ROOT Group RTSM-BJ/BJD series Constitutes pin type agitator bead mill with static sieve characteristics is a novel type bead mill designed according to actual production situations, modified from traditional pin type agitator bead mill and granted nanoscale grinding fineness. With upgraded agitator pin material, optimized arrangement of the pins and filtering area of the sieve, our innovative type machine performs a much better grinding efficiency and production capacity than that of the traditional ones, making it more suitable for nanoscale grinding in industrial mass production.