LNMN-120 type agate mortar type laboratory mill a fine powder, an agate mortar mill -120 type agate mill working principle, the particle size is by grinding a coarser solid particles, placed in an agate mortar and ; 2, agate mortar underside is a hemispherical surface in the strict sense, hard, wear-resistant, very smooth agate mortar from slow speed rotation gear motor drive conducted; 3, agate pestle of the head is a strict sense hemispherical on the centerline and mortar pestle intersects the centerline into a more appropriate oblique angle. Stretching within pestle mortar pestle set within a compression spring, the head under the action of the spring and mortar firmly attached to the bottom together. Pestle was fast speed gear motor drive, do the rotating cone cone similar trajectory. 4, mortar and pestle, this movement of each of the coarse particles form an ingenious rolling mill. 5, due to the grinding movement of an agate mortar and pestle formed, solid particles of abrasive opportunities are equal, powder particle size is very uniform. Polishing time is set according to need, and automated control. After polishing by setting a reasonable period of time, coarse particles are ground fine powder particles become very fine, the particle size can reach micron, and some can achieve nanometer. Second, the application areas agate mortar mill grinder -120 agate type 1 powder superhard materials, such as: diamond grinding wheel abrasive powder. 2, the electronic powder, for example: the semiconductor powder, polycrystalline silicon powder. 3, resin powder. 4, food powder, such as: coffee powder. 5, medicine powder. 6, chemical powder, for example: iodine powder. Third, part of the fuselage, mortar drive, agate mortar, agate pestle, pestle drive and move the assembly, control box