HT225-N  Concrete Test Hammer is a nondestructive detection instrument structure and concrete compression strength

The surface hardness of concrete structures by detecting the estimated strength of the concrete member

The instrument uses a spring drive value fillip hammer shells, shells hit the end of the contact is flip the lever detection test surfaces of concrete structures other end, resulting in resilience. In effect resilient, elastic push pointer slide hammer they move in order to gain a pointer readings reasonable instrument structure, easy calibration and maintenance. small size, light weight, but to carry. suitable for field testing

Concrete Test Hammer (Rebound Schmidt) – LANGRY HT225-N

Model HT225-N
Standard impact energy	2.207 J
Pointer length	20.0 ± 0. 2mm
Friction of pointer	0.65 ± 0. 15N
Spherical radius of bouncing rod	25±1.0mm
Elastic tension spring stiffness	785.0 ± 30. 0N/m
bounce hammer unhook position	Scale line “100” at the score line
Operating length of elastic tension spring	61.5±0.3mm
mpact length of bounce hammer	75±0.3mm
Bounce hammer take-off position	Scale “0”
Calibration value on steel anvil	80 ± 2