Langry RH225-A 混凝土回弹仪 (2.207 J)

Standard impact energy: 2.207 J

Pointer length: 20.0 ± 0. 2 mm

Friction of pointer: 0.65 ± 0. 15 N

Spherical radius of bouncing rod: 25±1.0 mm

Elastic tension spring stiffness: 785.0 ± 30. 0 N/m

Operating length of elastic tension spring: 61.5±0.3 mm

Bounce hammer take-off position: Scale "0~1"

Calibration value on testing anvil: 80±2

Manual