A rock pulverizer device based on a superconducting linear motor. The
superconducting electromagnetic rock pulverizer accelerates a projectile
via a superconducting linear motor and directs the projectile at high
speed toward a rock structure that is to be pulverized by collision of
the speeding projectile with the rock structure. The rock pulverizer is
comprised of a trapped field superconducting secondary magnet mounted on
a movable car following a track, a wire wound series of primary magnets
mounted on the track, and the complete magnet/track system mounted on a
vehicle used for movement of the pulverizer through a mine as well as for
momentum transfer during launch of the rock breaking projectile.