brushed finish internal, and sanitary lid is 316 SS basket is 316 SS and cone is 316 SS. pull action filter for gentle handling of material. It allows the centrifuge to function with out a scraper knife, making it ideal for sensitive products. The pneumatic pull mechanism allows for no heel to be left over after discharge. This design works excellent in the fine chemicals, pharmaceutical, and the food industries. Manufactured to GMP standards with FDA approved parts. The basket aperture is 34.5", The Feed disk drive is driven by a Reliance Duty Master serial # 01MAP61661G001CE,3 HP, 1770 RPM, 230/460v,60 Hz Inverter ready, The cover is hinged, with hydraulic power pack for lid lifting (opening). The maximum height (for lid to open) is 121.5", the maximum width is 94.5" X maximum depth of 86.6" nitrogen purged. No CIP spray balls.