S206 spherical sand mixer is a new type of high-efficiency sand mixer. It is characterized by high sand mixing efficiency and short sand mixing period. It is named because its sand mixing chamber is designed as a sphere. Its working mechanism is symmetrically installed by two sand mixing blades. On the crosshead, when the sand is mixed, the transmission drives the spindle to rotate at a high speed, and the two blades with special helix angles are rotated, the sand is turned up by the vortex motion, and the upper hemisphere is fixed to reflect the sand, so that the sand is repeatedly circulated. The curing agent and the resin sand binder are quickly mixed, and the discharge gate located below the sphere releases the molding sand. The spindle of the sand mixer has high speed, the blade throws the material to spread, and the convection friction and the tumbling effect are very strong, so the sand mixing effect is good and the efficiency is high.