. More Magnetite Recovery in Coal Washing by High Gradient ... The Carousel High Gradient Magnetic Separator with its power supply at a mining company research laboratory. Feed and wash pipes enter the Carousel at the top. ... The current required to produce this field is 000 amperes at 00.0 volts. The field values were measured with a transverse probe used on a Bell gauss- meter. ... TABLE 0 The Effect of ... More 