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Gold Hog

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  1. The link really explains it, we are seeking full-time working ops for the testing and reporting. That also includes dredges. There are quite a few and we already work with many, not just in North America but all around the world. (Yes, one of the ops in that show might be running it.) We have already done all the initial testing, including some field testing, now just looking for a handful of ops that are good at data recording, which all are not. The approximate GPH , per inch and pitch data are some of the key factors we are seeking at this point, as well as plants in N. America. Doc
  2. Figured I'd share this here as well. Due to sizing limitations and other factors that made it a bit complex, many ops could not use our standard bare exchange mats. So... after a LONG and tedious process, we are finally releasing out miner's moss replace matting. It is designed for large commercial operations and large dredges, replacing current miner's moss. It runs under larger expanded metal. (4 pound, etc) We have a few slots left for a few commercial ops to do some field testing and data recording. Please note... that the ops must be full-time, large ops with the ability to do some quality testing and data recording. We set up a page for any inquires and they are welcome. http://www.goldhog.com/cop.htm Thanks Doc
  3. Had some friends drop by from TN and asked them to test some of our lower grounds. We have been working upper areas and just haven't had the time to do testing down lower. They were more than happy to help. Fun trip, nice color, and their homemade dredge did well.
  4. We sell a ton of moss every year as well, 1000's and 1000's of feet. It varies on the op and what people are capable of doing as well. Commercial ops have to grasp the understanding and design of the matting too. They really need to divide their sluices as the mat really needs to be no wider than than 18". Some just can't grasp that concept. Also, a lot depends on your area and the ground you're running. We sell to 35 countries and you quickly realize that EVERY plant has variables you really need to study. A good example is below. Great guys from the U.S. running in Africa that REALLY know how to do extensive testing. (Over 200 controlled test over the past year.) Here's what they passed along. Pretty good info. Their problem was very high viscosity.
  5. Ryan a customer in BC made his own highbanker. GREAT design. Had some issues with water volume, pitch, etc. He played with the config and got it dialed in. Did a great job on the video. Fun... good gold.
  6. We run 1/4" perf metal about 1" over fully cut down RiverHog mat. It really depends on the sluice, and how the flare enters the sluice. i.e. Is it level with the sluice or is there a drop off. If you click this link, the video should start at a point where we are dredging. You'll see the upper portion. http://youtu.be/kap1ajJjYWM?t=11m19s
  7. Hi Derek, The first thing I would do is just replace the moss and test run it. If you like the way it performs, keep it that way. That's cheap and quick. You can do loss testing once you get it running if you have some extra hands around. Doc
  8. Gold Hog

    Nice Cold January Gold

    Yep... GA That was earlier this week. It's colder now. 9 degrees tonight. Drain the engines and hoses... they're going to freeze. Here's one more. Mats still in the dredge. Good area at least.
  9. One of our crews has "guts"... 19 in the morning, snow falling... heck... let's dive. Good day of running and some pretty gold.
  10. Gold Hog

    Why Are Dredge Sluices So Short?

    Most people should NOT use a bolt through the nozzle. Proper handling of material is right way to work a dredge. (When training new dredgers I do use one and we call it "training wheels".) There are times that one is needed, however. We often hit areas with AMAZINGLY tough hard pack that is like cement. You can NOT tend the nozzle properly. We are running a 5" (limited by regs) and we run the suction VERY high to eat away at this hard pack. By the time you see the large rocks, it's often too late, swoosh they are gone. When working this type of area we weld a bar IN FRONT of our nozzle. About 1/2" It does not restrict the flow, stops huge rocks from going in, and helps us with digging into hard pack. We can set this nozzle right on the hard pack shelf and allow the suction to eat away at material and still have lots of water flow. (Think about putting your hand on a vacuum tube, it stops all the air flow.) You can see the bar in this short video. This wasn't CRAZY hardpack, but pretty tough stuff.. http://www.facebook.com/photo.php?v=400016633445018&set=vb.238066632914117
  11. Gold Hog

    Posting Rules, Terms of Service, etc

    I did notice that I could not find a way to embed a youtube video on a post. Am I missing something? Normally it's a BB code button. Thanks Doc
  12. The great thing about prospecting and mining is that you keep learning no matter how old you get. Play around and experiment as each area is different and each piece of equipment is different. We get a LOT of good feed back from customers playing and testing. We have a commercial milling op running our UR mat BACKWARDS.... They crush very fine, and have a bunch of heavy black sand. They found that running it backwards works for them, as if hyper-fluidizes the mat. We did an initial test with it that way and were pretty pleased. Running almost all black sand. We're now testing it for black beach sands which are tough. Here's a photo of the gold. It ran about 97% which is not bad for the first run. Still have to play with settings.
  13. Gold Hog

    Why Are Dredge Sluices So Short?

    I agree with the no bolt option. However, if you do put a "bar" or bolt across your nozzle, don't put it through it. Weld it in front of the nozzle about 1/4" to 1/2" away from the front. If you put a bolt THROUGH the nozzle, you create a suction notch / groove where larger rocks get stuck. Have it out in front, it classifies without clogging. But... most dredgers DON'T use a bolt. It doubles the clearing time with your hands. You get the hang of what rocks to pull and which ones not to pull. On the sluice length... Most standard dredges use larger aggressive riffles. Therefore a long sluice is not needed. It's a flow interruption system with voids / low pressure areas to hide gold. However, they can fill up with rocks and start the battle of MASS... not just specific density too. (Since the majority of dredges do not classify.) We use mostly exchange matting / surfaces and very high water speed / more pitch on ours. So, our sluices are often longer than most. Most dredges will have water that is 2-4" deep, ours runs about 1" So... it is a different config. It's a bit of overkill but very efficient. Here's our fun 5" "redneck build" for this year. We do one of these projects each year.
  14. Biased??? How dare you. Thanks for the kind words mike. One thing I have built our business on is integrity. We turn down customers every day and send them towards a product that might work better for them, if it will. A happy customer tells 2 people... a disappointed one tells 20.
  15. First... glad to see this forum opened up. We will be advertising in the magazine and looking forward to helping when possible. Now to the question... This answer could go on forever. A lot of your bedding / matting choice will depend on your configuration, equipment, water volume, sediment rates, etc. If you have a long enough sluice system, you should consider exposing your slurry / gold to various surfaces, velocities, capture zones, etc. Many of the larger industrial operations now do this, or have done this for years. Varying the exposure throughout the run, and treating it to several processes. If you want to describe your system,I'll be happy make recommendations . Doc