Soil testing equipment Proving Ring Penetrometer to measure bearing strength

The Proving Ring Penetrometer is a 30 degree cone penetrometer used to determine the bearing capacity of subgrades or to measure soil compaction. The penetrometer also serves as a rapid means of determining the penetration resistance of soil in shallow exploration work.

The apparatus consists of a “T” shaped handle connected to a load ring 1 kN (100 kgf) cap., with max load pointer, and of an extension rod with five 100 mm graduations

Shaft：3/4″ (19 mm) diam. x 18″ l. (457 mm); graduated at 6″ (152 mm) intervals.

Extension Rod：3/4″ (19 mm) diam. x 36″ l. (914 mm); graduated at 6″    (152 mm) intervals

Cone：30 degree; 1 sq. in.; replaceable

Handle：Cast aluminum

Weight：5.4kg