What is a MIT Type Paper Folding Endurance Tester GT-N16–A Complete Guide-gester-instruments.com

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What is a MIT Type Paper Folding Endurance Tester GT-N16–A Complete Guide March 21 , 2025

What is a MIT Type Paper Folding Endurance Tester GT-N16–A Complete Guide

Paper products are folded or bent many times during daily use, such as book flipping, box folding, print processing, etc. The MIT Folding Endurance Tester evaluates the folding resistance of a material under a certain tension by simulating the folding stress of paper products in real applications. Next, we will take a closer look at the Paper Folding Endurance Tester GT-N16.

What is the MIT Folding Endurance Tester

Paper Folding Endurance Tester GT-N16 is a high-precision paper and cardboard folding resistance testing equipment, with a number of functions such as parameter testing, conversion, adjustment, display and memory. Paper Folding Endurance Tester is compact, lightweight and feature-rich, with horizontal design and stable performance, so the tester is suitable for different papers and cardboards.

Mit Paper Folding Endurance Testing Principle

The working principle of the folding endurance test for paper is based on the mechanics of materials and the analysis of the physical properties of paper, and the testing process is as follows:

The paper or cardboard sample is fixed in the clamping device of the tester.

A certain amount of tension is provided by a spring system, which causes the sample to be folded under controlled tension.

The Mit Paper Folding Endurance Tester 's folding device performs reciprocal folding to simulate the stresses on the paper or cardboard in actual use.

The sample is subjected to constant folding stresses and eventually breaks due to fatigue, and the tester records the total number of folds endured.

Test data is usually expressed in two ways:

Number of folds - a direct record of the number of folds the sample can withstand during the test.
Logarithmic value of the number of double folds (base 10) - mathematically expresses the folding resistance data, which is more suitable for laboratory analysis and comparative studies.

The higher the folding resistance value, the stronger the folding resistance of the material.

MIT Folding Endurance Tester Technical Parameters

The main technical parameters of GT-N16 folding endurance tester paper are as follows:

Measuring range: 0 - 99999 times
Folding Angle: 135±2
Folding frequency: 175±10 times/minute
Folding head width: 19±1mm
Folding radius: 0.38±0.02mm
Spring tension: 4.91N~14.72N, every increase of 9.81N tension, the spring compression is reduced by at least 17mm.
Folding mouth gap: 0.25, 0.50, 0.75, 1.00mm (four ranges)
Change of tension force caused by eccentric rotation of clamping folding head: ≤0.343N

Conformity standards

The Mit Paper Folding Endurance Tester GT-N16 complies with a number of international and domestic test standards, including:

ISO 5626 (International Standard for Paper Folding Resistance Testing)
GB/T 2679.5 (China's national cardboard folding resistance test standard)
QB/T 1049 (Light Industry Folding Resistance Test Standard)
ASTM D2176 (American Society for Testing and Materials standard)

These standards ensure that the GT-N16 folding endurance test for paper's test results are accurate, repeatable and able to meet the quality control needs of different industries.

How to Operate Mit Paper Folding Endurance Tester

Acceptance

Check accessories: 1 set of wrench, 4 sets of clamps, 3pcs of weights.
Confirm power supply and connect, turn on the power switch.
Adjust the machine level according to the level meter.

Operation

Mounting the specimen:
According to the thickness of the specimen, select the corresponding fixture and mount the fixture on it.
Reset the fixture and start installing the specimen.
Fix the specimen.

Install the weights.

Parameter setting:
Click “SETTING” , there are two modes, “Counter” and “Timer” mode, select the “Counter” mode, set the counting times.
Set the speed, click “TEST” to return to the test interface, click “Zero” to clear, click “TEST” to start the test.
The test will automatically stop when the test is completed, and it will also stop when the specimen breaks during testing.

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