The LHH High speed mixer has a conical mixing cavity, which is equipped with multi-blade rotor, its rotation speed adjustable by frequency converter. The rotors produce centrifugal force, push the material to the mixing chamber wall, and because of the special design of the internal rotor blades, material close chamber wall move up, the material in the center move down. It forced the material friction, grinding, extrusion, resulting in rapid dispersion of material particles, mixing. It is applicable to chemical, pesticide, battery materials, food and other industries of fine mixing, decentralized operations.