An industrial centrifuge for extracting one or more compounds from biomass, the industrial centrifuge comprising: a centrifuge basket disposed within a cylindrical vessel , the centrifuge basket comprising: a sidewall comprising an upper perforated portion and a lower solid portion , where the sidewall is cylindrical; a basket baseplate coupled to an inner surface of the sidewall between the upper perforated portion and the lower solid portion ; and a spindle coupled to the basket baseplate and operatively coupled to a drive mechanism operable to rotate the spindle about an axis; a spindle bearing assembly coupled to the cylindrical vessel and disposed between a bottom of the cylindrical vessel and the basket baseplate ; and a contact seal disposed between the spindle bearing assembly and the basket baseplate ; wherein: the spindle passes vertically through the spindle bearing assembly and extends vertically downward to the drive mechanism disposed vertically below the bottom of the cylindrical vessel ; the lower solid portion of the sidewall , a portion of the spindle , and the basket baseplate define a skirted volume ; at least a portion of the spindle bearing assembly is disposed within the skirted volume ; and during operation of the industrial centrifuge , an air bubble trapped within the skirted volume provides an air seal between an extraction fluid in the cylindrical vessel and the contact seal . a centrifuge basket disposed within a cylindrical vessel , the centrifuge basket comprising: a sidewall comprising an upper perforated portion and a lower solid portion , where the sidewall is cylindrical; a basket baseplate coupled to an inner surface of the sidewall between the upper perforated portion and the lower solid portion ; and a sidewall comprising an upper perforated portion and a lower solid portion , where the sidewall is cylindrical; a basket baseplate coupled to an inner surface of the sidewall between the upper perforated portion and the lower solid portion ; and a spindle coupled to the basket baseplate and operatively coupled to a drive mechanism operable to rotate the spindle about an axis; a spindle bearing assembly coupled to the cylindrical vessel and disposed between a bottom of the cylindrical vessel and the basket baseplate ; and a contact seal disposed between the spindle bearing assembly and the basket baseplate ; wherein: the spindle passes vertically through the spindle bearing assembly and extends vertically downward to the drive mechanism disposed vertically below the bottom of the cylindrical vessel ; the lower solid portion of the sidewall , a portion of the spindle , and the basket baseplate define a skirted volume ; at least a portion of the spindle bearing assembly is disposed within the skirted volume ; and during operation of the industrial centrifuge , an air bubble trapped within the skirted volume provides an air seal between an extraction fluid in the cylindrical vessel and the contact seal . the spindle passes vertically through the spindle bearing assembly and extends vertically downward to the drive mechanism disposed vertically below the bottom of the cylindrical vessel ; the lower solid portion of the sidewall , a portion of the spindle , and the basket baseplate define a skirted volume ; at least a portion of the spindle bearing assembly is disposed within the skirted volume ; and during operation of the industrial centrifuge , an air bubble trapped within the skirted volume provides an air seal between an extraction fluid in the cylindrical vessel and the contact seal . <EOS>