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Rock crusher pulverizer, Drill powered 8” gold ore processing compact impact mil

$ 303.07

Availability: 100 in stock
  • Restocking Fee: No
  • Item must be returned within: 30 Days
  • Refund will be given as: Money Back
  • Time Period Manufactured: 1930-Now
  • Country/Region of Manufacture: United States
  • Return shipping will be paid by: Buyer
  • Condition: New
  • All returns accepted: Returns Accepted
  • Modified Item: No

    Description

    8” Drill powered impact mill is perfect for sampling or small production in mining applications.  1.5” inlet port, 1.5” outlet port. Perfect size for packing in to remote areas to find your next gold vein. Also when powered by a cordless hammer drill, the drill can pull double duty to drill out cliff face or boulders to break out samples or set charges using a masonry bit.
    Patent pending design is the latest and greatest in pulverizer technology.  This design is far superior to old design in the following ways:
    A. Far far less likely to have the screen plug up
    B. Screen life is at least 10 times that of competitors
    C. Constant production rate means a more consistent product with very little kickback through the inlet port
    D. When crushing quartz or similar gold producing ore, crusher produces 70% passing a 20 screen on first pass when drill powered at 800-1000 rpm, which is the perfect consistency for field sampling when using a pan or sluice. Turning the rock and gold into talcum powder will only make the gold float out of your pan or sluice as it gets caught in the water’s surface tension. Even using jet dry to break this surface tension, very fine flour gold is difficult to capture using a pan or field sluice. This crusher produces an optimum consistency. Not to big, not to small.
    Competitor’s sampling crushers use inlet port as outlet port, and are not continuous production.
    E. Precut 1/8” shaft keyway makes the unit easily transformable to gas or electric motor power by simply installing a belt pulley or Lovejoy shaft coupler, and mounting to a platform. Using higher rpm drive will increase the percent passing a 20 screen up to over 90% passing when crushing at 3000 rpm. See photos in the gas powered 10” unit that I sell to see this consistency. This unit is durable enough to be used for small production in the beginning stages of proving up a mine. Most likely, more efficient methods of capturing fine gold would be incorporated in a functional mine.
    Geological convention accepts that gold extruded through rock after the rock was already formed, therefore, where the rock and the gold are bonded is the natural fracture point when crushing. So typically the material not passing the 20 screen would be less likely to have gold in it, as it is the hardest part of the rock. Every sample can have it’s own character though, so screening and recrushing the oversized material then panning would determine ultimate processing techniques. Typically a 1” diameter rock passes through the crusher almost instantaneously, or usually in under a second. It is best to add water as rock is added to get the best results, and to have a dustless production, having ore sitting in water as it is scooped in is adequate. Machine may also be run dry as well. Pitted pipe used to have the best crush surface.
    Legs and drill not included, but legs are easily made from 1/2” electrical conduit available at most hardware stores.  These fit and lock into the leg mounts on the crusher. Hardened chain hammer ends for long life, 70 ksi hardness. Hardened screen used as well. All parts available at our store, coming soon.
    One of these crushers, a pan and a rock hammer belongs under the seat of every serious prospector’s truck. A salesman always sells, and a prospector always probes.