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Products  > Testing Machines Inc. ZDT Tester Model 84–96

Testing Machines Inc. ZDT Tester Model 84–96

The ZDT Tester Model 84–96 is a complete Z direction digital tensile testing machine.    


Brought to you by Testing Machines Inc, our materials physical property testing brand, the ZDT Tester Model 84–96 is a complete Z direction digital tensile testing machine.  

Why is tensile strength testing important?

Tensile strength testing gives you the lowdown on the strength and capacity for elongation of the material being tested. It’s a very important step in the QA process, because it returns such a wealth of data.  

If you want to know that your finished product is fit for purpose and will be able to cope with the rigors of real-world applications, tensile strength testing is a must. 

Paper tensile strength testing methods  

The Z direction tensile strength test is a measure of the internal bond strength of paper or paperboard. It is particularly useful for measuring the internal bond strength of single-ply sheets. 

The Z direction test measures the tensile strength of a specimen which is sandwiched and compressed between two double-sided adhesive tapes. After compression, the ZDT test specimen is separated to determine the maximum force at rupture and delamination. 

Another common method of measuring the internal bond strength – or delamination strength – of paper and board is the ‘Scott’ type tensile strength test. This is a dynamic impact test based on the energy stored when a pendulum is released.  

Multi-purpose tensile strength testing 

Our tensile strength testing devices are useful for testing corrugating, printing, coatings or laminates.  

ZDT paper testing for paper mills 

If you’re involved in applying coatings or drying paper, then you’ll know that Z-Direction forces on the sheet can 

separate the fibers. Did you also know that paper sheets can adhere to the surface of a calendar roll causing Z-Directional forces on the sheet as well? 

Tensile strength testing touchscreen technology

The advanced touchscreen technology of our digital tensile testing machine uses clear icons to guide you through the settings and tests. This means that navigation becomes intuitive and less dependent on language expressed. 

Quality ZDT paper testing – as standard  

Our digital tensile testing machine was designed to support testing to the most stringent of international standards including:  

The Industrial Physics portfolio

Across the IP portfolio we make a wide range of cardboard testing products to inspect everything you need to know about your samples. 

The X250 Model High-Performance Single Column Tensile Tester 84-02 is a single-column, universal tester. It can be programmed with up to 100 different test methods ranging from the most basic to the most sophisticated. 

Then, if you need to work out the bending resistance of paper, paperboard, plastic film, medical tubing, and wire, check out the Bending Resistance Tester 79-56 from Testing Machines Inc.  

Industrial Physics insight 

We’ve learnt a thing or two about how to build innovative yet reliable paper and board testing devices. We like to share our knowledge with our customers and the industry. 

You may appreciate this article on the different types of tensile and pull testing equipment available. Or perhaps this piece – which delves into why tensile testing is so important – may be more useful to you? 

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Success Stories

The problem

Some paint manufacturers have to undertake so many different types of tests that it’s hard to stay on top of the demands of their industry and the changing technologies that can best support them.

The solution

This was the case for our valued customer. They needed the equipment, skills, experience, and collaboration of a genuine partner. One offering personalized support and guidance identifying the correct inspection solution for each situation. We are always delighted to help.

The outcome

Daniel Marschall, President of Marschall Labs, said:


“The professionals at Industrial Physics took the time to understand the specific testing equipment needs of our lab. I can’t say enough about the excellent customer service and support they provide.”

Spares and Accessories

Close View of TQC Circular Sample Cutters 22-42

Set of 5 circular plates for use with ZDT platen holders

Close View of TQC Circular Sample Cutters 22-42

Set of 5 square plates for use with ZDT platen holders

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