The original Schmidt® hammer, type N, is designed for non-destructive testing of concrete items 4″ (100mm) or more in thickness, or concrete with a maximum particle size less than or equal to 1.25″ (32mm). It is designed for testing concrete within a compressive strength range of 1,450 to 10,152 psi (10 to 70 N/mm2) and impact energy of the test is 1.6 ft-lbs (2.207 Nm). The (type N) Schmidt hammer is pressed against the concrete structure and the rebound values are displayed on a mechanical sliding scale. These values can then be correlated to compressive strength by using the conversion table chart affixed to the hammer. The original Schmidt hammer is known for its durability and accuracy.Technical Data Original Schmidt Type N Measuring Range 10 – 70 N/mm2 (1,450 to 10,152 psi) Impact Energy 2.207 Nm Paper Strip NoOriginal Schmidt Type NR Measuring Range 10 – 70 N/mm2 (1,450 to 10,152 psi) Impact Energy 2.207 Nm Paper Strip YesOriginal Schmidt Type L Measuring Range 10 – 70 N/mm2 (1,450 to 10,152 psi) Impact Energy 0.735 Nm Paper Strip NoOriginal Schmidt Type LR Measuring Range 10 – 70 N/mm2 (1,450 to 10,152 psi) Impact Energy 0.735 Nm Paper Strip YesWhat’s In The Box: (1) Impact device (1) Carrying case (1) Grinding stone (1) User manual (1) Calibration certificate.
