MIT bending resistance tester

Product Overview：

This MIT style flexural strength tester is a professional fatigue strength testing equipment designed for materials such as paper, cardboard, plastic film, wire, and flexible circuit boards (FPC). By adopting advanced microcomputer control technology, it is possible to accurately simulate the repeated folding process of materials in daily use. By measuring the number of folds before material fracture, its flexural fatigue resistance can be scientifically evaluated.

Standard basis:

GB/T457 、QB2679.5、ISO 5626

Test Principle：

Folding resistance refers to the number of double folds that paper or cardboard can withstand up to 135 degrees of reciprocating movement under a certain tension. It is expressed as the number of reciprocating folds or the logarithm of double folds with a base of 10. The number of times it is broken is recorded as the folding resistance.

Technical Specifications：

Measurement range	0~99999 times [logarithmic 0~lg4]
Folding angle	135 ° (15~180 °) ± 1 ° adjustable
Folding speed	175 ± 5 times/min (adjustable from 2 to 200 times/min)
Tension adjustment	4.91N、9.82N、14.73N
Standard clamp	spiral locking fixture with parallel position of the specimen
Upper clamping thickness range	(0.1~2.30) mm
Upper clamping width range	(0.1~16.0) mm
Upper clamping force area	7.8 * 6.60mm/51.48mm²
Upper clamping force torque	19.95:5.76-Wid 9.85mm
Parallel positioning height of sample	16.0mm
Folding clamp	tension change not exceeding 0.343N
Folding head width	(0.1~20.0) mm
Lower fixture clamping method	cylindrical rolling knob, more convenient for force clamping
Bend radius	0.38 ± 0.01mm
Reproducibility	10% (when 30T), 8% (when 3000T)
Fold temperature change	≤ 1 ° C, AFTER 4H
Sample length	≥ 140mm
Distance between upper and lower clamps	9.5mm
The distance between the folding seams	0.25mm、0.5mm、0.75mm、1.00mm
Human computer interface	5.0-inch color touch screen/dual system in Chinese and English
Print output	modular integrated thermal printer
Size and weight	300 * 300 * 450mm
Weight	30kg

pplications：

ZY-MIT135 bending resistance tester is widely used in the following industries:
Paper making and packaging: Evaluating the flexural strength of high-end cultural paper, cigarette cards, and cardboard box materials.
Flexible Electronics: Testing the bending fatigue life of FPC flexible circuit boards and conductive films.
Wire and cable: detect the mechanical properties of fine wires under repeated bending.
Plastics and Textiles: Evaluating the Durability of Various Films, Leather, and Specialty Fabrics.

Product Features：

7.0-inch touchscreen display allows for free switching between Chinese and English languages;
The instrument is equipped with various folding heads and weights, and can also be customized according to needs;
The horizontal and vertical directions, speed, angle, frequency, and tension can be adjusted;
Save initial settings during power outage, and automatically reset upon completion of testing;
Emergency button, which can control the process at any time in case of emergencies;
Fully automatic measurement, intelligent judgment function, automatic breakpoint shutdown to save data,
Independent ventilation and heat dissipation system, suitable for long-term fatigue testing of internal heat generation;
Can connect to a computer and automatically draw real-time test data curve graphs (optional)