Recent content by Rickrofe

Prospecting Australia

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  1. Rickrofe

    Impact Mill Build

    The shaft is 4140 stainless, 25mm. The machine does not use a punch plate, material that is over size is classified using a hydro-cyclone setup. Over size is milled again. This helps prevent over grinding. Cheers Rick
  2. Rickrofe

    Impact Mill Build

    The video is just a demo, however I take your point. Next time Ill demo with a full hooper. I was crushing quartz mixed with iron stone... Cheers Rick
  3. Rickrofe

    Rock Crusher for sale

    Weight is 130 kg. I can also fit larger diameter wheels. However, the weight may be a problem for you. I manufacture the machines, and I am happy to make something to order if required... cheers Rick
  4. Rickrofe

    Rock Crusher for sale

    Cost : $3200.00 Includes shipping Where are you located...
  5. Rickrofe

    Rock Crusher for sale

    300 KG per hour 15 HP petrol motor Only used a couple of times Easy low cost maintenance Contact me for more details.... https://youtu.be/6WIw6L1InH4
  6. Rickrofe

    Impact Mill Build

    Finished making final changes and finally got it running nicely. Its for sale if anyone is interested. https://youtu.be/6WIw6L1InH4
  7. Rickrofe

    Blue Bowl for sale

    Blue Bowl includes frame, flood light with height and level adjuster. Electric pump included. Waste water is further processed to capture really fine flour gold. Works like a charm; $250.00. can pickup (Adelaide) or post any where in Australia. Contact Rick on XXXXXXXX...
  8. Rickrofe

    Impact Mill Build

    Hi The design has since gone through three iterations and the latest is currently being Power Coated. I'll check back with you in a week or so with a video and additional detail... Cheers Rick
  9. Rickrofe

    GPX 5000 for sale

    Any body interested in buying a GPX 5000? It's near new, it has been out three times since I purchased it. Still under warranty plenty of extras.. PM me if interested Cheers Rick
  10. Rickrofe

    Gold Bearing Oar

    Lots of resources to follow up here, thanks for taking the time to respond....
  11. Rickrofe

    Gold Bearing Oar

    Hi Puddler, thanks for the advice, as always appreciated....
  12. Rickrofe

    Gold Bearing Oar

    Thanks to all those that pointed out the incorrect spelling of ore (oar). I have applied to undertake an 'ore' spelling course next week, I think it will be a worthwhile qualification for a budding prospector who is ore-inspired.... Cheers Rick
  13. Rickrofe

    Gold Bearing Oar

    I have been prospecting a patch of the Adelaide Hills and came across a quartz reef that is white with dark blue transparent colour in it. Then I took 12 inches of the top of the protruding part of the reef and found lots of mineral decomposition and dark reddish staining. I assumed it was...
  14. Rickrofe

    Impact Mill Build

    Hi As I understand it the optimal rpm for a crusher of this size is about 1400. The pullies are 1:1.22 which gives us a rotation of between 1420 - 1470 rpm; which seems to be working well. We have had the mill up and running now for about a week, it is running a .75 horse power motor at 1400...
  15. Rickrofe

    Jupiter Creek / Echunga SA books and maps

    Hi Rick I also live in Adelaide and have done a lot of research on Jupiter Creek, Echunga and lots of other sites. In my opinion the best research resources on this subject can be found on the DMITRE website located at http://www.minerals.dmitre.sa.gov.au . Once you have browsed to the site...
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