Proctor Penetrometers :

This is identical to spring type, 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.

Salient Features

• Specifications : Comprises hydraulic proctor needle system complete with a pressure gauge fixed at easily readable Angle reading 0-70kg. x 2 kg. A set of needle points consisting one each 0.25, 0.5,1.0,1.5,2.0,3.5, and 6.0 sq.cm. and a Tommy pin. Graduation at every 12.5 mm to indicate depth of penetration are marked on longer stem for use with needles of larger areas. Smaller stem is also graduated at every 12.5 mm and is used with needles of smaller areas. Complete as above in a wooden carrying case.