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Help CenterHBRV-187.5D Motorized Brinell Rockwell Vicker Universal Hardness Testing Machine
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HBRV-187.5 Motorized Brinell Rockwell Vicker Universal Hardness Tester
Mobile/Whatsapp: +86-15098778967 Skype:hssdtest ALI: cn1001290168
HBRV-187.5 Motorized Brinell Rockwell & Vicker Universal Hardness Tester
1. Hardness is one of the important mechanic characteristics of the material while the hardness testing is the
most quickly and economic testing method,as well as an important method to judge the quality of the metal material or its component parts. The mechanic characteristics of most metal materials such as the strength, tiredness, wriggling and wearing out can be tested out approximately through its hardness testing.
2. The Motorized Brinell Rockwell & Vicker Hardness Tester, a multi-functional hardness tester with Brinell, Rockwell &Vicker 3 kinds of testing methods and 7 steps testing force will meet the needs of many kinds of hardness measurement. The instrument is adopted automatic shifter to load, dwell and unload testing force, therefore the operation for this instrument is simple, easy and quickly.
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 Vicker Hardness: 294.2N (30Kg), 980.7N (100Kg)
3. The Indenter Specifications:
3.1 The diamond Rockwell indenter
3.2 The diamond Vicker 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 & Vicker Hardness: 140mm
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 |
Vicker Hardness
13. The Tolerance and Repetition of Displayed Value for Vicker 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% |
|
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