Increase the powerful magnet magnetic way magnet manufacturer
The short answer way we can restore the magnets for magnetic, to the state of saturation magnetization.
Magnetic circuit design method of the magnetic flux gathering in yoke iron to produce strong suction.
Can adopt the method of concentrated magnetic field lines, suck on a piece of magnetic iron plate on the magnet, the magnet manufacturers on the edge of the magnetic iron plate edges and produces higher magnetic fields.
Magnetic force is not enough also need not hair, can add a iron in magnet another wall to enhance magnetic, magnet is used in the factory at this moment the magnet surface.