Abstract: A magnetic suspension device is provided, including: a base, including at least two first magnetic action units arranged in interval and corresponding to each other; and a suspension member, including at least two second magnetic action units, the at least two second magnetic action units magnetically interact with the at least two first magnetic action units so that the suspension member is suspended between the at least two first magnetic units.

Abstract: A polishing equipment for a spherical body is provided, including: a base, including a tubular member configure to support the spherical body to be polished; a fluid pressurizing unit, being in communication with an interior of the tubular member and configure for fluid to flow into the interior of the tubular member to push the spherical body; a grinding member, configured to be relatively movable with respect to the tubular member, and configured for grinding an outer surface of the spherical body and rotating the spherical body by friction.