FR-Z 060A
Spring-type Proctor Penetrator is used to determine the moisture-penetration resistance relationship of fine-grained soils. The load scale of the spring loading apparatus is divided between 10lbf and 150 lbf, with a range of 2 lbf.
Needle set; 28.55, 24.79, 20.22, 16.54, 12.83, 9.07, 6.40, 5.23 and consists of 9 needles with a diameter of 4.52 mm.