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Sunday, January 11 2015

Desert FoxIf you're looking for a proven fine gold recovery tool that has been on the market for decades, consider the Desert Fox Spiral Gold Panning Machine. It's easy to use, and recently Kevin Hoagland, Executive Director of Development for the Gold Prospectors Association of America (GPAA) conducted a field test review which was published on pages 14-17 of the January/February 2015 issue of Gold Prospectors Magazine. Here's an excerpt of Kevin's findings and you can also click on the image at the end of this post to download a complete copy of the field test review (4-page .pdf).

"... The Desert Fox ships in an Action Packer case that is the storage, transport, and water container unit. It provides excellent protection for the Fox while giving you a true compact recirculating unit that can be transported easily. Unpacking the container was simple and for those of us that spend little time looking at the way something comes out of a container, the manufacturer has included a photo in the manual to show you how to repack the unit so it's back to being travel-ready in just a few seconds. In the container you will find:

  • A-frame with variable speed drive motor connected as one unit
  • 7 lead 12.5 inch double wall spiral recovery wheel
  • Adjustable water spray bar
  • Tailings catch tray
  • 12-volt 750 GPH pump and flow hose from pump to spray bar
  • Instructions
  • Recovery cup
  • Nylon stocking for the pump
  • Small bag of practice sand with flecks of real gold.

Setup takes just a few moments. The wheel frame is a single point A-frame that sits perfectly in place in the container and allows you a stable, easy-to-set-up base for the spiral unit. The A-frame construction also allows the unit to be set up directly in a stream. Stand the A-frame in the container, lift the drive unit to a beginning angle, slide the double-wall wheel into the slot on the drive motor, attach the spray bar, fill with water, hook up to a 12-volt power supply (not included), and after a couple of fine tuning adjustments, the Desert Fox is ready to start running your concentrates. Total time from cased to running is about two minutes!

The A-frame mounted drive motor allows you to easily make small adjustments to the angle of the wheel. This ease-of-use factor can become critical when running materials that require more precision. Water flow is controlled by a single-point knob on the spray bar assembly, and the speed control is located on the back of the unit. These 3 adjustments are all you need to ensure efficient gold recovery. Before first use, be sure to clean with a good quality dish washing soap to remove all the manufacturing oils (mold-release agents from the plastic parts). Do NOT use a citrus-scented soap because the scent is derived from oils, which is exactly what you are trying to remove. Use hot soapy water and a non-abrasive pad.

Spiral panners work in reverse of traditional hand panning. Instead of gravity separating gold from concentrates with the heavies sinking to the bottom of a pan, a spiral machine uses speed, water, and the angle of the spiral wheel to keep lighter material in the bottom of the wheel, while the heavier black sand and gold is brought up the leads. When set correctly, the sands drop off at the last moment and only gold is moved through the center of the unit and recovered in the cup.

Desert Fox Spiral Gold Panning MachineI recommend classifying your dirt to a minimum of .25 inch to 1/8 inch mesh. Once classified and prepared to run, feed the material slowly into the bottom of the wheel. I've found it best to use a tablespoon. Increase the feed rate after all necessary adjustments are made.

Starting with the water first, find the lowest water pressure that will clean the light material from the leads as it climbs up the pan, adjust the angle and speed as needed so the heavy sands drop off at the right spot and you're ready to start processing your concentrates. After completing the basic setup, I adjusted the speed to keep the unit tuned in to variations in the types of material I ran. There are two models of the Desert Fox— a constant speed ($339) and a variable speed ($359). Since the difference in price is just $20, I highly recommend the variable speed model.

The Desert Fox is a straight-forward and simple spiral wheel system that recovers gold efficiently, and has been manufactured by Camel Mining since 1969. It is compact, weighs about 10 pounds, and is ideal for carrying into the field. Gold recovery is exceptional and the learning curve is short..."

Click here to learn more about the Desert Fox Spiral Panner on this website.  Click image to download .pdf of field test review.

Posted by: Denise AT 10:38 pm   |  Permalink   |  0 Comments  |  Email
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