Ceramic - Pottery Dictionary

by Susan Mussi

BALL MILL

ca: MOLÍ DE BOLES

es: MOLINO DE BOLAS

Ball Mill is used for finely grinding and mixing colors with clay and pigments with glazes. It is a steel horizontal drum supported by legs with a door at the side and a small motor that rotates it at one end. The inside is lined with a strong material and contains loose pebbles or manufactured balls, so when the mill turns the pebbles fall to the bottom of the curve and grind down the materials. The cascading effect reduces the materials to a fine powder and mixes them. Different materials are used for grinding, including ceramic balls, pebbles and flint.