Spiral Concentrator Outotec
Like most concentrating devices that utilize physical separation principles, the spiral works best on a closely sized feed, though in select cases the unit has some tolerance for wide size ranges. In general, a coarse size limit would be about 1 mm (20 mesh) and a fine limit of approximately 45#181;m (325 mesh). For best performance, feed should be relatively free of slimes as a high slime