KRHD- homogeneous emulsifier of the inside and outside circle is the emulsifying equipment of new generation adopting today's international advanced technology. Its greatest feature is the homogenizer at the bottom can be movable up and down. When rotor in the highest position, materials would be inhaled from the top, and be spurted all around after the high-speed cut to form the inside cycle. When the homogenizer rotor in the lowest position, materials would be inhaled from the top, to form the outside cycle along with the stator tangent direction after the high-speed cut, and at the same time to dump the product inside. With the sealing system of self-cooling system, the homogenizer can withstand a longer time for high-speed operation, suitable for production of high-grade (oil-water) and the production of cosmetics with powdery materials. Two kinds of control forms, common button control and man-machine interface control.