Test the crushing load of PET bottles with Top load tester

Reviewed by Anurag Mishra (Sr. Technical Consultant)

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In the packaging industry, the use of PET bottles has increased over the past few years. This is because they are durable and lightweight which makes them the top choice for most packaging manufacturers to deliver products to customers. But what if these bottles will not able to withstand the top load? It would lead to product failure and even loss to your customers. Thus, to overcome this issue, it is important for PET bottle manufacturers to test the top load strength of PET bottles. We at Testronix have designed a high-quality top load strength tester that will help to test the top load strength of PET bottles with ease. This high-quality lab testing instrument comes with a digital display that will provide you with highly accurate testing results.  

This quality test will also ensure that the bottle will not collapse under the high top load. In this blog post, we will explore why the top load strength test is so important for PET bottles, and how Testronix top load testing instrument can help to evaluate the top load strength of PET bottles.

What is the top load strength of PET bottles?

Top load strength is the measure of a bottle's ability to withstand top-loading forces. This includes the weight of the product plus any other external forces that may be exerted on the bottles. It is an important consideration in the design of PET bottles, as even a small increase in top load strength can have a significant impact on the overall durability of the container. The top load strength test involves placing a sample bottle on a flat surface and applying force to the top until the bottle collapses.

The results of these tests can be used to compare if you are producing good quality PET bottles. They can also be used to determine how much weight a particular bottle can safely hold without collapsing. The top load strength of PET bottles varies depending on the size and weight of the bottle. You can easily conduct the ultimate inspection of PET bottles with the help of a top load tester.

Why is it important to test the top load strength of PET bottles?

As we have discussed above that, the top load strength of a PET bottle is an important parameter to consider when designing PET bottles for the intended application.

By conducting top strength tests on PET bottles, the bottle manufacturers ensure that their products will be safe and not break or collapse when they are stacked over each other. It will also provide peace of mind knowing that their beverage will not spill or leak out due to a faulty bottle.

Thus, to make it easy for the PET bottle manufacturers to conduct top load test on the PET bottles, we at Testronix has designed high-quality top load testing equipment and ensure that quality product will be delivered to the customers. You can read more about the significance of top load testers in the PET bottle industry here. Now, let us discuss brief information about Testronix top load tester.

All about Testronix top load tester

When it comes to PET bottles, top load strength is an important factor to consider. This is because this strength helps to determine the amount of weight that a bottle can safely hold without collapsing or breaking. Top load strength testing is often performed during the manufacturing process of PET bottles, in order to ensure that they meet the required standards. Thus, we at Testronix have designed high-quality top load-testing equipment that plays a significant role in determining the quality of bottles delivered.

This testing equipment can test the top load strength of PET bottles with a maximum load range of 100 kgf. It comes with a digital and graphical display that makes it easy for PET bottle manufacturers to view the testing results accurately.

This digital model is available in 250kgf & 500kgf capacities as well. Besides this, it comes with a peak hold facility and other advanced features that will provide highly accurate testing results. You can also read 5 useful tips to test your products accurately with Testronix top load tester.

How to test the top load strength of PET bottles using a Testronix top load tester?

It is important to test the top load strength of PET bottles in order to ensure their quality. To ensure that your PET bottles can bear high stacking strength, manufacturers must test the quality of their bottles beforehand.

Below we have mentioned some easy-to-follow steps to test the top load strength of PET bottles.

  • To operate this lab testing instrument, plug in the main socket and place the PET bottles in between the compression plates.

  • You can easily make sure that the bottles should be placed in between the compression plates.

  • Once the specimen will be placed then you can bring the compression plates in the upper direction and add some preload on the PET bottles. This will help to avoid any gap between the compression plate and the bottle.

  • After that, bring lower compression plates in the upper direction and exert the preload on the bottle which will help to eliminate any air gap between the compression plates.

When all the above steps will be followed, you can easily commence the test. In this way, this lab testing instrument will work. You can read more about the testing procedure of a digital top load tester here.


It is important to test the top load strength of PET bottles because they are often used for storing and transporting liquids. If a bottle is not strong enough, it could leak or even break, which could lead to loss of product. By testing the top load strength of PET bottles, manufacturers can ensure that they are safe to use and will not possess any risks of damage. If you want to know more about this lab testing equipment then you can give us a call at +91 9313 140 140   or email us at info@testronixinstruments.com. Our team of technical experts will consult you regarding all your needs and queries.

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