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How often do the cutter products of the tunnel boring machine need to be replaced? Hongrun Construction responds.
Jin10 reported on July 31 that Hongrun Construction responded on the interactive platform that tools made of tungsten carbide materials are generally used for soft soil shield tunneling or for the scraper of hard rock shield tunneling. They are typically not replaced during the construction process and are replaced based on wear and damage conditions when the shield tunneling machine returns to the factory for maintenance after the project ends. The daily term for changing tools during shield tunneling refers to the roller cutter. In cases where the rock is harder, the replacement frequency of the roller cutter is higher; however, roller cutters are generally not made of tungsten carbide, and only a small number of toothed roller cutters may use a small amount of tungsten carbide.
