We are the inventors and manufacturers of the “Semmler Roller”. Dynamometers all over the world are equipped with our roller. More than 1500 truck workshops from Germany to Dubai trust our calibrated measuring technology. Semmler GmbH is officially commissioned by the Ministry of Transport to authorise workshops for tachograph testing for 25 years. We have also built up a network of more than 500 test centres in Europe.
Founded 50 years ago as a truck workshop, the family-run business is today being run by the third generation. We set the standard with precision. Quick and accurate. And of course, Made in Germany.