SpectroMill® Ball Pestle Impact Grinders operate on the principle of propelling one or more ball pestles together with a sample substance from one end of a SpectroVia®l to the opposite end in a rotary "figure-8" path of travel configuration. The motion is energetic and rapid.

SpectroMill® machines incorporate "well-balanced" engineering that permits high degrees of stability for counter top operation. A programmable digital electronic timer controls processing time with a LED display and audible alarm indicating cycle completion.