meansure brienll, rockwell and vickers hardness. 3 kinds of testing methods and 7 steps testing force. easy operation and good
Technical specifications
1. The Initial Test Force: 98.07N (10Kg); Tolerance: ± 2.0%
2. The Tolerance of Total Test Force: ± 1.0%
2.1 The Test Force of Brinell Hardness: 294.2N(30kg), 306.5N (31.25kg), 612.9N (62.5kg),
980.7N(100kg), 1893N(187.5kg)
2.2 The Test Force of Rockwell Hardness: 588.4N (60kg), 980.7N (100kg), 1471N(150kg)
2.3 The Test Force of Vickers Hardness: 294.2N (30Kg), 980.7N (100Kg)
3. The Indenter Specifications:
3.1 The diamond Rockwell indenter
3.2 The diamond Vickers indenter
3.3 The φ1.5875 mm, φ2.5 mm, φ5 mm ball indenter
4. The Power Source and the Voltage: AC220V±5%, 50-60 HZ
5. Time-delayed control: 2-60 seconds, can be adjusted
6. The Distance from the Indenter Central Point to the Instrument Body: 165mm.
7. The Max. Height of the Specimen:
7.1 The Max. Height of the Specimen for Rockwell Hardness: 170mm
7.2 The Max. Height of the Specimen for Brinell & Vickers Hardness: 100mm
8. The Amplification of Objective: 37.5×; 75×
9. The Overall Dimension of Hardness Tester(Length×Width×Height): 520×215×700mm
10. The Total Weight of the Tester: 78kg
Rockwell Hardness
11. The Tolerance of Rockwell Hardness Display Value
Hardness Scale | Hardness Range of The Standard Testing Blocks | The Max. Tolerance of Hardness Display Value |
HRA | 20~≤75HRA | ±2HRA |
>75~≤88HRA | ±1.5HRA | |
HRB | 20~≤45HRB | ±4HRB |
>45~≤80HRB | ±3HRB | |
>80~≤100HRB | ±2HRB | |
HRC | 20~≤70HRC | ±1.5HRC |
Brinell Hardness
12. The repetition and tolerance of displayed Value for Brinell hardness tester
Hardness Value of Standard Testing Blocks (HBW) | Tolerance of Displayed Value (%) | Repetition of Displayed Value (%) |
≤125 | ±3 | ≤3 |
125<HBW≤125 | ±2.5 | ≤2.5 |
>225 | ±2 | ≤2 |
Vickers Hardness
13. The Tolerance and Repetition of Displayed Value for Vickers Hardness Tester
Tolerance of Displayed Value | Repetition of Displayed Value | |||
Hardness Scale | Displayed Value of Hardness Test Block | Tolerance of Displayed Value | Displayed Value of Hardness Test Block | Repetition of Displayed Value |
HV30 HV100 | ≤250HV | ±3% | ≤225HV | 6% |
300~1000HV | ±2% | >225HV | 4% |
Good Quality (HBRV-187.5)Motorized Brinell Rockwell & Vickers Hardness Tester