<p>Disclosed herein are embodiments of a classifier (100) for classification of particles according to their size and/or weight. Classifiers (100) disclosed herein may include a mixing chamber (120), and a separation chamber (110), where the separation chamber may be separable into parts. Classifiers (100) disclosed herein may include a fluidizing chamber (130). The separation chamber (110) may include a de-aeration chamber (151) and a launder (117).</p>
