Latest TBM from Robbins creates tunnels with a flat invert even in hard rock conditions
Developed by Robbins for use in rock up to 200MPa UCS, the MDM5000 excavates with a reciprocating cutterhead and swinging cutterhead motion to create a rectangular cross section tunnel
The rectangular TBM, known as the MDM5000 (which stands for mine development machine with dimensions of 5.0m x 4.5m) is capable of excavating a flat tunnel invert for immediate use by rubber-tired vehicles....
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