must say! Cause its all about Getting to the Gold. For those that deserve some! Keep in touch, The Grumpy Prospector

[@crystldigr]

my mistake,I posted this prior to seeing your other responses to the same comments or even your website with the full production model. it looks like i will be adding a new tool to my arsenal. keep it up.

[@jcadult101]

I think the underflow idea is fascinating. In watching this video however, I wonder how much fine material has settled prior to hitting the 1/4 screen. At 1:14 after first shovel, there appears to be a great deal of dirt in the side discharge and some going over the diverter. I'd be most curious to see a demonstration which involves a collection tub under the diversion area to show what has bypassed the 1/4" screen. Panning all tailings to show gold isn't being lost would be most beneficial.

[@spazzingnoob]

Wouldn't a nugget get washed off?

[@kevinroberts781]

Not sure if you even monitor this post anymore but I must say, I love this design.

[@XGrumpyProspector]

In my actual production model, the material input plate is 2' longer before the classifyer. And allows extra insurance gold will drag and slide the bottom. I have great video of gold dragging well behind all material within the first inches of input & going through the classifyer. As for light material -silt & such, we want that to exit anyway it wants. It does trouble "some" viewers seeing silt go off the side eject. But for me its A-Ok.

[@TheodeScottBand]

This is a killer diller design...and will work great for fine Gold areas...I am impressed

[@sounddoctorin]

you may be right on that. It just seems something is missing in the design though. Like maybe a longer 'throat' at the beginning where stuff can separate a little more. Anyway probably a good idea overall. One can work weeks for 5.00 of gold pretty easily :-)

[@XGrumpyProspector]

Also at he material dump (not pictured in this video) is a suface deflector plate, in which will be attached when in actual Gold collectin use. That forces ALL material even the bobbers from floating on by! I'll keep using this so called contraption, as it is GETTING ME LOTS OF GOLD. ---- Clean and Quick ------

[@XGrumpyProspector]

This video was to demonstrate the classifyer section only, on its ability to size material inline and prior to the traps. I've used this for a long time now and it sepperates and collects Gold at significant speed with excellent capture rates on even the super small gold. The day of this video I forgot to check the traps for any gold, as my focus was on the classifier.

[@XGrumpyProspector]

Yes, add the proper W's before and the ending com . We are working out some minor initial bugs such as missing pages and non working videos. Adding paypal option, and more products and option all along the way - From the Mini UnderFlow all the way up to Full scale commercial designs.

[@XGrumpyProspector]

When the first pioneers of flight hammered out their first flying devices, They sure didn't build the fighter jets you see today! Prototypes and innovation create the masterpiece. For those that question? Keep flying your Ultralights. For those that want to get gold without the labor & time consumed of panning, well just ask the users that actually bought our river sluices, or try one yourself. As me I'm sure they are out getting it! We don't have remaining time to sit around here deliberating about it. : )

[@XGrumpyProspector]

@XGrumpyProspector Answer Part 3, My Dredge Sluice System that I have now decided to produce as the river sluice also has classifiers that allow all material to go over the top of the classified traps. In which I can now put three various Gold collection traps inline in one sluice catching ALL Gold form course nuggets at the top, and Micron Gold by the third trap. For the River or High Banker Sluice I will still have the option of the large material shedding Classifier after the slick plate

[@XGrumpyProspector]

@ReedLukens Answer Part 1, Thanks for comment. Yea, You are right and I have already increased the slick plate length, increased the classifier length for the production line. I could easily shoeten the distance between traps, to keep overall sluice relativally short. The first trap catches all the Gold, I just add the second for insurance and run it as you see abit slower just to make sure no fine Gold gets off the end.

[@bobbrown690]

I think so too. I'd like to see the shovel load spend more time on the slick plate before before being forced off the sides of the sluice without giving time for a good washing, agitation, and rinsing of the rocks etc, to allow for all the dirt, clay, sands and gold to go through the screens instead of going out with the larger rocks. Maybe a spring tensioned or manually opened horizontal gate door to keep the rocks in longer since you're waiting for the sluice to process the dirt anyway.

[@XGrumpyProspector]

This is a prototype unit and was used to show the classification abilities of the sluice. Our Ultimate River Sluice listed on the website has a longer run of slick plate and works like a dream. We will be posting new videos soon showing the Ultimate River Sluice in action catching both larger Gold and fine Gold as well. Thanks for watching and for your comments. Feel free to ask questions if you have them. Check out our entire product line up at grumpyprospector d 0 t c 0m.

[@scottbecker45]

that was one thing i noticed, it looks nice....if you are in extremely gravely material i think it would work just fine...The areas where i have prospected the rocks didnt wash nearly fast enough for this system...and i know when im using my highbanker i work the material with my hand and make sure the rocks are clean before i sluff it off into the tailing pile. Very nice idea, just worried the material washes out much too fast.

[@XGrumpyProspector]

Thats cool, Using an inline classifier as the video shows, allows more material to be moved in a given timeframe. Essentually in the time you spend classifying your material you run less through your device. In most all cases you will capture much more gold in the same timeframe by simply using an inline classification system. Ok, you may lose a flake or two. But more gold was caught durring the runtime than when you spend time classifying all the material with less actual sluicing time.

[@electronicdawg]

Thats what I meant was the light stuff, my suggestion would to be get rid of the, ejector part and build the sluice alluvial style, also ant gold barring quartz will also get blown out with the large rocks.

[@tmru2b]

(Comment continued...) I'm def not criticizing...only looking to lend a thought... I REALLY dig your ingenuity on this one!! Hoping a small UnderFlow might be in my future!

[@XGrumpyProspector]

I have witnessed zero nuggets washing away. If this system is ran & used properly. Its like riding a bike, if a bike is provided, the user must learn to ride it for purpose success!

[@thevikingwolfpack836]

I'd love to have something like this for my sluice Fox sense you can join them together side by side to have it feeds 3 different sluice at once.

[@XGrumpyProspector]

The larger Nuggets do stick on the classifier and are easy to pick out there. 2 UnderFlows are extremely efficient, The First one gets most everything. While, when set up properly the flake gold and such can be caught in the second.

[@XGrumpyProspector]

@ReedLukens Answer Part 2, I also could easily put a Micron Gold trap attatchment right at the end with its own Classifier. The smaller material you see going off the classifier would contain "NO" Gold. You are seeing the lighter rocks and fine earth dirt that dont sink as Gold would, & bounce along the classifier or float above. Gold does not do that and goes through the classified screen. I have played with Gold for long hours on this topic and the Gold Drops qiuck and slides along the bottom

[@coptechgold]

I like the looks of this sluice. Very interesting indeed.

[@123Goldhunter11]

Great invention and I thought I'd seen it all.

[@XGrumpyProspector]

: ) Losing dirt and dust, Yes, losing Gold, No. Even the fine Gold sets to the bottom very rapidly. I have a set, that stops even the floater Gold from escaping. (not Shown). Also for my production model of this river UnderFlow, the Material dump slickplate Is longer, ensuring one should not put their material to close, or onto, the classifier. The Gold will drop near instantaniously and slide the bottom through the classifier and into the UnderFlow traps.

[@jungojerry1658]

I would pre-classify first thru a screen on a bucket - not throw out nuggets bigger than your grizzly.

[@Believerification]

Great idea. You should make some money on that idea. I'm surprised no one thought of it before.

[@mofooutdoors3773]

Great design/s .reminds me of something a 1800's prospector would use. Its Sweet.

[@XGrumpyProspector]

In Peru South America, a large claim owners bought 2 of them. They said it captured every gold they put at it! And now ordered 5ea. 4' wide x 15' long in sucession of 3 connected classification sections. And are to order 100+ more of the same. They also have the "Gold Rush" Discovery Channel cable show mining on their claim. They put the small one they bought at the end of the big red sluice those guys use and caught massive amounts of gold they are losing daily!

[@XGrumpyProspector]

Hey, I can easily do that, If you know how Gold moves in the forces of Gravity & water flow, even the fine Gold drops near instantainiously. I will demonstrate this in another video. Unless the Gold gains surface tension, It may be possible to float past. That is rare case. Just because you see dirt and rocks going off the discharge, does not mean any Gold is. It is hitting the bottom "within" 1" of drop in the 2'" inch of water depth & sliding along the Slick plate through the classifier.

[@XGrumpyProspector]

Yea, losing dirt and dust is not much of a concern. As explained below. Gold drops very rapidly and slides the bottom through the classifier. Rocks the size of marbles can weigh less than a 1/8th inch Gold nugget. So if you drop both in a fast current the Gold will drop immediatly, due to its weight & small size. As the rock weighing the same will land bottom down current. possibly several feet depending on water depth. Why? weight, size, Its profile allows more resistance and is pushed further.

[@XGrumpyProspector]

Yea, this was my original prototype that worked exceptionally well considering, and proved me well the classification design is very good. GO to my website in the wording below this video and there you will see the production design of this Idea. The Ultimate Underflow River Sluice. It is exactly what you just said a much longer material entry plate.

[@XGrumpyProspector]

: ) this type construction was for video reason only. But has retained me much Gold as it is. My actual UnderFlow Sluices have metal bottoms so abrassion on plexiglass is not possible. As said prior, "no" floaters get past my traps.

[@XGrumpyProspector]

Hmm, now your suggesting losing heavy stuff? (definatly not the case here), I test all facets of the construction, this is why I made it with lexan, so I could monitor all movement of Gold through the entire system. I also test Gold flow here at home, but will not reveil that publically. I tried to tell you the traps catch most ALL Gold and some gemstones types. The only difficulty would be the flake gold, but as with other things I don't show on youtube, I have that covered as well.

[@XGrumpyProspector]

Dumping in more slowly, makes good sence. and would allow more settling of material. or a longer drop before the classifier. AS LONG as no Gold goes off the waist shute, It would not matter what size & shape waist material does. : ) As no one is seeking waist material. The Grumpy Prospector & Dark Canyon Designs

[@pascoeladsfishing1779]

great machine, how are you planning to save the lost material that was clearly pouring out the sides? good concept though. cheers Donnie

[@Fathercoffee]

You can clearly see that small material is washing out the sides in this video though. Maybe if you put the 1/4th inch opening further up the sluice and the ramps down further then it would work better.

[@XGrumpyProspector]

Your Right, and I'm cramming. I'm starting with 2 lines - a Mini UnderFlow, and a River or Highbanker UnderFlow Sluice simular to the size of the prototype in this video. I am taking requests from any of my subscribers, & I will cater exclusivly to them first. Custom builds in a sence, if your need is differant than the initial models I will start with. I Guess Monday the 2nd, I will open the Site. I might light it up Sunday evening.

[@BoldUniverse]

I don't buy it, a lot of gold of all sizes would immediately be washed straight out the side BEFORE going through the classifier.

[@XGrumpyProspector]

@coptechgold Thank You, I designed these for the World to enjoy and get to the real stuff! THE GOLD! My production model of this River Sluice will be improved in design and function, As for the Traps they already speak for themselves the Best clean Gold collection in one system, tried, true and proven, as the mini sluice Vid's show.

[@XGrumpyProspector]

Funny. My traps are designed in many shapes and such. Capturing all sorts & sizes of gold. The standared shape I sell is the most effective on the majority of all gold types. If someone needs specific gold captured, they send me a sample and I custom build one to match their exact situation.

[@XGrumpyProspector]

Brown dust going off the side does not concern me. - Thats waist.- [Lighter than Gold, Black Sands dont even go off there.]So all gold reasonably placed hits bottom relativaly quick and through the classifier. This prototype had a short material plate, as I used metal I had at that time. The production designs are much longer at the material input, to ensure all gold has more than required time to run its path it desires along the bottom.

[@paulmclaren9649]

Interesting set-up mate 🇦🇺

[@TecKnowFreak]

Yr right on that slow down part his big problem is that his water traps are even in any setups i seen and used they have the pit higher on the inbound side and lower on the exit side! that keeps the water flow moving! Next his traps are way to deep and he needs more different ones to have a best option to catch the gold! Each set at a diff setup for catching smaller and larger stuff!

[@ReedLukens]

It looked like a lot of the under-size went off also, so I would lengthen the slick plate to 24" before the classifier, then instead of running the under-size off, run it over a short upper sluice so it can catch the big stuff. I don't see why there is 8 to 10" between the fluid beds. I would try 4" to 6", put the fluid beds at the end of the sluice, increase the slick plate to +24" for better separation, then throw a short nugget sluice above the doors with a few drop riffles. Just thinking :-)

[@TecKnowFreak]

I dont mean to sound so piss its just i have used alot of diff setups and you keep saying in other post that you dont loose any nuggets but the majority of gold recovered these days is very fine gold the stuff you dont see! But i have to say i give you credit for trying something and not just buying! One thing i do like i made something on the same idea but with a very diff design was yr side sweep stone removing setup! Keep at it!

[@matthewmcanadabc8355]

I would like to see more test videos awesome design

[@alan30189]

Got ya. Thanks. That water must have been sooo cold!

[@XGrumpyProspector]

@Smokie1969 Yea, I will have it open for buisiness late March 2012. Still adjusting production.

[@XGrumpyProspector]

Cool, Hey sounds like you have good insite on the topic. & you possibly may be onto something. I'm half asleep, but sounds like you have something worth testing, your concept makes good sence. As I know, allot of material is going off the waist side, I'll use a for instance for the topic: If I held a Round 1.5" Rock, A lead BB sized pellet, and a Feather At 12' high in a 50 mph wind. & dropped at exact time, the lead lands within inch of vertical, the rock within 6" the feather at 45'.

[@rendanschroeder6785]

Oh also if you want to try that spot again dig your dirt from the colvert and I've heard there rich with gold

[@rendanschroeder6785]

I'm only eleven but I'm going to learn how to pan for gold and eventually buy a sluice box

[@ROGenterprises]

If you haven't already, check this guy out, I've learned a lot from him. kzbin.info/www/bejne/Y6bOl6SPm8p1sMU

[@ReedLukens]

@XGrumpyProspector - I like the idea of a micron trap but time will tell if it's needed. And it could be purchased as an add on if you're only in a micron area. Lookin Good :)

[@XGrumpyProspector]

@XGrumpyProspector Answer Part 5, just to eliminate large rocks & such running the system & allowing the finner Gold to slide undetoured along the bottom of each section, & efficiently though each trap. As for Large nuggets at the classifier, they just set right there on top and are easily seen & picked out. Hey, I greatly appreciate your input! Much welcome'd, & Thank you. I want this to be the BEST System available, so some good fine tuning is desired! If you see anything else please comment.

[@XGrumpyProspector]

Seen it, Looks very interesting. Colorado is Awsome!

[@udovdh]

Also, what about capacity? Normally I'd guess one wants to be able to put as much dirt through the sluice as one can handle. In the video obviously you wait to show the functioning, but how much dirt can this sluice handle per time unit? Also the classifier tips that are posted here loo interesting, what do you think?

[@XGrumpyProspector]

Good point though, when I get the time I will post more videos

[@electronicdawg]

I would suggest taking it out of the creek and running it then pan your tailing's to see how much heavy stuff your loosing.

[@XGrumpyProspector]

For those that have not tried one, "Fine Gold" does not exit the side fins. Many factors through physics wont allow it to do so in this design. I need not explain, as this is not a class in that department, its about getting gold as clean as physically possible. This summer I WILL personally re-demonstrate the true effectiveness of the newest version of our river sluice to prove so! The newer design simply gives more time prior to classification, which is another common sense no brainer. Other than that the classification hasn't changed much from the original prototype in this video, as it did not need improvement!

[@cameltryde]

interesting.....I like it...but...maybe three of those dips instead of two, and dirt was washing away with big rocks...maybe longer area where shovels are dumped..?

[@XGrumpyProspector]

Gold drops so quickly in a liquid - Even sinking within any material it is dropped with. Even if it lands on top of it. Perform your own test, and you will see how quickly gold hits the bottom of any hard surface almost instantainiously.

[@advenzures]

Awesome video!

[@XGrumpyProspector]

The only Gold I'm losing out of the waterflow is landing right in the traps. & I'm not going to complain about that result.

[@XGrumpyProspector]

Yea, go to the website - .grumpyprospector.

[@tmru2b]

I was wondering/noticing the same thing about the fine material shooting out the large classifier discharges...it did look like a lot was flowing out. (5:54 for example). What if there were a couple flat riffles, so to speak, that ran the width of the entry chute that had 3/16 or 1/4" or so of gap underneath that would act as a washer by lifting and separating? Material would tumble and force bigs to go over and small to go to the bottom before hitting the classifier chute? Just a thought...

[@XGrumpyProspector]

We just posted it up on May 9, 2012

[@darrylbavington726]

Could you let us know where you go Sluicing as I would setup beside you and catch the bigger nuggets that are coming out the side of your sluice box

[@tysaquaticzone]

Cool to see some nearby action. I'm often in Gunnison/Crested Butte area for field work. I work for the USGS, and sample QW from Taylor Park and Slate/Coal Ck, down to the Colorado at State Line. Maybe we'll see each other around town when I'm up that way. Keep up the fun videos.

[@XGrumpyProspector]

+Ty Blacklock Excellent! Only Problem is I now reside in Alaska, Big place with larger opportunity to get gold and improve products! Take care, or come to visit Americas greatest State.

[@mattmckersie9216]

interesting video looks like your sluice isnt getting enough flow through it though gl anyhow! :)

[@Bullriderj3]

I seen one like this used this past summer at an outting and later the owner realized he had lost a 4.5 ounce nugget back into the river. I personally would do away with the devider near your hopper.

[@lucusrose]

Is this available anywhere? The website doesn't seem to exist anymore.

[@XGrumpyProspector]

Website should be up tonight, May 8, 2012

[@Mrpocketprospecting]

I see a great design in the making but also I see no material staying behind the riffles either? It looks like its all,washing out maybe I'm missing something

[@codycalgary]

I contacted you through your website, looking forward to a response... very interesting unit!

[@BeerHits]

Another Colorado micron gold sluice, look up: sidewindersluice

[@ThePotfog]

can you make the classafier longer and go up an inch or so , also use 1/4 -1/2 inch screen like changeable if so id buy one now i just dont want to be losing the bigger stuff if its there lol

[@sounddoctorin]

nice. Maybe we can upgrade at some point

[@dwaynelowery5808]

First time seeing this and I don't know what is "under flow"?

[@XGrumpyProspector]

@jibblyjump ?? Man I seen those in use, Im sorry they dont perform to my expectation. With all due respect to the Le Trap. I want a solid well performing System, when it comes to all the work one puts into getting the Gold out of the ground. Much blood sweat and tears for some! Why not make a System that eases the pain of getting straight to the Gold once you dig, or dredge it up?

[@carolinacrusher6808]

Nice

[@sniper10666]

Didn’t see any gold though so how do we know it collected anything

[@edwingolddelirium]

very impressive

[@XGrumpyProspector]

Hilarious! This is a prototype made with heavy impact lexan. for REASONS of videoing water/Gold movement from all angles. Unless you are stating Gold is like a fishing bobber, and continually pops up to the surface?? Look closer the UnderFlow forces all material under the surface at the traps. & I'm sure it does not flaot around after that. The plate before the classifier is aluminum, so gold getting caked with oily plexiglass is impossible.

[@whitchwyman]

I want one.

[@MrWildlife168]

Will it work as a dredge sluice?

[@alan30189]

You seem to lose a lot of fine material at the start of that classifier. Its obvious. Maybe dump it in more slowly.

[@XGrumpyProspector]

The website is "grumpyprospector" with w's & dot com in the appropriate places

[@XGrumpyProspector]

Nope, anything that does not fit through the classifier & is real heavy like Gold, will set right on the classifier. I dont (intensionally) show how or why my designs do this in my videos. But the larger nuggets stick right on the classifier and are easily seen & picked off.

[@electronicdawg]

Your loosing fine gold, as it will float in fast water. I have been mining for over 40 years and never seen a contraption quite like that. Also isn't plexiglass made from OIL and put oily residue on the gold that will also make it float? Go through your tailing and see how much you lost, I mean beside the gold getting ejected from the classifier. Just my 2 cents. Proven methods are always the best methods.

[@goldfeverusa]

now how much is something like this ganna cost?

[@TheOldkid888]

Thumbs up! Al

[@77rockcrawler]

wished you panned it out