Abstract: A lightweight soil classifier consisting of a singular motor, a fully articulated flexible Vierendeel frame motor mount platform and conical basket lid weldment for the self-aligning and centering of a rotating shaft through a cylindrical screened classifier basket containing classified media, with an impervious conical bottom and a cylindrical bearing post incorporating a conduit, a classifier drive shaft with a semi-rigid coupling to the motor and a pumping screw extending through the bearing post conduit and submerged bearing surfaces to develop fluid dynamic bearing films of fine soils and liquid vehicle, fitted with an inverted cup-shaped classifier head consisting of outwardly projecting spirally arrayed classifier pins located within the confines of the classifier basket.

Abstract: A lightweight soil classifier consisting of a singular motor, a fully articulated flexible Vierendeel frame motor mount platform and conical basket lid weldment for the self-aligning and centering of a rotating shaft through a cylindrical screened classifier basket containing classified media, with an impervious conical bottom and a cylindrical bearing post incorporating a conduit, a classifier drive shaft with a semi-rigid coupling to the motor and a pumping screw extending through the bearing post conduit and submerged bearing surfaces to develop fluid dynamic bearing films of fine soils and liquid vehicle, fitted with an inverted cup-shaped classifier head consisting of outwardly projecting spirally arrayed classifier pins located within the confines of the classifier basket.