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Langry RH225-A concrete test hammer used for testing the compressive strength of ordinary concrete in the range of 10 to 70 N/mm² (1'450 to 10'152 psi) in structural engineering.
High quality raw materials
Imported high-quality springs are more fatigue-resistant, aluminum alloy spring seat snap ring assembly.
Improved pointer design, easy to adjust friction and more stable.
Abrasion resistance of super hard 6061 aluminum alloy casing, and the button is not easy to fall off by stretching process.
Precision machining technology
Adopt CNC machining center and other machine tools to refine the movement, and the rebound value is guaranteed.
Finely grind the spherical zero-setting screws to make therebound firing smoother and smoother.
High-precision aluminum alloy flange is not easy to be damaged, and high-precision hook is not easy to be elastically emptydue to abrasion.
User friendly design
Silicone bracket for soft hand protection, more comfortable rebound operation.
Beautiful label and ruler are easy to read, and the hard oxidation treatment of the parts is beautiful and durable.
Multiple original imported dust-proof components, cleaner movement and longer maintenance period.
High quality raw materials
Imported high-quality springs are more fatigue-resistant, aluminum alloy spring seat snap ring assembly.
Improved pointer design, easy to adjust friction and more stable.
Abrasion resistance of super hard 6061 aluminum alloy casing, and the button is not easy to fall off by stretching process.
Precision machining technology
Adopt CNC machining center and other machine tools to refine the movement, and the rebound value is guaranteed.
Finely grind the spherical zero-setting screws to make therebound firing smoother and smoother.
High-precision aluminum alloy flange is not easy to be damaged, and high-precision hook is not easy to be elastically emptydue to abrasion.
User friendly design
Silicone bracket for soft hand protection, more comfortable rebound operation.
Beautiful label and ruler are easy to read, and the hard oxidation treatment of the parts is beautiful and durable.
Multiple original imported dust-proof components, cleaner movement and longer maintenance period.
| Product Name | RH225-A Concrete Test Hammer | RH225-B Digital Concrete Test Hammer
| RH20-A Concrete Test Hammer
| RH75-A Concrete Test Hammer  |
|---|---|---|---|---|
| LED Display | — — | ● | — — | — — |
| Screen dot matrix | — — | 265 x 64 | — — | — — |
| Net weight | 1 KG | 1.2 KG | 0.8KG | 0.9 KG |
| PC Software | — — | ● | — — | — — |
| bluetooth | — — | ● | — — | — — |
| Battery Power | — — | ● | — — | — — |
| Impact Energy | 2.207 J | 2.207J | 0.196 J | 0.735 J |
| Calibration value of testing anvil | 80±2 | 80±2 | 74±2 | 74±2 |
| Compressive strength range | 10-70N/mm2 | 10-70N/mm2 | 2-15N/mm2 | 10-70N/mm2 |
| Name | Technical indicators |
|---|---|
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 |
| Bounce hammer unhook position | Scale line "100" at the score line |
Operating length of elastic tension spring | 61.5±0.3 mm |
Bounce hammer take-off position | Scale "0" |
| Calibration value on testing anvil | 80±2 |
| CTN DIM: 370×125×285mm | G.W.: 2.7kg |
| T/T |  |
| Alibaba trade assurance |  |
| Paypal |  |
- 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
- ASTM C 805 USA
- rh20-a rh75-a China
Components
1
2
3
4
5
1Rebound hammer
2Hand protector silicone hand rest
3A grinding stone
4One maintenance kit
5One injection-molded vibration-proof instrument box
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