Bekk Smoothness Tester

For the determination of smoothness on paper and board according Bekk method. Bekk smoothness testing is an especially informative technique for determining the smoothness of a sample. FRANK-PTI has developed this measurement principle using high grade materials and precision measurement technology, and it has been trusted by the industry for decades. The ModularLine Bekk smoothness testing device delivers outstanding results, and by extending the measurement area, very smooth samples can be tested within a reasonable time. The automatic prediction is available after just 10 seconds, with informative results.

Test Description

After inserting the sample and the start of the test sequence, the test mechanism lowers. It then presses on a rubber platen, which presses the sample against a glass platen with a defined force. The integrated vacuum pump lowers the pressure in the system to 50.7 kPa. The device then records the amount of time required until the pressure difference with the surroundings is exactly 48.0 kPa. The time measured is given in Bekk seconds. With very smooth samples, the measured volumes can be altered using the software to 1/10 or even 1/20. This reduces the measurement duration to 1/10 or 1/20.