(See video link below) Reduce your black sand concentrates quickly and efficiently while retaining even fine gold! We tested it recently and were very impressed by its excellent fine gold retention and speed.

After 3 years of development and over 25 prototypes, Keene Engineering has developed the perfect black sand concentrator riffle. It features the first Hungarian riffle molded directly into a rubber mat! Keene took that development and built it into a portable gold concentrator measuring 44” x 8” added a built in header box, plumbed it with an adjustable flow valve to meter water flow and added a water valve for clean up. Concentrator also comes equipped with adjustable brackets, two 5 gallon buckets to recirculate water and an 1100 GPH pump.

Note: this is a new item and modifications (improvements) to design and shipping lead time may change without notice.

Model #KSCR

Click to Watch video of concentrator in use on youtube.com