RP-4 mineral concentrating tables are factory designed with a raised riffle for maximum recovery of micron sized gold and platinum metals. RP-4 gravity concentration tables weigh 60 lbs. and require about 8 to 14 gallons of water per minute. Table comes equipped with a 1/2 HP motor and uses 8.6 amps. "1/3 HP motor is optional at 6.8 amps.
Building a Micron Gold Recovery Device - TreasureNet
Jun 18, 2010· Building a Micron Gold Recovery Device I have read a number of post on Micron Gold recovery.I have heard about the cleangold products and others using magnets to trap blacksand which in turn traps fine gold.