RH20-A is a direct-reading mortar rebound hammer designed for quick and practical strength checks on masonry mortar. It offers stable mechanical response, clear scale reading, and convenient operation for routine inspection tasks.
Factory calibrated with calibration certificate included. Suitable for use in NATA accredited laboratories and for calibration by NATA accredited calibration laboratories.
Model
RH20-A
Measuring range
2-15 MPa
Standard impact energy
0.196 J
Pointer length
20.0 +/- 0.2 mm
Friction of pointer
0.5 +/- 0.1 N
Operating length of elastic tension spring
61.5 +/- 0.3 mm
Stretch length of impact spring
75.0 +/- 0.3 mm
Bounce hammer take-off position
Scale "0-1"
Calibration value on testing anvil
74 +/- 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
The main spring uses high-quality steel wire for better durability and long-term stability.
Refined processing improves rebound consistency and helps reduce reading fluctuation.
Direct-reading scale design provides clear indication and straightforward operation.
High-strength aluminum alloy body supports frequent field use.
Compact form factor is suitable for daily mortar inspection work.
