Ernst NR3D: Precise Bench Hardness Tester for Small to Medium Parts
The Ernst NR3D is a precision bench Rockwell hardness tester that also performs Brinell readings — designed for testing items with small to medium dimensions, with no penetrator shroud for maximum access to small parts.
Known for precision and reliability, the NR3D is available in both Rockwell (MOD DR) and Super Rockwell (MOD DSR) versions. The Super Rockwell version is optimal for plastics control. Without a penetrator or penetrator shroud, it can measure smaller parts, spheres, and composite materials more easily than conventional testers.
Scales — MOD DR: HRC, HRD, HRF, HRE, HRH, HRG, HRK, Brinell HB30 Scales — MOD DSR: HR15N, HR30N, HR45N, HR15T, HR30T, HR45T, HR15W, HR30W, HR45W, HR15X
Suitable for: Small to medium parts · Spheres · Composite materials · Plastics (Super Rockwell version)
- Loads — MOD DR: 60–187.5 kgf
- Loads — MOD DSR: 10–45 kgf
- Preload — DR: 10 kgf · DSR: 3 kgf
- Min measurable diameter: 4 mm
- Working area: 3 × 3 mm
- Weight: 58 kg
- Norms: ASTM E-18 EN · ISO 6506
