Sample ejectors quickly extrude compacted soil or asphalt samples from soil density or Marshall compaction molds. The sample ejector works for both lab and field use to extract soil samples from 4″ and 6″ compaction molds. The ejection force generates by means of a 3-ton capacity, hand operated hydraulic jack. The cast-aluminum ejector head assembly positions at different heights through the use of quick release pins. This helps the operator to easily match the ejection travel to the height of the mold being used. In addition, adapter ring accessories provide soil samples from 2″, 2.5″, and 3″ diameter Shelby tubes to be extruded.