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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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 compa-risons, and recurring test conditions in a quality control setting.
ISO: CFST - constant force scratch test
ASTM: CL - constant load
Lc: Load critical
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.
The principle
In the scratch test, a diamond stylus is moved across the coated surface under a defined normal force. Visible events such as cracking, spalling, or penetration of the coating are localized along the scratch mark and assigned to the corresponding critical load. Thus, the scratch mark not only indicates that a failure is occurring; it also shows where it is occurring—and makes the load at the critical point traceable.
Lc1 - Initial cracking / plastic deformation
Lc2 - Spalling
Lc3 - Penetration of the coating down to the substrate
The following interactive section shows how typical failure events along the scratch track are analyzed. Click on the LC points to see how cracking, spalling, and coating penetration are associated with specific positions and loads.
The QATM-developed, in-house manufactured lens system sets new standards. As well as providing crystal clear image quality for hardness testing, Koehler illumination uses white LED light and motor-operated aperture shuttering to produce ideal contrast, even for high magnification images.
Experienced metallurgists agree the image quality provided by the Qscratch is comparable in all aspects with that of established sophisticated microscopes. The up-to-date concept and new lenses in the optic system enable the device to completely meet even the strictest physical ‘test system definition’ requirements in compliance with DIN EN ISO6507-1/2:2018.
The motorized tool changer can accommodate up to three scratch test modules and up to seven lenses. This allows for overview, detailed inspection, and Lc determination to be performed directly within the scratch test sequence—on a single axis and without offset.
沿双Z轴分配的垂直运动具有决定性的优势。 通过第一个Z轴进行动态运动控制，使压头能够以30mm/s的速度方便快捷地朝着测试表面定位。QATM系统中额外的第二个Z轴控制，提供了高分辨率的定位系统，可以在施加力和聚焦时实现更高的精度。
所有的配置都装备了新的LED空间照明，简化了对于单个样品的测试定位。
创新型的防碰撞系统（CAS）技术通过生成可视区域所有移动的3D预览计算， 保护设备中的机械零部件不受到碰撞和防止操作错误。
数字卡尺和Qpix Control2系统兼容，可以读取部件尺寸、高度和直径，并通过按键，输入到软件中。A和A+型号的测试头高度控制可以实现完全自动地到达测试高度而无需手动输入。
The illuminated QATM logo displays the current device status at a glance. The range of flash intervals indicates whether the device is operating automatically or is free to be used for new tasks for staff all around the lab. In addition, the LED test space lighting, installed as standard, ensures that samples and sample holders are positioned correctly.
On the Qscratch 20, it also ensures uniform light intensity for sample imaging.
Precise electronic load control ensures that the test load—as a critical test parameter—remains controlled, reproducible, and traceable at all times.
The selected loading logic is linked to the scratch mark, position, and result. Methods can be applied to sample series, coating variants, and process comparisons.
Adjustable clamping jaws allow for the secure holding of various specimen geometries - from flat and angular test pieces to round or very small specimens.
The optional manual X-axis slide shifts the sample laterally, enabling multiple scratch tracks on one specimen – ideal for comparisons and small test series.
QpixControl2 is more than just a user interface: The software combines a patented 3D user concept with a seamless scratch workflow. Tests can be easily created, scratch marks visually positioned, single measurements processed automatically, and relevant Lc events evaluated in a structured manner. From test definition through image capture and evaluation to data management, export, and standardized reporting, all steps remain integrated within an intuitive software environment. This reduces operational effort, supports reproducible processes, and enables the efficient use of scratch testing in production-oriented quality assurance.
The sample holder is automatically moved to the correct height, and the sample image is automatically captured.
Drag and drop the starting point of the scratch test directly to the desired position.
The test sequence is fully automatically and in accordance with the Scratch test standards. Subsequently, the failure events can be evaluated and assigned to the respective Lc points.
Single or multiple measurements: Scratch marks can be positioned directly in the software, created with a defined offset, and processed automatically. The Lc results are evaluated for each test as well as as a series mean.
Load definition, crack length, load rate, speed, and lens selection are managed directly within the method. For evaluation, standardbased templates or custom templates can be used and supplemented with limit and target values.
Graphical templates support the consistent classification of typical failure events. This facilitates standard-based procedures and reduces room for interpretation.
The force-distance curve documents the applied load along the scratch track. Anomalies in the curve can be compared with visible failure events and used for Lc evaluation
Relevant failure events along the scratch track can be viewed in detail in the image and assigned to the corresponding Lc details. This transforms the visual assessment into a verifiable test result
Test parameters, scratch track, Lc values and evaluation results are compiled into a test report. This simplifies documentation, the comparison of test series, and the dissemination of results within the quality process.
The optional Qpix Inspect modules expand the Qscratch 20 with practical functions for coating evaluation. Crater-grinding supports microscopic coating thickness measurement in accordance with DIN EN ISO 26423, while the Rockwell adhesion test enables qualitative adhesion evaluation of ceramic coatings in accordance with DIN EN ISO 26443. This allows additional information on coating quality to be captured, evaluated, and documented directly within the familiar QpixControl2 software environment.
Crater-grinding method for microscopic coating thickness determination as supplementary information for coating evaluation in accordance with DIN EN ISO 26423.
Rockwell indentation test for qualitative adhesion evaluation of ceramic coatings in accordance with DIN EN ISO 26443.
直观和用户友好的Qpix INSPECT分析软件为显微测量和结果文档提供全面的工具箱。该多功能软件可以根据客户自定义的测量任务进行定制并补充附加模块。
所有配备QpixControl2和QpixT2软件的QATM硬度计都可无缝集成到Verder Scientific物联网平台中，提供增强的功能和无缝连接。
Qconnect是Qness Qpix Control2软件中的界面，包含从组装生产线，打开XML界面（双向）和预定制插件方案比如QDAS插件，直到客户定制连接解决方案被QATM完整执行的组合。针对每种应用需求，我们都有专业的解决方案。
Test results, Lc results, scratch track information, and test parameters can be documented in a structured format and exported. Standardized test reports and flexible export options facilitate the transfer of results to quality assurance, documentation, or higher-level systems.
Qpix软件平台支持条形码和二维码阅读器。无论是简单插入头文件（序列），管理用于模板自动选择的读取装置的完全整合，或从上级系统（选配）中调用数据-条形码/二维码阅读器都简化了硬度计的工作程序，同时也防止了操作错误。
Qpix Control 2软件支持用户通过外部NFC读写器登录。举例来说，根据NFC标签/卡，客户现有的门禁卡也可以被编入程序。
| 测试力范围 | 0.5* - 200 N |
| Constant load | Single measurements |
| Progressive load | Single measurements |
| Z轴 | Dynamic, automated (CAS-Technic), Travelling distance Z 150 mm (5.91“) |
| 转塔 | 8-fold motorized tool changer (max. 3 testing modules, max. 7 lenses) |
| 基本设备包含 | Rockwell diamond; 20x, 50x Lenses |
| 物镜类型 | Standard (Achromat) and High Quality (Semi-apochromat) for hardness testing and microscopy |
| 全景相机 | - |
| Cross slide | Motorized Y axis |
| 载物台尺寸 | 150 x 120 mm (5.91 x 4.72") |
| 定位精度 | Y-axis +/- 0.2 µm |
| 行程 | Y 150 mm (5.91") |
| 控制元素 | Emergency stop, Start button, Joystick Y/Z |
| 最大允许工件重量 | 50 kg (110 lbs) |
| 主机重量 | 58 kg (127.9 lbs) |
| Optional | Qpix Inspect Module |
* 0.5 N and 1 N > 1% accuracy
