How does a torque tester for PET bottles work?

Reviewed by Anurag Mishra (Sr. Technical Consultant)

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The PET industry is one of the most rapidly growing industries in the world. And with the increasing demand for PET products, the need for better quality control is also on the rise. A torque tester is one of the most widely used lab testing instruments in the PET industry. This testing instrument will help to determine the opening and closing torque of bottle caps. If you are working in the PET bottle industry, then testing the opening and closing torque of these bottles will help you to assess the product quality. We at Testronix have designed a high-quality torque tester digital model that is used to calculate the force required to open closed PET bottles. Besides this, it can be used to measure the torque or twisting force exerted by screws, bolts, and other fasteners. Here in this blog, we are going to provide you with information about the Testronix torque tester and how it works. But before, let us focus on the use of torque testers in the PET bottle industry. So, let us get started!

Use of torque tester in the PET bottle industry

Torque testing is considered to be an important method of assessing how well an object will behave when a rotating force will be applied to it. Testing the opening and closing strength of PET bottles is important to ensure that the bottles will not open easily and the contents will not spill out.  

Testronix will provide both digital and torque-tester touchscreen models. There are many reasons why a torque tester is needed in the PET industry. One of the most important reasons is that it helps to ensure that products are assembled correctly and with consistent quality. Incorrectly assembled products can cause safety issues and may not function as intended.

By using a torque tester, manufacturers can avoid these problems and ensure that their products meet all safety standards. Another reason why a torque tester is essential in the PET industry is that it can help to improve productivity. By using a torque tester, manufacturers can quickly and easily identify assembly errors. This can help to reduce production time and costs. If you are involved in the PET industry then testing torque is an important step of the quality control process.

In the PET industry, torque testers are used to measure the amount of torque required to open and close a bottle cap. This information is used to determine the suitability of the cap for its intended use. The PET bottle that requires a high amount of torque to open and close may not be suitable for use with a product that is easily spilled or leaked. Now, let us discuss how the Testronix torque tester will help you to deliver quality multi-way plastic bottles.

All about Testronix torque tester

The torque tester is one of the important lab testing equipment used in the bottle industry. This quality testing equipment is helpful in testing the torque value of the product and ensures that quality material will be delivered to your customers. Testronix has designed a high-quality digital model of torque tester that has been equipped with advanced features like strong clamping pegs/holders for zero slip gripping support, and an adjustable clamping mechanism to hold the different sizes of bottles efficiently. This quality lab testing equipment can store 9 sample readings with the digital readout.

This Testronix torque testing machine has been provided with user-friendly controls that make it easy for product manufacturers to conduct torque tests on the materials. You can read more on the importance of torque testers in the bottle testing industry.

What are the benefits of torque testers in the PET industry?

The torque tester is an important lab testing instrument in the PET industry because it helps to ensure that products are consistently manufactured to the highest quality standards. By measuring the torque required to turn a cap, manufacturers can verify that their products meet the specified torque requirements. This helps to ensure that products will function as intended and will not fail prematurely due to poor assembly.

The torque tester can also be used to verify that bottle caps are tightened to the correct level of tension. This is important because over-tightening can lead to damage or breakage, while under-tightening can allow components to loosen and come apart. By using a torque tester, manufacturers can avoid these problems and ensure that their products are safe and reliable.

In addition to its quality control applications, the torque tester can also be used for product development and testing. By measuring the torque required to turn a screw or bolt, engineers can determine the optimum design for a given application. This information can then be used to improve the design of future products. You can even test the opening and closing torque of regular screwed bottles.

Overall, the torque tester is a valuable tool for any company that manufactures products that require bottle caps for opening and closing. By using this testing instrument, bottle manufacturers can improve quality control, reduce assembly problems, and optimize product designs.

Working of Testronix torque tester

If you want to conduct a bottle torque test with the help of Testronix torque tester, then you can follow the steps mentioned below.

  • Plug in the mains plugs into a 3 Pin - 5 Amp. Power supply socket. Turn the mains Switch on.

  • Set the pressure to zero and press the TARE button. Now the Load Indicator will show zero reading.

  • Put proper placement of the sample and after placing the specimen then tighten the jaw and adjust the knob properly by revolving it in a clockwise direction.

  • In this way, you can easily commence the test.


Torque testers are used in the PET industry to measure the tightness of fit for neck and cap threads on bottles. They are also used to test another packagings such as caps, lids, and screw-on pump assemblies. Torque testing is essential in quality control for the bottle industry because it ensures that customers will be able to safely open and close containers without leaking or spillage. If you want to know more about this quality testing instrument then you can 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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