The BT-21 determines the bursting strength for the quality control (QC) and research and development (R&D) of paper, board and corrugated board. The modern design is ideal for the use of light and resistant materials, it also offers user friendly and secure operation. The BT-21 features steel frame body, strain gauge pressure transducer, pneumatic clamping system for the sample, built-in hydraulic system for the diaphragm, quick connector for calibration, built-in electronics and exclusive testing software.
The built-in software offers options for a complete or basic test. The complete test presents options to statistical calculation, calculation of bursting strength, index and absolute strength. During the test the wide LCD display shows a graphic of the evolution of the test and after its conclusion indicates automatically the maximum strength of the tested material. Also available is the option for memory storage of results, search function by date, operator or material and thermal printer.
The burst test measures the burst resistence strength of most flexible materials including paper, paperboard, textiles, nonwovens, foils and plastic films.
Two Burst Strength Tester Models:
- BT-21P (70 to 1300 kPa)
This tester is ideal for testing paper and lightweight material.
430 kPa clamping pressure
Applicable standards: ISO 2758, TAPPI T-403
- BT-21C (from 350 to 5500 kPa)
This tester is ideal for testing paperboard, corrugated board, and heavy-weight materials.
690 kPa clamping pressure
Applicable standards: ISO 2759, TAPPI T-807, TAPPI T-810
Note: this instrument has replaced the MTA-2000 Burst Strength Tester.