Mechanical mixing of a clay slurry. Blungers of all different types are available. Some are simply a high-speed propeller on a shaft, others employ complex arrangements of paddles and container shapes. Clay slurries require the application of considerable amounts of energy to achieve a slip in which water has penetrated well between all particles.
Simple propeller mixer with mount and switch (this 1/3 hp mixer can handle up to 10 gallons).
The powder blender for making porcelain bodies at Plainsman Clays
All of the equipment has been washed in preparation for a porcelain run. This mixer feeds a set of hoppers on the other side of the wall, they in turn feed the pugmill.