L&W Tearing Tester

An easy-to-use, modern paper strength testing instrument delivering accurate and repeatable results

Following the pioneering spirit made famous in the lab paper testing industry by the Lorentzen & Wettre, ABB brings the latest modern conveniences and enhancements in our fully updated L&W Tearing Tester. 

It offers mills the best features for automation, digitalization, and operator safety, providing an easy-to-use system with accurate and repeatable results.  
Following the pioneering spirit made famous in the lab paper testing industry by the Lorentzen & Wettre, ABB brings the latest modern conveniences and enhancements in our fully updated L&W Tearing Tester. 

It offers mills the best features for automation, digitalization, and operator safety, providing an easy-to-use system with accurate and repeatable results. 


Focus on safety 

Operators are better protected with two-hand operation requirement, which keeps the operator away from the pendulum and knife during operation and pendulum swing path safety guard to protect the operator from the path of the pendulum swing without interrupting the swing or slowing down the test. 

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Fully automated 

The L&W Tearing Tester handles most of the work with limited operator involvement.

  • Automatic clamping and notch cutting of test piece
  • Fast and automatic pendulum release, catch and retraction
Watch new features in action

Easy operation

  • Pendulum with interchangeable weights to quickly adapt for different grades
  • Two check weights for easy instrument calibration check 
  • User-friendly touchscreen 

Digitalization

  • Ethernet connection

About the method

L&W Tearing Tester measures tearing resistance according to the Elmendorf method. An initial cut is made in a test piece, which is then torn out­ of­ plane through a given distance using a pendulum. The work done in tearing the test piece is measured as the loss in energy of the pendulum.
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