An ion implantation system provides ions to a workpiece positioned in a vacuum environment of a process chamber on a cooled chuck. A pre-chill station within the process chamber has a chilled workpiece support configured to cool the workpiece to a first temperature, and a post-heat station within the process chamber, has a heated workpiece support configured to heat the workpiece to a second temperature. The first temperature is lower than a process temperature, and the second temperature is greater than an external temperature. A workpiece transfer arm is further configured to concurrently transfer two or more workpieces between two or more of the chuck, a load lock chamber, the pre-chill station, and the post-heat station.