E-9188D ultrasonic electric spark mould polisher is improved and developed on the basis of original E-9188 B polisher. This machine has not only kept the advantages of heavy power and high efficiency of original E - 9188 B type polisher, but also increases the functions of mould face skinwrinkle treatment, tool resonance frequency autotracks, the stepless regulation of output power, and the like. With new design, good function, convenient operation, and visible display, it is actually a beautiful star in the mould polishing trade. Characteristics: 1 . The polishing efficiency is ten times higher than by hand. 2 . It can finish the whole polishing process from shaping to the lens face. 3 . It is not limited by the complicated work, shape and hardness of material. 4 . The tool head can be made of various materials, and the user can also make it. 5 . As for kinwrinkle treatment of surface of mold, degree of finish can be adjusted stepless. 6 . Can be suitable for the unprofessional worker to operate. 7 . The frequency autotracking technology can guarantee the tool be in the best resonance state. The technical parameter: 1 . Application scope: Polishing, from the shaping to lens face, of various complicated type moulds cavities, narrow groove, narrow slot, blind hole, plane and different kinds of hard alloys. 2 . Polished material: Various kinds of metal, hard alloy, glass, malachite and agate, etc.. 3 . The roughness of processing surface: 4 . Polishing medium: Artificial diamond abrasive pastes or diamond abrasive pastes. 5 . Operating frequency: 26-31KHz. 6 . Power: 220 V ±10% 50 HZ 7 . Max consumption: 350W 8 . Overall dimension: 325 * 135* 300mm 9 . Weight: 15Kg