Gold Spiral Wheel Concentrators provide Excellent Fine Gold Recovery from Black Sand concentrates.Spiral Wheel Gold Concentrators make panning automatic - they can recover all sizes of gold -- from micron and flour gold to coarse nuggets. Some models like the Gold Magic can even work Wet AND Dry. Browse our collection of spiral gold wheels and automatic gold panning cleanup tools below. Including: the famous BLUE BOWL CONCENTRATOR, and Gold Miner Spiral Wheel Why Use a Gold Spiral Wheel? Gold Mining Equipment Shows always have the spiral wheel concentrators featured up front and on display. How often have you watched with amazement as the heavy black sand laden gold concentrates are dumped into the wheel and just seconds later the gold travels up the spirals and drops neatly into the center cup or pan? For those of you that dredge, sluice, use a highbanker or just process a lot of black sand, the choices for concentrate clean-up are limited to hand panning, using a micro-sluice, a centrifugal style blue bowl, or a spiral concentrating wheel.
SCROLL DOWN TO VIEW OUR SPIRAL WHEEL CONCENTRATORSAfter hand panning you will always end up with black sand still in the gold. The micro-sluices and small blue bowls work well but are very slow and you will probably still end up with black sand in your gold. But with a good spiral wheel concentrator properly set up you can process 50 to 150 lbs. of black sand concentrates an hour with very little effort and have clean gold ready to display or sell. So, if you mine for gold and do not want to sit around for backbreaking hours panning and then picking out the black sand by hand you need to consider an automatic spiral wheel gold concentrator. To successfully get clean gold from a spiral wheel two things are necessary, a well designed, high quality wheel, and the knowledge to operate it properly. We have been asked many times if black sand concentrator wheels are effective. My answer is always, "it is an excellent wheel but is limited by the skill of the operator." If you do not understand the principles of gravity separation, the importance of classification, and the proper operation of the wheel, your results will probably be disappointing. Take the time to practice and experiment. SCROLL DOWN TO VIEW OUR SPIRAL WHEEL CONCENTRATORSFINE GOLD SEPARATION TIP: The importance of classifying your material: Black sand concentrates are a combination of heavy minerals usually with magnetic iron being the main mineral. These dense minerals have a specific gravity in the 5 to 6 range. Gold has a specific gravity of 15 to 19.3 depending on its purity. The black sands will weigh 1/4 to 1/3 as much as the gold. A cubic foot of black sand will weigh about 225 lbs. Or 26.7 lbs. per gallon. These heavy black sands present the major problem in fine gold recovery for recreational gold miners. Gold, with a specific gravity of 15 to 19.3, and black sands at 5 to 6, when properly screened down to approximately the same size, will allow the gold to be easily separated using a good spiral wheel concentrator. Without proper screening (classification with a sieve), particles many times the size of the gold will climb the spirals and disturb the concentrating action of the water and gravity. As the gold climbs up the spirals this disturbance can cause small grains of black sand, along with the large pieces, to follow the gold up to the center tube and be deposited in the pan. The best rule of thumb to follow is: "The finer the gold, the finer you want to screen your concentrates." Run the material in several different batches of finer and finer material. With proper screening and wheel operation it is possible to recover microscopic (micron) gold down to almost 500 mesh with a high quality gold spiral wheel. |
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