A Vibratory Disk Mill (also commonly known as a Vibratory Cup Mill or Shatterbox) is a high-speed pulverizer designed to reduce hard, brittle, or fibrous materials to analytical fineness—typically sub-75 microns—in less than two minutes.

The mill uses a "puck and ring" system housed inside a heavy, reinforced grinding set (the "cup"). (1) Action: The machine utilizes a powerful motor to create high-frequency horizontal oscillations. This causes the internal grinding elements (a solid puck and often a hollow ring) to accelerate and strike the walls of the jar. (2) Force: The material is pulverized through a combination of intense impact and extreme pressure/friction as the puck and ring slide and collide. (3) Speed: Because the grinding elements are so heavy relative to the sample size, the energy density is incredibly high.

References:

P. Plescia, et al., Analysis of friction coefficients in a vibrating cup mill (ring mill) during grinding, Tribology International, 2017, 114, 458-468

M. Truee, et al., Measurement and evaluation of the grinding bodies’ motions in a vibratory disc mill filled with viscous fluids, Advanced Powder Technology, 2020, 31, 4376-4389