Since 1957, Ernst Timing Screw Co. has made precision timing screws that guide, space, orient, and transfer containers through packaging machinery. The Bensalem company also builds drive units, quick-change parts, and custom CNC-machined components, with particular experience in unusual container shapes and specialized packaging-line layouts. Ernst says it has manufactured change parts for most types of packaging machinery and has been producing its Turn-A-Round screws for 30 years.