CISAM-Ernst NR3-D – benchtop Rockwell tester for laboratories and training
Applications
For Rockwell hardness testing with standardised preload and main load on a wide range of materials – from hard metals to light alloys and plastics. Aimed at educational institutions and laboratories; the standard and superficial (Super Rockwell) versions are interchangeable on the same frame.
Key features
- Interchangeable MOD DR and MOD DSR versions on the same frame
- Spring load system for harsh conditions (temperature, dust, humidity, vibration)
- Removable measuring head – faster maintenance and calibration
- Working area 3 × 3 mm, min. diameter 4 mm – suitable for small parts, balls, composites
- Digital readout display, RS232 output
- Positioned by the manufacturer as an economical solution
Models
| Model | Methods / scales | Load | Note |
|---|---|---|---|
| NR3-D MOD DR | Rockwell HRC, HRD, HRE, HRF, HRG, HRH, HRK; HB30 | 60, 62.5, 100, 125, 150, 187.5 kgf (588–1839 N); preload 10 kgf (98.1 N) | Manual load application |
| NR3-D MOD DSR | Super Rockwell HR15N, HR30N, HR45N, HR15T, HR30T, HR45T, HR15W, HR30W, HR45W, HR15X | 10, 15, 15.6, 30, 31.2, 45 kgf (98–441 N); preload 3 kgf (29.4 N) | Manual load application |
Technical data
- Weight: 58 kg
- Working area: 3 mm × 3 mm; min. measurable diameter 4 mm
- Dwell time: set by the operator
- Output: RS 232
Standards
ASTM E 18; EN ISO 6506.
What we offer
- Selection of the instrument and configuration for your task, together with the manufacturer
- Trial measurements of your samples in the manufacturer’s laboratory
- Training, calibration and service organised through the manufacturer
Technical data according to the manufacturer: cisam-ernst.com
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