Automatic scratch tester

Automatic scratch tester

Automatic scratch tester - SAAST520/2

Scratch tester is a measuring instrument mainly employed to assess coating hardness using scratching resistance approach.

Scratch tester procedure involves the generation of a controlled scratch with an indenter on a selected area. A stylus is moved over a specimen surface with a linearly increasing load until failure occurs at critical loads. According to test procedures, constant or progressive load can be applied in order to get different levels of failure. The load at which such failure of the coating occurs is termed as the critical load.

Scratch test is one of widely used methods to obtain the critical loads related to adhesion properties of coating.


Additional Features:

- Working table can be moved left and right, making it easier to measure different areas in the same panel
- Sound-light alarm system for puncturing through sample panel
- High hardness material needle



Modello / Model



ISO 1518-2 ; EN 13523-12
AS/NZS 1580.403.1

Punta / Stylus

Coned sapphire or diamond

tip radius 0,03 mm

Pesi / Weights

Variable loading

0 ~ 50 g ; 0 ~ 100 g ; 0 ~ 200 g

Corsa / Working distance

100 mm

Velocità della punta / Stylus speed

10 ± 2 mm/s

Angolo di applicazione / Scratch angle


Dimensioni massime del pannello

Maximum panel size

200 x 100 mm

Spessore massimo del pannello

Maximum panel thickness

< 12 mm

Potenza motore / Motor power

60 W


Power supply

220 Vac

Dimensioni / Dimensions

500 x 260 x 340 mm

Peso / Weight

17,5 Kg



Dotazione Standard / Standard Supply:
Unità centrale / Main unit
Puntale / Stylus
Pesi / Weights
Manuale d’uso / User’s manual

Accessori Opzionali / Optional Accessories:
Certificato di taratura / Calibration report

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