High-precision, electrically-driven ball screw movement, faster and more precise than pneumatic or air over oil systems. Fill and charge speeds can be better controlled and changes performed at any point of the stroke (i.e., to reduce speed at the end of a fill cycle to avoid splashing). Capable of handling breakable particulates up to ¾ in diameter. Reservoir tank mounted directly above rotary valves for direct product feed. Heavy duty 304 stainless steel welded frame construction. FDA approved metallic rotary valves. Minimal air consumption. All contact parts are stainless steel, sanitary, Teflon, Buna and Viton. Omron PLC for all machine logic functions.