Overview
Paper MIT Breaking Tester (Model: NBC-DJ5637) is an instrument used to evaluate the bending performance of paper, which can measure the durability and breaking strength of paper during repeated bending. This machine specializes in testing the bending strength of paper and Cardboard. By fixing both ends of the test piece, applying a specific tension and bending back and forth until the test piece breaks and automatically records the number of folds.
Features
1. Touchscreen operation, easy to control.
2. With a dual-station (2-station) design, two sets of tests can be performed simultaneously.
3. Accurate bending angle, 135 ° +/- 2 °.
4. The folding speed is stable at 175 +/- 10cpm.
5. Wide range of counters, up to 0 to 9999999 times.
6. Provide a variety of test load options (4.91N, 9.81N, 14.72N) to adapt to different test requirements.
Principle
The Working Principle of this instrument is to fix the two ends of the test piece to the upper and lower clamps respectively. The lower clamp applies a set load to the test piece to make it bear a certain tension. In the vertical state of the test piece, the lower clamp bends back and forth to the left and right sides at an angle of 135 degrees until the test piece breaks, and the instrument automatically stops and records the number of bends to evaluate the bending strength of the material.
Applications
Paper folding performance testing, Cardboard folding performance testing
Standards
MIT-style folding test standard
Steps
Prepare a test piece that meets the size requirements (approximately 15mm wide and 250mm long).
2. Fix both ends of the test piece in the upper and lower clamps of the instrument respectively.
3. Set the required test load (4.91N, 9.81N, or 14.72N) through the Touchscreen.
4. Start the instrument, and the lower fixture begins to bend the test piece back and forth at a 135-degree angle.
5. The instrument runs automatically until the specimen breaks, and the final number of folds is recorded.
6. Read the number of times displayed by the counter as the result of the folding strength test.
Notice
* Before use, please confirm that the Power frequency is AC220V and ensure good grounding.
When installing the test piece, ensure that it is firmly fixed in the upper and lower clamps and is in a vertical state.
* The accuracy of the bending opening (the radius of the folding opening is 0.38 +/- 0.02mm, and the gap distance is less than or equal to 1.0mm) has an impact on the test results, and the calibrating needs to be maintained regularly.
During the test, do not touch moving parts to avoid danger.
* The instrument weight is about 30kg, so pay attention to safety when moving or installing.
Please select the appropriate test load according to the test standards and requirements.
