Robbins Crossover XRE TBM – (tunneling)
The following article explores the Robbins Crossover XRE TBM — a tunneling machine concept tailored for challenging, variable ground conditions. It describes the machine’s design philosophy, typical applications, operational behavior,…
Hitachi TBM Ø17.6m – (tunneling)
The Hitachi Ø17.6m tunnel boring machine represents a class of very large-diameter mechanized excavators used where underground space requirements exceed conventional tunnel sizes. These giants are designed for ambitious infrastructure…
Robbins Crossover XRE – (tunneling machine)
The Robbins Crossover XRE represents a class of advanced mechanized excavation equipment designed to tackle some of the most challenging underground conditions. Combining attributes of hard-rock tunnel boring machines and…


