Overtravel

This article or the following section is not adequately provided with supporting documents ( e.g. individual evidence ). Information without sufficient evidence could be removed soon. Please help Wikipedia by researching the information and including good evidence.

The overrun is the distance that the mobile platen of a hydraulic press covers after an emergency stop has been triggered. This distance is determined with an overtravel distance measuring device. The distance covered is a measure of the quality of the hydraulic system. The measurement is prescribed for hydraulic presses in Germany by the accident prevention regulations and in Europe by DIN EN ISO 13855 , provided that they are equipped with human labor and / and the removal takes place in this way. The regulations differentiate between presses that are permanently monitored (by automatic units) and those that have to be checked repeatedly after a period has expired. In general, the measurement of the overtravel serves to protect the operator. The results and the description of the measurement must be entered in a press test book. When measuring the overrun, the worst case is always the one that has to be considered (documented).