How Top Load Tester Helps to Improve the PET Bottle Quality?

Reviewed by Anurag Mishra (Sr. Technical Consultant)

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PET bottles are widely used to store consumable goods. Therefore, it is very important for you to take a top load test for PET bottles so that they can withstand the compressive forces that occur during transportation, shipping, and storage. Thus, it is important for you to test the top load strength of these products. You can make use of a top load tester for bottles and jars available at Testronix Testing Instruments. This lab testing instrument will help you to evaluate the structural resistance of packaging material to the point of deformation or collapse. Here we will discuss how a top load compression tester is helpful in quantifying and improving the quality of PET bottles.

What is a top-load test and why you should conduct it?

Most of the PET bottle manufacturers face the challenge regarding the strength of bottles that whether their bottles can withstand the compressive forces or not. An additional challenge they face is regarding the strength of bottles during the capping process. Thus testing the top load tester for pet bottles will let you deliver your products without getting any damage.

PET bottles are used in different industries like pharmaceuticals, chemicals, beverages, and other related industries. Thus, it is important to maintain the integrity of these bottles as they are prone to damage and misconfigurations. Moreover, these are prone to damage during rough handling. In this case, testing the top load strength of PET bottles will help you improve your product quality.

The top load test is a type of quality test conducted for PET bottles that involves applying the compressive force in the downward direction and measuring its ability of compressive resistance to deformation. Thus, more and more businesses are focusing on delivering quality PET bottles that will help to quantify the PET bottle's quality and deliver the right products to your customers. These lab testing instruments are often installed in QC labs and production areas that are next to filling lines. We at Testronix are considered to be the leading top load manufacturers in Delhi NCR. Our computerized model of the top-load testing machine will not only helpful in evaluating the bottle quality but also provide accurate testing results with advanced features embedded in it. Thus you should try our top load tester, computerized model.

Below we have listed the features and technical specifications of the computerized model of this lab testing instrument.

Features of top load tester (computerized model)

The Testronix top load tester is an accurate instrument to test the crushing load of bottles (HDPE, LDPE & PET). The instrument is able to provide the peak load value at which the crushing took place. You can easily analyze the results with the help of a microprocessor installed on the computer. Here are the features you will get with a top load tester (computerized model).

  • Inverted straight plates for zero slip gripping support
  • Digital Display for accuracy and repeatability
  • Option for the user to switch off the machine in case of buckling of the test sample.
  • In-house calibration facility
  • Peak Load Hold Facility (save in memory)
  • Highly accurate test results under compressive force
  • Dimensions: 635 x 583 x1161mm
  • Overload protection set at 80% of max. load value
  • Computerized feature with a graphical test report
  • Test report of Force Vs time
  • Email test report facility
  • Report saving feature in the drive
  • Availability of the pass-fail report

Optional accessories

1. Speed drive/ speed control unit

2. Computerized software

3. Various load cell capacities i.e 250kgf & 500kgf

4. Safety glass fixture in case of glass bottle testing

Technical Specifications of top load tester (computerized model)

  • Max. Load Range: 100Kgf
  • Accuracy: ± 2% full scale (with master load)
  • Least Count/Resolution: 0.1 Kgf
  • Power: 220V, Single phase, 50 Hz
  • Display: Digital & Graphical
  • Peak Load indicator with Digital readout
  • Inverted straight Compression Plates – 1 set
  • Compression plate diameter- 180 mm ± 5mm
  • Available in 250kgf & 500kgf capacity as well
  • Computerized software inbuilt

Whenever you conduct the test with the help of a top load tester, then you need to make sure that you place the specimen accurately. You can read brief information about the role of a top load tester in the PET bottle industry.


Top load tester plays a crucial role in determining the strength and quality of PET bottles when they are subjected to extreme load. Thus, by using this lab testing instrument, you can easily increase the chances of delivering an accurate product to your customers. You can test the top load strength of PET bottles by following some simple steps. If you find any difficulty in conducting the test, then give us a call at +91 9313 140 140 or email us at Our experts will get in touch with you to assist you regarding all your queries.

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