Machines | Gold Mining Trommel Wash Plant for Placer Mining
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Gold Trommel http://www.savonaequipment.com/en/equipment/trommels-e41572 New Savona Equipment Gold Recovery Trommel http://www.savonaequipment.com/en/savona-equipment-3-ft-x-12-ft-trommel-p85743 Placer Mining Equipment for Gold Recovery http://www.savonaequipment.com/en/equipment/placer-mining-equipment-e53774 Sluice Boxes for Gold Recovery http://www.savonaequipment.com/en/equipment/placer-mining-equipment/sluice-boxes-e41571
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how price
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Those trommels have crevices where the screen connects to the supports and that could hold an ounce of gold. These trommels have to be designed so there's no little spaces where a half ounce of gold can get stuck. That gold is going to drop into the nearest crevice it can lodge into.
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People just don't know how easy it is to build a trommel. Just have a welder roll a thick gauge sheetmetal piece into a circle and weld it. Couple hundred bucks. Then grab 2 trailer axles and tires (400 bucks). Attach a huge pulley to one of the wheels and grab a little motor with a pulley on it for a drive mechanism. Have a piece of angle iron rolled into a circle and attach it to the pipe, so you can mount a caster wheel on the frame to keep the pipe from sliding while the trommel spins. Lastly, cut out the sections where you want your material to drop thru and bolt on 1/2 inch, 1/4 inch, or 1/8 inch mesh so the small material falls thru. Engineer your own for about 1500 bucks and it's easily fixable, you don't have to call the dealer and have them save the day by shipping your trommel part out the next day. Very easy build if you want a single stage classification trommel. If you want it to classify into different sizes, well you have to get the welder to roll different sheetmetal into tubes, and then you have to roll angle iron into circles so you can mount one tube inside the next; and cut out each piece of tubing and put your own choice of classification screens in them. If you can grasp welding with a wire feed welder or stick welder, you can do most of the little welds yourself. This wouldn't be precision welding. just enough to bond the metal to withstand a hundred pounds of force.