The PaperSchmidt is the first rebound hammer designed specifically for roll hardness testing. A new measuring principle and a high compliance plunger provide roll-profiling accuracy and repeatability that was unachievable before now!

Extensive field testing at manufacturers and converters in Europe and the USA prove that the PaperSchmidt provides profiling accuracy and repeatability to a degree far beyond that of instruments previously used in the paper industry. The PaperSchmidt even surpasses Proceq's own Schmidt Hammer and ParoTester in terms of accuracy and repeatability.
 
 

The PaperSchmidt offers all the tools you need for rapid roll profile assessment. The language independent display provides all key parameters required for assessing a roll profile at a glance. On completing a measurement the key data is instantly available: Mean roll hardness, range (max-min), standard deviation and number of impacts. This "max-min" function is a rapid way to check if the roll hardness profile is within a pre-defined tolerance. Impacts which exceed these limits will 'blink' on the display.

Roll hardness testing in the paper industry typically puts heavy demands on the usage of rebound hammers. In the past, this has led to high maintenance costs. The sealed construction of the PaperSchmidt and its unique measurement system provide longer periods between servicing requirements far in excess of traditional rebound hammers. Mechanized durability tests have proven the PaperSchmidt to be able to perform in excess of 100’000 impacts without the need for recalibration.

The Windows based software Paperlink, developed by Proceq SA, makes it possible to download, present and edit data measured by the PaperSchmidt in a fast and easy way using a PC. This allows the user to quickly check the roll profile against user defined tolerances. It also allows the user to define roll identifier names for batch testing and download these onto the hammer. All data can be exported to third party applications.