Laboratory Sample Pulverizers
Finer is better, and under 270 mesh (53 um) is generally fine enough. The basic parts of this vibratory type sample pulverising machine are: steel grinding bowl, ring and puck. The ring and puck rotates inside the approximately 8" diameter cage at a speed around 400 RPM or fast enough to crush and pulverize rocks of up to ½" down to 400 mesh.