Automated Scratch Tester

Oct. 15, 2018
Fischer's scratch tester checks adhesion and cohesive strength of layers ?1 ?m thick.

An automatic scratch-test system for characterizing hard material layers, the FISCHERSCOPE ST200 is a progressive load scratch tester for analyzing the adhesion and cohesion strength of coatings according to ASTM C1624, ISO 20502, and DIN EN 1071-3. Easily check the adhesion and cohesive strength of layers ?1 ?m thick. The instrument is ideal for use in development, quality assurance, incoming goods control, and production monitoring.



Measuring Head

Normal Load Range:

1 to 200 N

Load Resolution:

6 mN

Minimum Contact Load:

0.5 N

Friction Measurement Module

Maximum Load:

200 N


6 mN

Acoustic Emission Sensor

Resonance Frequency:

100 kHz ±20 %
Maximum amplification 1,000,000 x

Dynamic Range:

73 dB ± 3 dB

Microscope-/ Camera Magnification


5x, 20x

Video picture (Field of Vision):

2688 x 2150 µm, 672 x 538 µm


Color 1280 x 1024 pixels

Light Source:



Sample Stage


Programmable XY-stage,
motorized z-axis

Stage Dimensions:

100 x 100 mm

Repeatability Precision X/Y:

? 1 µm

Stage Speed (Scratch Speed):

0.4 - 600 mm/min

Maximum Travel:

45 x 190 mm

Maximum Specimen Height:

100 mm


External Dimensions (Height x Width x Depth):

630 x 650 x 610 mm


100 kg

Environmental Conditions

Operating Temperature:

Climatic chamber class 3: 15 to 40°C / 59 to 104°F

Storage/Transport Temperature:

Climatic chamber class 2: -20 to 55°C / -4 to 131°F

Admissible Air Humidity:

? 80 %, non-condensing


  • Various measurement modes: constant load, progressive load, incremental load
  • Three analyzing methods: optical microscopy, friction force measurement and acoustic emission measurement
  • Motor driven XY-stage and Z-axis
  • Measurements on curved surfaces with motion feed-back control
  • Automatic image scan of the whole scratch
  • Diamond indenters of various geometries
  • Optical filters for contrast improvement
  • Integrated electronics, no external control unit necessary
  • Two microscope objectives, optional: four additional objectives
  • Data and image capturing over the whole scratch length
  • Easy creation of test reports
  • Optional: customized sample holders
  • Item No. PA-F605812