Lowspeed mixing blades and highspeed disperser rotate on thrie own axis as they travel aroud the mix bowl interior ,in order to fully mix and disperese two or more materials together well. smaller clearance between blades and wall, and special design for the blades would gain the best mixing resultï¼smallar kneading clearances between quartertwist blades, to wall an to bottom, and special designs in dispersing blades.