Duramin-4
Entry-level Vickers hardness tester – optimal repeatability and easy operation
Duramin-4 – Manual Micro and Micro/Macro Hardness Tester
- Methods: Vickers, Knoop and Brinell hardness testing
- Load ranges: 10 gf-2 kgf, 1-62.5 kgf
- Manual micro and micro/macro hardness tester
- Automatic six-position turret
- Manual XY-stage and Z-axis
- Manual indent evaluation via an eyepiece
This entry-level range of microhardness testers primarily targets Vickers testing, but can also be used for Knoop and Brinell testing. The Duramin-4 testers are equipped with a combination of manual and automatic features to ensure easy operation. Duramin-4 is available in two load ranges; 10 gf – 2.0 kgf and 1.0 kgf – 62.5 kgf.
Accuracy and repeatability
Advanced load cell technology ensures that the Duramin-4 conforms to all operating standards, while offering consistent repeatability throughout the entire load range.Easy operation
The display unit combines a touchscreen with a simple user interface, designed to be easy to use, yet robust enough to withstand the toughest production environment. The hardness evaluation takes place manually via an eyepiece, where the measurement lines are simply positioned around the indent.Dedicated solution
Duramin-4 is ideal for use as a dedicated Vickers single task tester, both in a laboratory (M1) or more production-focused (M2) environment.Facts
Model Types
Technical Data
Get your brochure for Duramin-4
Model Types
Both Duramin-4 models come with an eight-inch touchscreen, manual indent evaluation via an eye piece, manual Z-axis, manual XY-stage (size 90 x 90 mm, stroke 25 x 25 mm), including manual micrometers. Both are equipped with a motorized, six-position measurement turret.

Duramin-4 M1
Low load hardness tester based on load cell technology Ideal for the automatic testing of Vickers and Knoop Test height 0-200 mm
| Variants | 10 gf – 2 kgf | 1.0 kgf – 62.5 kgf |
|---|---|---|
| Low frame | Duramin-4 M1 | |
| Tall frame | Duramin-4 M2 |

Duramin-4 M2
Macrohardness tester based on load cell technology Ideal for the automatic testing of Vickers, Knoop, and Brinell With a test load range of 9.81 – 613.1 N (1.0 kgf – 62.5 kgf) Test height 0-400 mm
Struers’ equipment is in conformity with the provisions of the applicable international directives and their appurtenant standards. Struers’ products are subject to constant product development. Therefore, we reserve the right to introduce changes to our products without notice.







