Scratch Tester

The KK02,03 Scratch Tester uses a rigid pin to scratch such targets as film, plastic, automotive interior and exterior material, and coating material to evaluate the target’s scratch resistance (scratch characteristics).

Standardized increased load scratch testing can be conducted in accordance with ASTM and ISO* guidelines.
This testing allows for the utilization of coating material research and flaw occurrence mechanism analysis, enabling quantitative assessment of scratch characteristics.

● Calculation of scratch coefficient of friction

This device is capable of calculating scratch coefficient of friction, a physical quantity directly related to surface damage, which can help in clarifying the structure of a scratch.

● Teaching function

This feature can be used to perform initial configured testing and ultimate load indentation testing. Performing these tests prior to actual testing allows the load range to be set quickly.

● Suspension function

Even for samples with an uneven surface that make scratch evaluation difficult, such as textured surfaces, this feature makes testing possible without compromising linear load increase capabilities.

Measurement Sample Example

  • Film
  • Plastics
  • Automotive interior/exterior material
  • Coating material


Scratch Tester
System Configuration Diagram / Measurement Data

Sample Measurement Software Screens

Scratch Tester
Dimensions/Weight (approx.) W545 × D455 × H680 (mm) / 65 kg
Power source 100 VAC, Max. power consumption: 60 W
Measurement environment temperature and humidity 10 to 40°C / 30 to 70% RH (No condensation.)
*Installation should be in a location with minimal influence from wind or vibrations.
Measurement operation Measuring method: Increased load type
Scratch direction: From left to right
Scratch load detection Detector: Load cell
Vertical load: (KK02) 1 to 50 N, (KK03) 0.1 to 5 N
Horizontal load (max.): (KK02) 50 N, (KK03) 5 N
Accuracy (full scale): ±0.5 or less
Scratch distance detection Detector: Linear encode
Distance (max.): 200 mm
Scratch rate 1 mm/sec to 200 mm/sec
Depth detection Detector: Laser displacement meter
Data communication Data transfer: USB
No. of measurement result points: Approx. 1000
Specimen size Dimensions: 60 mm × 220 mm, Thickness: 5mm (max.)
*ASTM: D7027-05 / ISO: 19252
This device is manufactured and sold under license by Kato Tech Co., Ltd., from U.S. Surface Machine Systems, LLC. (Patent No. 7302831).
*Specification details recorded here are subject to change without notice. We appreciate your understanding.
Scratch Tester
Tip lineup
To handle a wide variety of evaluations with varying types of damage (gloss scratches, scaling, cutting damage, etc.), Kato Tech offers a variety of tips in addition to the standard ⌀1 mm tip. Kato Tech also offers tip customization to fit customer testing requirements.

*Only ⌀1 mm tips are ASTM- and ISO-compliant.

  • ⌀1 mm (standard)

  • ⌀0.5 mm

  • ⌀2 mm

  • ⌀5 mm

  • Barrel tip


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