Electromagnetic sucker is a kind of electromagnetic principle, through the internal coil power generated by magnetic, through the magnetic panel, the contact surface in the workpiece surface tightly sucked through the coil power, magnetic disengagement to achieve demagnetization, remove the principle of the workpiece And the production of a machine tool accessories. The main applications are: grinder, FYMC series of electromagnetic grinder, gantry milling machine, gantry planer and other iron parts of the workpiece when fixed.