Application of TT-MRH Series Motor Rockwell Hardness Tester
It is widely used to test hard alloy, carburized steel, hardened steel, surface quenched steel, hard cast steel, aluminum alloy, copper alloy, malleable cast, mild steel, tempered steel, annealed steel, bearing steel, etc.
Features of TT-MRH Series Motor Rockwell Hardness Tester
TT-MRH1070
- Test Standard: GB/T 230.2, ISO 6508-2, ASTM E18
- The machine has steady performance, precise display value and easy operation.
- Adopts motor-driven automatic loading, dwell and unloading, no human operating error.
- Frictionless loading shaft, high precision testing force.
- HRA, HRB, HRC scale can be read direct from the digital gauge.
- Optional for other Rockwell scale.
TT-MRH2070
- Friction-free spindle ensures test force accuracy
- The loading and unloading test force is completed electrically without human operating error
- Independent suspended weights and core spindle system make the hardness value more accurate and stable
- The dial can directly read the HRA, HRB and HRC scales
Technical Specifications of TT-MRH Series Motor Rockwell Hardness Tester
| Model | TT-MRH1070 | TT-MRH2070 | ||||
| Measuring range | 20-95HRA,10-100HRB, 10-70HRC | 20-95HRA,10-100HRB, 20-70HRC | ||||
| Initial Test Force | 10kgf (98.7N) | |||||
| Total test force | 60Kgf (588.4N), 100Kgf (980.7N), 150Kgf(1471N) | |||||
| Measuring scale | –
| HRA, HRB, HRC scales can be read directly on the dial | ||||
| Optional scales | –
| HRD, HRF, HRG, HRH, HRE, HRK, HRL, HRM, HRP, HRR, HRS, HRV | ||||
| Test force loading method | – | Motor-driven completion of loading test force, maintaining test force, and unloading test force; | ||||
| Maximum height of specimen allowed | 175 mm
| |||||
| Depth of the throat
| 135 mm
| |||||
| Dwell Type | 2~60S | – | ||||
| Indenter type | Diamond cone indenter, ф1.588mm ball indenter | |||||
| Carriage control | Automatic loading/Dwell/unloading | – | ||||
| Hardness value reading | Digital reading | Dial reading | ||||
| Hardness resolution | 0.1HR | 0.5HR | ||||
| Over all dimensions | 450*230*540mm | |||||
| Packing size | 530x400x770mm | |||||
| Power supply | AC 220V/50Hz | AC220V±5%, 50~60Hz | ||||
| Weight | 80kg | |||||
Standard Configuration of TT-MRH Series Motor Rockwell Hardness Tester
| Items | TT-MRH1070 | Items | TT-MRH2070 |
| Main machine | 1 set | Main Machine | 1 |
| Standard Rockwell Hardness Block | – | Φ1.588 steel ball indenter | 1 |
| HRB | 1pc | Small flat workbench | 1 |
| HRC (High, Low value) | 2pcs | Rockwell hardness block: 60-70HRC | 1 |
| Anvil (Big, Middle, “V”-Shaped) | 3pcs | Rockwell hardness block: 20-30HRC | 1 |
| Diamond Cone Indenter | 1pc | Screwdriver | 1 |
| Diamond Cone Indenter | 1pc | 120° diamond indenter | 1 |
| Power Cable | 1pc | large flat working table | 1 |
| Spanner | 1pc | V-shaped workbench | 1 |
| Operating Manual | 1pc | Rockwell hardness block: 80-100HRB | 1 |
| Warranty Card | 1 copy | Power cord | 1 |
| Training Certificate | 1 copy | Operating Manual, Warranty Card & Training Certificate | 1 |
