(1) One used StokesOscillating Granulator. Stainless steel contact parts, hopper opening dimensions are 13-3/4" X 16-1/4", screen size 15" X 20" and the rotor diameter is 5-3/16" with 6 rotor bars, oscillations of rotor per minute 134 with a production capacity of 10 to 50 lbs./ minute.