Mitutoyo HR Series Rockwell Hardness Testers
Features:
- The new frame design allows the full 7.1" of specimen capacity without the need to cut a whole in the table.
- Simple to operate; the Dial Type HR210 features an automatic zero reset. The digital HR320 model uses a flashing bar graph to indicate when the initial test force has been reached.
- Automatic brake and automatic start function that prevents overloading and begins test cycle. The HR430 model also includes the dial a weight system for easier load selection.
- All models are complete with Flat and VEE anvils, diamond and 1/6" carbide ball indenters, 2 HRC and 1 HRBW Rockwell blocks (MR models)s or 3 Rockwell blocks and an HR30N and HR30TW for MS testers
Technical Data:
| Preliminary test force | 29.42N*, 98.07N |
| Test Force: Rockwell superficial* | 147.1, 294.2, 441.3N |
| Test Force: Rockwell | 588.4, 980.7, 1471N |
| Test force setting | By dial |
| Load control | Automatic (loading, duration, unloading) |
| Anvil | Flat (ø64mm) |
| Max. specimen height (from the center of indenter shaft) | 7.1" / 180mm |
| Max. specimen depth (from the center of indenter shaft) | 6.5" / 165mm |
| Stage elevation | Manual |
| Data output* | RS-232C, Digimatic code (SPC) |
| Power supply | 120V AC, 50/60Hz |
| *HR320-430 only |
Specifications:
| Item Number | 810-192-21A | 810-193-21A | 810-194-21A |
| Model Number | HR-320MS | HR-430MR | HR-430MS |
| Description | Digital Rockwell & Superficial Tester | Digital Rockwell Tester w/ Dial a Weight & Auto Brake Start |
Digital Rockwell & Superficial Tester w/ Dial a Weight & Auto Brake Start |
| Type of hardness test | Rockwell | ||
| Rockwell superficial | - | Rockwell superficial | |
| Preliminary test force (N) | 29.42, 98.07 ( 3Kgf, 10Kgf ) | 98.07 ( 10Kgf ) | 29.42, 98.07 ( 3Kgf, 10Kgf ) |
| Test force (N) Superficial | 147.1, 294.2, 441.3 ( 15Kgf, 30Kgf, 45Kgf ) |
- | 147.1, 294.2, 441.3 ( 15Kgf, 30Kgf, 45Kgf ) |
| Test force (N) Rockwell | 588.4, 980.7, 1471 ( 60Kgf, 100Kgf, 150Kgf ) | ||
| Standard | IS B 7726 ISO6508-2 ASTM E18-20 | ||
| Display | Digital | ||
| Minimum reading | 0.1 HR graduation | ||
| Preliminary test force (handling support) | Loading navigator indication | Automatic brake handle | |
| Preliminary test force setting | Dial switching | - | Dial switching |
| Total test force setting | Weight change | Dial switching | |
| Total test force control | Motor drive, Button start | Motor drive, Automatic start | |
| Test force duration | 3 - 5.5 s setting, Manual | 1 - 99 s setting, Manual | |
| Maximum specimen dimensions | Height 180 mm (100 mm if the cover is attached), depth 165 mm (from indenter axis to the frame) | ||
| Function | Success or failure decision function Offset revision function Hardness conversion function |
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| Data output | Digimatic RS-232C | ||
| Power supply | AC Input : 100-240 V, 50-60 Hz, 1.8 A, DC Output: 12 V – 4.17 A | ||
| Dimensions | 214 (W) × 512 (D) × 780 (H) mm | ||
| Mass | Approximately 47 kg | Approximately 50 kg | |
