Nov 05, 2021 Products. AS a leading global manufacturer of crushing and milling equipment, we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete stone crushing plant. Barite Roller Mill. Our Roller Mills are highly efficient in the grinding of Barite. Designed to provide completely automatic operation, the Williams Roller Mill includes micrometer control of the finished product. Learn more about how Roller Mills from Williams Patent Crusher can contribute to your barite grinding project.