Description Small 911RP4 Gold Shaker Table. The RP4 Gold shaker table (911RP4) is the most widely used and successful gravity shaking concentrating table.. It is used by hobbyist, laboratories, small and large mining operations. RP4 separates heavy mineral and gemstone concentrate. The RP4 uses a unique reverse polarity of rare earth magnets which will cause the magnetite to rise and be ...