Mitutoyo Series 963 Rockwell Hardness Testers
- The new frame design alllows the full 7.1” of specimen capcity without the need to cut a whole in the table.
- Simple to operate; The digital HR320 model uses a flashing bar graph to indicate when the initial test force has been reached.
- 430 models feature 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.
These new hardness testers include a smoother operating elevating screw, warning buzzer, cylindrical part corrections and adjustable RS232C baud rates. Testers now come complete with certified indenters and test blocks.
Technical Data:
| Preliminary test force | 29.42N*, 98.07N |
| Test force | |
| Rockwell superficial* | 147.1, 294.2, 441.3N |
| Rockwell | 588.4, 980.7, 1471N |
| Test force setting | By dial |
| Load control | Automatic (loading, duration, unloading) |
| Anvil | Flat (ø64mm) |
| Max. specimen height | 7.1" / 180mm |
| Max. specimen depth | 6.5" / 165mm (from the center of indenter shaft) |
| Stage elevation | Manual |
| Data output* | RS-232C, Digimatic code (SPC) |
| Power supply | 120V AC, 50/60Hz |
* HR320-430 only
Specifications:
| Item Number | 963-231-11A | 963-240-11A | 963-241-11A |
| Model | HR-320MS | HR-430MR | HR-430MS |
| Test Scales | Rocwell and Rockwell Superficial | Rockwell | Rocwell and Rockwell Superficial |
| Standard | JIS B 7726 ISO 6508-2 ASTM E18-10 | ||
| Preliminary Test Force | 98.07N (10kgf), 29.42 (3kgf) | 98.07N (10kgf) | 98.07N (10kgf), 29.42 (3kgf) |
| Test Force Rockwell | 588.4N (60kgf), 980.7N (100kgf), 1471N (150kgf) | ||
| Test Force Superficial | 147.1N (15kgf), 294.2N (30kgf), 441.3N (45kgf) | - | 147.1N (15kgf), 294.2N (30kgf), 441.3N (45kgf) |
| Display | Matrix Backlight LCD | ||
| Hardness Min Value | 0.1 HR | ||
| Scale Conversions | HRC, HRB, HV, HBW, HS, Mpa plus offset, OK/NG | ||
| Total Test Force Control | Automatic (loading, duration, unloading) | ||
| Loading Method | Dead Weight | ||
| Load Duration (Dwell) | Adjustable (1s to 99s) or Manual | ||
| Max. Specimen Height | 7.1in-180 | ||
| Max. Depth | 6.5in-165 | ||
| Data Output | RS-232C, SPC | ||
| Power Supply | 120V AC (±10%), 60Hz | ||
| Dimension (DxWxH) | 20.6" x 9.25" x 30.7" (523 x 235 x 780 mm) | ||
| Mass | 102.07 lbs. (46.3 kg) | 108.69 lbs. (49.3 kg) | 110.01 lbs. (49.9 kg) |
