Abstract: An industrial centrifuge for extracting one or more compounds from biomass includes a centrifuge basket disposed within a cylindrical vessel. The centrifuge basket includes a cylindrical sidewall comprising an upper perforated portion and a lower solid portion and a basket baseplate coupled to the sidewall between the upper perforated portion and the lower solid portion. The centrifuge includes a spindle coupled to the basket baseplate, a spindle bearing assembly, and a contact seal disposed between the spindle bearing assembly and the basket baseplate. The lower solid portion of the sidewall, the spindle, and the basket baseplate define a skirted volume. During operation of the industrial centrifuge, air trapped within the skirted volume provides an air seal between an extraction fluid in the cylindrical vessel and the contact seal, spindle bearing assembly, or both, to prevent extraction fluid from contacting the spindle bearings and causing damage thereto.