How to Test the Edge Crush Strength of Corrugated Boxes?

Reviewed by Anurag Mishra (Sr. Technical Consultant)

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The corrugated box is the primary packaging medium for most of the transportation industries including e-commerce. The stacking strength of corrugated boxes is a crucial parameter that decides the box performance in transportation. Compressive strength or crush resistance is the ability of a corrugated board to resist crushing forces. Edge crush strength is considered to be an important parameter for determining the quality of corrugated boxes. Thus if you are working in the paper and packaging industry, it is important for you to test the edge crush strength of corrugated boxes.

We at Testronix offer a high-quality edge crush strength tester that is used to test the edgewise crush strength of corrugated boxes. This is one of the high-quality lab testing instruments that is used to test the edge-wise compression strength of corrugated boxes. In this blog post, we will discuss how you can easily test the edge-wise compression strength of boxes with the use of Testronix ECT tester. We will also discuss the importance of testing the edge-wise compression strength of corrugated boxes.

Why is it important to test the edge crush strength of corrugated boxes?

When it comes to packaging, boxes made of corrugated cardboard are one of the most commonly used materials. That's because they're strong, lightweight, and relatively inexpensive. But just because corrugated boxes are strong doesn't mean they can't be damaged. In fact, if they're not properly tested against compressive forces, they can easily be crushed. That's why it's so important to test corrugated boxes against compressive forces. By doing so, you can ensure that your boxes will be able to withstand the pressure of the materials inside them.

Not only will this protect your product from damage, but it will also give you peace of mind knowing that your packaging is up to the task. You can easily conduct an edge crush test with the use of Testronix edge crush tester. You can read more about the importance of conducting an edge crush test on corrugated boxes.

Now, let us discuss brief information about Testronix ECT testers.

All about Testronix ECT tester

When it comes to corrugated boxes, compressive strength is one of the most important performance characteristics. That’s because boxes are often subject to compression during storage and shipping. A box that can withstand high levels of compression is less likely to be damaged or crushed, ensuring that your products arrive at their destination in perfect condition. Testronix is a leading manufacturer of edge crush testers and provides this quality lab testing instrument at the best and most affordable prices.

The digital model of this quality lab testing equipment has been made in accordance with industrial standards that includes IS 7063.

Users can easily perform accurate lab tests by using this quality lab testing equipment. Besides this, users can also conduct different quality tests on the materials that include:

1.    Edge crush test

2.    Ring crush tester

3.    Flat crush test

By conducting these tests, one can easily ensure that quality products will be delivered to the customers with ease. Users can easily read more about the significance of edge crush tests in the packaging industry.

Steps to perform edge crush test on materials

To perform an edge crush test on the materials, one can easily follow the steps mentioned below.

  • Plug in the main socket and place the specimen in the fixture between the compression plates.

  • To perform the edge crush test, place the edge crush test fixture with the erected edge of the specimen facing the upper compression plate.

  • After placing the specimen correctly, press RESET and TARE to set the value at the peak load indicator to zero.

  • After setting the zero on the load indicator, turn the rotary switch to the UP direction.

  • This will move the lower compression plate in an upward direction exerting a compressive load on the specimen.

  • After the lower compression plate starts compression of the specimen, there will be an increase in the value of the load indicator.  

  • After a certain increase in the load value, the value on the load display will decrease after there is a deflection in the specimen.

  • After there is a decrease in value, turn the rotary switch to the off position to stop the machine.

  • Once the machine stops, the display showing the load will return to zero and the deflection display will freeze.

  • Press the Memory switch on the load indicator to show the peak value.

  • Note down the values displayed on the load indicator.

In this way, you can easily test the edge crush test on the materials. You can easily conduct a free sample test on the samples by calling us at +91 9313140140 or emailing us at Our team of technical experts will consult you regarding all your needs and queries.

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