This is identical to above, except that the penetration pressure on the needle is conveyed through a hydraulic system to a hydraulic pressure gauge. This system permits a greater control over rate of penetration because of better visibility of load indication on the gauge.
Specifications :
ENTEK-027

• Proctor Needle, (Proctor Penetrometer), ASTM D-1558
• Consists of a body housing a spring, a plunger calibrated to read 0-40 kg x 1 kg & a handle.
• Two stems are provided, a larger stem and a shorter stem, both graduated at 12.5 mm intervals, to indicate the depth of penetration.
• The larger stem & the smaller stem are used with needles of larger & smaller areas respectively. Complete with Needles points set comprising each of 0.25,0.5,1, 1.25,2,3.5, & 6 cm. sq & taming pin complete in a nice teak wooden carrying case.

This is identical to above, except that the penetration pressure on the needle is conveyed through a hydraulic system to a hydraulic pressure gauge. This system permits a greater control over rate of penetration because of better visibility of load indication on the gauge.
Specifications :
ENTEK-027

• Proctor Needle, (Proctor Penetrometer), ASTM D-1558
• Consists of a body housing a spring, a plunger calibrated to read 0-40 kg x 1 kg & a handle.
• Two stems are provided, a larger stem and a shorter stem, both graduated at 12.5 mm intervals, to indicate the depth of penetration.
• The larger stem & the smaller stem are used with needles of larger & smaller areas respectively. Complete with Needles points set comprising each of 0.25,0.5,1, 1.25,2,3.5, & 6 cm. sq & taming pin complete in a nice teak wooden carrying case.