It is used to determine the consistency of a bituminous sample under fixed conditions of load, time, and temperature. Penetration is expressed in tenths of millimeters of vertical penetration with a standard needle.

It consists of:

– Aluminum base with leveling screws and bubble level
– Vertical rod with micrometric vertical displacement
– 150 mm diameter dial graduated in 360° increments with 0.1 mm divisions
– Free-fall bronze slider
– Release button
– Automatic zero adjustment
– Penetration
needle – Set of 50 and 100 g weights –
55 x 35 mm diameter bronze container
– 70 x 45 mm diameter bronze container

Dimensions: 220x170x410 mm
Weight: 11 Kg