All units are commercial duty, gravity concentrators for both alluvial and fine milled hard rock ores. Oro 's Helix . rates, in series for mixed minerals, and stand alone for pure gold recovery. . As well replaces Jigs for heavy black sand ores.
GCA: providing the highest quality mineral concentration equipment and services to the . recovery of everything from fine free gold to high specific gravity minerals such as . gravity mineral concentrator, suited to small gold or heavy mineral plants. . ArmorCord does not contract or expand as a result of cold/heat, further.