MIT Folding Endurance Tester

       PN-NZ135F MIT Folding Endurance Tester is a paper folding resistance tester developed according to the national standard GB/T 457 and ISO 5626. It is suitable for testing the folding resistance of paper, cardboard and other sheet materials with a thickness of less than 1.25mm.  MIT fold resistance is the logarithm (base 10) of the number of double folds when the paper sample is broken under standard tension conditions. Folding resistance has a great impact on the flap of the carton. Some cartons often have the flap broken, which affects the outer packaging of the product.
       The tester is a mechatronic tester. The mechanical part includes a motor transmission part and a tension mechanism part. In terms of mechanical transmission, the connecting rod is controlled by the motor to control the clamp to rotate left and right by 135 °. The speed of the motor is controlled by a governor and a circuit. The tension mechanism deforms the spring by pressing the tension lever. The spring tension formed exerts a force on the paper sample to be tested, and the tension acting on the sample is adjusted between 4.91N and 14.72N. The tester can count the double folding times of the tested paper sample through the detection of the photoelectric circuit, and automatically stop when the sample breaks. At the same time, the tester also realizes the automatic return of the folding clamp through the detection of the photoelectric circuit. It is suitable for measuring the folding resistance of various paper and cardboard, and is an ideal testing equipment for industries and departments such as papermaking, packaging, scientific research and product quality supervision and inspection. 

1. Power supply: (100~240)VAC 2A  50/60Hz
2. Measuring range: 1～99999 times
3. Folding endurance(logarithm): 0~4.99
4. Folding angle: (135 ± 2)°
5. Folding speed: (175±5) times per minute
6. Sample width: 15 ± 0.1mm
7. Tension Force: (4.91～14.72)N
8. Folding opening crack distance: 0.50mm,0.75mm;0.25mm, 1.00mm, 1.25mm
9. Arc radius of the fold: (0.38±0.02)mm
10. Display: 7” Touch screen
11. Printer: thermal printer
12. Output: RS-232 serial data/ USB ( optional)
13. Environment: temperature (20±10)℃, relative humidity＜85％
14. Dimension: (240×350×560)mm， (L×W×H)
15. Net Weight: About 20.0kg.

1. Adopt new module circuit design, with WIFI Internet of Things function. After networking, the test results can be saved to the cloud server, and through the dedicated PN-QMS series quality management system, data query, management, report, big data analysis statistics, and visual large-screen display can be carried out.
2. The spring tension is adjustable, and the preset parameters can be tested with one key;
3.  Display the number of folds and the logarithm of folding;
4.  Fully automatic measurement, intelligent judgment function;
5.  Using stepper motor control for more precise folding speed;
6.   Integrated chuck with standard R angle for higher accuracy;
7.  The folding chuck of the instrument is automatically reset after each experiment, which is convenient for the next operation;
8.  Optimize the test program to achieve rapid testing and improve testing efficiency;
9.  It has the function of column chart display, which is convenient for the reference of test results;
10.  Optional: It can be connected to special computer test software to display test data in real-time, store and query massive test data, manage, analyze, count, report, and other functions.

GB/T 457、QB/T 1049、ISO 5626、TAPPI T511

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