EN
The Qscratch 20 GO is a semi-automatic macro/micro scratch tester for standardized quality control of coatings and surfaces. It is designed for laboratories that require defined scratch tests, reliable operation, and traceable results – especially for single measurements with progressive or constant load.
The system combines a dynamically automated Z-axis, motorized Y-axis, electronic force control, and intuitive QpixControl2 software into a practical workflow for routine surface and coating testing. Scratch tests can be performed under controlled conditions, optically evaluated, and documented in structured test reports. The Qscratch 20 GO supports relevant standards including DIN EN ISO 20502, ASTM C1624, ISO 27307, and ASTM G171, making it a compact solution for production-oriented monitoring, routine testing, and reproducible scratch test results.
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Method: Progressive load | Method: Constant load |
| The initial and final loads, as well as the load rate, are defined. The load increases along the scratch length; visible events can be assigned as Lc points at their respective positions. ISO: PFST – progressive force scratch test ASTM: PL – progressive load Lc: Load critical | The normal force remains constant over the scratch length. This method is suitable for individual measurements, series comparisons, and recurring test conditions in a quality control setting. ISO: CFST – constant force scratch test ASTM: CL – constant load Lc: Load critical |
https://www.qatm.com/products/surface-coatings-testing/scratch-testers/qscratch-20-go/
Test methods
DIN EN ISO 20502 / ASTM C1624 – Determination of adhesion and mechanical failure modes of hard ceramic coatings using a scratch test.
ISO 27307 – Evaluation of the adhesion and cohesion of thermally sprayed ceramic layers on a cross-section using a transverse scratch test.
ASTM G171 – Determination of the scratch hardness of material surfaces using a defined diamond stylus, a constant normal force, and evaluation of the remaining scratch width.
Qscratch 20 is a automated macro/micro scratch tester for coatings and functional surfaces. The system combines controlled force application, integrated optical evaluation, and guided software operation and a report generation. It was developed specifically for laboratories that make critical surface-related decisions on a daily basis.
Designed for quality assurance: The system combines standardized scratch tests with high repeatability, efficient documentation, and intuitive operation. QpixControl2, the integrated workflow, flexible export options, and optional inspection functions turn it into a powerful, all-in-one solution rather than a simple stand-alone tester.
QATM brings many years of experience in hardness testing, metallography, and global service to its scratch testing portfolio, thereby safeguarding your investment in the long term.
| Test force range | 0.5* – 200 N |
| Constant load | Single measurements |
| Progressive load | Single measurements |
| Z-axis | Dynamic, automated (CAS-Technic), Travelling distance Z 150 mm (5.91“) |
| Tool positions | 8-fold motorized tool changer (max. 3 testing modules, max. 7 lenses) |
| Included basic equipment | Rockwell diamond; 20x, 50x Lenses |
| Lens types | Standard (Achromat) and High Quality (Semi-apochromat) for hardness testing and microscopy |
| Sample image camera | – |
| Cross slide | Motorized Y axis |
| Table size | 150 x 120 mm (5.91 x 4.72″) |
| Positioning accuracy | Y-axis +/- 0.2 µm |
| Traverse path | Y 150 mm (5.91″) |
| Control elements | Emergency stop, Start button, Joystick Y/Z |
| Max. workpiece weight | 50 kg (110 lbs) |
| Weight of basic device | 58 kg (127.9 lbs) |
| Optional | Qpix Inspect Module |
* 0.5 N and 1 N > 1% accuracy
