Calotester kaloMAX NT II S3
Spherical cap grinder (Calotest device) for the determination of layer thicknesses
- Fast and easy layer thickness measurement
- Reproducible measurement of wear and scratching resistance
- Measurement of layer thickness
- Easy to operate
- For quality assurance and coating development
- Suitable for hard coatings, lacquers, plastic coatings
The ball crater test (Calotest) is a well established method for the determination of layer thickness. With a rotating steel ball and an abrasive slurry, a spherical cap is ground through the coating into the base material of the sample. When examined with a microscope, the layer/base material interface appears as a circle or, in case of a multilayer coating, a system of concentric circles. The layer thickness can be calculated from the diameters of these circles and the diameter of the grinding ball.
This purely geometrical method gives highly accurate results even for layer thicknesses in the range of micrometers.
Evaluation and documentation can be further simplified by the software kaloSOFT and a camera-equipped microscope.
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| Range of application: | |
| Layer thicknesses | Approx. 0.3 – 30 μm |
| Diameter of the spherical cap | Approx. 0.1 – 2 mm |
| Measurement accuracy | 1 – 5 % (dependent on surface roughness) |
| Characteristics: | |
| Ball diameter | 15 – 30 mm |
| Clamping range for plane samples | 50 mm |
| Clamping range for round samples | 3 – 30 mm (clamping jaw for other dimensions on request) |
| Cross table travel | 25 x 25 mm |
| Incline of sample level | 60 degrees |
| Revolution speed | 30-1000 1/min |
| Running periods | arbitrary |
| Input voltage range | 85 – 264 VAC |
| Input frequency range | 47 – 63 Hz |
| Dimensions | 300 x 295 x 235 mm (w / d / h) |
| Weight | Approx. 8 kg |
- Calotester kaloMAX NT II S3 with cross table
- Power supply
- Manual
- Detachable vice
- Laserpointer
- Grinding paste of various granulation
- Various microscopes equipped with high resolution cameras
- Evaluation software kaloSOFT
- All-in-one solutions
| kaloSOFT - Measuring of calottes | kaloSOFT software for measuring spherical caps |
Developed and produced by BAQ in Germany