Feb 28, 2021 When it comes to Crushing or Pulverizing Rock Samples nothing works better than The Cobra Crusher. Convenient and Mobile than a Jaw Crusher. Our Cobra Crusher turns your Angle Grinder into a Mini Rock Crusher Plant with just a squeeze of the trigger. Gold processing equipment used in portable gold ore crushers are available mobile.The CrazyCrusher is portable and very affordable! While gold is the most sought after metal, there are many other valuable ores, such as Silver ores or rare earth elements! Unless you know what to look for, you could pass it up! The Patented Crazycrusher is not just a crusher to crush ore samples with! Although that is the original design, it.