Contract manufacturing

We manufacture all the mechanical components for our measuring devices ourselves. Our excellent production facilities in the areas of turning & milling are also available to external customers. We have extensive experience in the automotive, industrial fittings, tool making, special machine and medical technology areas. Of course, if required, we also undertake the design of your components (SolidWorks).


Manufacturing contact:

Dipl.-Ing. Ronald Könnecke                                

Telephone: +49 3931 25273-14                                          

E-mail: fertigung(at)

Calibration & device service

Measuring devices must operate reliably. So that they do that, they must be regularly serviced and calibrated. ZORN INSTRUMENTS is a calibration facility approved by the German Federal Highway Research Institute (BASt) for the Lightweight Deflectometer according to test standard TP BF-StB Part B 8.4. Upon request we also calibrate according to the Austrian standard RVS 08.03.04. You can have your Lightweight Deflectometer calibrated and repaired in the same place.

We offer manufacturer calibrations for all the material test instruments we manufacture, and that for life.


Calibration and servicing of Lightweight and Medium Heavy Falling Weight Deflectometer

Calibration contact
Simone Lach
Telephone: +49 3931 25273-119
E-mail: vertrieb(at)