How often do the cutter products of the tunnel boring machine need to be replaced? Hongrun Construction responds.

Jin10 data reported on July 31 that Hongrun Construction responded today on the interactive platform that tools made of tungsten carbide materials are generally used for soft soil shield tunneling or for the scraping tools of hard rock shield tunneling. During the construction process, they usually do not need to be replaced. After the project ends, when the shield machine returns to the factory for maintenance, replacements are made based on the wear and damage conditions. The daily talk about changing tools during shield construction refers to rolling cutters. In cases where the rock is harder, the frequency of changing rolling cutters is higher, but rolling cutters are generally not made of tungsten carbide materials, with only a small number of toothed rolling cutters potentially using a small amount of tungsten carbide.