Penetration Apparatus

The Penetration is the consistency of a bituminous material expressed as the distance in tenths of a millimetre that a standard needle vertically penetrates a sample of the material under known conditions of loading, time, and temperature.

The penetration is measured with a penetrometer by means of which a standard needle is applied to the sample under specific conditions.

The penetration test is used as a measure of consistency. Higher values of penetration indicate softer consistency. The value of penetration obtained is also used to classify the bitume in a range of penetration grade.

Technical Specifications: Complete with micrometer vertical adjustment, Semiautomatic version with automatic controller, complete with micrometer vertical adjustment and adjustable electronic timer of the fall time. Cast iron base with leveling screws, digital penetration measurement gauge 0.01 mm precision, release button, automatic zeroing. Semi-automatic model complete with automatic controller, which automatically releases the plunger by a magnetic device, complete with micrometer vertical adjustment and adjustable electronic timer of the fall time, according to EN 1426, ASTM D5, AASHTO T49. The instrument is provided with lead screw gear arrangement, Leveling screws, Spirit level. The head can be clamped at any desired height. A rack and pinion and pointer assemble provides fine adjustment of needle or cone tip to sample. It incorporates a clutch mechanism. Which makes reading of penetration and subsequent resetting a simple and accurate operation. The electronic timer allows the user to set up and read the fall time of the needle during testing. Penetration needle made from hardened polished stainless steel. Univocally traceable by engraved serial number. Set of 3. Conforming to ASTM D5 and EN 1426.Supplied with conformity certificate. Sample cup dia 55×35 mm. Kit of 6. Transfer dish with support Weight approx.: 8.5 kg.