The cast iron BT-21 units use the Mullens method to determine the bursting strength of paper, board and corrugated board for quality control and R&D purposes.
The exclusive interactive software offers options to a basic or complete test.
During the testing process, the wide LCD screen displays a graph of the evolution of the test. Once testing is complete the maximum strength of the sample material is displayed automatically.
There are two models available:
BT-21P = Paper
BT-21C = Board & Corrugated Board