The alphaDUR mini is the smaller variant of the alphaDUR which has been successfully used in hardness testing for many years. The technology is identical, and all the current accessories are compatible.
The alphaDUR mini is very easy to operate because all the information is shown on the large screen display. The hardness scale and material can be quickly changed by the touch of a button.
Measurements can be done quickly and accurately. The measured value is displayed directly after the test load has been applied. A test load between 1 and 10 kg can be chosen depending on the application, probe, and the sample surface.
The test load should be applied steadily, shock-free and along the probe. The test is done perpendicular to the test surface. Differences > 5° from the perpendicular will cause a significant error in the measured result. The minimum distance from the edge of the sample must be 5mm and the minimum distance between indents must be 1mm for harder material and 3mm for softer material.
| Specification | |
| Hardness Scales | HRC; HRB; HV; HB; UTS |
| Test Loads | 10; 20; 30; 49; 98N (probe dependent) |
| Display | Colour LCD 320 x 240 pixels |
| Interface | USB; direct data transfer to USB drive |
| Data Memory | 100;000 data records with date and time |
| Statistics | Average value; min.; max.; std. dev. |
| Battery | Built in Li-ion battery; approx. 9hrs |
| Dimensions | 135 x 80 x 23mm |
| Weight | Device 320g; Probe 190g |
| Min. Thickness | 5mm - dependent on dimensions |
| Min. Weight | 300g – dependent on dimensions |
| Test load | Typical Applications |
| 98 N | Small forgings; weldseam testing; testing of the heat affected zone (HAZ) |
| 50 N | Induction/case-hardened machine parts; camshafts; turbines; welds; HAZ |
| 10 N | Ion-nitrided embossing tools and matrices; forges; press |
| 3 N | Layers; e.g. Copper and Chrome layers on steel cylinders (t ≥ 0.040 mm) Copper gravure cylinders; coatings; hardened layers (t ≥ 0.020 mm) |
