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RH450-A is a high-impact rebound hammer developed for higher-strength concrete assessment in demanding structural projects. It is suitable for field inspection tasks where conventional rebound hammers are not sufficient.Suitable for use in NATA accredited laboratories.
Model
RH450-A
Measuring range
High-strength concrete applications (commonly C50-C100 projects)
Standard impact energy
4.500 J
Pointer length
20.0 +/- 0.2 mm
Friction of pointer
0.65 +/- 0.15 N
Spherical radius of bouncing rod
35 +/- 1.0 mm
Elastic tension spring stiffness
900 +/- 40 N/m
Operating length of elastic tension spring
106.0 +/- 0.5 mm
Bounce hammer take-off position
Scale "0-1"
Calibration value on testing anvil
88 +/- 2
Standard
ASTM C 805 USA
ISO/DIS 8045 International
EN 12 504-2 Europe
BS 1881, part 202 Great Britain
DIN 1048, part 2 Germany
NFP 18-417 France
B 15-225 Belgium
ENV 206 Europe
JGJ/T 23-2011 China
Technical advantages
High-toughness spring design supports better elasticity and fatigue resistance.
Chrome-plated pointer enables smoother adjustment and stable operation.
Precision-machined mechanism helps maintain dependable rebound behavior.
High-strength housing offers practical resistance for regular site use.
Ergonomic hand grip improves handling comfort during repeated testing.
Components
Rebound hammer
Hand protector silicone hand rest
A grinding stone
One maintenance kit
Instrument box
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